Key facts
- Brand
- EXTECH
- Model
- CT40
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2023-10-18
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Extech CT40 Cable Tester and Digital Multimeter User Manual
The Extech CT40 is a combined cable tester and digital multimeter designed for wire identification and electrical measurements. It consists of a transmitter unit with 16 alligator clips for identifying individual cores in a multi-core cable and a receiver unit with a digital multimeter function. The device allows users to identify wires by connecting the transmitter to the cable cores and the receiver to the common ground, displaying the wire number on the receiver's LCD. It also features a digital multimeter capable of measuring AC/DC voltage, current, resistance, continuity, and diode checks.
Read onlineExtech CT40 specifications
| Max input voltage | 600V AC/DC |
|---|---|
| Display | 2000 count 3 -1/2 digit LCD |
| Auto Power Off | 15 minutes |
| Batteries | 9V battery and two AAA batteries |
| Operating Temperature | 0°C to 40°C |
| Weight | 10.8 oz (308g) |
Source: Extech CT40 Cable Tester and Digital Multimeter User Manual
All Extech CT40 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the continuity threshold for the CT40?
The audible signal sounds if the resistance is less than the continuity threshold, typically between 15 and 200 Ohms.
From: Extech CT40 Cable Tester and Digital Multimeter User Manual
How long does the auto power off feature last?
The auto off feature will turn the meter off after approximately 15 minutes.
From: Extech CT40 Cable Tester and Digital Multimeter User Manual
How long does the auto power off feature last?
The auto off feature will turn the meter off after 15 minutes.
From: Extech CT40 Cable Tester and Digital Multimeter User Guide
What batteries are required for the device?
The device requires a 9V battery for the cable test receiver and two AAA batteries for the digital multimeter.
From: Extech CT40 Cable Tester and Digital Multimeter User Guide