HALF
AN ISO 9001 COMPANY
FULL
146-1923
No matter how you rack it, we deliver the power.
KEPCO’S HIGH VOLTAGE BHK-MG SERIES
BHK-MG MODEL TABLE
MAXIMUM OUTPUT IMPEDANCE OUTPUT IMPEDANCE
d-c OUTPUT OUTPUT SLOW MODE STRAPPING FAST MODE STRAPPING
MODEL RANGE POWER VOLTAGE MODE CURRENT MODE VOLTAGE MODE CURRENT MODE
VOLTS mA
(1)
(WATTS) SERIES R SERIES L SHUNT R SHUNT C SERIES R SERIES L SHUNT R SHUNT C
40 WATT HALF RACK
BHK 300-130MG 0-300 0-130 39 0.115Ω 1.5mH 15.4MΩ 6.6µF 0.115Ω 2mH 15.4MΩ 9nF
BHK 500-80MG 0-500 0-80 40 0.313Ω 2.5mH 41.7MΩ 3µF 0.313Ω 3.6mH 41.7MΩ 8nF
BHK 1000-40MG 0-1000 0-40 40 1.25Ω 5mH 166MΩ .94µF 1.25Ω 6mH 166MΩ 2nF
BHK 2000-20MG 0-2000 0-20 40 5Ω 32mH 666.7MΩ 0.2µF 5Ω 35mH 666.7MΩ 1nF
200 WATT FULL RACK
BHK 300-0.6MG 0-300 0-600 180 0.025Ω 1.2mH 3.33MΩ 20µF 0.025Ω 2mH 3.33MΩ .013µF
0-60 18 33.3MΩ 33.3MΩ .008µF
BHK 500-0.4MG 0-500 0-400 200 0.0625Ω 2mH 8.3MΩ 10µF 0.0625Ω 3.6mH 8.3MΩ .012µF
0-40 20 83MΩ 83MΩ .007µF
BHK 1000-0.2MG 0-1000 0-200 200 0.25Ω 4mH 33MΩ 4µF 0.25Ω 6mH 33MΩ .005µF
0-20 20 333MΩ 333MΩ .003µF
BHK 2000-0.1MG 0-2000 0-100 200 1Ω 30mH 133MΩ 2µF 1Ω 35mH 133MΩ .002µF
0-10 20 1333MΩ 1333MΩ .001µF
BHK-MG models are designed for
bench or rack mount use with both
front and rear output terminals. Two
operating modes are available:
conventionally filtered (slow mode) for
use as a fixed or slowly varied voltage
source. In this mode, the output
capacitor provides excellent energy
storage to support transient loads. A
fast mode is also available. In fast mode,
the output capacitor is disconnected and
the power supply depends on its fastresponding feedback loop to suppress
ripple and noise. Fast mode is ideal
for operation as a current source or as
a rapidly programmed voltage source
where the energy storage of a conventional output capacitor would inhibit
the output voltage’s agility.
Control is either analog or digital.
Analog control is based on the idea of
an operational amplifier in which the
power supply output is programmable
from zero to maximum with a 0-10V
signal. Digital control is IEEE 488.2
using a built-in interface that
supports SCPI. Resolution is 12 bits
and controls both voltage and current.
A front panel keypad provides local
control. Both digital control (local or
remote) and analog control can be
inputted simultaneously.
The display is an alphanumeric
two-line LCD which provides both
setting values and actual voltage and
current readings.
BHK-MG use a solid state FETbased high voltage output stage.
BHK-MG comply with EN61010-1
safety standard for measurement
control and laboratory use equipment
and carry the CE mark.
(1) The full rack BHK-MG have 10:1 current ranging. By command selection from the keypad or GPIB, the full 12-bit control resolution is available across 0-10% of the current rating.
Data subject to change without notice. ©2003 KEPCO, INC. Litho in USA
SPECIFICATIONS RATING/DESCRIPTION CONDITION
BHK-MG GENERAL (ENVIRONMENTAL) SPECIFICATIONS
SPECIFICATIONS RATING/DESCRIPTION CONDITION
Temperature Operating 0° to +50°C
Storage -20° to +75°C
Humidity 0 to 95% RH Non condensing
operating & storage
Shock 20g, 11msec ±50% Non operating, 3-axes
half sine 3 shocks each axis
Vibration 5-10Hz 10mm Non operating, 3-axes
double amplitude 1 hour each axis
Cooling Built-in fan, exhaust air to rear
Remote Error Sensing Provisions for 4-terminal (Kelvin)
(Default state is local sensing) connections to load
BHK-MG PHYSICAL CHARACTERISTICS
Dimensions
Weight
a-c source
connections
d-c output
terminals
Control
Digital display front panel
Output display
English
Metric
English
Metric
Front
Rear
Front
Rear
Local
Remote
5.22˝ x 8.35˝ x 15.9˝
133 x 212 x 404mm
26 lbs.
12 Kg
5.22˝ x 19˝ x 15˝
133 x 482.6 x 381mm
45 lbs.
20 Kg
Circuit breaker, 2-pole
Detachable IEC 3-wire type connector
interlock switch (200W only)
Jacks (2)
Terminal blocks (11 positions)
Voltage, current, mode, status, menu, program 2 x 16 character alphanumeric LCD, LED backlight
Interlock switch (200W)/proximity detector (40W)
protects rear connections
±Output
±Output, ±sense, ground,
grounding network, internal capacitor (-)
Excludes handles, feet and connectors
Unpacked
Digital control using front panel keypad
Digital control using rear panel IEEE 488 bus (24 pin female connector).
Analog control using two rear panel terminal strips (10 positions each) for voltage and current.
Output voltage is displayed with two decimals for 300 and 500V models and one decimal for 1000 and
2000V models. Output current for 200W (high current scale) and 40W (300V model) is displayed with
two decimals. 200W (low current scale) and all other 40W models are displayed with three decimals.
40W 200W
Kepco’s BHK-MG are high voltage
linear voltage-current stabilizers offered
in two sizes: a 40 watt half-rack design
and a 200 watt full-rack power supply.
Outputs range from 0-300 volts to
0-2000 volts. Both digital and analog
programming control is featured.
BHK-MG are CE marked per the Low
Voltage Directive (LVD), EN61010-1
and the EMC Directives.
FEATURES
• Two sizes: half-rack 40 watts,
full-rack 200 watts.
• FET output stage.
• Conventional filtering or fast response.
• Fast analog programming mode.
• Rapid recovery current mode in
fast mode.
• Local control from panel-mounted keypad.
• Built-in GPIB, IEEE 488.2, 12 bits.
• Support for SCPI language.
• 2-line 16 character LCD display.
• Full read back of voltage and current
on the bus.
• Increased resolution and accuracy (x10)
for reading small current.
• Versatile output on/off port (40W only).
• Extensive protection circuitry.
AN ISO 9001 COMPANY
KEPCO, INC. • 131-38 Sanford Avenue • Flushing, NY 11352 USA • Tel: (718) 461-7000
Fax: (718) 767-1102 • Email: hq@kepcopower.com • www.kepcopower.com/bhkmg.htm
115/230V a-c
105-125/210-250V a-c
50/60Hz
47-63Hz
1350V a-c/1 min.
1950V d-c/1 min.
2250V d-c/1 min.
2800V d-c/1 min.
100 mohms max.
BHK-MG INPUT CHARACTERISTICS
a-c Voltage
Frequency
Current
Withstand
Voltage
Chassis Connection
to Ground Resistance
Leakage Current
Single phase,
switch selectable
At nominal
output power
Between shorted inputs
and chassis
Between shorted
outputs and chassis
Between ground input
connection and
chassis @ 30A
nominal
range
nominal
range
115V a-c
230V a-c
(All models)
300V models
500V models
1000V models
2000V models
SPECIFICATIONS
RATING/DESCRIPTION
40W 200W
CONDITION
25 µA rms/100 µA p-p, for
115V a-c input voltage(chassis to earth-ground)
1A
0.6A
<4.0A a-c
<2.1A a-c
SPECIFICATIONS RATING/DESCRIPTION CONDITION
Type of Stabilizer Linear/automatic crossover Voltage/Current
Adjustment Voltage 0 to 100% Eomax Analog or digital, 12 bit
Range
Current 0 to 100% Iomax Use menu program
(Source)
0 to 10% Iomax
to
change
(200W models only)
current scale
Current
50% Iomax (200W)
Fixed value
(Sink)
100% Iomax (40W)
not calibrated
Programming
Voltage
0.025%
Eomax Current measurement
Resolution
Current 0.025% Iomax
requires a
calibrated shunt
Programming
Voltage <0.025% Eomax
Accuracy
Current <0.05% Iomax Both current scales
(200W models)
Data Readback
Voltage <0.05% Eomax
Accuracy
Current <0.05% Iomax Both current scales
(200W models)
Source Effect
Voltage <0.001% Eomax
Input voltage
Current <0.002% Iomax
105-125/210-250V a-c
Load Effect
Voltage <0.005% Eomax
no load-full load
Current <0.015% Iomax short-full load
Temperature
Voltage <0.01% Eomax
Per °C
Effect
Current <0.02% Iomax
(0 to 50°C)
Time Effect
Voltage <0.01% Eomax
0.5-8.5 hours
Current <0.02% Iomax
(5)
Ripple/Noise
Fast Mode
0.002% / 0.02%
Eomax
See Note 6
Slow Mode
0.001% / 0.01% E
o
max
Programming Rise/
Voltage 180 µsec
Fall Time
(Fast mode)
Current 200 µsec
See Note 1
Transient
Voltage Fast Mode
1 m
sec
Recovery
Slow Mode
15 msec See Note 2
Time for
Load Change
Current Fast Mode
500 µsec
Small Signal
Voltage
2.5KHz See Note 3
3dB Bandwidth
Current
2.3KHz See Note 4
Slew Rate of the
Voltage
>0.015 x Eomax V/µsec
Output Voltage
>0.03 x Eomax V/µsec High range
(Fast mode)
Current
Overshoot None Turn ON/OFF
Remote Sensing Range 0.5V d-c per lead
300V models
d-c
500V models
1KV d-c or p-p plus
Between each
Isolation
1000V models
max. output voltage
output terminal
Voltage
2000V models
0.5KV d-c or p-p plus
and chassis
max. output voltage
Enable/Disable
Local Front panel keypad
See Note 7
Output Power
Remote IEEE 488 (GPIB) bus
Output Display Local 2 x 16 character alphanumeric backlit LCD
Series Connection Automatic or master-slave For slave unit, use
operation, limited by the analog programming
d-c isolation limit voltage only
Parallel Connection Automatic or master-slave For slave unit, use
operation analog programming
only
Note 1: Load = Eo max / Io max. V
out
between 0-Eomax.
The programming time is measured between 10% and 90% of Eomax or Iomax.
Note 2: Voltage mode, load switched from open circuit to Io max. at Eo = 200V. Current
mode, load switched from short circuit to 200V at Io max.
Note 3: For maximum load (Eomax / Iomax) with a d-c bias of 200V set by the keypad
and an analog input sinusoid = 0.2V r ms measured at the analog input terminals.
Note 4: For maximum load (Eomax / Iomax) with a d-c current bias = 200 x Io max / E
o
max set by the keypad and an analog input sinusoid = 0.2V rms measured at the
analog input terminals.
Note 5: 0.05% for BHK 300-0.6MG.
Note 6: With minus terminal grounded, common mode current does not flow through either
the load or the current sensing resistor.
Note 7: 200W models: Acts on digital programming only; 40W models: Versatile output on/off
port (digital/relay contacts) acts on both analog and digital programming.
SIDE VIEW
FRONT VIEW
BHK-MG HALF-RACK MODELS
BHK-MG FULL-RACK MODELS
TOP VIEW
SIDE VIEW
REAR VIEW
8.120
(206.25)
4.860
(123.44)
.250
(6.35)
.112 (2.84)
17 (431.80)
15.90 (403.86)
.250 (6.35)
TOP VIEW
REAR VIEW
Rear
Front
Rear
Front
OUTLINE DIMENSIONAL DRAWINGS
Fractional dimensions in light face type are in inches,
dimensions in bold face type are in millimeters.
Tolerance: ± 1/64" (0.4) between mounting holes,
± 1/32" (0.8) other dimensions
FRONT VIEW
5.218
(132.54)
8.344 (211.94)
AN ISO 9001 COMPANY
KEPCO, INC. • 131-38 Sanford Avenue • Flushing, NY 11352 USA • Tel: (718) 461-7000
Fax: (718) 767-1102 • Email: hq@kepcopower.com • www.kepcopower.com/bhkmg.htm
BHK-MG OUTPUT CHARACTERISTICS
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