MULTI MEASURING INSTRUMENTS HCL-1000DM Instruction Manual

INSTRUCTION MANUAL

MODEL HCL-1000DM

DIGITAL CLAMP TESTER

MULTI

1. FEATURES

* Safe AC current measurement on circuit having internal voltage from AC 80V
to AC 46KV.
(In case of more than 600V must be connected with Hot Stick)

* Provides wide range of current measurement from AC 0.01A to 600A.

* Sealed to withstand water and contaminants

* Provides the smooth and easy clamping for the cable with special made
"PUSH TO OPEN" mechanism.

2. CAUTION

* Before operating this instrument, familiarize yourself with instruction outlined
in this manual. .
* Always check to make sure that the function switch is set to the proper position.
* To avoid electrical shock, operate this instrument very carefully, especially for
the measurement of the circuit with more than AC 1000V.
* As the high voltage circuit is very dangerous, those who do not have such

specialized knowledge must not use this instrument.
* Never make measurements for uninsulated conductors or bus bars.
* Do not use this instrument, if you find any damage on the instrument of CT and or
body case.
* Through this instrument is sealed to withstand water, avoid the operation of this
instrument under heavy rain and humidity for the safety.
* Do not disassemble this instrument.
* When [B] sign appears on the display during the use of this instrument, replace the
batteries to new ones, as the operation voltage gets below than normal use for the
measurement.
* This model is high precision measuring instrument.
It may cause defect, if the CT part receives damage.

3. CARRY AND STORAGE

* Take care not to drop down the instrument and or not to load heavy weight and
or strong shock to the instrument.
* Do not apply chemicals to this instrument.
* Do not leave this instrument on the road and or the place under the direct sunshine
during summer and also do not leave it in the high temperature place, such as
inside of the car, etc.
* Keep the instrument clean and chose the storage place where is dry and not getting

direct sunshine.

4. SPECIFICATION

Measuring method Dual integration mode
Measuring function AC line current
Display 3.5 digit LCD, max, reading of 1999 with
annunciators
Range 0～20A/600A(50/60Hz)
Ranging 2 manual ranging
Accuracy 23℃±5℃, 80RH or less

Range

Resolution

Accuracy

20A

0.01A

±2.0% rdg ±8 dgt

600A

1A

0～400A±2.0% rdg ±8 dgt

400～600A±3.0% rdg ±8 dgt

Jaw opening capability 35mmφ
Low battery indication Display "B" mark on LCD readout
Over range indication Blanking of all digits except MSD1
(Except 600A range)
Sampling 2 times/sec
Peak hold indication "PEAK" LED lamp indication
Insulation resistance 100MΩ or more by DC 1000V insulation tester
(Between operation handle and core of CT)
Withstanding voltage AC 15KV, 1 minute (Between handle and core
of CT)
AC 100KV, 5 minute (Between rod of hot stick
and core of CT).
Limitation of circuit voltage AC 80V to 46KV with hot stick
Power supply 1.5V("AAA" size) x2
Structure Water resistance rankⅡ(Japanese standard)
Size 70(W) x 356(H) x 32(D)mm
Weight Approx. 370g
Accessories Carrying case…………..1
Instruction manual….…1
Batteries…………………2
Option Hot stick (2m, 5m, 10m, 12m)

5. DIMENTIONS & PANEL

70
32 50 ②
①
①Current Transducer

②Open/Close guide for CT
③Power switch for CT
④Range Selector switch for
CT (20A/600A)
⑤Peak Hold switch
⑥ ⑥LCD display

⑤ ⑦Battery Cover
⑧Universal Adaptor for

⑦ Hot Stick

④

⑧ ③

6. METHOD OF MEASUREMENT

6-1. Preparation and Caution before Measurement

* Before making measurements, install the batteries.
* Check if there are no damage or unusualness on the instrument.
* Check the battery by switching the power on.
* Do not change the batteries, keeping clamp the instrument on the wire.
* Remove the batteries, if the instrument will not be used for a long period
of time.
* Do not make measurement with the battery cover off.

6-2. Measurement

1) Push the power switch to ON and select appropriate range to be measured by

the range select switch.

2) Push the peak hold switch and confirm the light of peak hold lamp.

3) Clamp CT to the conductor to be measured by pushing open/close guide.

4) After measurement, draw out CT from the conductor and read the measured

value.

5) For next measurement, set the peak hold switch once to OFF and then, set to

ON again.

6) Push the power switch to become OFF, after finished all measurements.

* The display value may not become "0" even when there is no input current
of the conductor but it is caused from the measuring method & design of
this instrument and such phenomenon will not effect on any accuracy of the
actual measurement value.
* The instrument may get heat and or damage if the over value current is
loaded to the CT. Do not load the current more than 600A.
* Avoid the measurement at the place where 2 wires contact with CT at the

same time.

6-3. Instrument/Replacement of Batteries

1) Confirm the power switch is OFF.

2) Remove the battery covers by the ◯

+

driver. (Be careful not to miss the

screw cap).

3) Install the batteries according to the indication of battery case.

4) Set up the battery cover and make the screws tightened firmly.

5) Put the screw cap on.
* Do not use the batteries by mixing new & old ones or used ones.

7. TESTING OF WITHSTANDING VOLTAGE

We recommend the testing if withstand voltage by loading 100KV for

5 minute between rod of hot stick and core of CT once a year for the
safety.

Manufactured by

MULTI MEASURING INSTRUMENTS CO.,LTD.
Akihabara Murai Bldg., 7F, 1-26 Kanda Sakuma-cho
Chiyoda-ku, Tokyo, 101-0025 Japan
TEL : [phone] FAX : [phone]
Home Page : http://www.mutimic.com/
E-mail : [e-mail]