3
4 – “COM“ clamp
Connecting clamp for the black (negative) testing conductor.
5 – Clamp
Connecting clamp for the red (positive) testing conductor.
6 – Rotary switch
It is used for selecting the required function and also for on/off
function of the measuring device.
If you are not using the measuring device, place the rotary switch in
OFF position.
7 – Lever
It is used for opening and closing the jaws.
8 – Grasp protection
It is designated for fingers protection against touching the testing
conductor. Do not hold the measuring device beyond this grasp
protection.
In-built buzzer:
When pushing the FUNC./HOLD button, the buzzer gets switched on
provided that the function of this button is active.
Before the measuring device automatically is switched off, it emits
5 short beeps, later after one minute, it emits a long beep and then it
automatically switches off.
Note: When the current range of 2/20 A is set up, the buzzer is not active.
Accuracy of measurement
The accuracy is specified for the period of one year after calibration
and at the temperature of 18 °C ~ 28 °C with relative humidity of 75 %.
Accuracy specifications are of the following form:
±([% data on the [number of the lowest valid digits])
Direct voltage (DC)
Range
Definition
Accuracy
Overload
protection
200 mV
0.1 mV
± (0.5 % + 5)
600 V rms
2 V
1 mV
± (0.8 % + 5)
20 V
10 mV
200 V
100 mV
600 V
1 V
± (1 % + 5)
Input impedance: 10 MΩ
Max. permitted input voltage: 600 V DC
Alternating voltage (AC)
Range
Definition
Accuracy
Overload
protection
2 V
1 mV
± (1.2 % + 5)
600 V rms
20 V
10 mV
200 V
100 mV
600 V
1 V
± (1.5 % + 5)
Input: 10 MΩ
Frequency range: 40 Hz – 400 Hz
Max. permitted input voltage: 600 V ef.
Response: average, calibrated to the effective value of sinusoidal wave
Alternating Current (AC)
Range
Definition
Accuracy
Overload
protection
2 A
0.001 A
≤ 0.4 A ± (6 % + 20)
600 A rms
> 0.4 A ± (5 % + 10)
20 A
0.01 A
≤ 4 A ± (4 % + 10)
> 4 A ± (3 % + 8)
200 A
0.1 A
± (2.5 % + 5)
600 A
1 A
Frequency range: 50 Hz – 60 Hz
Do not use the current sensor above its rated max. frequency 60 Hz.
Max. permitted input current: 600 A
Response: average, calibrated to the effective value of sinusoidal wave.
Resistance
Range
Definition
Accuracy
Overload
protection
200 Ω
100 mΩ
± (1.2 % + 5)
600 V peak
2 kΩ
1 Ω
± (1.0 % + 5)
20 kΩ
10 Ω
200 kΩ
100 Ω
2 MΩ
1 kΩ
± (1.2 % + 5)
20 MΩ
10 kΩ
± (1.5 % + 5)
Circuit Continuity Test Coherence
Range
Definition
Description
Overload
protection
100 mΩ
When resistance
is lower than
about 30 Ω,
the buzzer gets
switched on
600 V peak
Note: When resistance is between 30 Ω and 100 Ω, the buzzer can but it
does not have to sound. When resistance is higher than 100 Ω, the buzzer
does not sound.
Diode Test
Range
Definition
Description
Overload
protection
1 mV
Rough voltage depletion
appears in forward
direction.
Voltage at open circuit:
About 1.48
600 V peak
Mode of Holding Measurement Data
By pushing the FUNC./HOLD button measurement data appear on
the display.
Symbol D.H. displays as an indicator.
If you want to finish the mode, push the button again.
D.H. symbol disappears.
It applies to the modes for measuring voltage, current and resistance.
Measurement of Direct Voltage (DC)
1. Connect the black test conductor to the clamp „COM“ and the red
test conductor to the clamp
.
2. Set the rotary switch to position
.
3. Connect the test conductor to the measured source or circuit.
4. The measured value appears on the display.
Also polarity of connection of the red test conductor appears.
Note: To prevent electric shock or damage to the measuring device do not
connect the clamps to voltage higher than 600 V.
Measurement of Alternating Voltage (AC)
1. Connect the black test conductor to the clamp “COM“ and the red
test conductor to the clamp
.
2. Set the rotary switch to position
.
3. Connect the test conductor to the measuring source or circuit.
4. The measured value appears on the display.
Note: To prevent electric shock or damage to the measuring device do not
connect the clamps to voltage higher than 600 V.
Measurement of Alternating Current (AC)
1. Set the rotary switch to position 2/20 A~, 200/600 A~ for measuring
alternating current.
2. Push the lever and enclose the measured conductor with the jaws.
Check the jaws for perfect closure.
Note:
a. Only one conductor can be enclosed by the jaws each time.
b. For obtaining accurate data the conductor must be in the
middle of the jaws.
c. Do not touch any conductor by hand or skin.
3. The measured value appears on the display.
Note:
1. Before you start measuring, disconnect all test conductors from
the measuring device.
2. Max. measuring range of the measuring device for alternating
current is 600 A. Measurement of higher values results in meas-
uring error.
Measurement of Resistance
1. Connect the black test conductor to the clamp COM and the red
test conductor to the clamp
.
2. Set the rotary switch to position .
3. Connect the test conductor to the measured object.
4. The measured value appears on the display.
Note:
1. If resistance is equal or higher than
, it might last several
seconds until a figure is stabilized.
This is usual for measuring high resistance.
