User's Manual

XXXXX-01 8 Eka Gas Meter Node User’s Guide
2.3 Operation
Node data is retrieved by the EkaNet Network Manager software at intervals set by the
utility company. Data consists of pressure compensated total gas consumption as of the
last time the meter was read by the Gas Meter Node.
Note: RF communications during data reporting are the single largest drain on the node’s
battery. For maximum battery life, it is recommended that the data reporting interval be set at
the maximum (once each 24 hours).
For purposes of redundancy, at least 45 days of data are stored in the node (assuming
data is recorded once per hour for a single channel). Also, at least 512 event or alarm
messages are stored in the node. Stored data is retained for at least 90 days if power is
lost.
2.4 Alarms and Events
The Eka Gas Meter Node reports the following alarms and events:
z Acknowledgement of changes to programmable parameters.
z Low Battery Alarm (sent at least 30 days before battery power is depleted). The initial
low battery alarm will be sent with the first scheduled report after the condition is
detected, and will be repeated with each scheduled report until the condition is
corrected.
z Reverse Flow Alarm. This alarm will be sent immediately, and will be repeated with
each scheduled report until the condition is corrected.
z Magnetic Tampering Alarm. This alarm will be sent immediately, and will be repeated
with each scheduled report until the condition is corrected.
z High Flow Alarm. This alarm will be sent immediately when consumption volume
reaches the threshold set when the meter is installed, and will be repeated with each
scheduled report until the condition is corrected.
z Low Flow Alarm [TBD].
z No Usage Status reports the number of days there was no gas consumption. This is
sent with scheduled reports until usage is detected.
z Leak Alarm [TBD].