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Version sp2000-h320/s2, Test gas feeding, Option test gas feeding return valve – M&C TechGroup SP2000-H320_S2 Operator's manual User Manual

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Gas sampling and gas conditioning technology

2-1.1.4-ME

14.1.3

VERSION SP2000-H320/S2

The following steps have to be effected on the controller 703:

Adjustment of the set value on the sample probe:

Push the PGM-

key for a short time. You can read “SP1” on the below display.

Adjust the desired set value by using the arrow keys   in the above display.

Wait until the set value is flashing for a short time, then it is fixed.

Push the PGM-key twice to return to the normal reading.


Adjustment of the set value of the heated separator:

The actual set value SP1 can be changed directly on the standard reading via the arrow keys  .
After the changing, the new value is flashing for short time and is fixed then.

14.2 TEST GAS FEEDING

During the test gas (calibration gas) feeding, the analyse system remains connected.

The test gas quantity should be at least 25 % higher than the sucked sample gas quantity in

order to avoid a mixing with the sample gas.

If you have processes with excess pressure or low pressure, we recommend an integrated ball

valve in the probe inlet. In this case, a small quantity of test gas is sufficient because the
probe is separated from the process by actuating the ball valve. For shutting the hand actu-
ated ball valve, turn the turning handle to the right until the limit stop.


14.2.1

OPTION TEST GAS FEEDING RETURN VALVE

When feeding test gas via the return valve (check valve) of the probe, a mixing with the sample gas
must be avoided. The flow rate of the test gas should be at least 25 % higher than the sample gas
quantity.

N O T E !


Pay attention

– in case of low pressure operation – that it may occur that

secondary air is sucked via the non-shut return valve if there is less than
300 mbar abs.