Carbolite 201 Panduan Petunjuk Pengoperasian - Halaman 6

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Halaman Cetak
201 Controller
U
C
SER
ALIBRATION
The controller is calibrated for life at manufacture against known reference sources, but there
may be sensor errors or other system errors. User calibration allows compensation for such
errors, and the 201 allows for a user 2-point calibration. This setting is password protected to
avoid accidental alteration.
iP
Page to
, scroll to
password is entered, the display shows
FACt
(factory values, as manufactured) or
NOTE: before checking the calibration of the controller, or of the complete system, remember to
reset the 201 to factory calibration values by setting the
To enter a user calibration, scroll to each or the following parameters in turn and set the desired
values.
Pnt.L
low temperature for which an offset is to be entered
OFS.L
offset value for the low temperature
Pnt.H
high temperature for which an offset is to be entered
OFS.H
offset value for the high temperature
Example: the controller reads 3°C low at 400°C, and 5°C low at 1000°C. The parameter values
Pnt.L=400
should be
Negative or positive values can be entered: if the controller is reading high, negative offsets
would be appropriate.
Fig 4 gives a graphical representation of the 2-point calibration.
6
6
CAL.P
, and use Up
PASS
OFS.L=3
Pnt.H=1000
,
,
,
to alter the password. The password is
CAL
. Scroll to
and use
USEr
(user values). Change to
CAL.P
parameter to
OFS.H=5
.
3
. If the correct
or
to observe the setting
USEr
.
FACt
.
MC07