Accuracy specifications apply for 18°C – 28ºC. Setting accuracies apply with slew rate control at
mid position and at 50W load power; regulation specifies variation at other powers.
INPUT
Maximum Input Ratings
Current:
Voltage:
Power:
Reverse Polarity:
Off State Leakage:
Minimum Operating Voltage: 2V at 80A; typically 1V @ 40A, 0·5V @ 10A.
Isolation Voltage:
Input Terminals
Rear Panel Input:
Front Panel Input:
External Voltage Sense
Connection:
Input Impedance:
Max. Sense Voltage Drop:
OPERATING MODES
Constant Current Mode (CI)
Current Ranges:
Setting Accuracy:
Regulation:
Temperature Coefficient:
Slew Rate Ranges:
Minimum transition time:
Constant Resistance Mode (CR)
Resistance Ranges:
Setting Accuracy:
Regulation:
Temperature Coefficient:
Slew Rate Ranges:
Minimum transition time:
80 Amps max. at rear panel terminals.
30 Amps max. at front panel terminals
80 Volts max. while conducting current.
Surge suppressors start to conduct at 120V (nominal),
Max. non-repetitive surge energy: 80 Joules.
320 Watts max. up to 28ºC, derating to 300 watts at 40ºC.
Diode will conduct; 80 Amps max.
<10 mA, plus 680kΩ sensing resistance.
± 300Vdc max, either load input to chassis ground.
Safety terminals accepting 6mm diameter wire, 6mm plugs or 8mm
spades at 80 Amps max or 4mm plugs at 30 Amps max.
Safety terminals accepting 4mm diameter wire, 4mm plugs or 6·5mm
spades. 30 Amps max.
Terminal block on rear panel. Slide switch to select between Internal
and External Voltage Sense.
680kΩ each input to load negative.
6V.
0 to 8 A (1 mA resolution) and 0 to 80 A (10 mA resolution).
± (0·2% + 30 mA).
< 30 mA for 90% load power change (V > 2 Volts).
< (0·02% + 5 mA) per ºC.
8 A range:
<2·5 Amp per s to >250 Amp per ms.
80 A range:
<25 Amp per s to >2500 Amp per ms.
32 µs.
0·04 to 10 Ω (0·01 Ω resolution); 2 to 400 Ω (0·1 Ω resolution).
± (0·5% + 2 digits + 30 mA).
< 2% for 90% load power change (V > 2 Volts, using remote sense).
< (0·04% + 5 mA ) per ºC.
10 Ω range: <1 Ω per s to 100 Ω per ms.
400 Ω range: <400 Ω per s to 4000 Ω per ms.
100 µs.
Specification
3