User's Manual

Chapter 2: Installation RouteSTAR FIREFLY
Version 2.4 Datamatic.com, Ltd. 2000 – 2002 1
WATER FIREFLY INSTALLATION PREPARATION
Installation Overview - Sensor End
1. Install the optical sensor. (See instructions “Installing the Optical Sensor”).
2. Program the FIREFLY MIU (See instructions “Programming the FIREFLY MIU”).
3. Choose a method and mount the FIREFLY MIU.
4. Verify that the FIREFLY MIU is transmitting properly.
Installation Considerations
1. Signal distance varies depending on the location of the MIU. FIREFLYs installed
above ground generally transmit the greatest distance.
2. The material of a pit or vault lid affects the transmission range. For example, a
transmitter has a greater range sending from a pit with a plastic lid than a cast iron lid.
3. Lids with holes of a diameter of one inch make possible the mounting of the
FIREFLY MIU through the lid. This can increase transmission range significantly.
4. Complete field installation of an MIU takes 5-10 minutes, depending on the meter
location, and mounting application.
5. If the lid has a hole for the unit, use the cap and wing nut assembly (lid lock). Make
sure there is enough space between the box lid and the ground for the unit to sit. If
not, remove some of the dirt from the bottom of the box. Do not over-tighten lid
locks.
Installation Tips
Following are tips for FIREFLY installation that ensure maximum adhesion.
1. Use only 99% Isopropyl alcohol to prepare the meter face.
2. The most important part of installing a FIREFLY sensor on a clean register is the
Pressure step.
3. Make sure the lens is clean and dry as condensation reduces adhesion.
4. Cool weather may reduce adhesion. Avoid installing sensors in temperatures lower
than 32F.
5. Only use the specified 3M adhesive disks to adhere the sensor to the meter face.
6. Do not to touch the 3M adhesive with bare hands, as skin oil greatly decreases
adhesion.
7. Adhesion is greatly degraded if the sensor is removed from the meter face then
repositioned.
8. Loctite adhesive forms a barrier around the 3M adhesive for the 24-hour curing time.
9. Avoid handling or moving the sensor after placement while mounting the FIREFLY.