Filtronic BT75, Operating Instructions, Page: 3 / 3

Contents
1. Introduction 5. Maintenance and servicing
1.1 Unit contents 5.1 Replacement of filter
1.2 Picture 6 Troubleshooting
2. Safety instructions 7. Technical data
3. Taking into operation 8. Spare parts and ordering
4. Description of function 8.1 Accessories
9. Warranty
1. Introduction
BT75 is a compact filtersystem designed for the work bench where fume extraction is
required.
1.1. Unit contents
Before you start to use the unit, please check that all components listed below are
complete and undamaged.
- Filter unit BT75
- Power supply unit with cord
- Extraction arm (packed inside the front cover at delivery)
- Mounting bracket with screws (4 pcs) and mounting screws (2 pcs)
(packed inside the front cover at delivery)
1.2 Picture
1 Connection for extraction arm 4 Main filter
2 Front cover 5 Extraction arm
3 Main switch 6 Pre-filter bag (inside front cover)
2. Safety instructions
Important note:
The filter system must not be exposed to temperature exc50°C , open flame,
ashes, live coal or condensed solvents.
Turn off main switch (pict. 1.2, note 3) or disconnect mains when replacing filter.
Do not modify filter system. Repairs should be only carried out by experienced and
authorised personnel.
Hints towards gas filtration:
The best possible gas filtration will be achieved if:
- Process air temperature in the gas filter < 38 °C
- Relative humidity < 60 % RH
- Gas molecules > 40 g / mol (filtration better with larger molecules)
- Boiling temperature of gas molecules > 0 °C
3. Taking into operation
Connect the power supply unit (delivered with this unit) between the filter unit and the wall
socket.
Place the filter unit so that the fumes and gases are captured by the extraction arm. Hook
it up on/at the working bench (according to separate instructions, packed together with
the mounting screws). Connect the extraction arm (pic. 1.2 note 5) to the filter unit (pic.
1.2 note 1).
The main filter should be marked with the date of filterchange.
4. Description of function
Use the main switch (pic. 1.2 note 3) to turn the filter unit on and off. The lamp in the switch
indicates clogged up main filter
5. Maintenance and servicing
To make sure that the filter system works proper regulary clean nozzles, suction arm and
tube and change the pre-filter bag. If the unit indicates pressure drop replace main filter.
Normal life time for a main filter in the electronic industry is 1500 h.
5.1 Replacement of filter
Follow the instructions on the exterior of the main filter when exchanging main filter and/or
pre-filter bag. The main filter should be marked with the date of filterchange.
6. Troubleshooting
- Check the power supply
- Lift the front cover and check the electrical connections
- Check that the filters are mounted in the correct way and that there is no leakage
OPERATING INSTRUCTIONS BT75 OPERATING INSTRUCTIONS BT75
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