WIKA LSO.25 - Manual (Page 30)

30 WIKA operating instructions models LSO.06, LSO.25
13334603.01 09/2010 GB/D/F/E
GB
8. Notes for mounting and operating in hazardous areas
Zone 0 for Transducer model LSO.06
If medium touched parts consist of titanium, the operator has to take care that no metallic
fittings can beat to the sensor parts and therefore could trigger a blow spark in the contain-
er. Perhaps a protection cage has to be attached outside the container around the sensor
head.
Ambient temperatures
If the transducer is installed vertically, the operating company has to provide it, the max.
temperatures indicated in the technical data do not exceed at all over, for Ex version
T6: +60 °C and T5: +75 °C.
CAUTION!
When a fault occurs, the repair should be by the manufacturer or by the
system operator and approved by a factory expert.
9. Maintenance, repair and cleaning
9.1 Maintenance
As a rule, these instruments are maintenance-free.
Stronger pollution is in the plant, however, recommends himself to make a maintenance
instruction. Perhaps this can confine himself to an electrical measuring of the voltage
between GN and WS of the transducer:
■ Immersed (BEN) in the rule 5 V *)
■ Dry (TRO) in the rule 0,2 ... 1 V *)
*) see table page 26 (separation layer) and table page 30
Repairs must only be carried out by the manufacturer.
At broken glass send in the transducer for repair see chapter "12.2 Return".
9.2 Repair
For repairs, only spare parts recommended by us are to be used. Repairs must be agreed
upon with us in writing, otherwise our warranty and responsibility will become void.
Transducer
It is not expected that the plant operator will carry out any repairs himself. If the system
operator wants to carry out a repair, at his own, he must obtain permission from the
manufacturer.
8. Notes for mounting and operating ... / Maintenance, ...