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mode. In this mode the voltage of the negative output can be set
lower than that of the positive output. The tracking ratio control
allows the negative supply's output to be set to any value
between a maximum that is within ±5% of the positive supply's
output and a minimum that is less than 0.5 volts. Once a ratio is
established by the tracking ratio control, the ratio of the positive
output voltage to the negative output voltage remains constant
as the ±20V voltage control varies the 0 to +20V output over its
range.
The front panel also contains a line switch, three overload
indicators for +6V output, +20V output, and -20V output, a
voltmeter and an ammeter, and three push-button meter
switches. The push buttons select one of the supply's three
outputs for display. The voltmeter and ammeter always moni-
tor any one supply simultaneously. In addition to the standard
115 Vac ± 10% 47 to 63 Hz input, two other line voltage options
AC INPUT
OEM:
115 Vac ± 10%, 47-63 Hz, 115 VA, 84 W
OE9:
100 Vac ± 10%, 47-63 Hz, 115 VA, 84 W
OE3:
230 Vac ± 10%, 47-63 Hz, 115 VA, 84 W
DC OUTPUT and OVERLOAD PROTECTION
0 to ±20 V Outputs: Maximum rated output current is 0.5 A.
Short circuit output current is 0.55 A ± 5% and a fixed cur-
rent limit circuit limits the output of each supply to this maxi-
mum at any output voltage setting. Unbalanced loads within
current rating are permitted.
0 to +6 V Output: Maximum rated output current is 2.5 A at
6 V. The maximum available output current decreases with
the output voltage setting. A current foldback circuit limits
the output to 2.75 A ± 5% at 6 volts and, with decreasing
voltage, reduces the current limit linearly to 1 A ± 15% at
zero volts (short circuited).
TRACKING ACCURACY
The +20 V and -20 V outputs track within 1% with the
TRACKING ratio control in the Fixed position. (In variable
tracking ratio mode, the negative tracking output can be
adjusted from less than 0.5 V to within ±5% of the setting of
the positive output.)
LOAD REGULATION
All Outputs: Less than 0.01% plus 2 mV for a full load to
no load change in output current.
LINE REGULATION
All Outputs:
Less than 0.01% plus 2 mV for any line volt-
age change within rating.
PARD (Ripple and Noise)
All Outputs:
Less than 0.35 mV rms/1.5 mV p-p (20 Hz-20
MHz).
Common Mode Current (CMI): Less than 1 μA for all
outputs (20 Hz-20 MHz).
are available for nominal inputs of 100 and 230 Vac. The sup-
ply is furnished with a detachable 3-wire grounding type line
cord. The ac line fuse is in an extractor type fuseholder on the
rear heat sink.
LINE FUSE
The line fuse is located by the ac line receptacle. Check the
rating of the line fuse and replace it with the correct fuse if
necessary as indicated below. These are slow-blow fuses.
Line Voltage
100/115 Vac
230 Vac
SPECIFICATIONS
Table 1 lists detailed specifications for the power supply.
Table 1. Specifications
OPERATING TEMPERATURE RANGE
o
0 to 40
put current is derated linearly to 50% at 55
temperature.
TEMPERATURE COEFFICIENT
All Outputs:
STABILITY (OUTPUT DRIFT)
All Outputs:
LOAD TRANSIENT RESPONSE TIME
All Outputs:
OUTPUT VOLTAGE OVERSHOOT
All Outputs:
METER ACCURACY:
METER RESOLUTION
All Output:
DIMENSIONS
212.3 mmW x 88.1 mmH x 269.2 mmD
(8.354 inW x 3.469 inH x 10.591 inD)
WEIGHT:
1-5
Fuse
1.6 A
1.0 A
C for full rated output. At higher temperatures, out-
Less than 0.02% plus 1 mV voltage change
o
per
C over the operating range from 0 to 40
after 30 minutes warm-up.
Less than 0.1% plus 5 mV (dc to 20 Hz) dur-
ing 8 hours at constant line, load and ambient
after an initial warm-up time of 30 minutes.
Less than 50 μsec for output recovery to
within 15 mV of nominal output voltage
following a load change from full load to half
load, or vice versa.
During turn-on or turn-off of ac power, output
plus overshoot will not exceed 1 V if the out-
put control is set for less than 1 V. If the con-
trol is set for 1 V or higher, there is no
overshoot.
±(0.5% of output + 2 counts) at
o
o
25
C±5
C
Voltage
10 mV
Current 10 mA
3.8 kg(8.4 lbs) net, 5.1 kg(11.3 lbs) shipping
Agilent Part No.
2110-0918
2110-0599
o
C maximum
o
C
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