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MULTI MEASURING INSTRUMENTS M-1800 Instruction Manual

Digital clamp-on tester
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DIGITAL CLAMP-ON TESTER
Thank you very much for selecting our digital AC current
clamp-on tester.
This model is complex instrument and employ 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.

1. FEATURES

● 80mmφ big window CT.
● DC mV analog data output for recorder.
● Continuous long time measurement available

2. SPECIFICATION

Measuring method
Display
Range
Ranging
Accuracy: 23℃±5℃, less than 80% RH (50/60Hz)
Range
AC 20A
AC 200A
AC 1800A
Jaw opening capability
Over range indication
Maximum indication
Low battery indication
Data hold indication
Data output
MODEL M-1800

INSTRUCTION MANUAL

Dual integration mode
3.5 digit LCD
AC 20A/200A/1800A
3 ranges manual
Mini. Resolution
10mA
0.1A
1A
80mmφ
Blanking of all digits except MSD1
1999 count
"B" mark on LCD readout
"D･H" mark on LCD readout
DC 100mV to each range full scale (DC90mV/1800A)
Accuracy
±3.0%rdg ±5dgt

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Summary of Contents for MULTI MEASURING INSTRUMENTS M-1800

  • Page 1: Instruction Manual

    DIGITAL CLAMP-ON TESTER MODEL M-1800 INSTRUCTION MANUAL Thank you very much for selecting our digital AC current clamp-on tester. This model is complex instrument and employ 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 Sampling time 2 times/sec. Limitation of circuit voltage Less than AC 600V Withstanding voltage AC2000V/1 minute between CT core and outer case Operating temperature 0℃ to +40℃, ＜80%RH (non-condensing) Storage temperature -10℃ to +60℃, ＜70% RH (non-condensing) Power supply UM-4 (1.5V)x2 Power consumption Approx.
  • Page 3 5. METHOD OF MEASUREMENT Measurement of Line Current 1) Set the power switch to “ON” position. 2) Set the range selector switch to arrange appropriate to the current to be measured. 3) Clamp the conductor of the circuit under test. * Note: Clamp around only one conductor in the circuit to be measured.
  • Page 4 Defect caused from the renovations or repairs done by someone else than us or our representatives. d. Defect not caused from our responsibilities. MULTI MEASURING INSTRUMENTS CO.,LTD. Akihabara Murai Bldg., 7F, 1-26 Kanda Sakuma-cho, Chiyoda-ku, Tokyo,101-0025 Japan TEL : 81-3-3251-7016 FAX : 81-3-3253-4278 Home Page : http://www.multimic.com/...

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