3
Electrical installation
3.1
Electrical installation
The PM4 Panel Meter is designed for continuous operation and no power switch is fitted to the
unit. It is recommended that an external switch and fuse be provided to allow the unit to be
removed for servicing.
The plug in, screw type, terminal blocks allow for power supply wires of up to 2.5mm
2
to be
fitted. Connect the wires to the appropriate terminals as indicated below. A 22 terminal plug
in data connector is provided which will accept up to 1mm
2
wires. To insert wires to this data
connector insert a screwdriver blade (max 2.5mm wide) into the square socket adjacent to the
terminal required, push the wire into the terminal and remove the screwdriver blade. The wire will
lock in place. See the “Weighted digital input operation and electrical connections” chapter page
for weighted digital input connections.
For connection details of optional outputs refer to the separate ”PM4 Panel Meter Optional Output
Addendum” booklet supplied when options are fitted.
3.2
Instrument rear panel
PM4BCMAN-2.0-0
5 of
Summary of Contents for PM4-BC
Page 7: ...3 5 Parallel BCD input PM4BCMAN 2 0 0 7 of 40...
Page 8: ...3 6 Strobed BCD input 8 of 40 PM4BCMAN 2 0 0...
Page 9: ...3 7 Addressed BCD input PM4BCMAN 2 0 0 9 of 40...
Page 10: ...3 8 Parallel binary input also used for Gray code 10 of 40 PM4BCMAN 2 0 0...
Page 11: ...3 9 Strobed binary input also used for Gray code PM4BCMAN 2 0 0 11 of 40...
Page 12: ...3 10 Addressed binary input also used for Gray code 12 of 40 PM4BCMAN 2 0 0...
