Pneumatic Connection; Mounting The I/P Converter To Positioners - Samson 611 Mounting And Operating Instructions

Mounting and start-up
Ex d versions: connect the device with
an approved metal cable entry (certifi-
cate of conformity) or a seal box pipe.
Approved versions (certificate of confor-
mity) are equipped with permanently
sealed cable entries.
2. Secure grounding conductor at the
ground terminal located either inside or
outside the enclosure.
3. Check the O-ring for damage.
4. Screw on the cover as far as it will go.
Unscrew the cover until the first possible
safety position (notch) is reached.
5. To lock the cover in position, tighten the
cap screw.

5.4 Pneumatic connection

The supply air must meet the following re-
quirements:
− Min. + 0.4 bar above the upper signal
pressure range
− Max. 10 bar
Type 6116-2: max. 6 bar (see EC type
examination certificate in section 10.2)
− Dry, free of oil and dust (see section 3.2)
The pneumatic connections for supply air
(SUPPLY 8) and output (OUTPUT 36) are de-
signed as threaded ports with G ¼ or
¼-18 NPT thread.
Customary fittings for metal tubing or plastic
hoses can be used.
Î Read the maintenance instructions for
upstream air reducing stations.
28
Î Blow through and clean all air pipes and
hoses thoroughly before connecting
them.
NOTICE
!
Risk of property damage due to water en-
tering the device.
Î Make sure that no water can enter at the
end of an extension of the venting pipe
(minimum cross-section of 28 mm² =
6 mm inside diameter) connected to ei-
ther vent elbow piece or directly to the G
or NPT connection.
5.5 Mounting the i/p converter
to positioners
Analog positioners with Ex d explosion pro-
tection can be implemented by combining a
p/p positioner with a Type 6116-2 (Ex d)
Converter.
In the Type 6116 Converter designed for po-
sitioner attachment, the connection to the po-
sitioner is used in place of the booster.
Another application involves upgrading p/p
positioners to electropneumatic positioners
(current signal input instead of the pneumatic
signal).
− Type 6116-xx010111000xxxx with
½ NPT electrical connection
− Type 6116-xx101012000xxxx with
M20x1.5 electrical connection
EB 6116 EN