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Set Up and Calibration Procedures
Calibration
72 HercuLine™ 2000 Series Actuator - Installation, Operation and Maintenance Manual Revision 6
7/07
Step Operation Press Result
2 Calibrate Zero (0%) FUNCTION Upper Display = xxx
Lower Display =
ZERO
• Read meter connected to actuator output.
or key
• Adjust actuator output to a value equal to 0% output as read
from the DVM.
NOTE: Typically for a 4 mA output, the display will show a value
of approximately 382. A lower limit value is imposed on the zero
output. If the value is 357 or lower, the actuator will not allow you
to calibrate the zero output. The value must be larger than 357
for a valid calibration.
3
Calibrate Span
(100%)
FUNCTION Upper Display =
xxxx
Lower Display =
SPAN
• Read meter connected to actuator output.
or key
• Adjust actuator output to a value equal to 100% output as read
from the DVM.
• NOTE: Typically for a 20 mA output, the display will show a
value of approximately 1887.
4 FUNCTION
Calibration for zero and span output values are now stored.
Output calibration is complete.
Slidewire Emulation
The HercuLine
®
2001/2002 Actuator comes already calibrated from the factory. If it becomes necessary to
do a calibrationin the field, adjust the output using the procedure in
Table 28. Refer to Figure 26 for a
diagram to connect a signal source to the actuator input and a DVM to measure actuator output signal.
ATTENTION
For a slidewire emulation output calibration to be saved, you must complete the procedure.
The calibration will not be saved if you exit without completing the steps of the procedure.
To exit calibration mode, press DISPLAY or SETUP keys.