Technical Specifications

403

Calibration Tools

Advanced Setup

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