Prokit's Industries MT-3120 - Manual

MT-3120
2A Mini Autorange Clamp Meter
User’s Manual
1 st Edition , 2010
©2010 Copy Right by Prokit’s Industries Co., Ltd.
2A Mini Autorange Clamp Meter user manual
1
CONTENTS
1. SAFETY INFORMATION …………1
1.1 PRELIMINARY ………… 1
1.2 DURING USE ……………2
1.3 SYMBOLS ……………3
1.4 MAINTENANCE ……………3
2. DESCRIPTION ………… 5
2.1 NAMES OF PARTS ……………5
2.2 SWITCH, BUTTONS AND INPUT JACKS ……………8
2.3 LCD (Liquid-crystal display) ……………9
3. SPECIFICATIONS …………10
3.1 GENERAL SPECIFICATIONS ……………10
3.2 TECHNICAL SPECIFICATIONS ……………11
4. OPERATION INSTRUCTION ………… 15
4.1 HOLDING READINGS ……………15
4.2 SWITCHING RANGES ……………15
4.3 SWITCHING MAXIMUM VALUE ……………15
4.4 SWITCHING FUNCTIONS ……………16
4.5 BACK LIGHT AND CLAMP LIGHTING BULB ……………16
4.6 AUTO POWER OFF ……………17
4.7 PREPARING FOR MEASUREMENT ……………17
4.8 MEASURING AC CURRENT ……………18
4.9 MEASURING AC VOLTAGE ……………20
4.10 MEASURING DC VOLTAGE ……………22
4.11 MEASURING RESISTANCE ……………24
2A Mini Autorange Clamp Meter user manual
2
4.12 TESTING DIODE ……………26
4.13 TESTING CONTINUITY ……………28
5. MAINTENANCE ………… 30
5.1 REPLACING THE BATTERIES ……………30
5.2 REPLACING TEST LEADS ……………30
6. ACCESSORIES ………… 32
2A Mini Autorange Clamp Meter user manual
3
1. SAFETY INFORMATION
WARNING
BE EXTREMELY CAREFUL WHEN USING THIS METER. Improper use of
this device can result in electric shock or destruction of the meter. Take
all normal safety precautions and follow the safeguards suggested in
this manual.
To exploit full functionality of the meter and ensure safe operation,
please read carefully and follow the directions in this manual.
This meter has been designed according to IEC-61010 concerning electronic
measuring instruments with an overvoltage category CAT III 600V and pollution
2.
Follow all safety and operating instructions to ensure safe use of the meter.
1.1 PRELIMINARY
1.1.1 When using the meter, the user must observe all normal safety rules
concerning:
- General protection against electric shock
- Protection of the meter against misuse
1.1.2 When the meter is delivered, check whether it has been damaged in
transit.
1.1.3 After being stored and delivered under harsh conditions, the meter should
be checked and confirmed whether any damages have been incurred.
1.1.4 Test leads must be kept in good condition. Before using check whether the
insulation on test leads has been damaged and any wire has been
exposed.
1.1.5 Use the test leads supplied to ensure operation safety. If required, they
must be replaced with test leads of the same model or class.