Power Supply Connections; Sample Gas Inlet And Outlet; Electrical Connection - M&C PMA Series Instruction Manual

14

POWER SUPPLY CONNECTIONS

14.1

SAMPLE GAS INLET AND OUTLET

Sample gas inlet and outlet (8, see figure 2) are placed on the lower side of the analyzer. These are
1/4" NPT i threads.
N O T E !
It is recommended to make a leak test afterwards.
The sample gas must be dry and free of dust, and the sample gas inlet temperature should not exceed
+50 °C. If this is not the case, a gas cooler with automatic condensate evacuation must be mounted
upwards.
The sample gas outlet should have atmospheric pressure if possible because a pressure increase
inside the measuring cell will falsify the oxygen indication. The maximum inlet pressure is 600 mbar.
The sample gas quantity should be adjusted according to the requirements between 6 Nl/h and
60 Nl/h air (external flowmeter).
14.2

ELECTRICAL CONNECTION

W A R N I N G !
N O T E !
A main switch and a respective fuse must be provided externally by the client.
After removing the window cover, the electrical connections are freely accessible.
• In order to remove the window cover, unscrew the safety screw (hexagon socket screw) with a
hexagon key 2.5 mm;
• Unscrew the window cover by turning it counter-clockwise with the help of a flat iron with the di-
mensions 10 x 10 x 300 mm (H x L x L);
• Unscrew the fixing screws on the front plate and remove the front plate carefully (take care of the
connecting cables of the front plate).
The electrical connections are to be made according to figure 5.
14
When fastening the screw connection, hold up at the back side with a
respective spanner!
False supply voltage can damage the equipment. When connect-
ing the equipment, please ensure that the supply voltage is iden-
tical with the information provided on the model type plate!
Take care that the instrument hat got a sufficient connection to
earth!
Attention must be paid to the requirements of IEC 364 (DIN VDE
0100) when setting high-power electrical units with nominal volt-
ages of up to 1000V, together with the associated standards and
stipulations!
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