VEI CLM100B Manuale utente

1-800-547-5740 • Fax: (503) 643-6322

www.ueitest.com • email: [email protected]

CLM100B

INSTRUCTION MANUAL

Introduction

The CLM100B digital Cable Length Meter is an excellent tool to measure

spooled cable/wire. This best seller is built solid and supplied with a

Ruggedized boot for reliable field performance. Currently being utilized

by major utility companies, electrical contractors, wholesalers, and

installers where quick and accurate inventory management or measure-

ments are needed for job accountability. Simply attach the Kelvin Clips

to both ends of the cable and adjust the indicator to the size wire being

measured. A temperature compensation circuit ensures accuracy by

compensating for the temperature of the wire.

Features include

• Increased resolution to 0.000

• Improved accuracy to ±1% of reading for lengths greater than

300 ft (100m)

• Measures copper and aluminum cables; covers the major

wire gauges

• 6 User programmable wire gauge settings

• 25 Pre-set wire gauge settings

• Automatic temperature compensation

• Reads in feet and meters

• Milliohm measurement capability

• Wire size: 26 ga – 4/0 ga

• 250 MCM – 5000 MCM

• Resistance 65

• Auto off

• Two easy-to-attach Kelvin Clip leads connect to cable

WARNING!

Make sure wire under test is not energized. Never apply voltage

to inputs.

NOTE: Temperature affects accuracy of readings. Please see accuracy

specifications. For best results, allow the CLM100B 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 CLM100B 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.

Operating Instructions

Calibration Procedures

1. Turn the rotary selector from off to any position to turn the

meter on.

2. Set the rotary selector to “R”on the dial.

3. 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)

4. 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.

5. 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.

6. Disconnect the leads from the standard.

Measuring Length of Wire

1. Turn the CLM100B on and perform the calibration procedure in

the “R” position.

2. Allow the CLM100B to attain the same temperature as the

wire under test.

NOTE: Temperature affects accuracy of readings. Please see

accuracy specifications. For best results, allow the CLM100 to

attain the same ambient temperature as the wire under test.

CLM100B-MAN P. 1

(Fig 2)

(Fig 1)

WARNING!

Make sure wire under test is not energized. Never apply voltage

to inputs.

3. 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.

4. Using the selector on the CLM100B, turn to the size of wire

under test.

5. Press the ”COPPER” button if copper wire is being tested.

The ”CU” enunciator will illuminate in the top left corner of

the display.

6. Press the ”ALUM” button if aluminum wire is being tested.

The ”Al” enunciator will illuminate in the top left corner of

the display.

7. Press the ”FT” button if you require readings to be in feet.

The ”ft” enunciator will illuminate in the display.

8. Press the ”M” button if you require readings to be in meters.

The ”m” enunciator will illuminate in the display.

9. Connect a Kelvin clip to one end of the wire and the other

Kelvin clip to the other end of the wire.

10. Read the length of wire directly from the display. Please note

the ”k” enunciator illuminates if measurements are at or above

1000 feet/meters. For example, when the “k” enunciator is on

and you are measuring in feet, a reading of 15k ft would indicate

a length of 15000 ft.

11. Disconnect the test leads from the unit when not in use.

User Select Mode

This mode allows you to save the resistance of a user wire (see NOTE

below) for additional measurements of unknown lengths of the same

gauge wire. in addition, it enables you to accurately measure the length

of standard gauge wires. In this mode, you can measure the length of

any metal wire, the resistance of which can be measured, as well as

Copper or Aluminum wires.

NOTE: The sample length of user wires must be 20ft in FEET or 5m in

METERmode.

How to Save the Resistance of a User Wire

NOTE: You will need a 20’ (or 5M in meter mode) sample length of the

wire you are programming into the meter. This will measure the resist-

ance of that wire and store a value to correctly measure longer lengths.

1. Turn the CLM100B on and perform the calibration procedure in

the “R” position.

2. Allow the CLM100B to attain the same temperature as the

user wire.

WARNING!

Make sure wire under test is not energized. Never apply voltage

to inputs.

3. 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.

4. Using the selector on the CLM100B, turn to a required memory

location in the User Select range. The meter has 6 internal

memory locations from 1 to 6, and the selected memory location

number will illuminate at the top left corner of the display. If the

selected memory location is occupied, the display shows

“

0000

”. If the selected memory location is empty, the display

shows “

”.

5. Press the ”FT” or ”M” button to select the measurement unit.

6. Press the Kelvin clip to one end of the 20’ section of the user wire

and the other Kelvin clip to the other end of the wire.

7. Press the ”MEM” button to enter the Memory function. The

“MEM” enunciator will illuminate in the top of the display.

8. Press ”CAL” button to store the resistance of the user wire.

9. If there is any stored resistance value in the selected memory

location, the meter will display “

SurE

”. In this case, press “CAL”

button again to store the new resistance value.

10. Press “MEM” button or turn the selector to any position in order

to exit Memory function.

Measuring Length of Wire in the User Select Mode

1. Turn the CLM100B on and perform the calibration procedure in

the “R” position.

2. Allow the CLM100B to attain the same temperature as the wire

under test.

WARNING!

Make sure wire under test is not energized. Never apply voltage

to inputs.

3. 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.

4. Select the required memory location in the User Select Mode

using the selector and the Listing label on the bottom case.

5. Press the “FT” or “M” button to select the measurement unit.

6. Connect a Kelvin clip to one of the wire under test and the other

Kelvin clip to the other end of the wire.

7. Read the length of wire directly from the display.

8. Disconnect the test leads from the meter when not in use.

CLM100B-MAN P. 2

• When measuring wire for insertion into 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.

S p e c i f i c a t i o n s

Clearing Memory

1. Disconnect the test lead s from the meter.

2. Select the required memory location to be cleared in the User

Select range using the selector.

3. Press “MEM” button to enter the Memory function. The “MEM”

enunciator will illuminate in the top of the display.

4. Press “CAL” button. Then, the meter will display “

SurE

”.

5. Press “CAL” button again to clear the stored data.

6. Press “MEM” button or turn the selector to any position in order

to exit Clearing memory function.

Low Battery Indication

The “BAT” enunciator will illuminate in 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

1. 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.

2. Read the resistance of the wire directly from the display.

Operational Hints

• Never apply voltage to the inputs.

• Temperature affects readings. Allow the CLM100B to attain the

ambient temperature of the wire under test.

• The sample length of user wires for the User Select Mode must be

20ft in FEET or 5m in METER mode.

• The Listing label on the bottom case of the meter enables users to

make a short memo of each user wire for the User Select Mode.

• Use a 9 volt alkaline battery only.

• If the meter is on and inactivate for approximately 15 minutes, the

meter will automatically enter into Sleep mode and display “----”.

Reactivate the meter by turning the selector to any position or

pressing any button.

• Use the test leads that come with the meter 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 the alligator clips are connected across the diameter of

the wire under test.

Measurement Range

Overall range limit: 0.5 to 100.0 kft

26 ga to 4/0 ga

250 MCM to 500 MCM

Due to the minimum and maximum resistance limits, specific wires

will have a range specific to that wire. Please refer to the following

table to determine the minimum and maximum length that can be

measured for specific gauge wires.

Gauge Min (Ft) Max (Ft) Min (M) Max (M)

500MCM 100.0 100.0k 30.5 30.00k

400MCM 90.0 100.0k 27.4 30.00k

350MCM 85.0 100.0k 25.9 30.00k

300MCM 80.0 100.0k 24.4 30.00k

250MCM 70.0 100.0k 21.3 30.00k

4/0 60.0 100.0k 18.3 30.00k

3/0 50.0 100.0k 15.2 30.00k

2/0 40.0 100.0k 12.2 30.00k

1/0 30.0 100.0k 9.1 30.00k

2 20.0 100.0k 6.1 30.00k

3 15.0 100.0k 4.6 30.00k

4 12.0 100.0k 3.7 30.00k

5 9.5 100.0k 2.9 30.00k

6 7.5 100.0k 2.3 30.00k

7 6.0 100.0k 1.8 30.00k

8 4.5 100.0k 1.4 30.00k

9 4.0 100.0k 1.2 30.00k

10 3.0 98.03k 0.9 29.88k

11 2.0 78.12k 0.6 23.81k

12 2.0 61.72k 0.6 18.81k

13 1.5 49.01k 0.5 14.94k

14 1.0 38.75k 0.3 11.81k

15 1.0 30.76k 0.3 9,377

16 1.0 24.44k 0.3 7,451

17 0.5 19.37k 0.2 5,906

18 0.5 15.35k 0.2 4,681

19 0.5 12.17k 0.2 3,712

20 0.5 9,619 0.2 2,931

21 0.5 7,629 0.2 2,325

22 0.5 6,059 0.2 1,846

23 0.5 4,809 0.2 1,466

24 0.5 3,819 0.2 1,164

25 0.5 3,029 0.2 923.4

26 0.5 2,399 0.2 731.4

CLM100B-MAN P. 3

CLM100B-MAN P. 4

Resolution: 0.5 feet or 0.1 m (Length)

1 mΩ(Resistance)

Accuracy:

±(1% of reading + 1m or 3ft) < 100m or 300ft at 65˚ to 75˚F

±(1% of reading) > 100m or 300ft at 65˚ to 75˚

±(2% of reading + 1m or 3ft) < 100m or 300ft at 65˚ and above 75˚F

±(2% of reading) > 100m or 300ft below 65˚ and above 75˚F

Use the User Select mode for better measurement accuracies.

Resistance: 0 to 10Ω: ±(0.5% of reading + 3 LSD)

10 to 99.99Ω: ±(0.5% of reading + 10 LSD)

LSD = Least Significant Digit

Operation Temperature: 32˚ to 104˚F

Operating Humidity: 20% to 80% RH

Sleep Mode: After 15 minutes (Approx.)

Battery Life:

Depends on use. Typically 60 hours (180 hours in Sleep mode).

Extended measurement times can lower battery life to no less than

12 hours

Limited Warranty

The CLM100B is warranted to be free from defects in materials and workmanship for a

period of five years from the date of purchase. If within the warra n ty period your

instrument should become inoperative from such defects, the unit will be repaired or

replaced at UEi’s option. This warra n ty covers normal use and does not cover damage

which occurs in shipment or failure which results from alteration, tampering, accident,

misuse, abuse, neglect or improper maintenance. Batteries and consequential damage

resulting from failed batteries are not covered by warra n ty.

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 original purchase date will be required

before warra n ty repairs will be rendered. Instruments out of warra n ty will be repaired

(when repairable) for a service charge. Return the unit postage paid and insured to:

1-800-547-5740 • FAX: (503) 643-6322

www.ueitest.com • Email: [email protected]om

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

state to state.

CLM100B

Cable Length Meter

PLEASE

RECYCLE

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