Precision Digital Corporation ProtEX-MAX PD8-6100, Инструкция по эксплуатации

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ProtEX-MAX PD8-6100 Strain Gauge, Load Cell, and mV Meter
Instruction Manual
37
Calibrating the Meter with Strain
Gauge/Load Cell (
Cal
)
To scale the meter without a signal source, refer to
Scaling the Meter (
SCALE
) on page 37 .
The meter can be calibrated to display the process
variable in engineering units by applying the
appropriate input signal and following the calibration
procedure.
The use of a calibrated signal source is strongly
recommended to calibrate the meter.
Note: Inputs for the above example are:
Input 1: 0.00 mV; Display 1: 0.000 mV
Input 2: 150.00 mV; Display 2: 150.000 mV
Warm up the meter for at least 15 minutes before
performing calibration to ensure specified
accuracy.
Multi-Point Calibration & Scaling
The meter is set up at the factory for 2-point linear
calibration. The number of points for multi-point
calibration/scaling is set up in the
Advanced Features
menu. Up to 32 linearization points may be selected
for PV1 and up to 8 linearization points may be
selected for PV2. See
Multi-Point Linearization
(
Linear
) on page 52 for details.
Scaling the Meter (
SCALE
)
The strain gauge input (e.g. 0-100 mV) can be scaled
to display the process variable in engineering units.
A signal source is not needed to scale the meter;
simply program the inputs and corresponding display
values.
For instructions on how to program numeric values
see
Setting Numeric Values on page 34 .