DeNOx
Controller -> Alarm range
This item allows setting of the alarm range threshold for the optical alarm as well as for the alarm
relay. The alarm threshold may be set in the range from ±5 °C (±9 °F) to ±30 °C (±54 °F) with respect to
the nominal value.
Note:
Default value at delivery is ±10 °C (±18 °F).
Exit submenu
Display → Submenu → E
Selecting this will return you to the main menu.
6 Maintenance
During maintenance, remember:
• The equipment must be maintained by a professional familiar with the safety requirements and risks.
• Only perform maintenance work described in these operating and installation instructions.
• When performing maintenance of any type, observe the respective safety and operation regulations.
DANGER
Electrical voltage
Electrocution hazard.
a) Disconnect the device from power supply.
b) Make sure that the equipment cannot be reconnected to mains unintentionally.
c) The device must be opened by trained staff only.
d) Regard correct mains voltage.
DANGER
The gas inside the filter, condensate and used filter elements may be caustic or corrosive.
Sample gas can be harmful.
a) Before maintenance turn off the gas supply and surge with air if necessary.
b) Exhaust sample gas to a safe place.
c) Protect yourself against toxic / corrosive gas during maintenance. Wear appropriate personal protection equipment.
CAUTION
Hot surface
Risk of burns
Depending on the operating parameters, the housing temperature may reach over 100 °C during operation.
Allow the unit to cool down before performing maintenance.
CAUTION
Excess pressure
The unit mustn’t be pressurised or energised when opened.
If necessary, close the gas supply and ensure a safe pressure on the process end before opening.
The hose inside the pumps is a wear item and must regularly be checked for leaks. Replace as described in chapter “Replacing
the hose”.
The maintenance cover can be removed by loosening the four screws.
30 Bühler Technologies GmbH
BX460035 ◦ 08/2017
