Extending The Temperature Sensor Length - Emerson FreezeAlarm FA-I-CCA User Manual

4.0 OTHER INSTALLATION NOTES:
4.1 Answering Machines at the Call-To Locations:
If you have an answering machine or voice mail at any of the call-to locations, the
FreezeAlarm will generally leave a portion of its alarm message on the answering
machine or voice mail. You may want to test this as some answering systems do not
pick up the message. Answering machines and voice mail will not affect or stop the
call-out sequence in any way.

4.2 Extending the Temperature Sensor Length:

The temperature sensor may be extended using standard, four conductor telephone
extension wire up to 100 feet (30.5m) from the FreezeAlarm unit. Extending the sensor
more than 100 feet will increase the temperature that the FreezeAlarm senses by about
1°F/C for every 100 feet added. In other words, an extension of 600 feet would give
you a temperature that is approximately 5°F/C higher than the actual temperature.
The connection at the end of the temperature sensor that normally plugs into the
FreezeAlarm is a male RJ9 connection. This is a smaller connection than a regular
telephone line. You can either make or purchase an RJ9 extension wire, or purchase
our extension kit which includes connections that allow you to use standard four
conductor telephone wire available from any hardware store. This extension kit will be
available in late 2005.. Note that if you are extending sensors outdoors and/or
underground, consideration should be given to using shielded wire inside metal conduit.
Both shield and conduit should be connected to a ground. This helps prevent stray
voltage from interfering with the sensor's signal.
4.3 Extending the Phone Cord Length:
You may use a longer telephone extension cable to place the FreezeAlarm unit at a
further distance from an available telephone jack. The FreezeAlarm has been tested to
operate on a phone line indoors at a distance of 1,000 feet (304m). Make sure you use
four conductor telephone wire. This is available at most hardware and discount
department stores. If you are extending this to the outdoors, consideration should be
given to using shielded wire inside metal conduit. Both shield and conduit should be
connected to a ground.
4.4 Back-Up Battery Options:
The FreezeAlarm has a connection for a 9 volt battery which can supply power to the
unit should the AC power be disconnected or out. A fully charged 9 volt lithium
battery will provide 10 to 15 hours of operation. During this time, however, you will
likely receive a "Battery Alarm" call from your FreezeAlarm meaning the battery has
gone below 7.0 volts. Once the battery drops to about 6.0 volts, the FreezeAlarm can
no longer operate.
If you wish to have a longer battery option, consider connecting 6 "D" cell alkaline
batteries together in series. This produces the required 9 volts of DC power and also
provides about 7 to 10 days of power from fully charged batteries. Emerson Control
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