Model: 2840 Click for Model: 2841 2840 DC Resistance Meter USER MANUAL i
Safety Summary The following safety precautions apply to both operating and maintenance personnel and must be followed during all phases of operation, service, and repair of this instrument. Before applying power to this instrument: Read and understand the safety and operational information in this manual. Apply all the listed safety precautions. Verify that the voltage selector at the line power cord input is set to the correct line voltage.
Do not use this instrument in an electrical environment with a higher category rating than what is specified in this manual for this instrument. You must ensure that each accessory you use with this instrument has a category rating equal to or higher than the instrument's category rating to maintain the instrument's category rating. Failure to do so will lower the category rating of the measuring system. Electrical Power This instrument is intended to be powered from a CATEGORY II mains power environment.
Unless otherwise stated, a ground connection on the instrument's front or rear panel is for a reference of potential only and is not to be used as a safety ground. Probes and Test Leads If the instrument is used with test leads or probes, the test leads or probes must have a safety category rating at least as high as that of the instrument to maintain the instrument's safety category rating.
In the presence of noxious, corrosive, or flammable fumes, gases, vapors, chemicals, or finely-divided particulates. In relative humidity conditions outside the instrument's specifications. In environments where there is a danger of any liquid being spilled on the instrument or where any liquid can condense on the instrument. In air temperatures exceeding the specified operating temperatures.
This instrument is not authorized for use in contact with the human body or for use as a component in a life-support device or system. Do not touch live circuits Instrument covers must not be removed by operating personnel. Component replacement and internal adjustments must be made by qualified service-trained maintenance personnel who are aware of the hazards involved when the instrument's covers and shields are removed.
Hazardous voltages may be present in unexpected locations in circuitry being tested when a fault condition in the circuit exists. Fuse Replacement Fuse replacement must be done by qualified service-trained maintenance personnel who are aware of the instrument's fuse requirements and safe replacement procedures. Disconnect the instrument from the power line before replacing fuses.
This instrument contains one or more cooling fans. For continued safe operation of the instrument, the air inlet and exhaust openings for these fans must not be blocked nor must accumulated dust or other debris be allowed to reduce air flow. Maintain at least 25 mm clearance around the sides of the instrument that contain air inlet and exhaust ports. If mounted in a rack, position power devices in the rack above the instrument to minimize instrument heating while rack mounted.
Compliance Statements Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other European countries with separate collection systems) This product is subject to Directive 2002/96/EC of the European Parliament and the Council of the European Union on waste electrical and electronic equipment (WEEE), and in jurisdictions adopting that Directive, is marked as being put on the market after August 13, 2005, and should not be disposed of as unsorted municipal waste.
CE Declaration of Conformity This instrument meets the requirements of the Low Voltage Directive, 2006/95/EC and Electromagnetic Compatibility Directive, 2004/108/EC using the standards referenced below: Low Voltage - EN 61010-1:2010 - EN 61010-2-030:2010 EMC Directive - EN 61326-1:2013 - EN 61000-3-2:2006+A1:2009+A2:2009 EN 61000-3-3:2008 x
Safety Symbols Refer to the user manual for warning information to avoid hazard or personal injury and prevent damage to instrument. Electric Shock hazard ( On (Supply). This is the AC mains connect/disconnect switch on the front of the instrument. ) ( ) Off (Supply). This is the AC mains connect/disconnect switch on the front of the instrument.
Notations TEXT – Denotes a softkey. TEXT – Denotes a front panel button.
Table of Contents Safety Summary .................................................................................................................... ii Compliance Statements .........................................................................................................ix Safety Symbols ......................................................................................................................xi Notations ...................................................................................
3.4 4 Setup Menus ................................................................................................................. 40 4.1 4.2 4.3 5 3.3.3 BIN BEEP ............................................................................................................. 35 3.3.4 NG COLOR & GD COLOR ..................................................................................... 36 Statistics DisplayT ..............................................................................................
5.2 5.3 5.4 6 Specifications ................................................................................................................ 51 6.1 7 RS232C ............................................................................................................................. 54 USBTMC ........................................................................................................................... 55 USB (USBCDC - Virtual COM) .............................................................
1 General Information 1.1 Product Overview The BK Precision’s 2840 DC Resistance Meter can handle a broad range of resistances measurements. Its maximum accuracy of 0.1% and its range, 1 mΩ to 20 kΩ are vividly displayed on the color LCD touchscreen in 4½ digits. The 2840 is ideal for testing resistances found in PCBs, conductors, relay contacts, interconnections, welding-holes as well as resistors and bigger components.
1 x Test Report Verify that all items above are included in the shipping container. If anything is missing, please contact B&K Precision. Note: User manual is available for download at www.bkprecision.com 1.3 Dimensions The 2840 dimensions are approximately: 255 mm x 110 mm x 361 mm (10.04 in x 4.33 in x 14.22 in) (W x H x D).
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1.6 Keypad Overview Figure 4 - Keypad Keypad Description DISP key Enters the main measurement display and opens display options SETUP key Enters the setup menu.
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2 Getting Started Before connecting and powering up the instrument, please review and go through the instructions in this chapter. 2.1 Input Power Requirements The supply has a universal AC input that accepts line voltage input within: Voltage: 110 V to 240 V (±10%) Frequency: 50 Hz to 60 Hz (±5%) Power supply power range: ≤ 30VA The instrument has 50 and 60 Hz user selectable line filter in . Select 50 Hz or 60 Hz to match the line frequency.
Follow the steps below to check or change fuse and line voltage selection. Step 1 - Check and/or Change Fuse Locate the fuse box above the AC input in the rear panel. With 2 fingers, press both left and right sides of the fuse box and pull it out. Check and replace fuse (if necessary) for the desired line voltage operation.
The line voltage selector is the fuse holder that contains the fuse. Follow the step above to remove the fuse box. The grey colored piece is the fuse holder and the line voltage selector. To change the line voltage configuration between 110 V and 220 V, pull this piece out of the fuse box and rotate it 180 degrees. Place it back in the fuse box. The front of the fuse box has an opening, which should indicate the line voltage you configured. It should display either 110 or 220.
2.3 Input Connections The instrument uses 4-terminal Kelvin test clips to measure more accurately and attain a higher level of performance than 2-terminal clips. Connect the cable to HI and LO terminals on the instrument front panel. Check the color and alignment arrows conformity of the test fixture with that of the connectors (see Figure 8). Do not insert the connectors vertically as this will cause inaccurate measurements (see Figure 9).
Connect AC power cord to the AC receptacle in the rear panel and press the power switch to the | ( ) ON position to turn ON the instrument. The instrument will have a boot screen while loading (see Figure 10), after which the main screen will be displayed. After power on, the loading screen will be displayed for about five seconds. The firmware version is found on the loading screen: Figure 10 - Boot Screen If password protection is enabled, the user will have to input the password to operate the unit.
Blue – DRIVE- White – DRIVE+ Black – SENSE- Red – SENSE+ Figure 11 - Short Connection 27
3 Front Panel Operation The touchscreen menu displays contains all measurement and function options. The universal arrow keys along with the ENTER key can also be used to navigate the touchscreen. The measurement display menu consists of a primary menu and a secondary menu shown to the right of the screen. There are 4 measurement operation displays: 1. Measurement Display 2. Comparator Display 3. Bin Display 4.
When prompted to enter an alphanumeric value, the alphanumeric keypad will be displayed. Figure 13 - Alphanumeric Keypad 3.1 Measurement Display The Measurement Display (MEAS DISP) is the main page for displaying resistance measurements. To access the page press the DISP button and select MEAS DISP in menu options. See 1.1 for additional options.
Touch the measurement result area to zoom the display, removing the menu options from the display. Touch again to return to the normal screen display. Figure 15 - Zoom Display The following parameters are accessible from the Measurement Display: MEAS DISP OPTIONS FUNC RANGE SPEED TRIG DISP R AUTO FAST INT 0 ADJ LPR HOLD MED MAN ↑ SLOW1 EXT ↓ SLOW2 BUS Figure 16 - MEAS DISP Menu Tree 3.1.1 OPTIONS The OPTIONS key allows the user to access the additional measurement options menu.
3.1.2 FUNC The FUNC key allows the user to measure resistance in normal or low voltage modes. The measurement modes are: R: LPR: Resistance tested at low voltage Resistance 3.1.3 RANGE There are 2 resistance measurement modes: 1. Measurement Mode (R) with 7 ranges: 2. 20 mΩ, 200 mΩ, 2 Ω, 20 Ω, 200 Ω, 2 kΩ, 20 kΩ 3. Measurement Mode at Low Voltage (LPR) with 4 ranges: 4. 2 Ω, 20 Ω, 200 Ω, 2 kΩ Follow the instructions below to set the resistance measurement ranges. 1.
3.1.5 TRIG The TRIG key is used to select the trigger options. See 4.1.3 for more details. 3.2 Comparator Display The Comparator Display (COMP DISP) page compares the resistance measurement to absolute limits or a nominal value ± a percentage. The total count (TOT) is incremented and the result is categorized as high (HI), low (LO), or in (IN). To access the page press the DISP button and select COMP DISP in menu options.
COMP DISP OPTIONS COMP MODE COMP DISP OFF COMP BEEP ON % COUNT ABS NOM HIGH % LOW COUNT CLEAR DISP MODE Figure 19 - COMP DISP Menu Tree 3.2.1 OPTIONS The OPTIONS key allows the user to access the additional comparator option menu. The options are: DISP (ON/OFF): Toggle the measurement results display on and off COMP BEEP (OFF/NG/GD): Toggles beep between off, not good (NG) and good (GD). COUNT (ON/OFF): ON begins the comparator count if COMP is ON.
instrument will compare the measured value to the tolerance and determine if the DUT is HI (above tolerance), LO (below tolerance), or IN (within tolerance). The display will show ± percent (∆) difference the measurement is from the nominal value. ABS (Absolute): The user can set absolute HIGH and LOW limits. The instrument will compare the measured value to the absolute limits and determine if the DUT is HI (above the upper limit), LO (below the lower limit), or IN (within limits). 3.
When the measurement is outside of a bin’s tolerance, it is defined as NOT GOOD (NG). When the measurement is inside of a bin’s tolerances, it is defined as GOOD (GD). The following parameters are accessible from the Bin Display: BIN DISP OPTIONS DISP BIN BIN BEEP NG COLOR GD COLOR OFF OFF OFF OFF ON NG GRAY GRAY GD RED RED GREEN GREEN Figure 21 - BIN DISP Menu Tree 3.3.1 OPTIONS The OPTIONS key allows the user to access the additional bin options menu.
3.3.4 NG COLOR & GD COLOR The user can select what color will be displayed when the measurement is NG or GD. While the NG COLOR and GD COLOR settings can be set with the same color, it is recommended to use different colors to distinguish between a NG and GD measurement. NG COLOR OFF: Nothing is displayed when the measurement result differs from the bin setting. GREY: When the measurement result differs from the bin setting, the corresponding bin will be displayed in grey.
3.4 Statistics DisplayT The Statistics Display (STATIS DISP) page calculates the statistical results of sampled measurements. Mean, standard deviation, min and max values among other statistical information are displayed. A sample is taken when the unit is triggered. To access the page press the DISP button and select STATIS DISP in menu options.
The measurement options are: CLEAR: Clear all statistical parameters. TRIG: Trigger measurement execution. 3.4.2 Edge Mode The Edge Mode key allows the user to access two modes. % (Percent Error): The user can set the nominal value (NOM) and the percent error (%). If the nominal value is 100 and percentage is 10, the tolerance will be 100±10%.
NOTE: Variables in the above table: n: The total number of samples. x: Measurement results of each sample measurement. The data are saved in the instrument buffer memory. USL: Upper specification limit. If NOM, % is 100±10% then USL= 110. LSL: Lower specification limit. If NOM, % is 100±10% then LSL = 90. When Cp, Cpk > 1.33, the working capacity is ideal. When 1.33 ≥ Cp, Cpk >1.00, the working capacity is sufficient. When 1.00 ≥ Cp, Cpk, the working capacity is insufficient.
4 Setup Menus The setup menus allow the user to have more control the measurement operations, functions, and calculations. The universal arrow keys along with the ENTER key can also be used to navigate the touchscreen. The setup page menus consists of a primary menu and a secondary menu shown to the right of the screen. There are 3 setup pages: 1. Measurement Setup 2. Bin Setup 3. System Setup 4.1 Measurement Setup The Measurement Setup (MEAS SETUP) page has additional measurement parameters.
The following parameters are accessible from the Measurement Setup page: MEAS SETUP FUNC RANGE TRIG TRIG DELAY R AUTO INT AUTO LPR HOLD MAN ↑ EXT ↓ BUS AVERAGE 1 - 255 SPEED 0 ADJ FASST OFF MANU MED ON INPUT SLOW1 SLOW2 Figure 25 - MEAS SETUP Menu Tree 4.1.1 FUNC This function is identical to FUNC on page. See 3.1.2 for details. 4.1.2 RANGE This function is identical to RANGE on page. See 3.1.3 for details. 4.1.
3. Use the keypad to enter the delay value. Manual trigger delay range is: 0 ms to 9999 ms. Note: If delay time is set to 0 ms, the contact settling time detection cannot be executed. It is recommended to set the delay time to be greater than 1 ms. 4.1.5 AVERAGE Press AVERAGE to open a numeric keypad. The user can set the average number a samples taken per trigger, ranging from 1 to 255. The larger the sample sizes reduces variation at the cost of a longer time to display the result. 4.1.
The following parameters are accessible from the Bin Setup page: BIN SETUP OPTIONS BIN MODE BIN BEEP % OFF ABS NG GD BIN CLEAR BIN NO. STATE 1 2 NOM or HIGH % or LOW 3 ON OFF Figure 27 - BIN SETUP Menu Tree 4.2.1 OPTIONS The OPTIONS key allows the user to access the additional bin setup options menu. The options are: BIN MODE: Toggle between % (percentage error) and ABS (Absolute limits). BIN BEEP: Toggle between three bin beep modes: OFF, NG and GD.
HIGH: Input the high limit for DUT comparison. LOW: Input the low limit for DUT comparison. If BIN MODE: % is selected: NOM: Input the nominal value. %: Input the percentage value. 4.3 System Setup The SYSTEM SETUP page is where the user can change instrument settings. To access the page press the SETUP button and select SYSTEM SETUP in menu options.
The following parameters are accessible from the System Setup page: SYSTEM SETUP OPTIONS TouchTone Language Password Bus Mode Baud Rate AC Freq Handler VCC LCD Style SYSTEM RESET OFF ENGLISH OFF RS232C 9600 50Hz EXT DEFAULT DEFAULT SETTINGS ON CHINESE LOCK SYSTEM USBTMC 19200 60Hz INT CLASSIC LOCK FILE USBVCOM 28800 MODIFY 38400 57600 115200 Figure 29 - SYSTEM SETUP Menu Tree 4.3.1 OPTIONS The OPTIONS key allows the user to access the additional system setup options menu.
4.3.3 Language Press Language to select the displayed language, ENGLISH or CHINESE. The default language is English. 4.3.4 Password Press Password to access the following menu options: OFF: Touch this key to turn off the password protection function. This function requires the user to input the current password to de-activate the password protection. LOCK SYSTEM: Touch this key to enable the password function.
19200 28800 38400 57600 115200 4.3.7 AC Frequency Press AC Freq to select the power supply frequency: 50Hz or 60Hz. Selecting the correct frequency reduces the power line noise’s influence on the instrument. 4.3.8 Handler VCC Press Handler VCC to select INTernal or EXTernal power supply for the handler output. 4.3.9 Setting Time and Date Touch the time or date digits to open the modification menu. For example: 9 o’clock 13 minute and 25 second a.m.
5 FILE MANAGER The file manager menu is used to save and load parameter configuration files (.STA) set by the user. These files can be saved to the internal (I) non-volatile memory or externally (E) to a USB flash drive. Insert an empty USB flash drive to the front panel USB port and wait for the drive to initialize (about five seconds). Figure 30 - File Manager To access the file manager menu: 1. Press the FILE button or select the DATA key that can be found on all display pages, then select FILE. 2.
4. Select SAVE. If an existing STA file is select, it will be overwritten. 5. Select YES to continue. Select NO to cancel. 6. An alphanumeric keypad will open. Type in desired file name. Press Enter. Or Esc to cancel. 5.1.2 Load Configuration Files 1. Navigate to the FILE MANAGER screen. 2. Select desired destination, INTERNAL FILE or EXTERNAL FILE (if USB is attached). 3. Select an STA file or press Page # to navigate PAGE UP or PAGE DOWN to show the next 4 file slots. 4. Select LOAD. 5.
5.2 SCREEN COPY This function can be found in the DATA menu on most displays. Press SAVE SCREEN and a screenshot will be saved in the PIC folder mentioned above. The name assigned to the screenshot will start at zero, but if there are other screenshots from this units in that folder, it will assign the lowest value possible. 5.3 SAVE DATA Enabled when a USB flash drive is attached. When activated, resistance data is continuously saved to an auto-generated CSV onto the drive.
6 Specifications All specifications apply to the unit after: Temperature Stabilization time: 30 mins Operating Temperature: 23 °C ± 5 °C Relativity Humidity: ≤ 80% Specifications are subject to change without notice.
Display Digits Display Digits Measurement Function Resistance Measurement Time Low Voltage Measurement (LPR) Average Samples General specification External USB memory Remote interface Display Operating Temperature, Humidity Temperature, Humidity for basic accuracy Storage Temperature, Humidity Voltage AC Input Frequency Power Consumption SLOW2, SLOW1, MED 5 digits FAST 4 digits FAST: 10 ms, MED: 25 ms, SLOW1: 115 ms, SLOW2: 455 ms (+20 ms when DISPLAY is ON) Open voltage ≤ 40 mV Effective range: 2 Ω, 20
MED SLOW1 SLOW2 Display On Computing Time 25 ms 115 ms 455 ms +20 ms 1 ms Table 4 - Typical Measuring Times 53
7 Remote Control The instrument has RS232 and USB (virtual COM) for remote control. This chapter will describe how users can remotely operate the instrument and use SCPI (Standard Commands for Programmable Instruments) commands via these interfaces. 4.3.5 Bus Mode must be in the respective interface mode in order to communicate. 7.1 RS232C For RS232C connectivity, refer to the diagram below for the pinout information. The RS232C is labeled in the rear panel and is a female DB-9 interface.
Parameter Description Baud rate Parity and data bit Stop bit Flow control 9600, 19200, 28800, 38400, 48000, 57600, and 115200. None/8 bits 1 None Table 6 - RS232 Parameters The RS232C interface does not support hardware flow control (only transmit, receive, and ground pins are used). The programmer should be aware of this communication error. Therefore, limitation and notice the command process time of the instrument.
8 Handler Interface The instrument is equipped with a 9 pin Handler interface for external control and outputting measurement and sorting results. Terminals and Descriptions: Mating connector: Amphenol PN: L77S-DE09S Hood: 17E-1724-1 Pin 1 IO In Name TRIG 2 3 Out Out PASS2 (P2) FAIL 4 5 Power Power +5V EXT_VCC 6 7 8 9 Out Out Out Power PASS1 (P1) PASS3 (P3) EOC EXT_GND Description Trigger signal, falling edge is valid.
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8.2 Isolated Output Each input and output signal is isolated by a photoelectric coupler. The output voltage of each line is determined by the connection between a pull-up resistor and an externally applied voltage (EXT_VCC).
9 SERVICE INFORMATION Warranty Service: Please go to the support and service section on our website at www.bkprecision.com to obtain a RMA #. Return the product in the original packaging with proof of purchase to the address below. Clearly state on the RMA the performance problem and return any leads, probes, connectors and accessories that you are using with the device. Non-Warranty Service: Please go to the support and service section on our website at www.bkprecision.com to obtain a RMA #.
10 LIMITED THREE-YEAR WARRANTY B&K Precision Corp. warrants to the original purchaser that its products and the component parts thereof, will be free from defects in workmanship and materials for a period of three years from date of purchase. B&K Precision Corp. will, without charge, repair or replace, at its option, defective product or component parts. Returned product must be accompanied by proof of the purchase date in the form of a sales receipt.
22820 Savi Ranch Parkway Yorba Linda, CA 92887 www.bkprecision.com © 2017 B&K Precision Corp.
2841 Start 2841 DC Resistance Meter USER MANUAL 62
Safety Summary The following safety precautions apply to both operating and maintenance personnel and must be followed during all phases of operation, service, and repair of this instrument. Before applying power to this instrument: Read and understand the safety and operational information in this manual. Apply all the listed safety precautions. Verify that the voltage selector at the line power cord input is set to the correct line voltage.
Do not use this instrument in an electrical environment with a higher category rating than what is specified in this manual for this instrument. You must ensure that each accessory you use with this instrument has a category rating equal to or higher than the instrument's category rating to maintain the instrument's category rating. Failure to do so will lower the category rating of the measuring system. Electrical Power This instrument is intended to be powered from a CATEGORY II mains power environment.
Probes and Test Leads If the instrument is used with test leads or probes, the test leads or probes must have a safety category rating at least as high as that of the instrument to maintain the instrument's safety category rating. Use only probes that have finger-guards that prevent fingers from slipping down the probe body and contacting the probe's conductor. Inspect the probe or test leads for damage before using them.
In the presence of noxious, corrosive, or flammable fumes, gases, vapors, chemicals, or finely-divided particulates. In relative humidity conditions outside the instrument's specifications. In environments where there is a danger of any liquid being spilled on the instrument or where any liquid can condense on the instrument. In air temperatures exceeding the specified operating temperatures.
If the instrument is damaged, appears to be damaged, or if any liquid, chemical, or other material gets on or inside the instrument, remove the instrument's power cord, remove the instrument from service, label it as not to be operated, and return the instrument to B&K Precision for repair. Notify B&K Precision of the nature of any contamination of the instrument.
Hazardous voltages may be present in unexpected locations in circuitry being tested when a fault condition in the circuit exists. Fuse Replacement Fuse replacement must be done by qualified service-trained maintenance personnel who are aware of the instrument's fuse requirements and safe replacement procedures. Disconnect the instrument from the power line before replacing fuses.
Do not place heavy objects on the instrument. Do not obstruct cooling air flow to the instrument. Do not place a hot soldering iron on the instrument. Do not pull the instrument with the power cord, connected probe, or connected test lead. Do not move the instrument when a probe is connected to a circuit being tested.
Compliance Statements Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other European countries with separate collection systems) This product is subject to Directive 2002/96/EC of the European Parliament and the Council of the European Union on waste electrical and electronic equipment (WEEE), and in jurisdictions adopting that Directive, is marked as being put on the market after August 13, 2005, and should not be disposed of as unsorted municipal waste.
CE Declaration of Conformity This instrument meets the requirements of the Low Voltage Directive, 2006/95/EC and Electromagnetic Compatibility Directive, 2004/108/EC using the standards referenced below: Low Voltage - EN 61010-1:2010 - EN 61010-2-030:2010 EMC Directive - EN 61326-1:2013 - EN 61000-3-2:2006+A1:2009+A2:2009 - EN 61000-3-3:2008 71
Safety Symbols Refer to the user manual for warning information to avoid hazard or personal injury and prevent damage to instrument. Electric Shock hazard ( On (Supply). This is the AC mains connect/disconnect switch on the front of the instrument. ) ( ) Off (Supply). This is the AC mains connect/disconnect switch on the front of the instrument.
Notations TEXT – Denotes a softkey. TEXT – Denotes a front panel button.
Table of Contents Safety Summary .................................................................................................................. 63 Compliance Statements ....................................................................................................... 70 CE Declaration of Conformity ............................................................................................... 71 Safety Symbols .........................................................................................
3.4 4 3.3.1 OPTIONS ............................................................................................................. 97 3.3.2 BIN ...................................................................................................................... 97 3.3.3 BIN BEEP ............................................................................................................. 97 3.3.4 NG COLOR & GD COLOR .....................................................................................
4.5 5 FILE MANAGER .............................................................................................................117 5.1 5.2 5.3 6 RS232C ........................................................................................................................... 125 USBTMC ......................................................................................................................... 126 USB (USBCDC - Virtual COM) ....................................................................
10 LIMITED THREE-YEAR WARRANTY ................................................................................
1 General Information 1.1 Product Overview The BK Precision’s 2841 DC Resistance Meter is can handle a broad range of resistances measurements. Its maximum accuracy of 0.01% and its range, 0.1 μΩ to 110 MΩ are vividly displayed on the color LCD touchscreen in 5½ digits. The 2841 is ideal for testing resistances found in PCBs, conductors, relay contacts, interconnections, welding-holes as well as resistors and bigger components.
the original packing carton for possible future reshipment. Every instrument is shipped with the following contents: 1 x 2841 Series DC Resistance meter 1 x 4-terminal Kelvin test clips 1 x Temperature Probe 1 x AC Power Cord 1 x Certificate of Calibration 1 x Test Report Verify that all items above are included in the shipping container. If anything is missing, please contact B&K Precision. Note: User manual is available for download at www.bkprecision.com 1.
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1.6 Keypad Overview Figure 37 - Keypad Keypad Description DISP key Enters the main measurement display and opens display options SETUP key Enters the setup menu.
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2 Getting Started Before connecting and powering up the instrument, please review and go through the instructions in this chapter. 2.1 Input Power Requirements The supply has a universal AC input that accepts line voltage input within: Voltage: 110 V – 240 V (±10%) Frequency: 50 Hz – 60 Hz (±5%) Power supply power range: ≤ 30VA The instrument has 50 and 60 Hz user selectable line filter in . Select 50 Hz or 60 Hz to match the line frequency.
Check and/or Change Fuse 1. Locate the fuse box next to the AC input connector in the rear panel (see Figure 3 - Rear Panel) 2. With a small flat blade screwdriver, insert into the fuse box slit to pull and slide out the fuse box as indicated below. 3. Check and replace fuse (if necessary). Figure 39 - Replacing Fuse Any disassembling of the case or changing the fuse not performed by an authorized service technician will void the warranty of the instrument. 2.
Figure 40 Connection Alignment Figure 41 Do Not Connect Vertically 2.4 Preliminary Check Complete the following steps to verify that the instrument is ready for use. 1. Verify AC Input Voltage Verify and check to make sure proper AC voltages are available to power the instrument. The AC voltage range must meet the acceptable specification as explained in Input Power Requirements. 2.
Figure 42 - Boot Screen If password protection is enabled, the user will have to input the password to operate the unit. The default password is 2841 See 4.3.4 Password for more details. 2.5 Cable Calibration The resistance in the 4-terminal cables can be compensated for through the zero adjustment (0 ADJ) function. This should be performed when connecting a new cable to the instrument, when the environment temperature changes ±5 °C, or when desired.
Blue – DRIVE- White – DRIVE+ Black – SENSE- Red – SENSE+ Figure 43 Short Connection 88
3 Front Panel Operation The touchscreen menu displays contains all measurement and function options. The universal arrow keys along with the ENTER key can also be used to navigate the touchscreen. The measurement display menu consists of a primary menu and a secondary menu shown to the right of the screen. There are 4 measurement operation displays: 1. Measurement Display 2. Comparator Display 3. Bin Display 4.
Figure 45 Alphanumeric Keypad 3.1 Measurement Display The Measurement Display (MEAS DISP) is the main page for displaying resistance and temperature measurements. See 1.1 for additional options. To access the page press the DISP button and select MEAS DISP in menu options.
Touch the measurement result area to zoom the display, removing the menu options from the display. Touch again to return to the normal screen display. Figure 47 Zoom Display The following parameters are accessible from the Measurement Display. OPTIONS FUNC •DISP •0 ADJ Compensation •0 ADJ •OVC •SELF CAL •SAVE DATA •R •R-T •T •LPR •LPR-T RANGE •AUTO •HOLD •↑ •↓ SPEED •FAST •MED •SLOW1 •SLOW2 TC/∆t •TC •∆t 3.1.
OVC (ON/OFF): Toggle Offset Voltage Compensation on and off. OVC increases accuracy at the cost of increased measurement time. Note: OVC - When two different materials come into contact, a thermo electromotive force (EMF) will be generated on the contact surface and will vary with the ambient temperature. The higher the ambient temperature is, the larger the thermo electromotive force will be. The principle of OVC is to apply an inverse current through the test terminals and the formula is 𝑹 = value.
AUTO: Automatically selects the range mode depending on the resistance detected. HOLD: Lock to the current resistance measurement range. ↑ (+): Increase measurement range and sets the measurement to HOLD. ↓ (- ): Decrease measurement range and sets the measurement to HOLD. If FUNC is set to T, resistance RANGE menu options are disabled and will display AUTO. The temperature measurement (T) range is fixed at -10 o C to 99.9 o C. 3.1.4 SPEED The SPEED controls the measurement time.
3.2 Comparator Display The Comparator Display (COMP DISP) page compares the resistance measurement to absolute limits or a nominal value ± a percentage. The total count (TOT) is incremented and the result is categorized as high (HI), low (LO), or in (IN). To access the page press the DISP button and select COMP DISP in menu options. Figure 48 - Comparator Display Touch the measurement result area to enlarge display, removing the menu options from the display.
The following parameters are accessible from the Comparator Display. OPTIONS • DISP • COMP BEEP • COUNT • COUNT CLEAR • SAVE DATA COMP • OFF • ON COMP MODE •% • NOM •% • ABS • HIGH • LOW 3.2.1 OPTIONS The OPTIONS key allows the user to access the additional comparator option menu. The options are: DISP (ON/OFF): Toggle the measurement results display on and off COMP BEEP (OFF/NG/GD): Toggles beep between off, not good (NG) and good (GD).
Figure 50 Comparator Display Percent Error ABS (Absolute): The user can set absolute HIGH and LOW limits. The instrument will compare the measured value to the absolute limits and determine if the DUT is HI (above the upper limit), LO (below the lower limit), or IN (within limits). 3.3 Bin Display The Bin Display (BIN DISP) page places the resistance measurement in up to 10 user-defined bins. See 0 for instructions to define bins. The bin operation is executed when the instrument is triggered.
The following parameters are accessible from the Bin Display. OPTIONS BIN • DISP • SAVE DATA • OFF • ON BIN BEEP • OFF • NG • GD NG COLOR • OFF • GRAY • RED • GREEN GD COLOR • OFF • GRAY • RED • GREEN 3.3.1 OPTIONS The OPTIONS key allows the user to access the additional bin options menu. The options are: DISP (ON/OFF): Toggle the resistance measurement results display on and off SAVE DATA: Enabled when a USB flash drive is attached.
OFF: Nothing is displayed when the measurement result differs from the bin setting. GREY: When the measurement result differs from the bin setting, the corresponding bin will be displayed in grey. RED: When the measurement result differs from the bin setting, the corresponding bin will be displayed in red. GREEN: When the measurement result differs from the bin setting, the corresponding bin will be displayed in green.
The following parameters are accessible from the Statistical Display. OPTIONS •CLEAR •TRIG •SAVE DATA EdgeMode •% •NOM •% •ABS •Hi •Li STATUS •OFF •ON 3.4.1 OPTIONS The OPTIONS key allows the user to access the additional statistics options menu. The measurement options are: CLEAR: Clear all statistical parameters. TRIG: Trigger measurement execution. SAVE DATA: Enabled when a USB flash drive is attached.
OFF: When OFF is selected, the statistic measurements are disabled. All other functions and buttons are enabled. 3.4.
Min: Minimum measurement result among the current data set. MinIndex: Sample index number that corresponds to the minimum measurement result. Example: NOM, % is 100±10% Sample Index 1 2 3 4 5 6 8 Result (Ω) 100.4 101.6 103.7 98.4 87.9 112.1 86.5 Results: Hi = 1, Lo = 2, In = 5, Max = 112.1, MaxIndex = 6, Min = 86.
4 Setup Menus The setup menus allow the user to have more control the measurement operations, functions, and calculations. The universal arrow keys along with the ENTER key can also be used to navigate the touchscreen. The setup page menus consists of a primary menu and a secondary menu shown to the right of the screen. There are 5 setup pages: 5. Measurement Setup 6. Temperature Compensation (TC/∆t) Setup 7. Bin Setup 8. System Setup 9. LAN Setup 4.
The following parameters are accessible from the Measurement Setup page: mR+b FUNC •OFF •ON •R •R-T •T •LPR •LPR-T 200 mΩ •1A •100mA DETECT •AUTO •MANU •INPUT RANGE TRIG •AUTO •HOLD •↑ •↓ Meas Mode •SLOW •FAST TRIG DELAY •INT •MAN •EXT •BUS •AUTO •MANU •INPUT SPEED •FASST •MED •SLOW1 •SLOW2 AVERAGE •1 - 255 m b •-1000000 to 1000000 •-1000000 to 1000000 Adjust •AUTO •MANU 4.1.1 mR + b This algebraic function displays a modified result to the resistance measurement display.
Note: The instrument is in waiting mode until triggered. 4.1.5 TRIG DELAY The TRIG DELAY enables the user to select between AUTO and MANU (manual) modes. Automatic trigger delay is determined by Table 11 Auto Trigger Delay. To set a manual trigger delay: 1. Press MANU 2. Press INPUT for open a numeric keypad. 3. Set delay. Manual trigger delay range is: 0 ms to 9999 ms. Note: TRIG DELAY cannot be less than the DETECT time. The instrument will prompt a message “Data out of range.
MANU: Detection time manually set. INPUT: Opens numeric keypad to modify manual detection timing. 4.1.9 Meas Mode The instrument has an internal 10 nF capacitor that can be connected or disconnected across the terminals. Commonly used when measuring large resistors and inductors. The user can select between the following modes: SLOW: Connects the 10 nF capacitor across the test terminals. FAST: Disconnects the 10 nF capacitor across the test terminals. 4.1.
The following parameters are accessible from the Temperature Compensation Setup page: TC ∆t •t0 (°C) •αt0 (ppm) •R1 (Ω) •t1 (°C) •k Analog •V1 (V) •V2 (V) •T1 (°C) •T2 (°C) TC/∆t •OFF •TC •∆t T.SENS •Pt •AnLG_In Note: 1. The temperature probe detects ambient temperature, not DUT surface temperature. 2. Before measurement, warm up the instrument and probe for about half an hour. 3. The temperature probe should be placed as close as possible to the DUT but not in direct contact. 4.2.
4.2.3 Types of Temperature Sensors The instrument is designed to use two types of temperature input: Pt and Analog Input. Touch the T.SENS key, the following menu options will be displayed: Pt: Provided temperature probe. AnLG_In: Linearly converts probe input voltage (0 to 2 V) into temperature based on Analog Input settings. See 4.2.6 Analog Input. 4.2.4 Temperature Correction (TC) Function The resistance of a material changes with temperature according to the material’s temperature coefficient.
t1 – DUT temperature at the start of the thermal test. ta – Ambient temperature at the end of the thermal test. k – Variance ration of the temperature coefficient when the conductor is at 0 °C. Example: A copper DUT is measure before operation: R1 is 100 mΩ, t1 is 20 °C. A second measurement is taken after operation and power is removed: R2 is 105 mΩ, ta is 25 °C. k is 234.5. The temperature change is calculated: 𝜟𝒕 = 𝑹𝟐 𝟏𝟎𝟓 𝒙𝟏𝟎−𝟑 (𝒌 + 𝒕𝟏 ) – (𝒌 + 𝒕𝒂 ) = (𝟐𝟑𝟒. 𝟓 + 𝟐𝟎) – (𝟐𝟑𝟒. 𝟓 + 𝟐𝟓) = 𝟕.
V2, T2 V1, T1 Figure 55 - Analog Input Voltage vs Temperature Note: V1 and V2 range from 0.00V to 2.00V while T1 and T2 range from -99.9 °C to 999.9 °C. 4.3 BIN SETUP The BIN SETUP page is where the user can define the parameters for up to 10 bins. To access the page press the SETUP button and select BIN SETUP in menu options.
The following parameters are accessible from the Bin Setup page: OPTIONS • BIN MODE • BIN BEEP • BIN CLEAR • BIN OUT BIN NO. 0 to 9 • PgUp • PgDn • DEL STATE • OFF • ON 4.3.1 OPTIONS The OPTIONS key allows the user to access the additional bin setup options menu. The options are: BIN MODE: Toggle between % (percentage error) and ABS (Absolute limits). BIN BEEP: Toggle between three bin beep modes: OFF, NG and GD. BIN CLEAR: Clear all setting parameters for all bins.
NOM: Input the nominal value. %: Input the percentage value. 4.4 SYSTEM SETUP The SYSTEM SETUP page is where the user can change instrument settings. To access the page press the SETUP button and select SYSTEM SETUP in menu options.
The options are: SYSTEM RESET: Performs a soft reset on the instrument. DEFAULT SETTINS: Restores default settings. 4.4.2 TouchTone Press TouchTone to select the touch tone ON or OFF. When selected ON, the tone is played when a touch screen key is touched or a button is pressed. OFF disables the tone. 4.4.3 Language Press Language to select the displayed language, ENGLISH or CHINESE. The default language is English. 4.4.
4.4.5 Bus Mode Press Bus Mode to select the communication interface in the menu options. All interfaces are accessible on the rear panel. RS232C LAN USBTMC USBVCOM 4.4.6 Baud Rate Press Baud Rate to select from the following six baud rates: 9600 19200 28800 38400 57600 115200 4.4.7 EOC Signal The EOC signal can be found on handler pin 12.
Figure 58 External Trigger Timing Figure 59 Internal Trigger Timing 4.4.8 Err.OUT signal The Err.OUT signal can be found on pin 11 of the [Handler]. A measurement error occurs when the instrument has lost contact with a DUT. Press Err.OUT to select between: SYNC: If the measurement error is detected during t2, the instrument will output an error signal. No error detection will be taken in other time ranges.
AC Frequency Press AC Freq to select the power supply frequency: 50Hz or 60Hz. Selecting the correct frequency reduces the power line noise’s influence on the instrument. 4.4.9 Setting Time and Date Touch the time or date digits to open the modification menu. For example: 9 o’clock 13 minute and 25 second a.m. on November 12, 2010 will be shown as 10-11-12 09:13:25. Operations are as follows: Touch the time zone to be modified, the following items will be displayed. ++: Increment by 5.
The LAN SETUP page is where the user can setup the instrument up to connect over a Local Area Network (LAN). To access the page press the SETUP button and select LAN SETUP in menu options. Figure 60 LAN SETUP The user can modify all addresses on the screen by touching the number zone and accessing the numeric keypad.
5 FILE MANAGER The file manager menu is used to save and load parameter configuration files (.STA) set by the user. These files can be saved to the internal (I) non-volatile memory or an external (E) USB flash drive. Insert an empty USB flash drive to the front panel USB port and wait for the drive to initialize (about five seconds). To access the file manager menu: 1. Press the FILE button or select the DATA key that can be found on all display pages, then select FILE. 2.
4. Select SAVE. If an existing STA file is select, it will be overwritten. 5. Select YES to continue. Select NO to cancel. 6. An alphanumeric keypad will open. Type in desired file name. Press Enter. Or Esc to cancel. 5.1.2 Load Configuration Files 1. Navigate to the FILE MANAGER screen. 2. Select desired destination, INTERNAL FILE or EXTERNAL FILE (if USB is attached). 3. Select an STA file or press Page # to navigate PAGE UP or PAGE DOWN to show the next 4 file slots. 4. Select LOAD. 5.
5.2 SAVE SCREEN This function can be found in the DATA menu on most displays. Press SAVE SCREEN and a screenshot will be saved in the PIC folder mentioned above. The name assigned to the screenshot will start at zero, but if there are other screenshots from this units in that folder, it will assign the lowest value possible. 5.3 USB Flash Driver Requirements The instrument features a USB host interface for connecting an external USB flash drive.
6 Specifications All specifications apply to the unit after: Temperature Stabilization time: 30 mins Operating Temperature: 23 °C ± 5 °C Relativity Humidity: ≤ 80% Specifications are subject to change without notice. Rd = Measured Value Fs = Full range 6.1 Specifications Resistance Measurement Reading Digits 5 ½ digits Measurement Range 0.
Display Digits SLOW2, SLOW1, MED 6 digits 3 digits, maximum display number: 999.9 °C Display Digits Temperature range FAST 5 digits 3 digits, maximum display number: 999.
mΩ 200 mΩ 200.000 ± 2.000 mΩ 200 mΩ 200.000 ± 2.000 mΩ 2 Ω 2000.00 ± 20.00 mΩ 20 Ω 20.0000 ± 0.2000 Ω 200 Ω 200.000 ± 2.000 Ω 2 kΩ 2000.00 ± 020.00 Ω 20 kΩ 20.0000 ± 0.2000 kΩ 100 kΩ 110.000 ± 2.000 kΩ 1 MΩ 1100.00 ± 20.00 kΩ 10 MΩ 11.000 ± 0.2000 MΩ 100 110.00 ± MΩ 2.000 MΩ OFF ON 0.25+0.006 0.25+0.001 0.25+0.008 0.25+0.001 0.25+0.012 0.25+0.001 0.25+0.03 0.25+0.002 1A ±5% 5Vmax OFF ON 0.35+0.01 0.35+0.001 0.35+0.012 0.35+0.001 0.35+0.015 0.35+0.002 0.35+0.03 3500+80 100mA ±5% 2.
2Ω 20 Ω 200 Ω 2 kΩ 2000.00 ± 020.00 mΩ 20.0000 ± 0.2000 Ω 200.000 ± 02.000 Ω 2000.00 ± 020.00 Ω OF F 0.05+0.01 0.05+0.012 0.05+0.015 0.05+0.02 ON 0.05+0.001 0.05+0.001 0.05+0.002 0.05+0.008 OF F 0.05+0.012 0.05+0.015 0.05+0.02 ON 0.05+0.001 0.05+0.001 0.05+0.002 0.05+0.008 OF F 0.05+0.012 0.05+0.015 0.05+0.02 ON 0.05+0.001 0.05+0.001 0.05+0.002 0.05+0.008 OF F 0.05+0.012 0.05+0.015 0.05+0.02 0.05+0.001 0.05+0.002 0.05+0.008 0.05+0.01 0.05+0.01 0.05+0.01 ON 0.05+0.
Resistance Measurement Delay Rang 20m 200m 2 e (Ω) OVC 30 30 3 FUNC OFF R OVC (ms) 100 100 100 ON OVC ― ― 3 FUNC OFF LPR OVC (ms) ― ― 100 ON 20 200 2k 20k 100k 1M 10M 100M 3 3 3 3 10 50 100 1000 100 100 100 100 ― ― ― ― 3 3 15 ― ― ― ― ― 100 100 100 ― ― ― ― ― 6.5 Accuracy for Temperature Measurement (TPTC2) Temperature range -10.0 to 39.9 °C 40.0 to 99.9 °C Resolution 0.1 °C 0.1 °C Accuracy in six months ±0.30%Rd ± 0.5 °C * ±0.30%Rd ± 1.
7 Remote Control The instrument has RS232, USB (virtual COM), and LAN interfaces for remote control. This chapter will describe how users can remotely operate the instrument and use SCPI (Standard Commands for Programmable Instruments) commands via these interfaces. 4.3.5 Bus Mode must be in the respective interface mode in order to communicate. 7.1 RS232C For RS232C connectivity, refer to the diagram below for the pinout information. The RS232C is labeled in the rear panel and is a female DB-9 interface.
Parameter Description Baud rate 9600, 19200, 28800, 38400, 48000, 57600, and 115200. Parity and data bit None/8 bits Stop bit Flow control 1 None The RS232C interface does not support hardware flow control (only transmit, receive, and ground pins are used). The programmer should be aware of this communication error. Therefore, limitation and notice the command process time of the instrument.
7.4 LAN (Ethernet) The instrument can be controlled via LAN interface. See 0 for setup instructions. Connect over Ethernet cable to a network or directly to a computer. Enter the instrument’s IP address into a browser. Navigate the interface with the menu pages on the left of the screen. 7.5 Remote Commands The instrument supports some SCPI commands and some instrument specific commands.
8 Handler Interface The instrument is equipped with a 50 pin Handler interface for external control and outputting measurement and sorting results. If BIN OUT is BCD, pins 14 to 50 are BCD outputs and BIN, OB, and OUT are disabled.
TRIG：External trigger will take one measurement while this signal transitions from high to low. 1. This signal will be ignored if the trigger setting is set to internal trigger. 2. This signal will be ignored when no 4-terminal connector attached. 3. This signal will be ignored while loading the file. LOAD0 to LOAD4: Load one of up to 30 internal STA configuration files. LOAD0 is low-order, while LOAD4 is high-order.
LOAD4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 LOAD3 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 LOAD2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 LOAD1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 Note: The file load cannot be controlled through RS232.
8.2 Output Signal ERR: Error signal output is divided into synchronous measurement error signal output and asynchronous measurement error signal output. The measurement error signal is outputted together with EOC as synchronous error signal output, not asynchronous error signal output. INDEX: Transitions from low to high to indicate that the instrument measurement is finished. The instrument begins calculating the DUT’s resistance after the measurement is finished. EOC: End of conversion signal.
8.4 Isolated Output Each input and output signal is isolated by a photoelectric coupler. The output voltage of each line is determined by the connection between a pull-up resistor and an externally applied voltage (EXTV).
9 SERVICE INFORMATION Warranty Service: Please go to the support and service section on our website at www.bkprecision.com to obtain a RMA #. Return the product in the original packaging with proof of purchase to the address below. Clearly state on the RMA the performance problem and return any leads, probes, connectors and accessories that you are using with the device. Non-Warranty Service: Please go to the support and service section on our website at www.bkprecision.com to obtain a RMA #.
10 LIMITED THREE-YEAR WARRANTY B&K Precision Corp. warrants to the original purchaser that its products and the component parts thereof, will be free from defects in workmanship and materials for a period of three years from date of purchase. B&K Precision Corp. will, without charge, repair or replace, at its option, defective product or component parts. Returned product must be accompanied by proof of the purchase date in the form of a sales receipt.
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