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SSM-ICON
Use, maintenance and warning manual
Static SmaRt mEtER
|
GENERaL iNFORmatiON
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REV. B
EN
2.4.1 - REFERENCE OPERATING CONDITIONS
the reference operating conditions to calculate the life span of the batteries are described in the UNi/tS 11291-11-1 and
11291-12-1 standards. an extract of these standards is found in tab. 2.4:
Operative
condition
Reference indications
User interface
10 minutes per month (local interface).
20 minutes per month (Display).
Shut-off
valve
(optional)
2 handling cycles (opening/closing) every year.
Upgrade
firmware code
twice in 15 years.
Communication
GPRS Version:
• 1 communication per day (recording = 30 sec., communication = 20 sec.).
Version NBiot:
• 1 recording per year;
• 1 communication per day.
Version RF169:
• 4 transmissions per day (tx totaliser value);
• 1 communication per day (tx/Rx).
Tab. 2.4.
In addition to that defined by the UNI/TS 11291-11-1 and 11291-12-1 standards, the room temperature effects the life
span of the batteries. The operating profile used to calculate the battery life expectancy is indicated in Tab. 2.5:
Reference indications
Ambient temperature
0.25% of the time at -25 °c
0.5% of the time at -20 °c
2.6% of the time at -10 °c
41.0% of the time at +5 °c
43.0% of the time at +20 °c
11.8% of the time at +35 °c
0.5% of the time at +50 °c
0.25% of the time at +60 °c
0.1% of the time at +70 °c
Tab. 2.5.
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