CONAX BUFFALO TECHNOLOGIES TSD 43.021 Rev.
CONAX BUFFALO TECHNOLOGIES TSD 43.021 Rev. ORIG Page 2 of 28 TABLE OF CONTENTS SECTION DESCRIPTION PAGE 1.0 SCOPE 3 2.0 APPLICABLE DOCUMENTS 3 3.0 GENERAL DESCRIPTION AND STANDARD FEATURES 3 4.0 SPECIFICATIONS 4 5.0 INSTALLATION 5 6.0 SOFTWARE INSTALLATION AND CONFIGURATION 6 7.0 TRIMMING FUNCTION 21 8.0 SIMULATION FUNCTION 23 9.
CONAX BUFFALO TECHNOLOGIES 1.0 TSD 43.021 Rev. ORIG Page 3 of 28 SCOPE This manual provides instructions on setup and use of Conax Buffalo Technologies, PC- Programmable, SPM-4XX series Indicators. 2.0 APPLICABLE DOCUMENTS 2.1 Conax Buffalo Technologies (CBT) Sales Order. 2.2 Customer Purchase Order (specified in CBT Sales Order). 2.3 Either CBT Part Number 80-0034-001 (CDROM) or 80-0034-002 (3.5” diskettes), Programming Software for PC-Programmable Indicators. 2.
CONAX BUFFALO TECHNOLOGIES 4.0 SPECIFICATIONS 4.1 SENSOR INPUT TYPES TSD 43.021 Rev. ORIG Page 4 of 28 THERMOCOUPLE: Most standard types and all special types using customer defined tables and polynomials. RTD (2, 3 or 4 wire configuration): Platinum (e.g. Pt-100), Nickel, Copper, and other RTDs (includes Callander-Van-Dusen and custom sensor linearization with user defined tables and polynomials up to 10th order).
CONAX BUFFALO TECHNOLOGIES TEMPERATURE STABILITY: TSD 43.021 Rev. ORIG Page 5 of 28 Better than 0.012%/˚C of span COLD JUNCTION COMPENSATION: Automatically corrected to within ±0.5°C for all T/C types. 4.4 OUTPUT RESOLUTION: (optional) 12-bit D/A with 0.025% of span I/O ISOLATION: 2000 VDC or peak AC (input/output/supply) RFI PROTECTION: Better than 0.5% effect of span at 20 – 1000 MHz and at field strength of 20 V/m. CE marked.
CONAX BUFFALO TECHNOLOGIES 6.0 SOFTWARE INSTALLATION AND CONFIGURATION 6.1 SOFTWARE INSTALLATION TSD 43.021 Rev. ORIG Page 6 of 28 CAUTION BEFORE INSTALLING THE NEW CONFIGURATION SOFTWARE, IT IS ALWAYS ADVISABLE TO CLOSE ALL OTHER APPLICATIONS INCLUDING VIRUS SCANNERS AND OFFICE SUITES. FAILURE TO DO SO MAY RESULT IN THE CORRUPTION OF CERTAIN COMMON FILES. The configuration software is provided on either one CDROM or two 3.5” diskettes. It may be installed on any Windows® operating systems.
CONAX BUFFALO TECHNOLOGIES TSD 43.021 Rev.
CONAX BUFFALO TECHNOLOGIES 6.2 TSD 43.021 Rev. ORIG Page 8 of 28 CONFIGURATION 6.2.1 Connect the PA-400 programming adapter into the proper serial port of the PC. 6.2.2 Click on the Configuration icon to start the program. 6.2.3 Connect the plug on the transmitter side of the PA-400 to the 6-pin jack on the indicator, behind the front bezel (lens) in the lower-right corner. See Figure 2. 6.2.
CONAX BUFFALO TECHNOLOGIES TSD 43.021 Rev. ORIG Page 9 of 28 6.2.5 You can now view or modify any setting. Select the input sensor type by clicking on the “Select Sensor” button. From the Input Sensor Selection screen choose the proper “TAB” that corresponds to the sensor of your choice. The specific sensor screen will now be presented. See Figure 4. Enter one of several methods to precisely describe the sensor’s temperature reactance curve and press the OK button to return to the previous screen.
CONAX BUFFALO TECHNOLOGIES TSD 43.021 Rev. ORIG Page 10 of 28 6.2.6 Units. Next, verify or select the “Engineering Units”. If appropriate, open the pull-down menu and select the appropriate units of either °F, °C or °K. See Figure 6. Figure 6 – Selection of Engineering Units 6.2.7 Range. TAB or click to the next box which is “Zero”. Just to the right of the “Zero” box in purple text is the range of allowable values for the selected sensor. Enter the “Zero” value to define the specific input low.
CONAX BUFFALO TECHNOLOGIES TSD 43.021 Rev. ORIG Page 11 of 28 digits that can be displayed before the decimal point depend on the display capability of the meter (i.e. 4 to 6 digits in total). 6.2.10 Sensor failure (Open) or Burnout. This feature is only relevant on SPM units with the Analog Output (retransmission) option. An open sensor will cause the display to read “EEEEE” for this error mode. TAB to the “Burnout” mode and select from the pull down menu either “Upscale” or “Downscale”. 6.2.
CONAX BUFFALO TECHNOLOGIES TSD 43.021 Rev. ORIG Page 12 of 28 6.2.13 Next, TAB over to the I.D. Tag: and type in up to 8 alpha-numeric characters for a description to be saved in the transmitter’s memory. You may do the same for the Job: and Message: boxes and type in information in these boxes. Message will store up to 16 characters. See Figure 9. 6.2.14 Download to the indicator. Once you have verified all the information on the screen, you are ready to download the information to the indicator.
CONAX BUFFALO TECHNOLOGIES TSD 43.021 Rev. ORIG Page 13 of 28 Figure 10 – Example Input Feature Selection Screen 6.3.2.1 Set points. This screen controls the triggering of two relays. First, determine and mark the direction of the alarm activation as being either a “High” or “Low” alarm. You can enter either “Trip ON” and “Trip OFF” values or “Trip Point” and “Dead Band”. The difference between Trip ON and OFF is equal to the dead band (or hysteresis).
CONAX BUFFALO TECHNOLOGIES TSD 43.021 Rev. ORIG Page 14 of 28 6.3.4 You can enable another toolbar icon that can configure several indicators with the same settings. To do so, click “Options” and “General” from the top menu of the main screen. Enable the “Regeneration Enable” option and click “OK”. To configure a new indicator with the preloaded settings, click the regeneration icon, on the icon bar of the main screen.
CONAX BUFFALO TECHNOLOGIES TSD 43.021 Rev. ORIG Page 15 of 28 Table 1 – Example Printout Configuration and Calibration Information Device Status Unit Type: Serial Number: Tag: Message: Job: PO Number: PO Date: Last Configuration Date: SPM-400 DEMO133 970911 Product Intake Chiller 971210MES Wed, December 17, 1997 Fri, January 16, 1998 Sensor Type Thermocouple, type K, Standard Mode, Single Input Input Range and Setup Option Engineering Units: Zero: Full Scale: Burnout: Line Frequency: Fahrenheit 0.
CONAX BUFFALO TECHNOLOGIES 6.4 TSD 43.021 Rev. ORIG Page 16 of 28 INPUT FILTERING Input filtering is of great importance in measurement application with a low level signal. The effect of low pass filtering is to average out small transients of the input parameter resulting from process and sensor noise, as well as externally generated electrical noises. To overcome the sluggish response, associated with long filter settings, the indicator uses a Selective Filtering technique.
CONAX BUFFALO TECHNOLOGIES 6.5 TSD 43.021 Rev. ORIG Page 17 of 28 USER DEFINED TABLES For applications where the input is non-standard and non-linear, a User Defined Table (UDT) provides a simple and convenient way of linearizing an input to a known set of datum. Two methods are used for creating “User Defined Tables”. One is for temperature sensors such as thermocouples and RTDs. The other is for inputs such as mV, Volts, mA, resistance, and potentiometers.
CONAX BUFFALO TECHNOLOGIES TSD 43.021 Rev. ORIG Page 18 of 28 Table 2 *User defined table for *IRt/c.xxx-K-80F/27C *Minimum range -70 degrees Celsius *Maximum range 200 degrees Celsius *First column degrees Celsius *Second Column mV *Delta 10 degrees *Use with Thermocouple Sensor Type, User defined table *Created November 7, 1997 -70.00 -2.59 -60.00 -2.26 -50.00 -1.92 -40.00 -1.57 -30.00 -1.20 -20.00 -0.82 -10.00 -0.42 0.00 0.00 10.00 0.44 20.00 0.90 30.00 1.38 40.00 1.90 50.00 2.44 60.00 3.01 70.00 3.
CONAX BUFFALO TECHNOLOGIES TSD 43.021 Rev. ORIG Page 19 of 28 Figure 11 6.5.3 Using the UDT. When configuring the sensor, select “User Defined Table” under the “Mode” section (usually the bottom-right of the “Input Sensor Selection” screen). A popup screen will appear asking for the “Minimum range” and “Maximum range” to use of the tabular data within the table. This range must exist within the *.TBL file, and it is highly suggested that a few values outside this range are also included in the file.
CONAX BUFFALO TECHNOLOGIES 6.6 TSD 43.021 Rev. ORIG Page 20 of 28 CALLENDAR-VAN-DUSEN APPLICATIONS The Callendar-Van-Dusen formula provides constants for a third order polynomial equation, which then approximates the actual Pt-100 RTDs resistance to a high degree of precision. Of course, the specific RTD needs to be precisely characterized by exact temperature testing, and the coefficients should then be calculated. See Figure 12.
CONAX BUFFALO TECHNOLOGIES TSD 43.021 Rev. ORIG Page 21 of 28 Please Note: The calculated values may be verified by using the device in simulation mode (Alt+S from the main screen) and seeing that the device indeed provides the proper temperatures (and/or output values in mA) for the resistances found by the element’s tests, or vice versa. 6.7 POLYNOMIAL FUNCTIONS Some sensor outputs can be characterized by a non-linear transfer function of the form shown in Equation 1.
CONAX BUFFALO TECHNOLOGIES TSD 43.021 Rev. ORIG Page 22 of 28 To enter the trimming screen, click “Device” then “Trimming” from the main screen’s menu bar. To apply trimming, first, you must check the “Trim On”. To remove trimming, simply uncheck the “Trim On” box. See Figure 14. To trim either the zero and/or span, click the “UnLock” button at the bottom of the appropriate scroll bar(s). You will now be able to either move the slider or click on the up or down arrows to change the output.
CONAX BUFFALO TECHNOLOGIES 8.0 TSD 43.021 Rev. ORIG Page 23 of 28 SIMULATION FUNCTION The simulation function allows the user to check the relationship between the transmitter’s configured input – in basic electrical units (such as mV or Ohms, etc.) to the scaled or engineering units (such as °F or °C) – and to its output – (in mA and %). The simulation function also is very useful for testing a “Sensor vs.
CONAX BUFFALO TECHNOLOGIES TSD 43.021 Rev. ORIG Page 24 of 28 Warning: The indicator is running in a special software mode while in simulation mode. If you happen to lose communications before the normal software is written back to the indicator, the indicator will continuously output the simulated value. To restore, simply re-download the settings/configuration to the indicator. 9.
CONAX BUFFALO TECHNOLOGIES TSD 43.021 Rev.
CONAX BUFFALO TECHNOLOGIES TSD 43.021 Rev.
CONAX BUFFALO TECHNOLOGIES Figure A3 - SPM for AC Measurement Wiring Diagram TSD 43.021 Rev.
CONAX BUFFALO TECHNOLOGIES TSD 43.021 Rev.
