HT Instruments HT97U User manual

ENGLISH HT97U
© Copyright HT ITALIA 2008 Release 1.08 - 30/01/2008
USER MANUAL
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=1 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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