Maintenance Plan - SICK GM32 Ex Operating Instructions Manual

9.2

Maintenance plan

8015558/1O6S/V1-9/2024-08 | SICK
Subject to change without notice
NOTICE
Risk of device damage when the purge air is switched off too soon
If the purge air is switched off when the sender/receiver unit and the measuring probe
are still in the gas duct, hot and contaminated gas can cause device damage.
Switch off the purge air supply only after removal of the sender/receiver unit from
►
the gas duct.
WARNING
Endangerment of electrical safety during installation and maintenance work when the
power supply is not switched off
An electrical accident can occur during installation and maintenance work when the
power supply to the device and/or lines is not switched off using a power isolating
switch/circuit breaker.
Before starting the work, ensure the power supply can be switched off using a
►
power isolating switch/circuit breaker in accordance with EN 61010-1.
Make sure the power isolating switch is easily accessible.
►
An additional separation device is mandatory when the power isolating switch can‐
►
not be accessed or only with difficulty after installation of the device connection.
The power supply may only be switched on again after work completion or for test
►
purposes by the persons carrying out the work under consideration of the valid
safety regulations.
WARNING
Risk of chemical burns/poisoning through caustic/toxic residues on components with
sample gas contact
After the device has been decommissioned or removed from the measuring channel,
process gas residues can exist as deposits on components with sample gas contact
(e.g., gas filter, gas-carrying lines etc.). These residues can be odorless or invisible
depending on the gas mixture in the duct. Without protective clothing, contact with such
contaminated components can lead to severe burns or poisoning.
Take appropriate protective measures for work (e.g., by wearing a safety mask,
►
protective gloves and acid resistant clothes).
In case of contact with skin or the eyes, rinse immediately with clear water and
►
consult a doctor.
Decontaminate all contaminated components according to regulations after disas‐
►
sembly.
Table 9: Maintenance intervals
Intervall Maintenance task
1)
Checking measured and control values
1W
(zero / test point).
Visual inspection of system.
Clean the window.
Check desiccant cartridges, replace when
necessary. Replace at the latest after 6
3M months.
Check the instrument air adapter.
Check the optical alignment.
MAINTENANCE
Reference
see "Visual inspection", page 64.
see "Cleaning the window", page
see "Checking and replacing the desiccant
cartridges", page 65.
See User Instructions for instrument air
adapter
see "Alignment check (option) - automatic
optical alignment check", page
O P E R A T I N G I N S T R U C T I O N S | GM32 Ex
9
65.
56.
61