Operating Instructions
Chapter
8
RFH620 Interrogator
Maintenance
8013105/0000/2009-05-12
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SICK AG · Division Auto Ident · Germany · All rights reserved
57
8
Maintenance
8.1
Maintenance during operation
It RFH620 operates maintenance-free in all variants.
Important
Do not open the interrogator's housing. If the device is opened, the SICK AG warranty shall
not apply.
8.2
Cleaning the housing
>
Use a soft cloth to free the housing of dust.
>
If necessary, also clean the LEDs on the housing.
8.3
Checking the incremental encoder
If an optional incremental encoder is used, the position of the friction wheel at the drive sys-
tem should be checked at regular intervals.
>
Ensure that the incremental encoder has direct and fixed contact with the drive system
and that the friction wheel rotates without slipping.
8.4
Replacing an interrogator
Incorrect or damaged devices have to be removed and replaced with either new or repaired
devices.
Important
Repairs to the interrogator should only be carried out by qualified and authorised SICK AG
service staff.
8.4.1
Dismantling the interrogator
1. Switch off the power supply to the interrogator.
2. Disconnect all the connection cables of the interrogator.
3. Remove the interrogator from the holder. In the process, mark the interrogator´s situ-
ation and alignment on the holder or environment.
4. If available, remove the Micro SD memory card (optional) with the stored parameter set
from the faulty interrogator (see
chapter 4.7.4 Parameter set on the Micro SD memory
). To do this, open the cover and slightly press on the memory
card in order to unlock it.
5. Insert the memory card accordingly into the empty space of the new, turned-off interro-
gator the right way round (the card's notches point to the two yellow keys) until it is lo-
cked.
6. Close the cover again.