ENGLISH INSTRUCTION MANUAL
1. Introduction
Welcome to choose this product!
This is a kind of 31/2 bit portable digital Clamp-Shape meter, which may
measure AC current and AC & DC voltage, resistance, test for connection and
disconnection, positive voltage on diode, temperature, frequency, phase
sequence etc.. The meter is the ideal tool of the industries of electricity,
electronics and refrigeration due to wonderful structure, easily operated, more
portable.
2. Safety
The meter is designed in accordance with the safety requirements of the
standard IEC1010-1. Please
Carefully read this manual before operate it.
2.1 Note for safety symbols:
Warning hint, Caution!
Danger by high-voltage shock!
Double insulation protection
2.2 During measuring, any range may not exceed its input value in Max
2.3 At resistance range, not allowed to impose voltage on input
2.4 During measuring, to prevent the meter from damage, do not turn its round
switch to change its range.
2.5 Over DC60V or AC30V may be shock danger, carefully operating during
measuring.
2.6 During clamping non-insulation wire, must specially be careful to avoid
2.7 During measuring current, fingers must be placed on the back of the
armguard of the meter.
2.8 The meter shall avoid straight sunlight, high temperature and humidity.
2.9 After measuring end, the turning switch shall be at OFF.
2.10 Idling for long term, its batteries shall be taken out to prevent the batteries
from leaking liquid to damage parts.
3. Features
3.1 Displaying mode: LCD displayer
3.2 Maximum display: 1999
3.3 Maximum open: 30mm
3.4 Automatic negative indication: Displaying “-“
3.5 Low battery indication: Displaying “
”
3.6 Operating environment: 0
C~40
C
，
70%RH(Max.)
3.7 Storage environment: -10
C~60
C
，
85%RH(Max.)
3.8 Power supply: 9V battery (IEC6F22, NEDA1604, JIS006P or equivalent
types),
3.11 Size 221
（
Length
）
75
（
Width
）
31
（
Height
）
mm
3.12 Weight: about 240gram
（
with batteries
）
4. Usage of Clamp-Shape Meter with Manual Range
4.1 Instruction on operating panel (see figure)
（
1
）
Clamp mouth
（
2
）
Trigger
（
3
）
Range switch: choosing current, voltage, resistance, frequency,
forward voltage on diode, test for connection and disconnection and
range.
（
4
）
DH reading holding button: pressing the button may lock the current
reading, and displaying “DH” symbol, repressing the button to
cancel the holding function, “DH” symbol disappears.
Phase sequence: At range AC600V, “DH” button is the switch to measure
phase sequence, pressing the button to display “ “symbol for measuring
phase sequence, repressing the button to cancel the function, “ “symbol
disappears.
（
5
）
LCD
（
6
）
” COM” for common input ( input ground)
（
7
）
“V/
”voltage-resistance-frequency-temperature input jack
（
8
）
Armguard
4.2 Measurement of AC voltage
Turn the range switch into the range “A600V”, Plug the black pen into the
jack“COM”
，
the red pen into the jack“V/
”
，
in parallel connect the pens with
the measured circuit
，
read the displaying number.
4.3 Measurement of DC voltage
Turn the range switch into the range “D600V”, Plug the black pen into the
jack“COM”
，
the red pen into the jack“V/
”
，
in parallel connect the pens with
the measured circuit
，
read the displaying number. When the reading is less
than 20V, turn the range switch at range ”DC20V” to measure again.
4.4 Measurement of AC current
Turn the range switch into the range “AC600A”, clamp the wire of the
measured current, shall put the wire into the canter of the completely closing
clamp mouth as soon as possible, directly get the reading. When the reading is
less, turn the range switch at lower range to measure again.
Cautions
：
If two or more than two different wires are clamped, the
measuring can’t be done.
4.5 Measurement of resistor and connection & disconnection
（
1
）
Turn the range switch into the range 2k
（
2
）
plug the black pen into the jack“COM”
，
the red pen into the jack“V/
”
（
3
）
In parallel connect the pens into the two terminators of the measured
circuit or component
，
get the reading.
（
4
）
when the two pens open or input overload
，
the displayer shows “1”
4.7 Measurement of forward voltage of diode
（
1
）
Turn the range switch into the range
，
when the input opens, the
meter shows over range
（
show“1”
）。
（
2
）
Plug the black pen into the jack“COM”
，
the red pen into the jack“V/
”,
（
the red pen’s polarity is“+”
）
（
3
）
In parallel connect the pens into the two terminators of the measured
diode
，
get the reading for approximation of the forward voltage.
（
4
）
when the diode is connected in reverse or the input open
，
the displayer
shall show “1”.
4.8 Test of connection and disconnection
（
1
）
Turn the range switch into the range
，
when the input opens, the
meter shall show over range
（
show “1”
）。
（
2
）
Plug the black pen into the jack“COM”
，
the red into the jack“V/
”
。
（
3
）
In parallel connect the two pens into the two terminators of the measured
circuit
，
if the resistance between the tested two points is less than approximate
50
，
the buzzer shall make a sound.
Cautions: resistor, diode and connection and disconnection sharing the
same range, when measuring, the measured component or circuit cannot be
electrified, otherwise, shall misjudge.
4.8 Test of connection and disconnection
（
1
）
Turn the range switch into the range
，
when the input opens, the
meter shall show over range
（
show “1”
）。
（
2
）
Plug the black pen into the jack“COM”
，
the red into the jack“V/
”
。
（
3
）
In parallel connect the two pens into the two terminators of the measured
circuit
，
if the resistance between the tested two points is less than approximate
50
，
the buzzer shall make a sound.
Cautions: resistor, diode and connection and disconnection sharing the
same range, when measuring, the measured component or circuit cannot be
electrified, otherwise, shall misjudge.
4.9 Measurement of temperature
Turn the range switch into the range
℃
, put the black plug of K type
thermoelectric couple attached with the meter into the jack“COM”, the red into
the jack“V/
”, here the meter shall show environmental temperature, place the
detector head on the measured object, get the reading when the detector head
and the measured object are the same temperature.