User's Manual

Operation: CVSO OpenWay Register
28 CENTRON® OpenWay™ Meter Technical Reference Guide
Factory Reset
To return the meter to its original factory settings, you must perform a factory reset. A
factory reset is also referred to as a “three button reset”.
All programming of the meter will be lost when a factory reset is performed.
All security codes are also cleared.
When you perform a factory reset, the original factory settings of the meter are restored.
Application of Power and Power-up
To energize all electronics, apply 240V (50/60 Hz).
Do not power up the meter if the upper and lower housing are not
properly secured. Line-level voltages are present inside the housings.
Failure to follow this procedure could result in serious personal injury
or death.
Power Down Procedures
To de-energize all electronics, remove power from the meter.
A power outage is recognized any time the line voltage drops 20 percent below the lowest
nominal point of the voltage range. With a standard single phase power supply, a power
outage occurs when line voltage drops below XX volts; with a OpenWay power supply, a
power outage occurs when line voltage drops below XX volts. When a power outage is
recognized, the OpenWay Register saves all billing values to non-volatile Flash memory.
Demand Meter
Restoration of AC power energizes the electronics and causes the meter to perform self-
diagnostic check procedures. The meter then retrieves all billing data from non-volatile
memory, begins measuring energy, and starts the process of calculating any demand values.
TOU/Load Profile Meters
All OpenWay meters have a battery installed. The battery allows the TOU and Load Profile
data in RAM to be maintained during a power outage. The battery also allows the
timekeeping circuitry in the meter to maintain the meter's clock during an outage. If a
battery is removed on a TOU/Load Profile meter during an outage, then the meter's clock
will be off by the duration of the outage and the TOU data and some Load Profile data will
be lost. Load Profile data is periodically committed to flash as described in the Load Profile
section.
Draft