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TN4FCXA2
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6.3 Procedure for adjusting the measuring range
Adjustment of the scale
In nuclear power plants, the measurement scale may only be adjusted with the aid of
the mobile communicator.
The measurement scale can be adjusted with the external adjustment screw following the
procedure below:
(1) Position the switch cursor on SPAN.
Adjustment switch
Positioning the cursor
on SPAN
(2) Apply an input pressure corresponding to the value URV (20 mA - 100%)
(3) Refine the output 20mA using the external screws.
Notes :
1) If the local zero setting has been prohibited by the
FXW, the external screw adjustment is inoperative. The
FXW must be used again to authorise its activation.
2) After the adjustment of the measurement scale, return
the switch cursor to the ZERO position
INDICATION
Diminuer
Augmenter
Ajustement fin : Tourner doucement
(environ 5 sec par tour)
Ajustement approximatif : Tourner vite
(environ 1 sec par tour)
After performing the settings, maintain the electrical supply for at least
for 10 seconds to allow data to be recorded.
