M&C TechGroup CG-2H-W_-2MH-W Operator's manual - Manual (Page 17)

17
Gas sampling and conditioning technology 9-0.2-ME
The converter should be installed away from sources of heat and in a posi-
tion which allows air to circulate freely in order to avoid any heat accumula-
tion.
To avoid a heating-
up of other devices in case of a 19”-rack, we recommend
a minimum mounting height of 4U (HE)
13 SUPPLY CONNECTIONS
13.1 HOSE/TUBE CONNECTIONS
The gas inlet and outlet hoses/tubes of versions CG-2/-2M are connected on the rear of the converter.
Here, the standard executions provides G 1/4" threaded joints. The versions CG-2H/-W/-2MH-W as
wall mounting execution with heated sample gas inlet and outlet are equipped with a 6mm tube con-
nector of stainless steel.
The appropriate tube or hose threaded joint connections are available optionally from M&C.
N O T E !
Do not confuse hose/tube connections for sample gas inlet and
outlet; the connections are labelled accordingly !
Check for tightness after connection !
When connecting the sample gas supply hoses or tubes to the corresponding threaded connections,
pay attention to the following points:
N O T E !
The tightness of the connections can only be guaranteed if the end
section of the connection hose/tube is flat (use a hose-cutter) !

Loosen the sleeve nut of the clamping-ring threaded joint by turning to the left. Take care that the
nut is removed carefully from the body of the threaded joint to avoid losing the clamping ring which
is mounted loose in the nut.

Push the sleeve nut over the connection hose/tube.

Push the clamping ring respectively the pressure and the cutting ring onto the connection hose/tube
with the thicker bulge pointing to nut.

Push the hose/tube onto the supporting nipple in the threaded joint.

Tighten the sleeve nut by hand.
The hose/tube is now mounted in such a way that it cannot slip and is resistant to pressure.
Connecting a heated sample line with an inner tube of PTFE to the converters CG-2H-W/-2MH-W, a
respective insert is absolutely necessary.