Electrical Connection - Bühler technologies EGK 4 S Bedienungs- Und Installationsanleitung

Bedienungs- und Installationsanleitung
Installation- and Operation Instruction
Meßgaskühler / Sample Gas Coolers EGK 4 S
In some applications with very high condensate content separators upstream the cooler could become
necessary (see catalogue for appropriate types).
The gas entrance is marked with red. Be careful when connecting the glass heat exchanger. Fix the fitting by
hand.
If the sample gas pump is located upstream of the cooler, the condensate can be drained off by automatic
condensate drains. If the pump is located downstream peristaltic pumps or condensate vessels must be used
for removal (see our catalogue for appropriate equipment).
Hint: The PVDF heat exchanger type DTV cannot be used with automatic drainers but with peristaltic pumps
only.
The condensate drains can be attached directly to such coolers with stainless steel heat exchangers. In case
of glass heat exchangers the condensate drains must be connected with flexible lines fixed with by brackets
separately.
The condensate lines must be installed with considerable slope and should not have less than 8 mm (0.3 inch)
inner diameter.
3.2

Electrical connection

WARNING
The device must be installed by trained staff only.
CAUTION
Wrong mains voltage may damage the device.
Regard the correct mains voltage as given on the type plate.
WARNING
Damage to the device in case of insulation testing
Do not proceed insulation tests with high voltage to the device as a whole.
The device is equipped with extensive EMC protection. If insulation tests are carried out the electronic filter
devices will be damaged. All necessary tests have been carried out for all concerned groups of components at
the factory (test voltage 1 kV or 1.5 kV respectively, depending on the device).
If you wish to carry out the insulation test by yourself, please test only separate groups of components.
Disconnect the compressor, the fan, the heating ort he peristaltic pumps, respectively, and then carry out the
insulation tests.
The EGK 4S is equipped with two connectors on top of the unit. One connector is for the power supply and the
other one for the alarm output. They cannot be interchanged and must be wired according to the following
diagram (numbering can be found on the connectors). Make sure they are correctly refitted after wiring.
pin numbering
3
1
2
PE
The power supply line has to be used at 10Amps.
12
power supply
L1
1
N
2
3
PE
BX450004, 09/2006
status output
function ok
1
2
alarm
3
PE
ART. NR. 90 31 060