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8013741/16LH/V1-7/2020-04| SICK
O P E R A T I N G I N S T R U C T I O N S | MCS300P Ex
Subject to change without notice
6
DECOMMISSIONING
6
Decommissioning
6.1
Decommissioning
1
Set the maintenance signal (
see “Maintenance/maintenance signal”, page 41
).
2
Feed the inert medium into the cell:
– manually or
– with the program (If parameters were set).
3
Allow the MCS300P Ex to run in this state long enough so that the cell and the
connected tubes are purged of the measured medium (duration depends on the
measured medium).
4
Disconnect the MCS300P Ex from the main power supply.
5
Disconnect the Ex control unit from the main power supply.
6
If heated subassemblies are connected: Disconnect these subassemblies from the
main power supply.
7
If necessary, remove liquid from the cell and allow the cell to dry.
CAUTION:
Hazards through electric voltages
▸
Only let the work described in the following be carried out by skilled electricians who
can recognize potential risks.
▸
Before opening the enclosure: Separate all connectors of the MCS300P Ex from the
main power supply.
CAUTION:
Acid, risk of chemical burns
The cell and the connected hoses could contain caustic or corrosive media (noxious or
irritating substances).
Risk of splashing when tubes are removed or cut off.
▸
Take suitable protective measures when working on parts having contact with the
measured medium (e.g., wear protective goggles or a safety mask, protective gloves
and acid-proof protective clothes).
CAUTION:
Risk of contamination when the device is switched off
When the device is switched off, there is a risk of contamination by medium remaining
in the cell.
▸
Before switching off the device, purge the connected cell and tubes for a sufficient
period with an inert medium.
WARNING:
Risk of explosion through residual voltages and hot surfaces
▸
Do not open when an explosive atmosphere is present. (Enclosure contains
batteries).
▸
Wait 15 minutes after switching off the main power supply before opening the
enclosure.
WARNING:
Risk of explosion through residual gases.
When using combustible and ignitable gases:
▸
Before switching off the device, purge the connected cell and tubes for a sufficient
period with an inert medium.
To switch the device off for a short time, use the “
System stop
” function (
).
