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Multi ALCL-40L Instruction Manual

Leakage clamp tester for arrester
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Leakage Clamp Tester
for Arrester
ALCL-40L
Instruction Manual
Thank you very much for selecting our ALCL-40L Leakage
Clamp Tester for Arrester .
This model is complex instrument and employs a very reliable
mechanical/electronic design.
Before you use your new
instrument, read this instruction manual completely and
familiarize yourself thoroughly with all functions. With proper
use and care, your tester will give you years of satisfactory
service.
Multi Measuring Instruments Co., Ltd.
Akihabara murai-Bldg. 7F,
1-26 Kanda Sakuma-cho,
Chiyoda-ku, Tokyo, 101-0025 Japan
Tel: 81-3-3251-7013
Fax: 81-3-3253-4278
CONTENTS
1. General.........................................................................................1
2. Safety summary..............................................................................2
3. Specification...................................................................................4
4. Name of parts.................................................................................6
5. Measurement..................................................................................8
5-1. Replacement of batteries.............................................................8
5-2. Motor operation.........................................................................9
5-3. Measuring method.....................................................................9
5-4. Stopper.................................................................................10
6. Maintenance.................................................................................12
7. Warranty.....................................................................................13

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Summary of Contents for Multi ALCL-40L

  • Page 1 5-3. Measuring method……………………………………………………………9 5-4. Stopper………………………………………………………………………10 6. Maintenance……………………………………………………………………...12 7. Warranty………………………………………………………………………….13 Thank you very much for selecting our ALCL-40L Leakage Clamp Tester for Arrester . This model is complex instrument and employs a very reliable mechanical/electronic design. Before you use your new instrument, read this instruction manual completely and familiarize yourself thoroughly with all functions.

  • Page 2: General

    1. General 2. Safety summary ALCL-40L is a specially designed clamp tester for the leakage and harmonics current This instrument has been manufactured and inspected in our factory before measurements of grounding line of oxide surge arrester. It measures very low shipment.

  • Page 3: Measurement

    3. SPECIFICATIONS Warning ●Before operating this instrument, familiarize yourself with all instructions outlined CT Sensor in this manual. : φ37mm CT max. opening size ●The instrument must only be used by suitably trained competent parsons. Opening/closing of the jaw : Motor operation Withstanding voltage : AC 2300V, 1 minute (between the core of CT and CT ●Always check to make sure that the function switch is set to the proper position.

  • Page 4: Measuring Method

    Harmonic Current Measurement (Fundamental & 3rd harmonics) 4. Name of parts Measuring method : PLL method Minimum fundamental current input : More than 3% of full scale in each range ※ Accuracy : (1%±5digit)±(Basic accuracy of ACA) –(Error by neighboring harmonics) ※...

  • Page 5: Replacement Of Batteries

    ④ Power on/off switch : Push this switch once, power will be turned on and 5. Measurement push again for power off. (Power will be tured off automatically 10 minutes later 5-1. Replacement of batteries after power on.) ① Make sure that the power is turned off. ⑤...
  • Page 6 ③ Set ‘Mode switch’ to “RMS” position and set ‘Range switch’ to the suitable 5-2. Motor operation range. ● Opening method of the CT sensor ④ Read the displayed value. Set ‘CT switch’ to “CT OPEN” position, the CT sensor will be opened by the ⑤...

  • Page 7: Maintenance

    6. Maintenance Warning When making requests for repair service, please bring the instrument directly to the When removing the CT sensor from conductor, use CAUTION as dangerous dealer. If this is impossible, however, send the instrument directly to our sales office. voltage may be present.

  • Page 8: Warranty

    7. Warranty The instruments are subject to strict quality control. However, should the instrument function improperly during daily use, you are protected by our 12 months warranty (valid only with invoice). We will repair free of charge any defects in workmanship for our original defect.

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