3900001 Rev. C
Page 13 of 24
User Manual
Issue
02
/
February 2015
/
Shasta User Manual
Shasta High Voltage Power Supply
Environment
Temperature:
0 to +45ºC max case temperature (Operational)
-20 to +85ºC (Storage)
Humidity:
80% maximum relative humidity up to 31ºC, reducing
linearly to 50% at 40ºC, Non-condensing
Altitude:
Sea level to 2000m
Electrical Performance
Input Power
Input voltage:
24Vdc +/-10%
Input Power:
100W, max
Protection:
Reverse diode and internal series 7A fuse
High Voltage Output
Type:
Voltage source
Voltage:
+50kV max, 50W max, Specification applies above 5kV
Polarity:
Positive
Ripple voltage:
<100V peak to peak
Load regulation:
Voltage: <0.01% for a 50% of max load variation,
Beam current: < ±2uA
Line regulation:
For a 10% change in input voltage at rated output power
Voltage: <0.01%
Beam current: < ±2uA
Temperature coefficient:
100ppm/C over operating temperature range. Applies to voltage control,
current control, voltage monitor, and current monitor
Stability:
+/-0.1% over an 8 hour period after 30 minutes warm-up
Filament Output
Type:
Current source
Output Voltage:
+5V
Output Current:
3.5A
Ripple voltage:
<50mVpp over the whole operating range
