Model 2363
Technical Manual
Section 2
Ludlum Measurements, Inc.
Page 2-2
January 2015
counterclockwise a quarter of a turn. Install two
˝
D
˝
size batteries in the
compartment.
Note the (+) and (-) marks inside the battery door. Match the battery polarity
to these marks. Close the battery box lid and push down and turn the
quarter-turn thumb screw clockwise a quarter of a turn.
Note:
The center post of a flashlight battery is positive. The batteries
are placed in the battery compartment in opposite directions.
Connecting a Detector to the Instrument
Caution!
The detector operating voltage (
HV
) is supplied to the detector
via the detector input connector. A mild electric shock may
occur if you make contact with the center pin of the input
connector. Switch the Model 2363 to the
OFF
position before
connecting or disconnecting the cable or detector.
Connect one end of a detector cable to the detector by firmly pushing the
connectors together while twisting clockwise a quarter of a turn. Repeat the
process in the same manner with the other end of the cable and in the
instrument.
Battery Test
The batteries should be checked each time the instrument is turned on. Move
the range selector switch to the
BAT
position. Verify that all three alarm LEDs
on the front panel turn on briefly. The LCD should go through an
initialization sequence displaying
˝
88:8.8:8.8
˝,
then the current sample
number, and finally
˝
0
˝
. Ensure that the meter needle deflects to the battery
check portion on the meter scale. If the meter does not respond, check to see
if the batteries have been correctly installed. Replace the batteries if necessary.
