11 Maintenance and cleaning
FLUXUS G809
11.3 Calibration
115
UMFLUXUS_G809V2-2EN, 2020-06-25
11.3
Calibration
If installed as recommended in an appropriate location, used cautiously and serviced conscientiously, no troubles should
appear.
The transmitter has been calibrated at factory and, usually, a re-calibration of the transmitter is not necessary.
A re-calibration is recommended if:
• the contact surface of the transducers show visible wear or
• the transducers were used for a prolonged period at high temperatures (several months > 130 °C for normal transducers
or > 200 °C for high temperature transducers)
In order to realize a recalibration under reference conditions either the transmitter, the transducers or the transmitter with
transducers have to be sent to FLEXIM depending on which part needs to be calibrated.
11.4
Examination of the O-ring
The O-rings used in the transmitter, see Fig. 11.1, have to be regularly checked, see section 11.1 as well as after each
opening of the housing in order to detect possible damages. Porous or damaged O-ring have to be replaced.
Use original spare parts only, see Tab. 11.1
.
Store the O-ring replacement in a hermetically sealed and dark place.
Housing with increased safety
If the O-ring is defective or the housing does not seal anymore, it has to be replaced.
Danger!
Risk of explosion when using the transmitter in explosive atmospheres
This may result in personal or material damage or other dangerous situations.
→ The O-rings form part of the ignition protection and have to ensure tightness of the housing to guaran
-
tee explosion protection.
Important!
O-rings on increased safety housings may only be replaced by qualified FLEXIM personnel.
Fig. 11.1: Transmitter
1 – housing with increased safety
2 – flameproof enclosure housing
3 – O-ring
4 – housing cover
5 – sight glass
1
1
2
3
3
3
4
4
4
5
