American Magnetics 4Q06250PS-430 High Stability Integrated Power Supply System - Manual (Page 177)

Rev. 5 159
Appendix
Model 430 Specifications
A.11 Model 430 Programmer Specifications
Additional Model 430 Programmer Specifications
Table A-12. Model 430 Programmer Specifications @ 25°C
Magnet Current Control
Parameters
Standard Model 430 Configurations: Programmable Limits
±
5 A
±
10 A
+
100 A
+
120 A
±
125 A +200 A
±
250 A
+
300 A +500 A
Measurement Resolution ( μ A): 0.625 1.25 6.25 7.5 15.6 12.5 31.2 18.7 31.2
Accuracy (% of
I
max
): 0.04
a
a. 0.005 for zero flux current sensing (high-stability) system
0.04
a
0.04
a
0.04
a
0.04
a
0.04
a
0.04
a 0.005 0.005
Minimum Ramp Rate ( μ A/min): 10 10 100 100 100 100 100 100 100
Maximum Ramp Rate (A/sec): 1 1 10 10 10 20 20 30 30
Magnet Current Control
Temperature Coefficient: 0.01% of
I
max
per °C
Stability: With standard resistive shunt, better than
0.02% of
I
max
after 20 minutes at desired
current and better than 0.01% of I
max
after 60
minutes at desired current ,
With zero flux current sensing option, 0.001%
of
I
max
after 10 minutes at desired current
Programming Resolution: 15 digits a
Ramp Rate Resolution: 15 digits
a
Nominal Load Inductance Range: 0.5 to 100 H
Program Out Voltage
Programmable Limits:
−
10 to +10 Vdc
Accuracy: 3 mV (0.03% of V
max
)
Temperature Coefficient: 0.2 mV per °C (0.002% of V
max
per °C)
Resolution: 0.3 mV
Stability: Better than 10 mV p-p when paused or holding
(with 0.5 to 100 H load)
Magnet Voltage Measurement
Maximum Limits: − 20 to +20 Vdc
Accuracy: 20 mV (0.1% of V
max
per °C)
Temperature Coefficient: 1.5 mV per °C (0.0075% of V
max
per °C)
Resolution: 10 mV
Persistent Switch Heater Output