Denox-MB
CAUTION
Fragile
The glass pearl receptacle can break. Handle with care, do not
drop.
Please note the correct position of the seal when connecting
the gas lines. The seal consists of a silicone ring with a PTFE
sleeve. The PTFE side must face the glass thread.
The sample gas hoses must be supported and secured by the
cable gland.
Long sample gas lines may require additional support clamps
along the way to the analysis system! Once all lines have been
connected and checked for leaks, carefully reinstall and secure
the insulation.
WARNING
Gas emanation
Sample gas can be harmful to the health!
Check the lines for leaks.
4.5.1 Connecting the calibrating gas line (optional)
Connecting the calibrating gas line requires a ø6mm or ø1/4”
pipe fitting.
If the calibrating gas connection was ordered with check
valve, a ø6mm or ø1/4” pipe can be connected directly to the
check valve.
4.5.2 Connecting the condensate line
Connect the DN4/6 condensate line to the hose connection in
the bottom.
4.6 The glass pearl receptacle
The glass pearl receptacle must be filled with glass pearls be-
fore use. Follow the steps under Replacing the glass pearl re-
ceptacle.
The condensate output is located at the lower position of the
glass pearl receptacle. It features a factory installed peristaltic
pump for removing condensate. The upper GL connection is
for the core of the heated line.
The glass pearls can be cleaned and replaced if necessary.
4.7 Electrical connections
WARNING
Hazardous electrical voltage
The device must be installed by trained staff only.
CAUTION
Wrong mains voltage
Wrong mains voltage may damage the device.
Regard the correct mains voltage as given on the type plate.
WARNING
High voltage
Damage to the device in case of insulation testing
Do not proceed insulation tests with high voltage to the
device as a whole!
CAUTION
Maximum power input
The power adapter must be suitable for the maximum power
input of the device. It must be made of heat-resistant mater-
ial and may not come into contact with hot surfaces. The
power adapter must comply with IEC60227 or IEC60245 or be
approved by another recognised testing body.
Electric strength test
This unit is equipped with extensive EMC protection. Testing
the electric strength will damage electronic filter components.
The necessary tests of all assemblies required to be tested
were carried out at the factory (test voltage 1 kV or 1.5 kV de-
pending on component).
To check the electric strength again yourself, only do so on the
respective individual components.
• Disconnect / unplug all components (see pin assignment
in the appendix).
• Now perform the electric strength test against earth.
The air conditioning is permanently connected to the probe.
These probes have controllable, adjustable heating. The con-
troller is included. The probe is already wired to the controller.
Inside the controller housing is a terminal block for connect-
ing the alarm output. It is connected according to the ter-
minal diagram (see attached) with the included plug connect-
ors. For this purpose the plugs can be removed from their
sockets and reinserted once wired. The pin assignment is also
printed onto the board.
The GFP-housing provides a terminal block for connecting the
mains supply and the alarm outputs of the air conditioning
unit.
If the heat dissipation is very high near the probe due to the
application, install an appropriate shield provided by the cus-
tomer for protection.
The device must be incorporated into the protective conductor
system of the operator.
The following separation facilities are to be provided for the
current and voltage supply of the components:
RCD, main switch and circuit breaker or fuses
The following conditions must be met for use:
• The automatic disconnecting device must switch off the
load within the prescribed time.
• It must be designed for the highest working voltage and,
if applicable, for the highest operating current. Air and
creepage distances between the terminals of the power or
voltage-limiting device must meet the requirements for
reinforced insulation.
• The device switches or circuit breakers used as a discon-
necting device must comply with the applicable require-
ments of IEC60947-1 and IEC60947-3 and be suitable for
the application. These may not be installed in the mains
connection cable or interrupt the protective conductor
and must disconnect all current-carrying conductors. It
must be installed in the vicinity of the system, be easily
accessible, and be marked as the disconnecting device.
9Bühler Technologies GmbHBX460034 ◦ 01/2021
