USER MANUAL FLIR CM174 IMAGING CLAMP METER with IGMTM TRUE RMS 600A AC/DC CLAMP METER
Table of Contents 1. DISCLAIMERS 4 1.1 Copyright 4 1.2 Quality Assurance 4 1.3 Documentation 4 1.4 Disposal of Electronic Waste 4 2. SAFETY 5 3. INTRODUCTION 7 3.1 Key Features 4. 5. 7 METER DESCRIPTION 8 4.1 Meter Parts 8 4.2 Function Switch 9 4.3 Function Buttons 9 4.4 Display Icons and Indicators 10 4.5 Thermal Image Display 12 4.6 Clamp Meter Display 12 OPERATION 13 5.1 Powering the Meter 13 5.1.1 Auto Power Off 13 5.2 Auto/Manual Range Mode 13 5.
6. 7. 5.4.4.5 VFD Mode (low pass filter) 17 5.4.4.6 Flex Clamp Adaptor Use 18 5.5 Resistance Measurements 19 5.6 Continuity Test 19 5.7 Capacitance Measurements 20 5.8 Diode Test (CLASSIC mode) 21 5.9 Diode Test (SMART mode) 22 5.10 IGM Thermal Imager 23 5.10.1 Thermal Imager Basics 23 5.10.2 Programming Menu 25 5.10.3 Infrared Energy and Imaging Theory 28 5.10.4 Emissivity Factors for Common Materials 29 5.10.5 Non‐Uniformity Correction 29 MAINTENANCE 30 6.
1. Disclaimers 1.1 Copyright © 2015‐2016, 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 Safety Notes Before operating the device, you must read, understand, and follow all instructions, dangers, warnings, cautions, and notes. FLIR Systems reserves the right to discontinue models, parts or accessories, and other items, or to change specifications at any time without prior notice. Remove the batteries if the device is not used for an extended period of time. Warning Statements Do not operate the device if you do not have the correct knowledge.
Cautions Do not use the device for a procedure that it is not intended 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. This symbol, adjacent to a terminal, indicates that, under normal use, hazardous voltages may be present. Double insulation. UL listing is not an indication or a verification of the accuracy of the meter IEC 60825‐1 Ed.
3. Introduction Thank you for selecting the FLIR CM174 Clamp Meter. The CM174 is a True RMS 600A AC/DC clamp meter with radiometric Lepton Thermal Imaging system, integrated VFD Mode, Inrush Current capture and a Lo Z mode for eliminating ‘ghost’ voltages. This device is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. 3.
4. Meter Description Fig 4‐1 Front View 4.1 Meter Parts 1. Jaw opening trigger 2. MODE/Hz/up arrow button 3. VFD/Work light/down arrow button 4. Function switch 5. COM (negative ‐) Probe Input jack 6. Positive (+) Probe Input jack 7. IGM Thermal Image mode button 8. DCA Zero/Inrush/OK button 9. MIN/MAX HOLD button 10. AUTO/RANGE Button 11. Color TFT Display 12. Clamp jaw 12 1 11 10 2 9 8 3 7 4 1 7 5 6 2 3 4 5 FLIR CM174 USER MANUAL 6 1. Work light 2.
4.2 Function Switch Select this position when connecting a FLIR Flex Clamp Adaptor. Select this position to measure in the low impedance mode. Select this position to switch the meter OFF (full power saving mode). Select this position to measure AC/DC Voltage through the probe inputs. The meter can measure resistance and continuity through the probe inputs. The type of measurement is selected by the MODE button. The meter can measure capacitance and diode through the probe inputs.
4.4 Display Icons and Indicators Indicates that the meter is displaying maximum reading values. Indicates that the meter is displaying minimum reading values. Indicates that the meter is in Auto range mode. Indicates that the meter is in Hold mode. Indicates the battery voltage status. Indicates that the auto power off function is enabled. Indicates that the measured voltage is greater than 30 V DC or AC RMS. Indicates that the meter is measuring AC current or voltage.
DC Zero mode icon. Inrush current mode icon. FLEX Clamp Adaptor (FLIR TA72_TA74) icon. 100mV/Ampere Clamp Adaptor icon. Lo Z mode icon.
4.5 Thermal Image Display 1 10 9 2 Press the IGM button to open the Thermal Imager. Refer to Section 5.9 for detailed instructions on the IR Thermal Imager functions. Note the clamp meter display information in the thermal image example screen Fig. 4‐3. 8 3 7 4 6 1. Temperature Measurement* 5 2. Thermal Image 3. Auto Range icon Fig 4‐3 Thermal Image 4. High Voltage alert 5. Voltage reading 6. Battery status 7. Auto Power OFF active 8. Cross hairs 9. Palette scale 10.
5. Operation Note: Before operating the device, please 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 OFF 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.
5.4 Voltage and Current Measurements Note: If the measured voltage is greater than 30 V DC or AC RMS, the indicator is displayed. 5.4.1 Basic Voltage Measurements 1. 2. 3. 4. 5. 6. Set the function switch to the V position. To manually select AC or DC, press the MODE button. To manually select the measurement range (scale), press the RANGE button repeatedly. Refer to section 5.2 Auto/Manual range mode.
5.4.3 Basic Current Measurements WARNING Do not measure the current on a circuit when the voltage increases to more than 1000V. This can cause damage to the instrument and can cause injury to persons. When measuring current using the clamp jaws, only one conductor should be enclosed by the jaws—refer to Figure 5.2. Figure 5.2 Correct and incorrect setup 1. 2. 3. 4. 5. 6. Ensure that the probe leads are disconnected from the meter. Set the function switch to the A position.
5.4.4 Extended Functionality Modes In addition to the basic measurements that the CM174 can perform, a variety of extended functions are included. Refer to the following sections for details. 5.4.4.1 Inrush Current Mode In Inrush current mode, the meter displays the AC RMS current reading in the first 100ms period after the trigger point (current detection threshold) is reached, see Fig. 5.3 below. The current detection threshold is 0.5A for the 60.00A range and 5.0A for the 600.0A range.
5.4.4.3 Frequency Mode In Frequency mode, the meter measures and displays the frequency. Frequency mode is available when measuring AC current or voltage. Important note: Do not switch to the Frequency mode until the meter is setup and actively measuring the voltage or current signal. Press and hold the MODE button to select and enable Frequency mode. 5.4.4.
5.4.4.6 Flex Clamp Adaptor Use FLIR Clamp Adaptors (Models TA72 and TA74) can be connected to the CM174 to display current measurements made by the Flex Clamp Adaptor. 1. Turn the function dial to the 2. Connect the Flex Clamp as shown. position. 3. Set the range of the Flex Clamp adaptor to match the range of the CM174. For convenience, the CM174 will display the range setting (100mv/A). 4. Operate the Flex Clamp per instructions provided with the Flex Clamp meter. 5.
5.5 Resistance Measurements Warning: Do not perform resistance tests before removing the power from resistors and other devices under test during a measurement. Injury to persons can occur. 1. 2. 3. 4. 5. Set the function switch to the position. Use the MODE button to select the resistance mode (continuity symbol should be OFF). Insert the black probe lead into the negative COM terminal and the red probe lead into the positive Ω terminal.
5.7 Capacitance Measurements Warning: Do not perform capacitance tests before removing the power to the capacitor or to other devices under test during a measurement. Injury to persons can occur. 1. 2. 3. 4. 5. Set the function switch to the position. Use the MODE button to select capacitance function (capacitor symbol must be displayed). Insert the black probe lead into the negative COM terminal and the red probe lead into the positive terminal. Touch the tips of the probe across the part under test.
5.8 Diode Test (CLASSIC mode) Warning: Do not perform diode tests before removing the power to the diode or other devices under test during a measurement. Injury to persons can occur. 1. If not already selected, choose CLASSIC Diode test mode in the Programming Menu (See Section 5.10.2). 2. Set the function switch to the diode 3. Insert the black probe lead into the negative COM terminal and the red probe lead into the positive Ω terminal. 4. Use the MODE button to select the diode test function.
5.9 Diode Test (SMART mode) Warning: Do not perform diode tests before removing the power from capacitors and other devices under test during a measurement. Injury to persons can occur. 1. If not already selected, choose SMART Diode test mode in the Programming Menu (See Section 5.10.2). 2. Set the function switch to the diode 3. Insert the black probe lead into the negative COM terminal and the red probe lead into the positive Ω terminal. 4. Use the MODE button to select the diode test function.
5.10 IGM Thermal Imager Warning: Do not point the laser toward the eyes, as prolonged exposure may cause injury. 5.10.1 Thermal Imager Basics In the Thermal Imaging mode the user can measure a targeted surface’s temperature. This is accomplished by detecting the energy emitted by the surface under test. A thermal image of the area under test is viewed in the same manner as with dedicated thermal imaging devices, where color variations reflect temperature variations. See Section 5.10.
To customize the Thermal Imager use the programming menu as described in Section 5.10.2. For basic operation follow these steps: 1. Set the function switch to any position. 2. Press the IGM button for < 1 second to switch the IGM Thermal Imager ON. Point the thermal imaging lens (located on the rear of the meter) toward an area to measure. 1.3” 3.
5.10.2 Programming Menu 1. To access the programming menu, set the function switch to any position to switch the meter on, and then press and hold the IGM button for > 3 seconds. The menu should now show a display, similar to the one in Fig. 5‐11. .95 Figure 5.11 Programming menu example 2. The menu icons are located on the left side of the display and their settings are shown on the right side. Use the up and down arrow buttons to scroll the parameter list. 3.
Color Palette 1. Press and hold the IGM button to access the Programming menu. 2. Scroll to the color palette icon using the arrow buttons 3. Use the OK button to step through the three color scheme options (rainbow, iron, and gray scale). 4. When the desired selection is made, use the arrow keys to continue scrolling the programming menu or press the return button to exit the programming menu. Emissivity 1. Press and hold the IGM button to access the Programming menu. 2.
Cross hairs 1. Press and hold the IGM button to access the Programming menu. 2. Scroll to the Cross hairs icon using the arrow buttons. 3. Use the OK button to toggle the Cross hairs ON and OFF. 4. When done, use the arrow buttons to continuing scrolling the Programming menu or use the Return button to exit the programming menu. Diode mode 1. Press and hold the IGM button to access the Programming menu. 2. Scroll to the Diode symbol using the arrow buttons. 3.
5.10.3 Infrared Energy and Imaging Theory A thermal imager generates an image based on temperature differences. In a thermal image the hottest item in the scene appears as white and the coldest item as black, and all other items are represented as a gray scale value between white and black. It may take some time to get used to the thermal imagery. Having a basic understanding of the differences between thermal and daylight cameras can help with getting the best performance from the CM174.
5.10.4 Emissivity Factors for Common Materials Material Emissivity Material Emissivity Asphalt 0.90 to 0.98 Cloth (black) 0.98 Concrete 0.94 Skin (human) 0.98 Cement 0.96 Leather 0.75 to 0.80 Sand 0.90 Charcoal (powder) 0.96 Soil 0.92 to 0.96 Lacquer 0.80 to 0.95 Water 0.92 to 0.96 Lacquer (matt) 0.97 Ice 0.96 to 0.98 Rubber (black) 0.94 Snow 0.83 Plastic 0.85 to 0.95 Glass 0.90 to 0.95 Timber 0.90 Ceramic 0.90 to 0.94 Paper 0.70 to 0.94 Marble 0.
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 leads from the terminals, and set the function switch to the OFF position before attempting to replace the batteries.
7. Specifications 7.1 General specifications Display counts: Measuring rate: Over‐range indication: Auto power off: Low battery indicator: 0~6000 3 times per second OL or –OL. Programmable: OFF, 1, 2, 5, or 10 minutes and ‘LO BATT’ is displayed. Power requirement: Battery life: 4 × 1.5 V AAA alkaline batteries. Clamp mode Approx. 10 hours; IGMTM Mode 3 hours (with alkaline batteries and work light off) 1‐year calibration cycle.
7.2 IR Thermal Imaging Specifications Detector type FLIR LeptonTM; Micro‐bolometer Focal Plane Array (FPA) Thermal Sensitivity 150mK IR Imaging resolution 60 x 80 pixels IR Imaging field of view 50.0 o x 38.
7.3 Electrical specifications Accuracy is ± (% reading + number of digits (dgt)) at 73.4 °F ±9 °F (23°C ±5 °C), <80% RH. Table 7.1 Voltage (TRMS) Function Range Accuracy (of reading) 60.00V DCV 600.0V ± (1.0% + 5 dgt) 1000 V 60.00 V ACV ±(1.0% + 5 dgt) 45~400 Hz 600.0 V 1000 V 60.00 V ACV VFD ± (1% + 5 dgt) 45~65 Hz ± (5% + 5 dgt) 65~400 Hz 600.
Table 7.2 Current (TRMS) Function Range Accuracy 60.00 A DCA ±(2% + 5 dgt) 600.0 A 60.00 A ± (2% + 5dgt) 45 ~ 400Hz ACA 600.0 A 60.00 A ± (2% + 5 dgt) 45~65Hz ± (6% + 5 dgt) 65~400Hz ACA VFD 600.0 A Notes: Overload protection: 600A (rms) Position Error: ±1% of reading. AC Conversion Type and additional accuracy is same as AC Voltage. DCA affected by the temperature and residual magnetism; use DCA Zero function to compensate.
Table 7.4 Inrush current Function Range Accuracy 60.00 A ±(3% + 0.3 A) 600.0 A ±(3% + 5 dgt) ACA Inrush Inrush current detection threshold: 0.5A for 60A range and 5.0A for 600.0A range Overload protection: 1000 V (rms), 600 A (rms). Integration time is 100 ms. Table 7.5 Resistance and continuity and diode Function Range Accuracy 600.0 Ω Resistance ±(1.0% + 5 dgt) 6.000 KΩ Continuity 600.0 Ω ±(1.0% + 5 dgt) Diode 1.5V ±(1.5% + 5 dgt) Overload protection: 1000 V (rms).
Table 7.6 Flex Clamp Adaptor Function Function Range Accuracy 30.00 A Flex (ACA) 300.0 A ±(1% + 5 dgt) 45 ~ 400Hz 3000 A LCD displays ‘0’ counts when the reading is < 10 counts Additional accuracy for the Flex function is listed in the FLIR clamp adaptor User Manuals (Models TA72_TA74). Table 7.7 Flex Clamp Adaptor Function (Frequency) Function Range Accuracy 600.0 Hz Frequency (Flex) 6.000 kHz ±(0.1% + 2 dgt) 10.00 kHz Sensitivity: >4A (rms) for ACA 10Hz ~ 10kHz.
8. Technical Support Main Website http://www.flir.com/test Technical Support Website http://support.flir.com Technical support Email TMSupport@flir.com Service/Repair Support Email Repair@flir.com Support Telephone number +1 855‐499‐3662 option 3 (toll‐free) 9. Warranty 9.1 FLIR Test & Measurement Imaging Product 10 year/10 year Limited Warranty Congratulations! You (the “Purchaser”) are now the owner of a world‐class FLIR Imaging Test and Measurement product.
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (EVEN IF PURCHASER HAS NOTIFIED FLIR OF ITS INTENDED USE FOR THE PRODUCTS), AND NON‐INFRINGEMENT ARE EXPRESSLY EXCLUDED FROM THIS AGREEMENT. THIS WARRANTY EXPRESSLY EXCLUDES ROUTINE PRODUCT MAINTENANCE, AND SOFTWARE UPDATES.
Corporate Headquarters FLIR Systems, Inc. 2770 SW Parkway Avenue Wilsonville, OR 97070 USA Telephone: +1 503‐498‐3547 Customer Support Technical Support Website Technical Support Email Service and Repair Email Customer Support Telephone http://support.flir.com TMSupport@flir.com Repair@flir.com +1 855‐499‐3662 option 3 (toll free) Publication Identification No.
