Cameron NUFLO MC-III EXP, User Manual

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A-1
MC-III™ EXP Flow Analyzer Appendix A
Appendix A—MC-III EXP Hardware Options
Explosion-Proof Reset/Control Switch
An external explosion-proof reset/control switch (Figure A.1) allows the user to zero the total and manually
select which parameter is displayed on the LCD and view daily logs instantaneously without removing the
instrument cover or connecting the instrument to a laptop computer.
Caution: This switch is available in two models. The CSA-approved model has a stainless steel
adapter, and the ATEX-approved model has a brass adapter.
Figure A.1—Explosion-proof reset/control switch (CSA-approved stainless steel adapter shown)
The reset/control switch assembly mounts in either threaded conduit opening in the instrument housing.
The CSA-approved assembly is available in two variations for use with the standard enclosure shown above,
and the alternate enclosure shown in
Figure 2.6, page 18.
The alternate enclosure is identified by a red ring
around the face of the cover. Both parts are included in the
MC-III Parts List (CSA), page 97.
Installation
If the switch is ordered with an MC-III, it will be installed prior to shipment.
To add a switch to an existing MC-III, connect the leads to connector J2 on the main circuit board (
Figure
A.2, page A-2)
.