HP 6236B Operating And Service Manual page 4

OPTION NO.
Input Power: 87-106Vac,47-63Hz,
100
single-phase.
Input Power: 191-233Vac,47-63Hz,
220
single-phase.
Input Power: 208-250Vac,47-63Hz,
240
single-phase.
One additional operating and service
910
manual shipped with the power supply.
1-13 Before the supply is shipped from the factory, an
internalline voltage selector switch is set and the proper
fuse installed for the line voltage specified on the order. A
label on the rear heatsink identifies this line voltage option.
——— CAUTION
Before applying power to the supply, make certain
that its line voltage selector switch (S3) is set for
the line voltage to be used. (See CAUTION notice
in paragraph 3-2 for additional information.)
Specifications apply to both models
unless otherwise indicated.
INPUT POWER:
Standard: 104-127Vac (120Vac nominal), 47-63Hz,
single-phase, 112W, 140VA (Other line voltage
options are listed in paragraph 1-12).
DC OUTPUT AND OVERLOAD PROTECTION:
0 to ±20V Outputs: Maximum rated output current is
0.5A. Short circuit output current is 0.55A ±5% and a
fixed current limit circuit limits the output of each supply
to this maximum at any output voltage setting. Unbal-
anced loads within current rating are permitted.
(Switching to the variable tracking ratio mode allows
the -20V output to be varied from less than -0.5V to
within ±10% of the voltage setting of the +20V output.)
Model 6236B
0 to +6V Output: Maximum rated output current is 2.5A
at 6V. The maximum available output current decreases
with the output voltage setting. A current foldback circuit
limits the output to 2.75A ±5% at 6 volts and, with
decreasing voltage, reduces the current limit linearly to 1A
±15% at zero volts (short circuited).
DESCRIPTION
———
Table 1-1. Specifications, Model 6236B and 6237B
NOTE
The user can convert an instrument from one line
voltage option to another by following the instructions
in paragraph 3-4.
1-14 ACCESSORIES
1-15 The accessories listed below may be ordered
from your local Hewlett-Packard field sales office either
with the power supply or separately. (Refer to the list at
the rear of the manual for addresses.)
HP PART NO.
14513A
14523A
Model 6237 B
0 to +18V Output: Maximum rated output current is
1.0A. Short circuit output current is 1.1A ±5% and a fixed
current limit circuit limits the output to this maximum at
any output voltage setting.
TRACKING ACCURACY:
The +20V and -20V outputs track within 1% with the
TRACKING RATIO control in the FIXED position.
LOAD EFFECT (Load Regulation):
All Outputs: Less than 0.01% plus 2mV for a full load
to no load change in output current.
SOURCE EFFECT (Line Regulation):
All Outputs: Less than 0.01% plus 2mV for any line
voltage change within rating.
PARD (Ripple and Noise):
All Outputs: Less than 0.35mV rms and 1.5mV p-p
(20 Hz to 20 MHz).
DRIFT (Stability):
All Outputs: Less than 0.1% plus 5mV (dc to 20Hz)
during 8 hours at constant line, load, and ambient after
an initial warm-up time of 30 minutes.
1-2
DESCRIPTION
Rack Mounting Kit for mounting one
3 1/2" high supply in a standard 19"
relay rack.
Rack Mounting Kit for mounting two
3 1/2" high supplies side by side in a
standard 19" relay rack.