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Summary of Contents for Extech Instruments CT40
- Page 1 USER GUIDE Cable Tester and Digital Multimeter Model CT40...
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Page 2: International Safety Symbols
Introduction Congratulations on your purchase of the Extech CT40. The CT40 is a cable tester which uses a transmitter/receiver to allow for wire identification of an individual core to the end of a multi-core cable .The meter’s digital multimeter functions provides for easy measurement of AC/DC Voltage, AC/DC Current, Resistance, Continuity and Diode check. -
Page 3: Meter Description
17. Transmitter Alligator Test Leads – CH1-16 LCD display descriptions LO BAT Cable ID Number Display Low bat LED OP operation LED Autorange Indicator Diode Test Continuity Display Hold Low Battery Indicator 10. Units 11. DMM Digit Display 12. AC/DC Indicators CT40- EU-EN V1.7 1/13... -
Page 4: Operation
Connect both of the receiver’s alligator clips to each end of the cable under test. If the display indicates “UU” then voltage is present on the cable. Locate and remove the voltage source before proceeding with cable testing. CT40- EU-EN V1.7 1/13... -
Page 5: Ac/Dc Current Measurements
Read the resistance in the display WARNING: To avoid electric shock, disconnect power to the unit under test and discharge all capacitors before taking any resistance measurements. CT40- EU-EN V1.7 1/13... -
Page 6: Continuity Check
Press the Data Hold Button. The HOLD indicator will appear. The hold function freezes the reading in the display. Press the Data Hold Button again to return to normal operation. Auto Power OFF Function The auto off feature will turn the meter off after 15 minutes. CT40- EU-EN V1.7 1/13... -
Page 7: Maintenance
Never dispose of batteries in a fire. Batteries may explode or leak. Never mix battery types. Always install new batteries of the same type. WARNING: To avoid electric shock, do not operate the meter until the battery cover is in place and fastened securely. CT40- EU-EN V1.7 1/13... -
Page 8: Transmitter Specifications
9V battery Power current 23mA Operating temperature 0°C to 40°C (32°F to 104°F) Storage temperature –10°C to 50°C (14°F to 122°F) Continuity test Audible threshold between 15Ω and 1000Ω Cable voltage check 5V to 16V DC CT40- EU-EN V1.7 1/13... -
Page 9: Multimeter Specifications
2.000k, 20.00k, 200.0k (2.0% rdg + 5d) 2.000M (5.0% rdg + 8d) 20.00M Copyright © 2013 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form ISO-9001 Certified www.extech.com CT40- EU-EN V1.7 1/13...
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