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718-461-7000
   BHK-MG OUTPUT CHARACTERISTICS
SPECIFICATION (1) RATING DESCRIPTION CONDITION
Type of Stabilizer   Linear/automatic crossover Voltage/Current
Adjustment
Range
Voltage 0 to 100% EO max Analog or digital, 12 bit
Current
(Source)
200W Hi Scale: 0 to 100% IO max
200W Lo Scale: 0 to 100% (IO max/10)
40W: 0 to 100% IO max
Use menu program to change current scale.
Current
(Sink)
200W: 50% IO max
40W: 100% IO max
Fixed value, not calibrated
Programming
Resolution
Voltage 0.025% EO max Current measurement requires a calibrated shunt.
Current 0.025% IO max
Programming
Accuracy
Voltage <0.025% EO max  
Current <0.05% IO max 200W: Both current scales
Data Readback
Accuracy
Voltage <0.05% EO max  
Current (200W, 40W): <0.05% IO max For IO of ~9% to 100% of IOMax (7)
Current (200W): <0.02% IO max For IO of 0 to <9% of IOMax (7)
Current (40W): <0.01% IO max For IO of 0 to <9% of IOMax (7)
Source Effect Voltage <0.001% EO max Input voltage 105-125/210-250V a-c
Current <0.002% IO max
Load Effect Voltage <0.005% EO max No load - full load
Current <0.015% IO max Short - full load
Temperature
Effect
Voltage <0.01% EO max Per C (0 to 50C)
Current <0.02% IO max
Time
Effect
Voltage <0.01% EO max 0.5 - 8.5 hours
Current <0.02% IO max (2)
Ripple
(rms/p-p)
Voltage:            
Fast Mode (3)

200W: 0.002%/0.02% EO max
Minus output terminal connected to GND.
  Voltage: Nominal load
  Current: Short with calibrated shunt.

With minus terminal grounded, common mode currnt does not flow through either the load or the current sensing resistor.
Slow Mode (3) 200W: 0.001%/0.01% EO max
40W: 0.004%/0.04% EO max
Current:            
Fast Mode (3)

200W: 0.02%/0.2% IO max
Slow Mode (3) 200W: 0.01%/0.1% IO max
40W: 0.02%/0.2% IO max
Programming
Rise Time (R) /
Fall Time (F)
Voltage:            
Fast Mode (3)

180μS(R) / 180μS(F)
Load ≥EO max/IO max,
Vout between zero and EO max,
measured between 10% and 90% of EO max
Slow Mode (3) 200W: 90mS(R) / 175mS(F)
40W: 60mS(R) / 75mS(F)
Current            
Fast Mode (3)

200μS(R) / 200μS(F) (4)
Load ≤EO max/IO max,
Iout between zero and IO max,
measured between 10% and 90% of IO max
Slow Mode (3) 200W: 90mS(R) / 175mS(F)
40W: 60mS(R) / 75mS(F)
Transient
Recovery Time
for Load Change
(Amplitude/
time constant)
Voltage:            
Fast Mode (3)

5% EO max / 100μS
Vout = 400 Vdc and load switched between infinity and 400/IO max.
Slow Mode (3) 0.5% EO max / 100μS
Current            
Fast Mode (3)

50% IO max / 100μS
Iout = IO max and load switched between 0.1 x EO max/IO max and ≤ EO max/IO max.
Small Signal
3dB Bandwidth
Voltage 2.5KHz (5) For maximum load (EO max / IO max) with a d-c bias of 200V set by the keypad and an analog input sinusoid = 0.2V rms measured at the analog input terminals.
Current 2.3KHz (6)
Slew Rate of
Ouput Voltage
(Fast Mode (3))
Voltage >0.015 x EO max V/μSec  
Current >0.03 x EO max V/μSec High Range
Overshoot None Turn ON/OFF
Remote Sensing Range 0.5V d-c per lead  
d-c Isolation
Voltage
300V, 500V,
1000V models
1KV d-c 0r p-p plus
max. output voltage
Between each output terminal and chassis.
2000V models 0.5KV d-c 0r p-p plus
max. output voltage
Enable/Disable
Output Power
Local Front panel keypad 200W: Acts on digital programming only;
40W: Versatile output on/off port (digital/relay contacts) acts on both analog and digital programming.
Remote IEEE 488 (GPIB) bus
Output Display Local 2 x 16 character
alphanumeric backlit LCD
 
Series Connection Automatic or master-slave
operation, limited by the
d-c isoaltion limit voltage
For slave unit: use analog programming only.
Parallel Connection Automatic or master-slave
operation
For slave unit: use analog programming only.
NOTES:
(1) Specifications apply to all models except where otherwise indicated.
(2) 0.05% for BHK 300-0.6MG.
(3) Fast Mode: internal output capacitor not connected.
Slow Mode (default): internal output capacitor connected.
(4) BHK 2000-20MG (Voltage, Fast Mode): 275mS(R)/275mS (F)
(5) For maximum load (EO max / IO max) with a d-c bias of 200V set by the keypad and an analog input sinusoid = 0.2V rms measured at the analog input terminals.
(6) For maximum load (EO max / IO max) with a d-c current bias = 200 x IO max / EO max set by the keypad and an analog input sinusoid = 0.2V rms measured at the analog input terminals.
(7) Measurement of a decreasing output current of the power supply that falls below 8.98% 0.1% of IOMax (or IOMax/10 for 200W, Low Sacle) is automatically measured with increased resolution/accuracy by a factor of 10 until the current rises above 9.69% 0.1% of IOMax (or IOMax/10 for 200W, Low Sacle).

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KEPCO, INC. • 131-38 SANFORD AVENUE • FLUSHING, NY. 11355 U.S.A.
TEL (718) 461-7000 • FAX (718) 767-1102
www.kepcopower.com • email: hq@kepcopower.com