Product Info

On-Demand 1.2 Overview 13
Technical Brief
N OTE To maintain a 20-year battery life, an MTU shall be stored for less than a
cumulative week above 60° C.
The voltage reported through AclaraONE is taken from the MTU’s monthly health
message. It is important to note that the MTU sends a “Last Gasp” alarm
immediately before its battery falls below acceptable operational levels. After
sending the “Last Gasp” alarm the MTU places itself in ship mode, which means it
will no longer transmit, receive, take meter readings, etc.
To maximize battery life, AclaraONE tracks the number of on-demand reads,
reading recovery operations, remote configuration operations,
firmware-over-the-air (FOTA), and firmware-over-the-coil (FOTC) performed by
each MTU. AclaraONE warns the operator if an On-Demand read request exceeds
agreed upon usage (defined as an average of 2 per month).
Each Remote Disconnect Device (RDD) is connected to an MTU. To issue RDD
commands, you must navigate to the appropriate MTU through the AclaraONE
head end. Use following procedure to issue an RDD command.
1. Follow the menu path AclaraONE > STAR > Equipment > MTUs to view
the ports associated with the MTU.
2. Locate the Meter Type column, and then identify the port associated with
the Meter Type SETflow Smart Valve Remote Control Device. In this cases
it is Port 2.
3. Click the number in the MTU ID column associated with the RDD port.