Cutout - Fluke 6102 User Manual

6102 Micro-Bath User's Guide

Cutout

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The proportional band width is set at the factory to about 5.0°C. The propor tional band
width may be altered by the user if he desires to optimize the con trol characteristics
for a particular application.
The proportional band width is easily adjusted from the front panel. The width may
be set to discrete values in degrees C or F depending on the selected units. The
proportional band adjustment is be accessed within the secondary menu. Press "SET"
and "EXIT" to enter the secondary menu and show the heater power. Then press
"SET" to access the proportional band.
+ Access heater power in secondary menu
Heater power in percent
12.0 P
Access proportional band
Flashes "ProP" and the setting
ProP
Proportional band setting
5.0
To change the proportional band press "UP" or "DOWN".
New proportional band setting
4.0
To store the new setting press "SET". Press "EXIT" to continue without storing the
new value.
Accept the new proportional band setting
Cutout
As a protection against a hardware fault or user error, the calibrator is equipped with
an adjustable cutout device that shuts off power to the heater if the tank temperature
exceeds a set value. This protects the instrument and probes from excessive
temperatures. The cutout temperature is programmable by the opera tor from the front
panel of the controller.
The cutout for the 6102 Bath is defaulted to 225°C.
If the cutout is activated because of excessive temperatures, the heater shuts off and
the instrument cools. The tank cools until it reaches a few degrees below the cutout
set-point temperature. At this point, the action of the cutout is deter mined by the
setting of the cutout mode parameter. The cutout has two modes – automatic reset
or manual reset. If the mode is set to automatic, the cutout auto matically resets itself
when the temperature falls below the reset temperature al lowing the tank to heat up
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