User Manual

Setup and Configuration 5-2
SmartPoint Module for the Elster A3 Meter ECMTM40000
5.2.2 Meter Sample Rate
The 3-bit field indicating how often the meter is read using the Elster interface. The meter is sampled
without dither and is synchronized to the top of the hour by a real-time clock. The field is defined as
shown in the table below (6-7 are reserved):
5.2.3 Supervisory Transmit Rate
The 5-bit field indicating how often RF messages are autonomously transmitted. RF Transmissions
are randomly dithered in time from 0 to +/- 20% in time in order to avoid repetitive on-air collisions by
different end-point devices. The field is defined as shown in the table below:
Field Value
Meter Sample
Rate
0 5 minutes
115 minutes
2 1 hour
3 6 hours
4 12 hours
5 24 hours
6 Reserved
7 Factory Sleep
Field
Value
Supervisory
Transmit Rate
20%
Variation
Total Range
0 1 minute 12 sec 48 – 72 sec
1 5 minutes 1 min 4 – 6 min
2 15 minutes 3 min 12 – 18 min
3 30 minutes 6 min 24 – 36 min
4 45 minutes 9 min 36 – 54 min
5 1 hour 12 min 48 - 72 min
6 1.5 hours 18 min 72 – 108 min
7 2 hours 24 min 96 – 144 min
8 2.5 hours 30 min 120 – 180 min
9 3 hours 36 min 144 – 216 min
10 3.5 hours 42 min 168 – 252 min
11 4 hours 48 min 192 – 288 min