M&C TechGroup CSS-M Operator's manual - Manual (Page 13)

4-2.1.3-ME Gas sampling and gas conditioning technology 13
After the starting time (LED K1 on the controller is beaming), the portable gas conditioning system is
ready for use, and the sample gas pump is switched on provided the key is activated (shines green).
The sample gas must not be fed before the starting time of the sample gas cooler is finished, i.e. if the
sample gas outlet temperature does not exceed the limits adjusted at works (LED K1 on the controller
is beaming).
N O T E !
The request for a maximum pressure load of the sample gas pump N3
KPE of 1,4 bar abs. results in the following minimal gas flow rate:
N 3 KPE min. 30l/h air,
Premature damage can be caused to the pump membrane due to excess
pressure if less than the minimal total amount of flow is extracted.
In case of long-term measurements with a high level of dust, it is
necessary to utilise a suitable sample gas probe in order to protect the
sample leads from clogging-up.
13.1 COOLER REGULATION
Indication LED K1 LED K2
After starting up > 8°C
(Ambient temp.) Off (Status alarm and pump
off) Beaming permanently
yellow
(cooling)
After approx. 10
min.

7,5°C Beaming yellow.
In case no condensate alarm
is given and the pump switch
is activated (beaming green),
the pump will be switched on.
Sample gas is lifted.
Beaming permanently
yellow
(cooling)
Normal operation 5°C Beaming yellow Beaming yellow
(Regulation of the
cooler)
13.2 NEW PUMP SWITCH SINCE 06/2007
In the past time, it happened repeatedly that the pump switch of the gas conditioning system CSS-M
failed. For that reason, we changed the switch in 06/2007 into a key button. The effect is that the
switch status of the pump in case of a voltage loss does not exist any more.
In order to keep the switch status, there is a jumper JP1 on the board by which you can determine
whether the pump shall restart automatically after a voltage loss or not.
With the bridge 2-3 (on), the pump restarts automatically.
With the bridge 1-2 (off), the pump does not restart again.
When delivered, the bridge is made between 1-2 (off), i.e. the pump does not restart after a voltage
loss.