APT3700N Smart Pressure Transmitter for Nuclear Service Operation Manual M3700N-K01E
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3.4. ZERO Trim
Measured Pressure PV value can be changed into a function of ‘0’ (ZERO), ZERO Trim
and Transmitter memory is saved in the PV Offset. 3.3 case’s ZERO Adjustment and
ZERO Trim is the same One Point adjustment, before the section pressure of the offset
setting is applied.
ZERO Trim is functional below the total 10%.
[Figure 7 ZERO offset correction function]
3.5. SPAN
Place the current pressure to 20mA (SPAN) setting. ZERO function is when ZERO
changes, it ignores the SPAN and with the amount of change of ZERO, it effects the
total pressure area above or below in a shift, with the possibility of the SPAN, ZERO
does not change to SPAN and is changed to setting.
