Prokit's Industries MT-3120 - Manual (Page 2)

2A Mini Autorange Clamp Meter user manual
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1.2 DURING USE
1.2.1 Use the right input jack, function and range.
1.2.2 Do not take measurements that exceed the protection limit values indicated
in the specifications.
1.2.3 Do not touch the metal tips of the test leads when the meter is connected to
the circuit to be measured.
1.2.4 Keep your fingers behind the probe barriers when taking a measurement
with an effective voltage above 60V DC or 30V rms AC.
1.2.5 Do not take voltage measurement if the value between the terminals and
earth ground exceeds 600V.
1.2.6 Select the highest range if the value scale to be measured in the manual
range is unknown.
1.2.7 Disconnect the test leads from the circuit under test before turning the
rotary selector to change functions.
1.2.8 Do not measure the resistance, diode or continuity of live circuits.
1.2.9 Do not connect the meter to any voltage source while the rotary selector is
in the current, resistance, diode or continuity range.
1.2.10 Do not use the meter near explosive gases, steam or dirt.
1.2.11 Stop using the meter if any abnormalities or faults are observed.
1.2.12 Do not use the meter unless its rear case and battery cover is securely
fastened in its original position.
1.2.13 Do not store or use the meter in areas exposed to direct sunlight, at high
temperature or with high relative humidity.
1.3 SYMBOLS
Caution, risk of danger (Important safety information; refer to the
operation manual.)
Application around and removal from HAZARDOUS LIVE conductors is
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permitted.
Double insulation（Protection class II）.
CAT III Overvoltage (Installation) category III, Pollution Degree 2 per
IEC1010-1 refers to the level of Impulse Withstand Voltage protection
provided.
Conforms to European Union Directive
Earth (ground) terminal
1.4 MAINTENANCE
1.4.1 Do not attempt to remove the rear case to adjust or repair the meter. Such
actions should only be performed by a technician who fully understands the
meter and the danger involved.
1.4.2 Before opening the case and battery cover of the meter, always disconnect
test leads from all sources of electric current. Disconnect the test leads
from all sources of electric current before opening the rear case and battery
cover of the meter.
1.4.3 To avoid any electric shock caused by error readings, replace the batteries
immediately when the “ ” sign appears on the display.
1.4.4 Use damp cloth and mild detergent to clean the meter; do not use
abrasives or solvents.
1.4.5 Turn the rotary selector to OFF position to switch off the power when the
meter is not in use.
1.4.6 Remove the batteries to avoid damages to the meter if it will idle for a long
time.
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2. DESCRIPTION
- This meter is a portable professional measuring instrument with LCD and
back light easily reading. The ‘single-hand operation’ design for the range
switch makes measurement simple and easy. Overload protection and low
battery indication are provided. It is an ideal multi-function Instrument with
scores of practical applications for professional, workshop, school, hobby
and home use.
- The meter can perform measurements of AC current, AC/DC voltage,
resistance，as well as continuity and diode test.
- Both auto range and manual range are available.
- This meter is equipped with reading hold function.
- This meter is equipped with maximum value measuring function.
- This meter has function of auto power off.
2.1 NAMES OF COMPONENTS
⑴ Current Clamp
⑵ Clamp Lighting Bulb
⑶ Panel
⑷ Trigger
⑸ Back Light Switch Button ( )
⑹ Function Switch Button (SEL)
⑺ MAX Switch Button (MAX)
⑻ Liquid Crystal Display (LCD)
⑼ COM Jack
⑽ Input Jack
⑾ Auto/Manual Switch Button (RAN)
⑿ Reading Hold (HOLD)
⒀ Rotary selector
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⒁ OFF - power switch