Batteries; Device Battery Life; Standard Operation; Encoder For Volume Measurement - Honeywell Elster EK280 Applications Manual

EK280

8 Batteries

8.1 Device battery life

To obtain further information on other operation types listed below, please contact our applications team.

8.1.1 Standard operation

In standard operation with no special settings or sensors the CPU battery life depends mainly on the duration
and frequency of data transfer.
Example: For a weekly data transfer via the internal modem, which lasts for 15 minutes, battery life is 5 years
approx.
Conditions:
Batteries: ......................... 1 battery pack
Mode input 1: .................. NF pulse input (mode1)
Sensors: .......................... 1 pressure and 1 temperature sensor
Communication: .............. Data transfer via modem with "Ring" signal, i.e. internal GSM modem or an analog
Outputs: .......................... Not isolated (no galvanic separation)
Display active: ................. Max. 60 minutes per month
Measurement cycle: ..... 30 seconds
Battery life: ...................... approx. 5.1 years (readout duration 60 min/month)
........................................ approx. 5.0 years (readout duration 15 min/week)
........................................ approx. 5.1 years (readout duration 1 min/day)

8.1.2 Encoder for volume measurement

Conditions:
Batteries: ......................... 2 battery packs
Sensors: .......................... 1 pressure and 1 temperature sensor
Communication: .............. Data transfer via modem with "Ring" signal, i.e. internal GSM modem or an analog
Outputs: .......................... Not isolated (no galvanic separation)
Display active: ................. Max. 60 minutes per month
Measurement cycle: ..... 30 seconds
Mode input 1: .................. NAMUR protocol encoder a (mode 5)
Battery life: ...................... approx. 5.0 year (readout duration 30 min/month)
........................................ approx. 5.0 years (readout duration 10 min/week)
........................................ approx. 4.9 years (readout duration 1 min/day)
Mode input 1: .................. NAMUR protocol encoder a+b (mode 11)
Battery life: ...................... approx. 5.3 year (readout duration 60 min/month)
........................................ approx. 5.0 years (readout duration 30 min/week)
........................................ approx. 5.2 years (readout duration 2 min/day)
Application Manual
modem connected to terminals
modem connected to terminals
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