Technical Manual

Chapter 5 • Maintenance
D C U M a i n t e n a n c e a n d O p e r a t i o n M a n u a l 31
CHAPTER
5
M AINTENANCE
The Data Collector Unit (DCU) is designed to minimize maintenance
requirements. Performance of the DCU can be monitored via the diagnostic
information sent regularly to the AclaraONE headend. DCU battery voltage,
charging current, temperature, and radio frequency interference can be monitored
through AclaraONE displays, which allow quick detection of problems such as
faulty batteries, damaged antennas or solar panels.
When it is necessary to visit a DCU site for maintenance, a routine inspection the
installation site, as well as of all components should be made. This can help to
identify and avoid future maintenance needs.
Inspecting the Site
Observe All Safety Precautions
CAUTION DCUs tend to be mounted in elevated locations and are electrically powered.
Observe all safety precautions when servicing the DCU. Be aware of your
surroundings and of changing weather conditions which may result in lightning,
rain downpours and/or gusts of wind which could impact your safety. Take
appropriate countermeasures as the situation requires.
Survey the Site
Your visit should begin with a survey of the location. Check the area for downed
lines.
Disconnect power before servicing. Observe all appropriate lockout/tagout
protocols. The DCU is built to operate for many hours on battery power.
Inspect the Mounting
Ensure that the DCU and its antennas are mounted securely.
• Inspect bands to ensure they are not cracked, damaged, or severely rusted.
Bands that have failed or near failure should be replaced.
• Inspect the mounting for any loose or missing nuts and bolts. Missing
components must be replaced and secured.
The rooftop DCU which is mounted to a mast and sled must also be tethered to the
building. If the tether is damaged or missing is must be replaced. A chain capable