Armstrong Monitoring AMC-1040 Kurulum ve Kullanım Talimatları Kılavuzu - Sayfa 9

Ölçüm Cihazları Armstrong Monitoring AMC-1040 için çevrimiçi göz atın veya pdf Kurulum ve Kullanım Talimatları Kılavuzu indirin. Armstrong Monitoring AMC-1040 17 sayfaları. Gas monitor with integral electrochemical sensor

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4 INSTALLATION

4.1 LOCATION AND MOUNTING

Care should be taken to securely fasten the AMC-1040 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 4 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 1040 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:
ANALOG OUTPUT:
AMC-1040 Monitor
The monitor operates on 120 VAC, 60 Hz.
transformer runs the internal circuitry at low voltages.
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 5. The high and low alarms relay coils are normally de-energized
and the optional fail relay coil is normally energized.
The AMC 1040 comes standard with a 4-20 mA output. This output
corresponds to the gas range indicated on page iv. It can be used for
connecting to an external recorder or other device. The maximum load
is 250 ohms.
4
A Class II step down
The power