User’s manual FLIR CM78 True RMS Clamp/DMM with infrared thermometer and Bluetooth METERLiNK®
User’s manual FLIR CM78 #T559826; r.
Table of contents 1 Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 Copyright. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Quality assurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.3 Documentation updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.
Table of contents 7 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 7.1 General specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 7.2 Electrical range specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 7.3 Thermal range specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 7.4 Maximum input specifications. . . . . . . . . . . . . . . .
1 Disclaimers 1.1 Copyright 1.3 Documentation updates © 2013, FLIR Systems, Inc. All rights reserved worldwide. No parts of the software including source code may be reproduced, transmitted, transcribed or translated into any language or computer language in any form or by any means, electronic, magnetic, optical, manual or otherwise, without the prior written permission of FLIR Systems.
2 Safety information Note Before operating the device, you must read, understand, and follow all instructions, dangers, warnings, cautions, and notes. Note FLIR Systems reserves the right to discontinue models, parts or accessories, and other items, or to change specifications at any time without prior notice. Note Remove the batteries if the device is not used for an extended period of time. WARNING Do not operate the device if you do not have the correct knowledge.
2 Safety information WARNING Do not measure the current on a circuit when the voltage increases to more than 600 V. This can cause damage to the instrument and can cause injury to persons. WARNING You must disconnect the test leads from the circuit that you did a test on before you change the range. If you do not do this, damage to the instrument and injury to persons can occur. WARNING Do not look directly into the laser beam. The laser beam can cause eye irritation.
2 Safety information WARNING Be careful when you do the measurements if the voltages are more than 25 VAC rms or 35 VDC. There is a risk of shock from these voltages. Injury to persons can occur. WARNING Do not do diode, resistance or continuity tests before you have removed the power from the capacitors and from a device during a test. Injury to persons can occur. WARNING Do not use the device as a tool to identify live terminals. You must use the correct tools.
2 Safety information WARNING Do not cause a short-circuit of the batteries. This can cause damage to the instrument and can cause injury to persons. WARNING Do not put the batteries into a fire. Injury to persons can occur. CAUTION Do not use the device for a procedure that it is not made for. This can cause damage to the protection. This symbol, adjacent to another symbol or terminal, indicates that the user must refer to the manual for further information.
2 Safety information and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
3 Introduction Congratulations on your purchase of the FLIR CM78 True RMS Clamp/DMM with infrared thermometer and Bluetooth METERLiNK®. This meter is supplied in the METERLiNK® kit and includes a Bluetooth module designed for use with FLIR infrared cameras. The combination of a clamp meter and an infrared (IR) camera is used for electrical power measurement, analysis, and documentation.
4 Description 4.1 Meter parts Figure 4.1 Front view 1. 2. 3. 4. 5. 6. 7. Clamp jaw. Jaw opening trigger Function buttons, see section 4.3 Function buttons, page 10. Work light. Function switch, see section 4.2 Function switch, page 9. LCD display. Probe/thermocouple terminals. #T559826; r.
4 Description Figure 4.2 Rear view 1. 2. 3. IR sensor. Laser pointer diode. Battery compartment. 4.2 Function switch The meter can measure voltage or frequency through the probe inputs. The type of measurement is selected by the button. The meter can measure resistance, continuity, or diode polarity through the probe inputs. The type of measurement is selected by the button. The meter can measure capacitance through the probe inputs. #T559826; r.
4 Description The meter can measure DC current through the clamp jaws. The meter can measure AC current through the clamp jaws. The meter can measure temperature through the thermocouple inputs. The meter can measure IR temperature through the IR sensor. The meter is in full power-saving mode 4.3 Function buttons Press the button to change the operating mode for the currently selected measurement. • • Use the button to select Auto range or Manual range mode, see section 5.2 Auto/Manual range, page 13.
4 Description Press the button to toggle between Normal and Hold mode. In Hold mode, the display freezes the last reading and continues to display this value. Press the button to enable/disable METERLiNK® (Bluetooth) communication, see section . 4.4 Display icons and indicators Figure 4.3 Display Indicates that METERLiNK® (Bluetooth) communication is active, see section. Indicates that the IR sensor and the laser pointer diode are active. Indicates that the meter is in Auto range mode.
4 Description Indicates that the meter is in Hold mode. Indicates the battery voltage status. Indicates that the meter is measuring AC current or voltage. Indicates that the meter is measuring DC current or voltage. Indicates that the continuity function is active. Indicates that the diode test function is active. 4.4.1 Out-of-range warning If the input is out-of-range, OL is displayed on the main display. #T559826; r.
5 Operation Note Before operating the device, you must read, understand, and follow all instructions, dangers, warnings, cautions, and notes. Note When the meter is not in use, the function switch should be set to the position. Note When connecting the probe leads to the device under test, connect the negative lead before connecting the positive lead. When removing the probe leads, remove the positive lead before removing the negative lead. 5.1 Powering the meter 1.
5 Operation To enter Manual range mode, press the press the button. To change the range, button repeatedly until the desired range is displayed. To return to Auto range mode, press and hold the cator is displayed. button until the indi- 5.3 Current measurements When measuring current using the clamp jaws, only one conductor should be enclosed by the jaws—refer to Figure 5.1. Figure 5.1 Correct and incorrect set-up 1. 2. 3. 4. Ensure that the probe/thermocouple leads are disconnected from the meter.
5 Operation Note The meter can also be set to display peak values only, see section 5.13 Peak hold, page 20. 5.3.1 DC Zero The DC Zero feature removes offset values and improves the accuracy of DC current measurements. 1. 2. 3. Set the function switch to the position. Ensure that there is no conductor in the clamp jaws. Press the The 4. Use the button to enter the DC Zero mode and store the offset value. indicator is displayed.
5 Operation 5.5 Resistance measurements WARNING Do not do diode, resistance or continuity tests before you have removed the power from the capacitors and from a device during a test. Injury to persons can occur. 1. 2. 3. 4. Set the function switch to the position. Insert the black probe lead into the negative COM terminal and the red probe lead into the positive Ω terminal. Touch the tips of the probe across the circuit or component under test. Read the resistance value on the display. 5.
5 Operation Note For very large capacitance values, it may take several minutes for the measurement to settle and the final reading to stabilize. 5.7 Frequency measurements 1. 2. Set the function switch to the position. Insert the black probe lead into the negative COM terminal and the red probe lead into the positive V terminal. 3. Press and hold the button to select frequency measurement. The Hz unit indicator should be displayed. Touch the tips of the probe across the part under test.
5 Operation 2. Insert the black probe lead into the negative COM terminal and the red probe lead into the positive Ω terminal. 3. Use the button to select continuity measurement. The indicator should be displayed. Touch the tips of the probe across the circuit or component under test. If the resistance is less than 30 Ω, the meter beeps continuously. 4. 5. 5.
5 Operation the target, the diameter (spot) of the object under test must be at least 1 cm (0.4″). Refer to Figure 5.2. Figure 5.2 IR spot-to-distance ratio IR measurement notes: • • • • • • The object under test should be larger than the size of the laser beam spot. If the surface of the object under test is covered with frost, oil, grime, etc., clean the surface before measuring. If the surface of the object is highly reflective, apply masking tape or flat black paint to the surface before measuring.
5 Operation WARNING Do not use the laser pointer near explosive gases or in other possible explosive areas. Injury to persons can occur. 1. Set the function switch to the 2. Press and hold the diode. 3. position. button to enable the IR sensor and the laser pointer The indicator is displayed. Aim the laser pointer at the surface to be measured. Read the IR temperature value on the display. Note To change the temperature unit, see section 5.14 Temperature units, page 21. 5.
5 Operation registered. The Peak hold function is available when measuring AC/DC current or voltage. 1. 2. With the meter set to AC/DC current or voltage measurement (see section 5.3 Current measurements, page 14 or 5.4 Voltage measurements, page 15) press the button to enter Peak mode. Press the button toggle between Pmax and Pmin modes. • In Pmax mode, the indicator is displayed. • In Pmin mode, the indicator is displayed. 3. Read the positive/negative peak value on the display. 4.
5 Operation 5.15.2 Procedure 1. 2. 3. 4. 5. Pair the IR camera with the instrument. Refer to the camera manual for information on how to pair Bluetooth devices. Turn on the camera. Turn on the meter. Press the on the meter to enable Bluetooth. Choose the variable that you want to use (voltage, current, resistance, etc.). Results from the meter will now automatically be displayed in the result table in the top left corner of the IR camera screen.
6 Maintenance 6.1 Cleaning and storage Clean the meter with a damp cloth and mild detergent; do not use abrasives or solvents. If the meter is not to be used for an extended period, remove the batteries and store them separately. 6.2 Battery replacement 1. 2. 3. 4. To avoid electrical shock, disconnect the meter if connected to a circuit, remove the probe/thermocouple leads from the terminals, and set the function switch to the position before attempting to replace the batteries.
7 Technical specifications 7.1 General specifications Display Controls 4000-count with bar • • • 8-position rotary switch Dedicated IR button 8 dedicated function buttons: flashlight, IR, maximum/minimum, Bluetooth, hold, range, mode, peak Backlight White LED Work light White LED array Measurement ranges See section 7.2 Electrical range specifications, page 25.
7 Technical specifications Other indications Low battery, over-range, IR, memory Operating temperature –10 to 50℃ (14 to 122℉) Storage temperature –25 to 60℃ (–14 to 140℉) Operating humidity Maximum 90% up to 35℃ (95℉) decreasing linearly to 60% at 45℃ (113℉) Storage humidity 90% maximum Dimensions 257 mm × 110 mm × 50 mm (10.1″ × 4.3″ × 2.0″) Weight 0.63 kg (1.4 lb.) Bluetooth range 10m (32ft) maximum Safety Category Rating CAT IV-600V, CAT III-1000V 7.
7 Technical specifications Function Range Resolution Accuracy (of reading) AC voltage 400.0 mV 0.1 mV ±(1.5% + 10 digits) 4.000 V 0.001 V 40.00 V 0.01 V ±(1.5% + 5 digits) 400.0 V 0.1 V 1000 V 1V ±(2.0% + 5 digits) Note All AC voltage ranges are specified from 5% of the range to 100% of the range. DC voltage Resistance 400.0 mV 0.1 mV ±(1.5%+10 digits) 4.000 V 0.001 V 40.00 V 0.01 V ±(1.5% + 2 digits) 400.0 V 0.1 V 1000 V 1V ±(2.0% + 2 digits) 400.0 Ω 0.1 Ω ±(1.
7 Technical specifications Function Range Resolution Accuracy (of reading) Capacitance 4.000 nF 0.001 nF ±(5.0% + 30 digits) 40.00 nF 0.01 nF ±(5.0% + 20 digits) 400.0 nF 0.1 nF 4.000 μF 0.001 μF ±(3.0% + 5 digits) 40.00 μF 0.01 μF 400.0 μF 0.1 μF ±(4.0% + 10 digits) 4.000 mF 0.001 mF ±(10% + 10 digits) 40.00 mF 0.01 mF Unspecified 4.000 kHz 0.001 kHz ±(1.5% + 2 digits) Frequency Sensitivity: 100 V (<50 Hz); 50 V (50–400 Hz); 5 V (401– 4000 Hz) #T559826; r.
7 Technical specifications 7.3 Thermal range specifications Function Thermocouple range IR temperature (8:1 ratio) Type K inputs (excluding probe) IR range Accuracy (of reading) –29 to –20℃ (– 20 to –4℉) ±5℃ (±9℉) –20 to 270℃ (–4 to 518℉) ±2.0% reading or ±2℃ (±4℉) (whichever is greater) –20 to 760℃ (–4 to 1400℉) ±(3% rdg + 5℃) (±(3% rdg + 9℉) 7.
8 Technical support Website http://www.flir.com/test Technical support T&MSupport@flir.com Repairs Repair@flir.com #T559826; r.
9 Warranties 9.1 FLIR Global Limited Lifetime Warranty A qualifying FLIR Test and Measurement product (the “Product”) purchased either directly from FLIR Commercial Systems Inc and affiliates (FLIR) or from an authorized FLIR distributor or reseller that Purchaser registers on-line with FLIR is eligible for coverage under FLIR’s Limited Lifetime Warranty, subject to the terms and conditions in this document.
9 Warranties FLIR reserves the right to determine, in its sole discretion, whether a returned Product is covered under Warranty. If FLIR determines that any returned Product is not covered under Warranty or is otherwise excluded from Warranty coverage, FLIR may charge Purchaser a reasonable handling fee and return the Product to Purchaser, at Purchaser’s expense, or offer Purchaser the option of handling the Product as a non-warranty return. 7. NON-WARRANTY RETURN.
9 Warranties MAINTENANCE, NEGLECT, ABUSE, IMPROPER STORAGE, FAILURE TO FOLLOW ANY PRODUCT INSTRUCTIONS, DAMAGE (WHETHER CAUSED BY ACCIDENT OR OTHERWISE), OR ANY OTHER IMPROPER CARE OR HANDING OF THE PRODUCTS CAUSED BY ANYONE OTHER THAN FLIR OR FLIR’S EXPRESSLY AUTHORIZED DESIGNEE. THIS DOCUMENT CONTAINS THE ENTIRE WARRANTY AGREEMENT BETWEEN PURCHASER AND FLIR AND SUPERSEDES ALL PRIOR WARRANTY NEGOTIATIONS, AGREEMENTS, PROMISES AND UNDERSTANDINGS BETWEEN PURCHASER AND FLIR.
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