Electro-Meters: Hsiang Cheng SPW/SPK Transducers

General Specifications
Accuracy ( 23±3°C ):	0.25% RD + 0.02%RO / 23 + 3° C
Effective voltage:	85-150V; current 0-6A
Over capability :	Voltage 200V continuous 250V ... 10sec / hour; 500V ... 2sec / hour Current 15A continuous 50A ... 10sec / hour; 250A...1sec / hour; 400A ... 0.5sec / hour
Dielectric strength :	4KV AC rms 1 minute between input / output / power / case IEC688
Burden :	Voltage < 0.1VA at 120V input; current < 0.2VA at 5A input
Frequency :	Watt 57-63Hz; Var 60Hz only
Surge and impulse test	ANSI C37.90 / 1989, IEEE 587 / 1983, IEC255-3, 6KV (1.2 * 50 us), 3KA (8 * 20 us) ..... current only Surge Test (ring wave) : IEEE 587 / 1983 (3KV - 0.5 us / 100 KHz), IEC255-3 (2.5KV - 0.25ms / 1MHz)
Waveform:	Watt - Fundamental with 20% 3rd harmonics Var - Sinusoidual
Power Supply :	AC 115 + 20%, 50-70Hz
Output ( isolated with input ) :
Output Load :	Maximum 10Kohm for 0 to +1 mA ouput
Output Impedance	> 30 Mega ohm
Response time	< 400 ms from 0 to 99% RO at operating Ripple < 0.5% P-P RO
Stability
Temperature stability < 0.01% per degree C, from 0 to 55°C
Long term stability< 0.1% RO per year ( typically )
Storage condition	Temperature range -20 to 70°C, RH 20 to 95% non condensed
Operating condition	Temperature range -5 to 60 °C, RH 0 to 99% non condensed
Magnetic field effect	< 0.04% at center 400 A-T / M
Power dissipation:	< 6VA