GE MN-ValVue-v2-8-IOM Wartungshandbuch Seite 403

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Calibration Tools
Advanced Setup
Calibration Tools
Calibration Tools
ValVue 12400 allows you to calibrate each of the Analog Output (AO) signal. Calibration
tools are accessed on the Calibration Tools window.
NOTE The milliammeter must have an accuracy rating better than that
of the Model 12400 Level transmitter (0.5% of span). The meter
accuracy rating must be better than 8 microamperes.
Connect the transmitter Primary Signal (or Secondary Signal) with a milliammeter in series
with a 12 to 30 VDC supply. When the circuit is interrupted to insert the milliammeter, the
power is interrupted and the transmitter starts up in Normal mode; it must be changed to
Setup mode before opening the Calibration Tools.
To start the Calibration Tools:
Click Calibration Tools (Figure 221).
NOTE The SIL2 feature (see fields in red box) is available using
firmware 1.1.2 or later.
Figure 221 Starting Calibration Tools
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