7. Maintenance and cleaning
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Maintenance and cleaning
Prior to any maintenance and cleaning work, disconnect the device from the mains
supply.
7.1 Maintenance
Although the GLS is maintenance-free, it is useful to check the equipment periodically:
- Check for loose bolts or nuts at the plastic bars
- Remove any objects laying on the detector head
- Remove any objects in the detector passage between slide and detector (remains of bulky goods
or accumulated dust)
- Check the throughput opening for damages and cracks, where water can enter?
- Check the connection cable for damages (i.e. the cable sheath).
7.2 Cleaning
7.2.1 Advice
- Please ensure you follow the instructions below.
- Specific machine components must be cleaned with specific substances. Please use the correct
materials and clean at regular intervals as suggested.
- Do not start cleaning until the machine has been switched off at the mains.
- If the building is being cleaned ensure the machines are covered up.
The following must not be used for cleaning:
- Sharp, hard or pointed objects
- Water or steam jet appliances
- Compressed
air
- Hazardous and solvent-containing materials
- Cleaning agents that may attack the materials used
7.2.2 Cleaning instructions
We recommend cleaning the area with a soft, non-fibrous cloth using warm water and the appropriate
cleaning agent. Once weekly clean inside and underneath the detector thoroughly to remove dirt and
deposits. After cleaning wipe up any remaining drops of water with a dry, non-fibrous cloth. From time
to time apply oil to the stainless steel framework (eg Nirostol 55 cleaning and maintenance oil which
meets food industry standards).
7.2.3 are advice for stainless steel
The manufacturer uses only high-grade stainless steel. To prevent rust on the high-grade steel parts
do not use substances containing chloride (eg cleaning or disinfecting products) or site the machine in
an atmosphere containing chloride. If this is unavoidable the steel parts must be thoroughly rubbed
down immediately afterwards with cleaning oil eg Nirostol 55 cleaning and maintenance oil (which
meets food industry standards).
Important information for stainless steel models
Stainless steel models are extremely weatherproof and are therefore able to withstand most environ-
mental conditions.
However, even stainless steel can be susceptible to a slight film of rust.
These deposits are caused by contact corrosion and can be removed by following the instructions
below:
- Use a stainless steel cleaner: in principle any stainless steel cleaner may be used. Please ensure
you read the instructions prior to use.
- Use only cleaning agents that are halogen-free (ie without chlorides and fluorides), and salt and
hydrofluoric acid free.
- After each cleaning rinse the machine thoroughly with tap water
- Do not use the following: non-alloy materials or substances, abrasive cloths, cleaning agents con-
taining salt or hydrofluoric acid, chrome, silver or brass cleaners.
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