Watlow Series 945, 1/4 DIN Microprocessor-BasedAuto-tuning Control - Manual (Page 34)

Appendix
34
WATLOW Series 945 User's Manual
Calibration
Calibration Menu
Figure 41 -
Calibration Menu
CAL
tCL
tCH
tC
rLO
rHI
O U
5 U
4 A
20A
4tYP
O4LO
O4HI
O1LO
O1HI
rst
dISP
dFL
MEM
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No
Yes
Before attempting to calibrate,
make sure you have the proper
equipment called for in each procedure.
The Series 945 is calibrated and tested
before leaving the factory.
Input 0.00mV for low thermocouple input.
Input 50.00mV (16.035 for r, S or b units) for high thermocouple input.
Connect a "J" T/C compensator, with inputs shorted. T/C units only.
Connect the JIS RTD low resistance per model number.
Connect the JIS RTD high resistance per model number.
Set the voltage source to 0.000 volts.
Set the voltage source to 5.000 volts.
Set the current source to 4.00mA.
Set the current source to 20.00mA.
Press the UP/DOWN keys until Output 1 reads process low.
Press the UP/DOWN keys until Output 1 reads process high.
Factory select for Output 4 type.
Press the UP/DOWN keys until Output 4 reads process low.
Press the UP/DOWN keys until Output 4 reads process high.
Restores factory calibration values.
Factory use only.
Select US (rate, reset, proportional band in degrees or units,
°
F) or SI
(integral, derivative, proportional band in % of span,
°
C).
Factory use only.
YES to calibrate, No skips to display test.
з