Union Instruments Pury250 S, Operating Instructions Manual

Page: 56 / 66

56
Troubleshooting
12.2 Changing/replacing fuses
Only skilled electricians or service technicians are permitted to replace fuses.
Only replace with fuse types specified by UNION.
12.3 Troubleshooting
no. Description
1
Cooler/fan does not start up.
• A check must be made to determine whether the device is properly connected to the
power supply system.
• The Pury does not activate the calorimeter. The ambient temperature is too high. Switch
the additional readiness condition Diff Ambient to "off" or set a smaller value.
2
Device does not cool.
• The filter is dirty and must be cleaned.
• The fan is not delivering enough cooling air. Check fan and or the cooling fins for dirt.
3
Condensate is escaping from the output.
The filter is filled with condensate. Inadequate condensate suction.
• Check pump hose for free passage.
• Increase the switching frequency of the condensate pump.
• The flow rate of the gas is too high. Check whether flow rate exceeds 250 l/h, reduce flow
rate.