1
ORTEC MODEL 4002P
PORTABLE POWER SUPPLY
1. DESCRIPTION
1.1. GENERAL
The ORTEC Model 4002P Portable Power Supply
is ideally suited for providing power to preamplifiers,
or to a NIM module in a remot e location. It is an
effective solution when the additional power, size, or
cost of a standard NIM bin is inconvenient.
DC power is provided by the Model 4002P for four
preamplifiers through standard 9-pin connectors on
the rear panel. These connectors deliver ±12 and
±24 V dc, and are compatible with ORTEC standard
preamplifier power cables, as well as those of most
NIM manufacturers. The Model 4002P can supply
power for up to 12 preamplifiers by adding an
optional Model 4002P-C1 Preamp Power Fan-Out
Cable to each connector. The fan-out cable converts
a single preamp power output connector to three
separate preamp power output connectors.
A standard NIM bin power connector is incorporated
for supplying ±12 V dc and ±24 V dc to a NIM
module. Connection between the 4002P and the
NIM module is made with the ORTEC Model 401-C3
Module Extender Cable, which can be ordered as an
accessory. The output power is sufficient to operate
a four-wide NIM module and four preamplifiers.
Designed for international use, the 4002P Portable
Power Supply can accommodate input voltages of
100, 120, 220, and 240 V ac at 47 to 63 Hz. A
connector block on the rear panel is used to change
and display the selec t ed input voltage. Also
incorporated in this connector block are a fuse
holder and the input power cord connector. The
4002P uses an international standard IEC power
connec tor to permit the use of power cords and
plugs that meet local electrical standards.
The Model 4002P has maximum output current
ratings of 1 A on +12 V, 1 A on
!
12 V, 0.5 A on
+24 V, and 0.5 A on
!
24 V.
There are three levels of protection against
overload. A fuse on the ac power connec tor limits
the input current . All dc outputs include a current
foldbac k c ircuit to limit the output current to
nominally 150% of the rated value. This feature
provides short-circuit and overload protection.
Recovery is automatic after removal of the overload
condition. Test points are conveniently located on
the front panel to allow monitoring the status of the
dc outputs. A temperature warning light on the front
panel turns on when the heat sink temperature rises
above 82
E
C. When the temperature of the heat sink
exceeds 95
E
C, the power supply is automatically
turned off. Recovery is automatic when the load is
reduced and the temperature decreases t o a s afe
value.
2. SPECIFICATIONS
2.1. PERFORMANCE
INPUT AC VOLTAGE
The primary voltage
selection card and indicator located in the AC
POWER connector assembly permit operation with
100 V, 120 V, 220 V, or 240 V nominal input
voltages. lnput voltage ranges accommodated on
each setting are:
Nominal
Voltage (ac)
Regulation
Range (V ac)
100
88–110
120
103–129
220
191–239
240
206–258
FREQUENCY RANGE
Operating range for ac
input voltage frequency is 47–63 Hz.
