12. Repairs
12. Repairs
12.1 Replacing inductive NAMUR sensor
-see Figure 44
• Check that the new inductive NAMUR
sensor (2) matches the documentation
and the intended use.
• Take safety measures as specified in the
warning at the beginning of this Chapter.
• Disconnect cable end (1) of the defective
NAMUR sensor (2) from the customer's
terminal strip.
• Loosen locknuts (2x 3) from the sensor
holder (4).
• Unscrew defective NAMUR sensor (2)
from the sensor holder (4).
• Apply new NAMUR sensor (2) to the sen-
sor holder (4) and screw in gently.
• Disconnect cable end (1) of the sensor (2)
on the customer's terminal strip.
• Apply pressure to progressive meter-
ing device until the plunger rod (5) has
extended.
• Turn on computer's power supply then
screw the NAMUR sensor (2) into the
sensor holder (4) until the control diode
(6) of the sensor (2) lights up (clearance
to plunger rod approx. 1-1.5 mm)
• Secure NAMUR sensor (2) to the sensor
holder (4) using both locknuts (3).
1
2
Approx. 1 to 1.5 mm
clearance
3
4
6
5
Fig. 47 Replacing inductive NAMUR sensor
- 96 -
951-230-008-EN
Version 04
EN
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