Siemens SITRANS LVL100 Gebruiksaanwijzing - Pagina 21
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SITRANS LVL100 l CONTACTLESS ELECTRONIC SWITCH
7.3 Exchange electronics
To exchange the electronics in case of failure, it is not
necessary to dismount the instrument.
Dismounting the electronics module can destroy the housing
seal. Therefore only open the instrument if you want to insert a
new electronics module. The housing seal is supplied with the
electronics module.
You require an electronics module type SWE50T or SWE50C.
If you want to use an electronics module with a different signal
output (e.g. transistor output SWE50T), ask for the appropriate
operator's manual. Take note of the specifications in the
corresponding operating instructions.
Proceed as follows to exchange the electronics module:
1 Separate SITRANS LVL100 from operating voltage
2 Loosen fixing screw (1) of the valve plug (2) with a wrench
3 Remove valve plug (2) according to drawing
4 Remove lateral fixing screw (7) with a crosstip screwdriver
5 Pull electronics module (4) carefully out of the housing (8)
6 Remove the plug of the connection cable (6) from the
socket on the oscillator (4)
7 Set the 16-step rotating switch (5) of the new replacement
electronics module (4) to the value of the defective
electronics module
8 Insert the connection cable (6) in the socket of the new
electronics module (4)
9 Insert electronics module (4) into the housing (8). Make
sure that the lateral thread on the electronics module is
above the hole on the housing (8)
10 Push the electronics module (4) flush into the housing (8)
11 Screw in the lateral fixing screw (7) with a crosstip
screwdriver
12 Plug the valve plug (2) to the instrument, make sure that
the profile seal (3) is placed correctly
13 Tighten fixing screw (1) with a wrench
SITRANS LVL100 is again ready for operation.
Maintenance and fault rectification
21