METREL A 1636 Bedienungsanleitung

DC/AC Current clamp 2000A

A 1636

Instruction manual

Version 1.2, Code no. 20 752 824

Distributor:

Manufacturer:

METREL d.d.

Ljubljanska cesta 77

1354 Horjul

Slovenia

web site: http://www.metrel.si

e-mail: [email protected]

Mark on your equipment certifies that this equipment meets the

requirements of the EU (European Union) concerning safety and

electromagnetic compatibility regulations.

No part of this publication may be reproduced or utilized in any form or by any means without

permission in writing from METREL.

A 1636 DC/AC Current clamp

Table of contents

1SYMBOLS AND WARNINGS..................................................................................4

2DESCRIPTION OF CURRENT CLAMP...................................................................5

3OPERATION INSTRUCTIONS ................................................................................6

4MAINTENANCE.......................................................................................................7

INSPECTION ...................................................................................................................7

CLEANING......................................................................................................................7

SERVICE AND CALIBRATION.............................................................................................7

5TECHNICAL SPECIFICATIONS..............................................................................8

A 1636 DC/AC Current clamp

1 Symbols and Warnings

To ensure a high level of operator's safety during using of A 1636 DC/AC current clamps the

following warnings has to be considered:

Do not apply around or remove from hazardous live conductors.



De-energize the installation on which the current is measured or adopt safe

operating procedures when working on hazardous live installations, during

application and removal of A 1636 current clamps.



Do not use the current clamp if any damage is noticed!



Consider all generally known precautions in order to avoid risk of electric shock

while dealing with electric installations!



Do not extend hands over safety barrier to prevent of electric shock! Only

handles are allowed to be touched during measurement!



Symbol on the current clamp indicates the possibility of a hazardous live

condition if the operator ignores the required safety measures.



If the current clamps are used in a manner not specified in this Instruction

manual, the provided protection can be impaired!



Only a competent, authorized person is allowed to carry out service intervention!



Do not connect clamp output elsewhere than to Metrel PQ Analyzers (MI 2892, MI

2885, MI 2883).

Current clamps are protected by double insulation.

A 1636 DC/AC Current clamp

2 Description of current clamp

ETCR068AD Clamp AC/DC current Sensor is used for measurement of AC/DC current, phase,

power energy, power, power factor. Adopt the latest CT technology. It is portable, large clamp

design, no need to disconnect the measured circuits, non-contact, safe and fast. It can be

connected with phase detection analyzer, industrial control equipment, data recorder,

oscilloscope, harmonic analyzer, electric power quality analyzer, high precision digital multi-

meter, etc. Widely applied in electricity, communication, meteorology, railway, oilfield,

construction, measurement, scientific and research teaching unit, industrial and mining

enterprises.

A 1636 DC/AC Current clamp

3 Operation Instructions

Adopt the combination of split coil and hall element, can use to measure AC current and DC

current, when current Ⅰgo through the sensor, hall element will output a hall voltage VH,

measure the hall voltage VHand calculate the current Ⅰ. Hall voltage VHis in proportion to

current Ⅰ, and the output of sensor is: 1mV/1A, it means that when the input current is 1A, the

ratio-metric voltage is1mV.

1. Clamp

2. Up cover

3. Trigger. (Open and close the clamp).

4.Indicate of positive input AC current

5.Power-on indication

6.Low voltage indication

7.ZERO clearing key

8.ON/OFF key, the switch of the power

9.Output wire (Red wire-positive signal output; Yellow-negative signal output)

10. Down cover.

11. Screws of up/down cover (3 screw, two of them are inside the cover)

12.Cover of battery

13.Screws of battery cover.

14.Output lead

A 1636 DC/AC Current clamp

4 Maintenance

Inspection

To maintain operator safety and ensure reliability of the current clamp it is good practice to

inspect it on a regular basis. Check that the enclosure and optional connection are without

defects such as scratches or breaks.

Jaw surface must be clean. Pollution on jaw surfaces reduces the current clamp sensitivity.

Cleaning

Use a soft cloth moistened with soapy water or alcohol to clean non-metallic surface of the

current clamps and leave them to dry totally before using it.

Do not use liquids based on petrol or hydrocarbons!

Do not spill cleaning liquid over the current clamps!

To clean jaw cut surfaces use slightly oiled soft cloth.

Service and Calibration

It is essential that your clamp is regularly calibrated in order to guarantee the technical

specification listed in this Instruction manual. We recommend 2-year calibration interval. Metrel

encloses an original calibration certificate with every new instrument and clamp.

For recalibration and repairs under or out of warranty time please contact your distributor for

further information.

Only a competent, authorized person is allowed to carry out service intervention!

A 1636 DC/AC Current clamp

5 Technical Specifications

Function

Measurement of AC/DC current, phase, power

energy, power, power factor

Power supply

Zn-Mn dry cell 6F22 9VDC (external power source is

allowed)

Rated current

15mA

Test mode

Clamp CT

Clamp Size

Φ68mm

Range

DC 0.0A~2000A; AC 0.0A~1000A

Resolution

0.1A AC/DC

Signal output

1 mV/1A

Accuracy

±2.0%FS (50Hz/60Hz; 23℃±2℃, below 70%RH,

keep the wire be in the center of clamp)

Phase Error

≤3°(AC50Hz/60Hz; 23℃±2℃)

Zero clearing

Press zero key is to clear the data, eliminate the

effect of geomagnetic field to the measurement of

AC current

Output connection

Standard connection: Red wire-positive output;

Yellow wire-negative output.

Output Wire Length

Measured Wire

Position

Approximately in the geometric center of the clamp,

the errors for deviating the center of the clamp

increase 1.5%rdg.

Current Frequency

AC:45Hz-400Hz

Voltage of circuit

Below AC 600V

Voltage of battery

When the voltage of battery declines to 7.2V, and

the LED light will be on to indicate replace the

battery.

Dimension

224mmx115mmx43mm

Weight

515g

Working

Environment

-10℃~45℃below 80%rh

Storage

Environment

-10℃~60℃; below 70%rh

Insulation Strength

AC 3700V/rms (between coil and shell)

Safety Rules

IEC1010-1, IEC1010-2-032, Pollution degree:2 CAT

Ⅲ(600V)

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