9
IV. INPUT AND OUTPUT CALIBRATION
How to Enter/Exit:
The input and output calibration screens are hidden. See Figure 1 - Confi guration Mode
for how to fi nd and enter the PV1 (Flow) and PV2 (Residual) input calibration screens as well as the PO1
output calibration screens.
Overview:
The analog inputs are calibrated by Hydro Instruments. Should the inputs need to be recalibrated
the following steps explain how to calibrate the AI1 through AI4 analog inputs.
1. Input Electrical Calibration:
AI1 through AI4 are calibrated electrically.
2. Output Electrical Calibration:
AO1 and AO2 (4-20mA) are electrically calibrated.
NOTE: Navigate to the HIDDEN “OUT” screens on Figure 1 to electrically calibrate the four input
channels AI1 through AI4 and two output channels AO1 and AO2. These are all 4-20mA input and output
channels.
