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8017171/115Z/V3-0/2019-01/ SICK OPERATING INSTRUCTIONS | VISIC100SF
Subject to change without notice
MAINTENANCE
8.3.2 Maintenance plan
Maintenance by trained users/Customer Service of manufacturer
8.3.3 Tunnel cleaning
The device is protected during tunnel cleaning with degree of protection IP6K9K. However,
ventilator control could be influenced by increased measured values.
▸ Set the device or the complete ventilator control to Maintenance or Manual during tunnel
cleaning.
8.4 When requesting Customer Service from SICK
Request SICK's Customer Service in writing to the responsible office 4 weeks before the
planned maintenance date at the latest. Before this date, the customer must ensure:
● Safe access to, and safeguarding the assembly and workplaces in the tunnel. The
tunnel/traffic lane should be closed when necessary.
● Provision of a lifting platform or a ladder and adequate lighting at the installation
locations.
● Availability of a skilled technician with knowledge of local conditions.
8.4.1 Exchanging the measuring unit
The measuring unit can be exchanged onsite in an error case.
1 Disconnect the VISIC100SF from the power supply.
2 Remove the plug-in connectors:
–Voltage supply
–Analog outputs
–Relay outputs
– Connection terminal strip RS485
–LED plug
–Electrochemical cells
3 Unhinge the defective measuring unit.
Maintenance interval
Maintenance work
Yearly
□
▸
Clean device inside and outside
□
▸
Clean optics
□
▸
Replace or readjust gas sensor
□
▸
Test analog outputs
□
▸
Test digital outputs
▸ Also observe the local statutory and works regulations which apply for the individual
application.
NOTE: During cleaning, the measured values may not be used for ventilator
control.
Inform Service about malfunctions or potential repairs as early as possible. The Service
engineer can then have the spare parts and consumables available that may be
necessary for the maintenance date and thus avoid unnecessary and expensive
multiple journeys.
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