Model 2363
Technical Manual
Section 4
Ludlum Measurements, Inc.
Page 4-3
January 2015
the only audible tones in the
˝
N
˝
channel selection, and gamma pulse
tones are the only audible tones in the
˝
G
˝
channel selection.
SWITCH 2
TONE MODE
ON
DUAL
OFF
SINGLE
Dipswitch 3
: This switch, when placed in the
ON
position, disables auto-
dump to the RS-232 port. (See page 7-6, command SM, for more
information on auto-dump.)
Remove the instrument cover to access the following calibration
potentiometers.
MTR
: a multi-turn potentiometer used to calibrate the meter to the cpm
reading
NHV
: a multi-turn potentiometer used to adjust the neutron high voltage
from 500 to 1000 Vdc
NTHR
: a multi-turn potentiometer used to adjust the neutron pulse
threshold from 5 to 100 mV
