4 model 420 specifications @ 25 ˚c, Model 420 specifications @ 25 °c, Introduction – American Magnetics 420 Power Supply Programmer User Manual
Page 25
7
Introduction
Specifications
1.4 Model 420 Specifications @ 25 °C
Additional Specifications for all Configurations
Magnet Current
Control Parameters
Standard Model 420 Configurations: Programmable Limits
±
5 A
±
10 A
±
100 A
±
200 A
±
300 A
±
600 A
±
2000 A
Measurement Resolution:
10
µ
A
20
µ
A
0.2 mA
0.4 mA
0.6 mA
1.2 mA
4.0 mA
Accuracy (% of
I
max
):
0.1%
0.1%
0.1%
0.1%
0.1%
0.005%
0.005%
Minimum Ramp Rate: 10
µ
A/min 10
µ
A/min 0.1 mA/min
0.1 mA/min
0.1 mA/min
1 mA/min
1 mA/min
Maximum Ramp Rate:
1 A/sec
1 A/sec
10 A/sec
20 A/sec
30 A/sec
60 A/sec
100 A/sec
Magnet Current Control
Temperature Coefficient:
0.01% of
I
max
/ °C
Stability:
Better than 0.01% (40 min. warm-up)
Programming Resolution:
15 digits
a
Ramp Rate Resolution:
15 digits
Nominal Load Inductance Range:
0.5 to 100 Henries
Program Out Voltage
Programmable Limits:
−
10 to +10 VDC (voltage-voltage mode)
Accuracy:
0.1% of V
max
Temperature Coefficient:
0.005% of V
max
/ °C
Resolution:
20
µ
V
Stability:
Better than 35 mV P-P when paused or holding
Magnet Voltage Measurement
Maximum Limits:
−
20 to +20 VDC
Accuracy:
0.1%
Temperature Coefficient:
0.01% of V
max
/ °C
Resolution:
10 mV
Persistent Switch Heater Output
Programmable Limits:
0.1 to 100 mA DC
Accuracy:
0.5 mA
Temperature Coefficient:
0.02 mA / °C
Maximum Compliance:
13.5 V
Resolution:
0.1 mA
Optional External Supply Limits:
10 VA, 0.5 A max, 100 VDC max