ILX Lightwave LDT-5525 User Manual page 39

SYMPTOM
Unable to switch DISPLAY,
MODE, SENSOR CAL, or
PARAMETER modes
Output goes off
intermittently
R Mode set point is not
saved
CORRECTIVE ACTIONS
1. The unit may be in
measurement calibration mode
(see Chapter 3). Press the
OUTPUT switch to abort this
mode.
1. Check that the AC power
cord connection is secure.
Power-line drop-outs may reset
the unit and when power is
restored, the output will be off.
2. Check the TE module
connections. A high impedance
on the TE load may cause the
output to exceed the compliance
voltage momentarily, thus
shutting the output off.
1. The R mode set point value
is not independent from the
Tmode set point value.
If the control mode is changed
from R mode to T mode, the R
set value will change to a value
which corresponds to the
temperature, based on C1 and
C2.
3-9