Calibration parameters, Calibration, Calibration menu – Watlow Series 942 User Manual
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WATLOW Series 942 User's Manual
55
Appendix
Calibration
Calibration Menu
YES to calibrate, No skips to display test.
Input 0.00mV for low thermocouple input.
Input 50.00mV (or 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 (prop. band in
°
or units, rate, reset,
°
F) or
SI (prop. band in % of span, integral, derivative,
°
C).
Factory use only.
NOTE:
The Output 4 rELY
parameter is for
alarms or events,
and the PrOC
parameter is for
retransmit output.
CAL
tCL
tCH
tC
rLO
rHI
0 U
5 U
4 A
20A
O1LO
O1HI
4tYP
O4LO
O4HI
rst
dISP
dFL
MEM
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Figure 46 -
Calibration Menu