[SM‑276677‑A]
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10
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３． PRODUCT OPERATION
３.１ Adjustment
The Parect Electronic regulator
’
s zero point and span point are factory adjusted at the time of shipment.
Zero and Span adjustment at factory
Model
Zero（MPa）
Span（MPa）
ＥＲ３１０
０
０．０９８
ＥＲ３５０
０
０．４９
ＥＲ３８０
０
０．７８
If necessary, in accordance with the following procedures after mounting a pressure gage of
accuracy commensurating with the accuracy expected on the secondary side.
Procedure−１ Adjust operational pressure.(primary side).
Procedure−２ Zero point adjustment
First, turn on the power and set the signal to 0 V (4mA for the current input type). Then, set the
pressure to 0MPa by turning the zero point adjustment trimmer either clockwise or counterclockwise.
(Clockwise turn of the trimmer increases the pressure and counterclockwise turn of the trimmer decreases
the pressure.)
Procedure−３ Span adjustment
First, turn on the power and apply the rated voltage or current (10 VDC, 5 VDC, or 20mADC
(depending on the model)). Then, turn the span adjustment trimmer either clockwise or
counterclockwise to obtain the rated output. (Clockwise turn of the trimmer increases the
pressure and counterclockwise turn of the trimmer decreases the pressure.)
Note1.
As zero point adjustment and span point adjustment affect the setting of each other, be sure to
perform these adjustments alternately in order to effect the correct settings.
Note 2.
Since adjustment trimmers are highly sensitive, output pressure will varies greatly with only a
slight change in trimmer settings, and great care is required when making the adjustment.
Specially the zero point adjustment responds with a time lag, any adjustments must be mad
slowly.
PRODUCT
OPERATION
３
Discontinue
