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アクセサリー Armstrong Monitoring Corporation 1044-TのPDF 据付・取扱説明書をオンラインで閲覧またはダウンロードできます。Armstrong Monitoring Corporation 1044-T 16 ページ。 Nema 4x for sensor/transmitter
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4.1 LOCATION AND MOUNTING
Care should be taken to securely fasten the AMC-1044-T monitor unit (via four mounting holes
provided) to a solid, vertical, non-vibrating surface or structure. Mounting height is dependent on
gas type. (See Figure 5 for mounting dimensions.)
Note:
All cable entry MUST be through the BOTTOM of the monitor enclosure only. Other
entry locations will allow foreign materials to enter the enclosure, possibly causing
damage to internal components. Mounting hardware and conduit connections are NOT
supplied.
Mount the 1044-T NEMA-4x monitor in a NON-HAZARDOUS area where local concentrations
of gases are unaffected by the presence of ventilation systems and where the unit can be
observed periodically.
4.2 WIRING OF THE MONITOR
POWER SUPPLY:
RELAYS:
TRANSMITTER
AMC-1044-T Monitor
The monitor operates on 120 VAC, 60 Hz.
transformer runs the internal circuitry at low voltages. The power supply
connections are made at the power terminal block located inside the
monitor. (See Figure 3)
There are up to 3 DPDT relays, which activate with high alarm, low alarm
and optional fail respectively causing contact transfer. The contacts are
available for activating a remote alarm and/or, blower motors where
moving parts are fully guarded, pumps or lighting circuits. Relays are
rated 1/3 hp @ 120 VAC/240 VAC, 10 Amps @ 28 VDC/120 VAC/240
VAC resistive. For relay contact arrangement see Figure 6. The high and
low alarms relay coils are normally de-energized and the optional fail
relay coil is normally energized.
Each transmitter connects to a terminal block labeled Sensor (-SENS+)
located on the PC board. All Connections should be made using shielded
2 or 3-conductor cable, depending on which sensor or transmitter is
used. See schedule of cable sizes (Section 4.3) to select the appropriate
cable.
5
A Class II step down