MAR-IN Controls SG 6100, Техническое руководство

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PNEUMATIC CONTROLLER
SERIES SG6100
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MAR-IN CONTROLS B.V. VAN UTRECHTWEG 8 –10 KRIMPEN A/D IJSSEL THE NETHERLANDS
Tel. + 31 (0)180 - 51 71 51 Fax +31 (0)180 - 51 89 14 info@mar-in-controls.com www.mar-in-controls.com
Cleaning of the calibrated orifice
- Partly unscrew the clamp screw (19.3) and slide the
retaining plate (19.2)
- Remove the calibrated orifice (20) from its housing.
- Wash the orifice in petrol or trichlorethylene.
- Dry the orifice, replace it and tighten screw (19.3)
If the above operations are inadequate by virtue of their
being excess dirt in the orifice, the orifice may be cleaned
by using a wire of 0.2 mm od. or with the special cleaning
wire, available at Mar-In Controls.
Dismantling and cleaning the output relay
Dismantling of the output relay can only be done
correctly by experienced instrumentation engineers.
If there are any trouble with this relay, we recommend to replace it by a new one.
- Switch off the air supply to the instruments.
- Unscrew the screw (19.3) and (19.4). Remove the relay from the instrument.
- Unscrew the top cap (19.1).
- Unscrew the 4 screws C, D, E, F. Remove the top plate and the gasket (for replacement gasket
specify code PR 7/3)
- Remove the metal diaphragm with vent baffle in its seat along with the relative gaskets.
- Replace the 4 screws C, D, E, F.
- Check that the 3 O-rings are in place in the relay manifold, replace the relay and fix it in position
with the 2 screws (19.3) and (19.4).
- Centre the vent baffle pressing it against its seat with a pointed tool as shown in Fig. 8.
- Replace the top cap (19.1)
- Switch on the air supply
Dismantling the Control Unit
- Switch off the air supply
- Remove the dial of the controller
- Detach the Control Unit link (16)
- Unscrew the 2 screws which fix the Control Unit to the base of the case.
- Detach the tubes from the Control Unit, thus allowing the unit will be removed
.
Fig. 7 - Relay with calibrated
orifice