Safety Warning; Technical Specifications; Measurement Procedure - HT HT98U Bedienungsanleitung

INSTRUCTION MANUAL
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This note must be read in full. Any operations on live conductors can be dangerous
•
The operator is expected to be fully aware of all necessary electrical safety regulations and
procedures. Safe operation is this responsibility
•
Never exceed the limit of voltage (600V) or current (1000A AC/DC) indicate in this manual
•
When measuring current, if strong current nears to the clamp jaw, it will affect the accuracy
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While measuring current, always put the tested conductor in the center of clamp jaw so as to obtain a
more accurate reading
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It is up to the user to ensure that the equipment is at all times in its original safe conditions
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Strong vibrations and impacts may cause damage to the instrument
INSTRUMENT DESCRIPTION
Fig. 1: Instrument description

TECHNICAL SPECIFICATIONS

Primary rates current:
Measuring range:
Output signal:
Output ratio:
Accuracy:
Resolution:
External minimum load:
Frequency bandwidth:
Pollution degree:

MEASUREMENT PROCEDURE

1. Connect clamp's output terminal to the inputs of the instrument to be used as indicator
2. Press and hold the ON/OFF selector on "Test" position and verify the red LED on. Replace the battery (see Fig.2) if the
red LED is off
3. Power on the meter by move the selector on "On" position. The red LED should be fixed on. Verify the zero at display
of instrument to be used as indicator. If no move ZERO regulation trimmer on clamp before start the measurement
4. Open the clamp and put the tested conductor in the center of the clamp jaws. No gap is allowed between the
connections of clamp jaws. Always consider the correct connection of clamp (see Fig1)
5. Read the current value in the indicator's display. Turn off the meter at the end of measurements
CAUTION: this symbol indicates that equipment and its accessories shall be subject to a
separate collection and correct disposal.
LEGEND:
1. Arrow which shows
the current reference
direction
2. ZERO adjustment
thumbwheel
3. Red LED indicator
4. ON/OFF and battery
test selector
1000A AC/DC FS
1A ÷1200A
1V AC/DC max
1000/1 1A = 1mV
±(1%reading +0.5A)
100mA
10kΩ
DC ÷20kHz (-1dB)
2 according to IEC/EN61010-1

SAFETY WARNING

BATTERY REPLACEMENT
Fig. 2: Battery replacement operation
Consider the herewith steps to replace internal battery (for
voltage <6V) (see Fig.2):
1. Perform a little pressure on the hole on the top of
battery cover by using e.g. a small screwdriver
2. Shift and detach the battery cover
3. Remove the battery and replace with a same type new
one considering the correct polarity which is shown on
clamp handle
4. Replace with a click the battery cover
Dielectric strength:
Insulation:
Overvoltage category:
Power supply:
Temperature range:
Max diameter of cable:
Dimensions (mm):
Weight:
Output connection:
HT98U
5,5KV 50Hz 1min
double insulation
CAT III 600V
1x9V battery type IEC 6F22
0° ÷ +50°C
52mm
213(L) x 85(La) x 24(D)
ca 0.6kg
Hypertac connector
2