Mier DA-500 Manual de Instalação descarregar pdf (Página 4)

INSTALLATION page 1 of 2

The Control Panel is generally located in a closet, utility room, or garage. If the only noisemaker used (remotes are

available) is the one contained within the control panel, the panel must be located where users can easily hear the

“whistle.” The control panel is not suitable for outdoor installation. Also, 120 volt AC power must be available. The ease

of routing the three-wire cable from the sensing probe should be considered when deciding the location of the panel. The

control panel is usually attached to the wall with screws.

Improper installation is the No. 1 reason for system malfunction. Please use caution when installing the sensing probe to

assure a properly operating Drive-Alert.

The probe’s sensor is a coil of wire wrapped around an iron rod. Its resistance is 700-1100 ohms. The red and black wires

connect to the coil. It is encapsulated in epoxy to protect it from physical damage and moisture.

DO NOT CUT OR NICK THE CABLE JACKET!

If moisture enters, false alarms will be the result!

Mier HIGHLY recommends burying the cable within 1/2-inch PVC pipe for added protection to the cable.

The cable is made with an extra thick outer cover. There is a foil wrapper surrounding the red and black wires. There is

a silver (bare) wire in the foil. False alarms will occur if moisture gets into the foil wrapper. Nicks in the outer cover and

improper splices allow moisture to enter the cable. As moisture enters the cable, the resistance decreases. Resistance

between the red or black wire to the shield wire must be innite. (Use meter with ability to read resistance above 20 million

megaohms).

The ideal installation is without any splices. The use of cable other than that which is designed for the Drive-Alert is

undesirable. Improper splices and unsuitable cable are major causes of false alarms. If splicing is unavoidable, splice the

cable using a 3M SLiC-TM SPLICE KIT, or equivalent. The splice kit is available from Mier Products.

The sensing probe does not know if it is in or out of the ground, but it must remain absolutely motionless. Most probes are

buried 6 inches deep and parallel to the driveway. Be sure to protect it from physical damage.

The cable is made for direct burial in the ground. Do whatever is necessary to protect it from physical damage to the outer

cover, such as using 1/2-inch PVC pipe.

The probe responds to changes in the magnetic eld around it. The signal produced by the coil is a few micro volts for a

fraction of a second. The probe and cable must not be within 20 feet of electric wires because they have changing mag-

netic elds of their own. Never bury the sensor in the same trench with other electrical wires, including telephone wires

and wires for lights, bells, etc.

You may wish to place a sensing probe atop the ground in the general area of where you wish to bury it, and connect the

cable to the control panel. This will allow you to TEST the system in application BEFORE nal installation. It would be

acceptable to leave the sensing probe and cable above the ground for a couple of days, but make certain it is not

damaged during this period. This method should not be used permanently. See OPERATIONS INSTRUCTIONS for

adjustments which may be necessary.

The burial of the probe is ideal in the center of the area being monitored, but often is not practical. If a new driveway is

being put in, the sensing probe could be buried a minimum of 12-24 inches deep. In case you wish to place the sensor in

the center of the drive, the cable and sensing probe could be placed in a 1 1/2 inch piece of PVC to provide protection.

The cable should also be protected whenever vehicles move over it.

The usual installation of the sensing probe is parallel to an already existing driveway. In this case, the probe can be buried

6 inches deep, and the cable simply placed below the grass line. However, if vehicles are going to travel directly over the

probe and cable, they should be buried deeper.

The sensing probe may be placed up to 5,000 feet from the Control Panel. Up to 4 sensing probes can be attached to one

panel, but each additional probe reduces every probe’s ability to detect. The Drive-Alert will not know which sensing probe

detects a vehicle.

800-473-0213 | [email protected] | www.mierproducts.com

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