54
8012707/ZVF9/V2-1/2019-04 | SICK
O P E R A T I N G I N S T R U C T I O N S | GM32
Subject to change without notice
7
CLEARING MALFUNCTIONS
7
Clearing malfunctions
7.1
Safety instructions when clearing malfunctions
CAUTION: General hazards caused by electrical voltage
▸
If it is necessary to open the device for adjustment or repair:
Disconnect the device
from all power sources before starting work.
▸
If the open device must be live during work:
This work has to be performed by skilled
persons who are familiar with potential hazards. If it is necessary to remove or open
internal components, live parts could be exposed.
▸
If liquids have penetrated electrical components:
Put the device out of operation and
disconnect the power voltage externally (e.g. disconnect the power cable). Then
contact service technicians of the manufacturer or correspondingly trained skilled
persons to have the device repaired.
▸
If hazard-free operation of the device is no longer possible:
Put the device out of
operation and secure against unauthorized start-up.
▸
Do not interrupt the protective conductor connections inside or outside the device.
NOTE: Damage by voltage
Before signal connections are established (also with plug connections):
▸
Disconnect the GM32 and any connected devices from the voltage supply.
Otherwise the internal electronics can be damaged.
WARNING: Hazard through overpressure in cavities!
With GPP probes, overpressure can arise in the reflector compartment or in the gas
lines, e.g., through deposits of penetrating liquid, when the probe comes into contact
with the hot sample gas. Open connections carefully, make visual and continuity
checks.
▸
Make regular visual and continuity checks of the cavities.
▸
At the same time, take all precautionary measures described in the Operating
Instructions when opening the connections.
