UEI CLM100 Cable Length Meter Instruction Manual

: June 1, 2024
: UEi

Table of Contents

UEI CLM100 Cable Length Meter
Product Information
Product Usage Instructions
FAQ
INTRODUCTION
- Features include
SAFETY TIPS
INTERNATIONAL SYMBOLS
INSTRUCTIONS
SPECIFICATIONS
OPERATIONAL HINTS
WARRANTY
DISPOSAL
CLEANING
STORAGE
References
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Download This Manual (PDF format)

UEI CLM100 Cable Length Meter

Product Information

Specifications

Product Name: CLM100 Cable Length Meter
Ideal for measuring cable length on spools or in conduits
Includes test leads, copper calibration bar, abrasive pad, and carrying case

Product Usage Instructions

Calibration Procedures

Turn on the CLM100 by pressing the green on/off button.
Insert black test leads into one pair of input jacks and red test leads into the other pair of input jacks.
Connect Kelvin clips to the calibration standard ensuring they are close together.
Press and hold the CAL button until all segments in the display illuminate to complete calibration.
Disconnect the leads from the standard.

Measuring Length of Wire

Turn on the CLM100 and perform the calibration procedure as mentioned above.
Allow the CLM100 to reach the same temperature as the wire under test.
Strip insulation at both ends of the wire to be tested.

NOTE:
Ensure both ends of the wire are clean with the conductor fully exposed for accurate readings. Use the abrasive pad to clean the wire ends.

FAQ

Q: How do I ensure accurate measurements with the CLM100?

A: Follow the calibration procedures outlined in the manual and make sure the wire under test is clean and properly exposed at both ends.

Q: What should I do if I encounter a low battery indication?

A: Replace the batteries following the instructions provided in the manual to ensure continued optimal performance of the CLM100.

Q: Can I measure resistance with the CLM100?

A: Yes, you can measure resistance using the appropriate settings on the meter. Refer to the instructions for details on measuring resistance.

INTRODUCTION

The CLM100 Cable Length Meter is ideal for measuring cable length on the spool or in existing conduits. Includes test leads, copper calibration bar, an abrasive pad for removing oxidation, and a carrying case.

Features include

3 digit display with enunciators
Measures in FEET (ft) or METERS (m)
Measures COPPER (CU) or ALUMINUM (AL) wire
Resistance range for milliohm measurements
Automatic temperature compensation
User calibration mode. Calibration standard included
Auto power off

WARNING!
Make sure the wire under test is not energized. Never apply voltage to inputs.

NOTE:
Temperature affects the accuracy of readings. Please see the accuracy specifications. For best results, allow the CLM100 to attain the same ambient temperature as the wire under test. The length of time this will take depends on the ambient temperature. Typically it will take 10 to 15 minutes for the CLM100 to attain equal ambient temperature.

SAFETY TIPS

Before using this meter, read all safety information carefully. In this manual, the word “WARNING” is used to indicate conditions or actions that may pose physical hazards to the user. The word “CAUTION” is used to indicate conditions or actions that may damage this instrument.

INTERNATIONAL SYMBOLS

$UEI-CLM100-Cable-Length-Meter-Fig- $1$$

INSTRUCTIONS

Calibration Procedures

Turn the CLM100 on by depressing the green on/off button
Insert the black test leads into one pair of input jacks and the red test leads into the other pair of input jacks. (Ignore the gray marking on the banana plug.) This is very important to ensure that the meter works correctly. If black and red test leads are mixed the unit will give a false reading. (Fig 1)
Connect the Kelvin clips to the calibration standard. Make sure the clips are as close together as possible. (Fig 2)
NOTE: Make sure the calibration standard is clean. The Kelvin clips must be connected across the diameter of the standard. Use the abrasive pad to clean the calibration standard. NOTE: Make sure clips are as close together as possible. Use the tips of the Kelvin clips when performing measurements on small-diameter wire.
Press and hold the “CAL” button until all segments in the display illuminate. This completes the calibration procedure and will ensure all measurements are as accurate as possible.
Disconnect the leads from the standard.

Measuring Length of Wire

Turn the CLM100 on and perform the calibration procedure.
Allow the CLM100 to attain the same temperature as the wire under test.
NOTE: Temperature affects the accuracy of readings. Please see the accuracy specifications. For best results, allow the CLM100 to attain the same ambient temperature as the wire under test.
WARNING!
Make sure the wire under test is not energized. Never apply voltage to inputs.
Strip the insulation back on each end of the wire being tested.
NOTE: Make sure both ends of the wire under test are clean and the conductor is fully exposed. The insulation must be stripped away so the Kelvin clips can be connected across the diameter of the wire. Use the abrasive pad to clean the wire ends.
Using the selector on the CLM100, turn to the size of the wire under test.
Press the “COPPER” button if copper wire is being tested. The “CU” enunciator will illuminate in the top left corner of the display.
Press the “ALUM” button if the aluminum wire is being tested. The “AL” enunciator will illuminate in the top left corner of the display.
Press the “FT” button if you require readings to be in feet. The “ft” enunciator will illuminate the display.
Press the “M” button if you require readings to be in meters. The “m” enunciator will illuminate the display.
Connect a Kelvin clip to one end of the wire and the other Kelvin clip to the other end of the wire.
Read the length of the wire directly from the display. Please note the “k” enunciator illuminates if measurements are at or above 1000 feet/meters.
Disconnect the test leads from the unit when not in use.

Low Battery Indication
The “BAT” enunciator will illuminate on the lower left side of the display to indicate battery voltage is low. The battery should be changed immediately to ensure proper function and accuracy. Only alkaline 9 Volt batteries should be used.

Measuring Resistance

If the resistance to be measured is wire, follow steps 1 through 3 under “Measuring Length of Wire.” Then follow steps 2 and 3 below. If a discrete resistor is being measured, turn the cable length meter on and perform the calibration procedure.
Using the selector on the CLM100, turn to “R” on the dial.
Read the resistance of the wire directly from the display.

SPECIFICATIONS

Measurement Range:| 15 to 30,000 feet 26ga to 4/0ga

250MCM to 500MCM

---|---
Accuracy:| Ambient Temperature: 65˚ to 75˚F

< 30ft: ±6 LSD

30ft: ±(2% of reading + 3 LSD)

Ambient Temperature: <65˚ and >75˚F

< 30ft: ±6 LSD

30ft: ±(3% of reading + 3 LSD) LSD = least significant digit

Extended measurement times can lower battery life to no less than 6 hours.

WARNING: This meter is NOT designed to measure less than 15 feet of cable.

OPERATIONAL HINTS

Never apply voltage to the inputs.
Temperature affects readings. Allow the CLM100 to attain the ambient temperature of the wire under test.
Use a 9 Volt alkaline battery only
Use the test leads that came with the unit only. Other leads will not work.
Ensure that the test leads are clean and in good working order.
Use an abrasive pad similar to the one provided to ensure the wire under test is clean and free of oxidation
Ensure that insulation is stripped adequately from both ends of the wire under test. This will enable measurements to be accurate.
Ensure that the alligator clips are connected across the diameter of the wire under test.
When measuring wire for insertion into the conduit, add extra wire to compensate for the accuracy of the meter. For example, 205 feet of wire is needed to run inside a piece of conduit that is 200 feet long. (This would allow 2.5 feet on each end to attach the wire.) At 205 feet and 70˚F, the cable length meter has an accuracy of ±7 feet. In this case, it would be safer to measure out 212 feet of wire. This would ensure that enough wire is available for the application.

WARRANTY

The CLM100 is warranted to be free from defects in materials and workmanship for five years from the date of purchase. If within the warranty period, your instrument should become inoperative from such defects, the unit will be repaired or replaced at UEi’s option. This warranty covers normal use and does not cover damage that occurs in shipment or failure that results from alteration, tampering, accident, misuse, abuse, neglect, or improper maintenance. Batteries and consequential damage resulting from failed batteries are not covered by warranty.

Any implied warranties, including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited to the express warranty. UEi shall not be liable for loss of use of the instrument or other incidental or consequential damages, expenses, or economic loss, or for any claim or claims for such damage, expenses, or economic loss. A purchase receipt or other proof of the original purchase date will be required before warranty repairs will be rendered. Instruments out of warranty will be repaired (when repairable) for a service charge. Return the unit postage paid and insured to:

This warranty gives you specific legal rights. You may also have other rights which vary from state to state.

DISPOSAL

CAUTION:
This symbol indicates that equipment and its accessories shall be subject to separate collection and correct disposal.

CLEANING

Periodically clean your meter’s case using a damp cloth. DO NOT use abrasive, flammable liquids, cleaning solvents, or strong detergents as they may damage the finish, impair safety, or affect the reliability of the structural components.

STORAGE

Remove the batteries when the instrument is not in use for a prolonged period. Do not be exposed to high temperatures or humidity. After a period of storage in extreme conditions exceeding the limits mentioned in the General Specifications section, allow the instrument to return to normal operating conditions before using it.