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EK280
Application Manual
218
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 years (readout duration 60 min/month)
approx. 5.0 years (readout duration 30 min/week)
approx. 5.2 years (readout duration 2 min/day)
10.3.3 Additional pressure or temperature sensors
Conditions:
Batteries: .........................
2 battery packs
Mode input 1: .................. NF pulse input (mode1)
Communication: .............. Data transfer via modem with "Ring" signal,
i.e. internal GSM modem or an analog modem connected to terminals
Outputs: .......................... Not isolated (no galvanic separation)
Display active: ................. Max. 60 minutes per month
Measurement cycle: ..... 30 seconds
Sensors: ..........................
2 pressure sensors, 1 temperature sensor
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)
Sensors: ..........................
1 pressure sensors, 2 temperature sensor
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)
Sensors: ..........................
2 pressure sensors, 2 temperature sensor
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)
10.3.4 Output isolation (galvanic separation)
As described in
, each of the four pulse and message outputs (terminals "DA1" to "DA4") can
be isolated (galvanically isolated) from the rest of the EK280 circuitry. Isolation of the outputs decreases the
CPU battery life. It is therefore advisable, prior to isolation activation as described in these
chapter, to
estimate battery life.
Each pulse output via an isolated output requires additional power. The battery life therefore depends on the
following factors:
−
Number of isolated outputs