Anderson IZMSG, Инструкция по эксплуатации

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4-4
IZMSG Compact Electromagnetic Flowmeter
AIC2071
Figure 4-1. 300-SMB1 and 300-SJB2 Circuit Boards
Hydraulic Zero Adjustment
A hydraulic zero adjustment (Zero Adjust) must be performed in the field in
order to adapt the flowmeter to the specific hydraulic conditions of the
application. After a successful hydraulic zero adjustment has been
accomplished, it will not be necessary to re-zero the flowmeter as long as the
conditions of the installation remain unchanged.
Once initiated by the Zero Adjustment pushbutton, the hydraulic zero
adjustment is done automatically within 40 seconds. During the adjustment
period, do not work on the piping, wiring, meter body, or converter, since
this will influence the hydraulic zero adjustment.
The Zero Adjustment pushbutton, S4, is located on the 300-SJB2 Junction
Board between Terminals X7 and X8. The CAL/MEAS switch used during
the hydraulic zero adjustment is located on the 300-SMB1 Main Board near
the lower right corner. See Figure 4-1.