
ENGLISH HT97U
© Copyright HT ITALIA 2008 Release 1.08 - 30/01/2008
USER MANUAL
• 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.
• It is up to the user to ensure that the equipment is at all times in its original safe
conditions.
•
Operate on ranges selector on the bottom part of clamp, free of instrument connection
cable, (see Figure) to modify current ranges.
CAUTION
SPECIFICATIONS
Primary rates current: 10A, 100A, 1000A FS
Measuring range: 0,1 ÷ 10A / 0.5A ÷ 100A / 1A ÷ 1000A
Output signal: 1V
Protection: By diodes
Ratio: 100mV/A – 10mV/A and 1mV/A
Accuracy: See table
Max error: 2% (of reading)
Internal load: 10A=100Ω; 100A=10Ω; 1000A=1Ω
External min load: 100 times the internal load
Power measurement: Take care to keep the conventional direction P1 ⇒ P2 rear of the arrows
Frequency range: 40Hz to 10000 Hz
Pollution degree: 2 according to IEC 1010-1
Dielectric strength: 5,5 KV 50 Hz 1 min
Temperature range: -10 ÷ +50 °C
Overvoltage category: CAT III 600V
“Opening” cable: 54 mm
"Opening" bus bars: 35x35mm or 50x12mm
Dimensions (mm): 105 x 225 x 31mm
Weight: 720 g
Output connection: Shielded cable FM2R 2m long , ended with a FRB D01 connector
Ranges selector 10-100-1000A
ACCURACIES
10A FS
Accuracy % of output signal
Phase error [°] not specified 10 5
100A FS
Accuracy % of output signal
Phase error [°] 2 1 1
1000A FS
Accuracy % of output signal
Phase error [°] 1 1 0.5
Measurements performed with digital instrument, model 1 .200.000 dig its class 0 .2 Cofrac
0.1 ÷ 0.5A 0.5 ÷ 2.0A 2.0 ÷ 10A
±(2%rdg + 4mV) ±(2%rdg + 4mV) ±(0.5%rdg + 5mV)
0.1 ÷ 1A 1 ÷ 20A 20 ÷ 100A
±(2%rdg + 3mV) ±(1%rdg + 2mV) ±(1%rdg + 2mV)
1 ÷ 10A 10 ÷ 200A 200 ÷ 1000A
±(1%rdg + 1mV) ±(1%rdg + 1mV) ±(1%rdg + 1mV)
traceable
CAUTION: this symbol indicates that equipment and its accessories shall be subject to a
separate collection and correct disposal.
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