Connecting Inputs And Outputs - Flowmetrics 922-MFC Installation And Operating Instructions Manual

Chapter 2
2.0 Installation of the Instrument
2.1 Mounting the Instrument
The Flow Computer can be mounted in a user panel greater than
0.047" (1.2mm) and less than 0.187" (4.7mm) thick. Figure 2-1 shows
the cutout dimensions, bezel size, and depth needed for the instru-
ment. Be sure to provide additional space for cabling and connections
behind the instrument (approximately 1.0"). Additionally, all wiring
to the back of the instrument should have sufficient service loops to
allow for the easy removal of the instrument from the panel.
Slip the gasket provided over the rear of the instrument case and
slide it forward until it engages the inner surface of the front bezel.
Install the screws provided in the mounting brackets and insert in
the slots located on all four sides of the instrument. Tighten the
screws to firmly secure the bezel and gasket up against the panel.
CAUTION: do not over tighten mounting brackets.

2.2 Connecting Inputs and Outputs

Make sure all power is disconnected before making any electrical
connections.
strips as indicated in the external wiring diagram. If cables are in
areas with heavy electrical fields, shielding will be required for noise
immunity. One end of the shielding should be connected to earth
ground. Figures 2-2 through 2-5 show the input, output, and power
wiring locations for the 32 point terminal block on the back of the
instrument.
CAUTION:
CAUTION:
All connections are completed at the rear terminal
An external fuse is recommended.
100mA Fuse for 115 VAC Powered Units.
50mA Fuse for 220 VAC Powered Units.
Do not short the +24 VDC output to any of
the current (+I) inputs.
THIS WILL DAMAGE THE UNIT!
2-1