The STC-703 Wireless Environmental Monitoring System provides
off-site monitoring of three parameters, plus A.C. power
loss, daily communication test, low battery and "restore to
normal" conditions. A relay is included for interfacing to
on-site equipment where a 5 amp dry contact can be used. LEDs display
all power and input conditions.
The
equipment is contained in a weatherproof fiberglass enclosure
for outdoor or indoor mounting. There is a 1/2 inch conduit opening
in the enclosure to permit wire entry. A 16V AC plug-in transformer
to power the STC-703 and 7AH, 12 volt rechargeable battery are
supplied for backup power, providing continuous operation during
power failures up to 48 hours. An internal temperature compensated
power supply keeps the standby battery at optimum charge with
rapid, current limited and voltage float charging. A low battery
disconnect circuit removes the battery from the system on an extended
power outage to avoid deep discharging of the battery.
All
inputs are buffered through a one minute delay to "Alarm"
and one minute delay to "Normal". This eliminates the
momentary signals generated by power fluctuations, rapid photocell
operation and switchover transients. Each input can be selected
for N.C. or N.O. input for "Normal" condition.
Compression terminals are provided for all wiring. Any size wire,
up to 12ga, may be used for the power and monitored device connections. |
Click here to view specifications.
- Weatherproof Case
- Monitors 3 variables plus power failure
- Daily Signal Check
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