10
Maintenance
10.1
Safety
Requirements for the maintenance personnel
•
Only allow an authorized electrician to work on the electrical system or electrical
subassemblies.
•
The technician must be familiar with the exhaust gas technology of the operator's
plant (hazard by overpressure and toxic and hot flue gases) and be able to avoid
hazards when working on gas ducts.
•
The technician must be familiar with handling compressed gas cylinders (test
gases).
•
The technician must be able to avoid hazards caused by noxious test gases.
•
The technician must be familiar with gas lines and their screw fittings (be able to
ensure gas-tight connections).
10.2
Important information
Electric voltage
DANGER
Danger to life through electric shock
There is a risk of electric shock when working on the device with the voltage supply
switched on.
b
Before starting work on the device, ensure the voltage supply can be switched
off in accordance with the valid standard using a power isolating switch/circuit
breaker.
b
Switch off the voltage supply before starting any work on the device.
b
After completion of the work or for test purposes or calibration, the power supply
may only be activated again by authorized personnel complying with the safety
regulations.
NOTICE
Risk of destruction of electronic components by electrostatic discharge (ESD)
When electronic assemblies are touched, there is a risk of the assembly being
destroyed by electrical equipotential bonding.
b
Make sure you have the same electric potential as the assembly (e.g. by ground‐
ing) before touching the assembly.
NOTICE
Observe voltage variant
Some spare parts are available in different voltage variants, 115 V or 230 V.
The power voltage of your system is shown on the type plate.
b
Check spare parts for voltage dependency before fitting:
MAINTENANCE
10
8021889/1D1T/V3-1/2021-09 | SICK
O P E R A T I N G I N S T R U C T I O N S | MCS200HW
45
Subject to change without notice