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8 Controller Operation
The mode may be changed using “UP” or “DOWN” and pressing “SET”.
New linefeed setting
8.15 Calibration Parameters
The operator of the bath controller has access to a number of the bath calibra-
tion constants namely CTO, C0, CG, H, L, and HGbt. These values are set at
the factory and must not be altered. The correct values are important to the ac-
curacy and proper and safe operation of the bath. These parameters should not
be adjusted. In the event the controller’s memory fails, the user may restore
these values to the factory settings. A list of these constants and their settings
are supplied to the user on the Report of Test with the manual.
Caution: DO NOT change the values of the bath calibration constants
from the factory set values. The correct setting of these parameters is im-
portant to the safety and proper operation of the bath.
The calibration parameters menu is indicated by,
Calibration parameters menu
Press “SET” five times to enter the menu.
8.15.1 CTO
Parameter CTO sets the calibration of the over-temperature cutout. This is not
adjustable by software but is adjusted with an internal potentiometer. This pa-
rameter is set at the factory.
8.15.2 CO and CG
These parameters calibrate the accuracy of the bath set-point. These are pro-
grammed at the factory when the bath is calibrated. Do not alter the value of
these parameters. If the user desires to calibrate the bath for improved accuracy,
calibrate R0 and ALPHA according to the procedure given in Section 10, Cali-
bration Procedure.
8.15.3 H and L
These parameters set the upper and lower set-point limits of the bath.
Note: A high limit (H) setting below the flash point of the fluid in the bath is
highly recommended.
LF= OFF
CAL