EN | User Manual Monitoring dryer operation
BSP-MT 10-95/D3 29
Monitoring dryer operation
The dryer operates fully automatically. However, you should carry out the regular checks
described in the Chapter Maintenance and repair of the dryer.
Warning against sudden air ejection!
During expansion the pressure is released suddenly through the muffl er:
◊ A loud cracking noise occurs which can injure your hearing.
◊ Particles carried in the air fl ow act like bullets and can injure your eyes or
skin.
Always wear eye and ear protection, therefore, when you are in the vicinity of
the dryer!
With dewpoint-sensing control (optional)
Display of dewpoint
If the dryer is equipped with a dewpoint-sensing control system, the digital display at the
front of the switchbox shows the currently measured dewpoint. The range of display is –100
°C (-148 °F) to +20 °C (68 °F).
If the set dewpoint is exceeded, the system automatically completes a switchover between
the chambers. The dewpoint at which a switchover is made is preset at the factory.
After commissioning or extensive maintenance work, check the dewpoint display at the
dryer.
Under certain circumstances, the desired dewpoint is only reached after prolonged operation.
Error messages
If the measured dewpoint exceeds the preset alarm limit (5 °C (41 °F) above the switchover
value), the displayed dewpoint value is ashing. In addition, an error message can be issued
through the potential-free busbar.
Error codes and their causes:
Display Cause
+20 ◊ Upper measuring range limit exceeded
999 ◊ Dewpoint sensor defective
sens
o
-999
◊ Dewpoint sensor not powered
◊ Cable defective
◊ Sensor defective
For instructions on how to eliminate faults, see chapter Identify and eliminate faults
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