Exchanging The Electronics; How To Proceed If A Repair Is Necessary - KROHNE OPTISWITCH 5300 Handbook

7 Maintenance and fault rectification
Error
Red control lamp lights up
Reaction after fault recti-
fication
34
Cause
Error on the vibrating el-
ement
Interference on the elec-
tronics module
Instrument defective
Depending on the reason for the fault and the measures taken, the
steps described in chapter " Setup" must be carried out again or must
be checked for plausibility and completeness.
7.3

Exchanging the electronics

If the electronics module is defective, it can be replaced by the user.
In general, all electronics modules of the respective type series can
be interchanged. The type name is stated on the electronics module.
If you want to use an electronics module with a different signal output,
you have to carry out the complete setup. You can find the required
operating instructions manual on our homepage.
With SIL qualified instrument, only a respective electronics module
with SIL qualification must be used.
In Ex applications, only instruments and electronics modules with ap-
propriate Ex approval may be used.
You can find all the information you need to carry out an electronics
exchange in the handbook of the new electronics module.
7.4

How to proceed if a repair is necessary

If it is necessary to repair the instrument, please contact the responsi-
ble Krohne agency.
Rectification
Check if the vibrating element is damaged or extreme-
ly corroded.
Exchanging the electronics module
Exchange the instrument or send it in for repair
OPTISWITCH 5300 C • Two-wire 8/16 mA