Calibration Parameters; Cto; H And L - Fluke 7312 User Manual

Triple point of water maintenance bath
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instrument interprets either a carriage return or a linefeed as a command termi-
nation during reception.
The termination parameter is indicated with,
Press the "SET" button to access the termination setting.
EOS=Cr
Use the "UP" or "DOWN" button to change the selection.
EOS=LF
Use the "SET" button to save the new selection.
9.14

Calibration Parameters

The operator of the bath controller has access to a number of the bath calibra-
tion constants namely CTO, H, and L. These values are set at the factory and
must not be altered. The correct values are important to the accuracy and
proper and safe operation of the bath. These parameters should not be adjusted
except in the event the controller's memory fails. The user may then 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,
Press the "SET" button five times to enter the menu.
9.14.1

CTO

Parameter CTO sets the calibration of the over-temperature cutout. This param-
eter is not adjustable by software but is adjusted with an internal potentiometer.
For the 7312 bath this parameter should read 160.
9.14.2

H and L

These parameters set the upper and lower set-point limits of the bath. DO NOT
change the values of these parameters from the factory set values. To do so may
IEEE-488 termination
EOS
Present IEEE-488 termination
New termination selection
CAL
Calibration parameters menu
9 Controller Operation
Calibration Parameters
55

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