User Manual    California Instruments 
CSW Series    15 
2.1.2 Output 
(ALL SPECIFICATIONS ARE FOR AC AND DC UNLESS NOTED OTHERWISE) 
Function Specification 
Calibration Interval 
1 year 
Power Factor of Load  0 lagging to 0 leading 
AC or DC Output 
Voltage 
0 to 156 VRMS L-N range ; 0 to 312 VRMS L-N range  
Output Current Per 
Phase 
16A to 115V in 156V range; 8.0A to 230V in 312V range (1850 VA maximum). 
Multiply current by the number of sources in a multiple power source system 
Crest Factor  3.25 (peak output current to RMS output current). 
   
Output Frequency  DC, or 40 Hz to 5 kHz 
Frequency Resolution 
( Without CLock/Lock 
option enabled) 
16.00 - 81.91 Hz   (0.01 Hz resolution) 
81.0 – 819.1 Hz   (0.1 Hz resolution) 
820 – 5000 Hz   (1 Hz resolution) 
Frequency Accuracy:  ±0.01% at 25ºC ±0.001%/ºC 
   
Output Power  1850 VA, maximum, per phase 
AC Noise Level  >60 dB RMS below full output (sine wave, 40 to 500 Hz). 
   
Voltage Program and 
Measurement  
Accuracy 
±0.1% of range. Above 1 kHz, add 0.2%/kHz.  Add ±0.1% of full scale for "AC 
PLUS DC" mode.  Valid for 5 to 156 VRMS and 10 to 312 VRMS at 25°C 
(77°F), sense leads connected.  Temperature coefficient less than 50 ppm/°C 
Voltage Program 
resolution 
0.1  V from Front Panel 
0.01 V from remote programming 
Voltage Stability 
 
±0.1% of full scale over 24 hours at constant line, load and temperature. 
(Measured at Remote Sense point) 
Voltage Distortion  0.25% maximum, 40 to 100 Hz; 0.5% maximum to 500 Hz; and 1% maximum 
to 1 kHz plus 1%/kHz to 5 kHz (Full linear load or No load) 
Load Regulation  ±0.025% of full scale voltage for a full resistive load to no load; above 1 kHz, 
add ±0.015%/kHz 
Line Regulation  ±0.025% of full scale for a ±10% input line change. 
   
Phase Accuracy 
Resistive Load 
±1º, 40 to 1 kHz plus ±1º/kHz above 1 kHz 
Phase Program 
Resolution 
±0.1º 
   
External Amplitude 
Mod 
0 to 5 VRMS provides 0 to 20%(±2% of full scale output) 
External Direct Input   0 to 5 VRMS (DC to 5 kHz) for 0 to full-scale output (±2% of full scale output to 
3 kHz. ±2% from 3 kHz to 5 kHz). Limited to ±7.25 Vpeak 
DFI outpu
  Contact closure to indicate: Loss of AC line and indication of various Status 
that can be remotely programmed.