MODEL 2224-1
Technical Manual
Section 4
Ludlum Measurements, Inc.
Page 4-4
January 2012
OL
: a multi-turn potentiometer that provides a means to vary the detector
current overload set point.
LIM
: a multi-turn potentiometer used to set the maximum
HV
limit to
2000 Vdc.
HV
: a multi-turn potentiometer used to adjust the high-voltage test
reading to correspond with the actual high-voltage output.
HV
must be
selected on the
RES
/
HV
toggle switch during adjustment.
LB
: a multi-turn potentiometer used to adjust the minimum battery
voltage level, corresponding to the low-battery indication on the meter
dial. The range selector switch must be in the
BAT
position during
adjustment.