Industrial Dual-Block Calibrator
General Operation
7
General Operation
Change Display Units
The temperature units are factory defaulted to Celsius. To change to Fahrenheit or back to Celsius:
1. Push
SET
and
UP
simultaneously. The temperature display changes units.
Or
1. Push
SET
three times to store the changes.
Un= C
2. Push
UP
or
DOWN
to change units.
3. Push
SET
to store the changes.
Set the Temperature
explains how to set the calibrator temperature set-point with the front panel
keys. Briefly, the procedure is:
1. Push
SET
twice to access the set-point value.
2. Push
UP
or
DOWN
to change the set-point value.
3. Push
SET
to store the new set-point.
4. Push
EXIT
to return to the temperature display.
When the set-point temperature changes, the heater switches on or off to raise or lower the
temperature. The well temperature gradually changes until it reaches the set-point temperature. The
well can require 5 minutes to 10 minutes to reach the set-point
,
depending on the span. Another 5
minutes to 10 minutes is required to stabilize within
±
0.1
°
C of the set-point. Ultimate stability can take
15 minutes to 20 minutes more of stabilization time.
Controller Operation
Use the front panel to monitor the well temperature, set the temperature set-point in degrees C or F,
monitor the heater output power, adjust the controller proportional band, and program the calibration
parameters, operating parameters, and serial interface configuration. Operation of the functions and
parameters are shown in the flowchart in Figure
. Copy this chart for reference.
Note
When you use one set of control buttons, the other set is disabled.
Well Temperature
The display allows direct viewing of the actual well temperature. This temperature value is what is
normally shown on the display. The temperature units are displayed at the right. For example,
100.0 C
Well temperature in degrees Celsius
Push
Exit
to access the temperature display function from any function.
