Barber-Colman 7EM Instruction Manual - page 21
21
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The instrument is set for heating/cooling and an
UNDERRANGE is detected, then OUT 1 turns ON
and OUT 2 turns OFF.
Error messages
On powerup, the instrument performs a self-diagnostic
test. When an error is detected, the lower display shows
an “Err” indication while the upper display shows the
code of the detected error.
Error list
100
EEPROM write error.
150
CPU error.
200
Attempt to write to protected memory.
201 - 2xx
Configuration parameter error. The two
least significant digits show the number of
the wrong parameter (ex. 209 Err indicates
an Error in parameter P9).
301
RTD input calibration error.
305
TC input calibration error.
307
RJ input calibration error.
310
CT input calibration error.
400
Control parameter error.
500
Auto-zero error.
502
RJ error.
510
General error during calibration procedure.
Dealing with error messages
1) When a configuration parameter error is detected,
repeat the configuration procedure of that specific
parameter.
2) If an error 400 is detected, simultaneously press the
s
and
t
keys (see Loading default operating
parameters) to load the default parameters and then
repeat the control parameter setup.
3) For all other errors, contact your Service
Representative.
Default Parameters
Loading default operating parameters
The control parameters can be loaded with
predetermined default values. These are the settings
loaded into the instrument prior to shipment from the
factory. To load the default values proceed as follows:
a)Close switch V2 (see configuration procedure Figure 2).
b) Autotuning (Smart AT) must be disabled.
c)Hold down the
t
key and press the
s
key; the display
will show:
e)Within 10 seconds press the
s
key; the display will show:
g) Press the FUNC key; the display will show:
This indicates that the loading procedure has been
initiated. After about 3 seconds the loading procedure
is complete and the instrument reverts to the “normal
display mode.” The following is a list of the default
operating parameters loaded during the procedure: