Details Of The Functions And Alarms; Functions; Function Details; Alarms Details - Diehl Metering IZAR RC 868 i G4 Guide Utilisateur

2.3 D
ETAILS OF THE FUNCTIONS AND ALARMS
2.3.1 F
UNCTIONS
Functions of IZAR RC 868 i G4
 Real-time metering / reverse metering
 Battery status
 Leak alarm (current or historic) + detailed information
 Meter-stopped alarm
 Radio disconnection alarm (current or historic)
 Overflow alarm
 Underflow alarm
 Secondary index (annual, monthly, weekly etc.)
 Backflow alarm
Diehl Metering sets all the parameters by default provided that the handheld computer and
software are supplied by Diehl Metering.
2.3.2 F nction details
U

Standard index: the index transmitted by the radio is a real-time index. It takes into account
any backflow.
11 Secondary indexes: this may be weekly, monthly (i.e. the first of each month) or annual

(i.e. January 1st of each year).

Remaining lifetime of the battery: this is indicated in six-month intervals at each reading.
The typical lifetime is up to 15 years when the temperatures are distributed evenly within
the ranges given below:
Temperature range
+5°C to +30°C
+30°C to +55°C
NB: an extended use at high temperatures will cause a loss of battery autonomy. If, for example,
the module is permanently at +55 °C, the life expectancy of the radio will be reduced to 10 years.
2.3.3 A
LARMS DETAILS
The following alarms may be activated during programming:

Leak detection: the alarm is set if, during a defined period of time T, the radio has not
detected at least one zero pulse time window t, i.e. if there is continuous consumption for
several days.
The following detailed information is provided:
o Number of leaks
o Date of the last leak
o Leak duration (in days)
o Estimated leak volume
o Cumulated duration of the leak(s)
o Estimared cumulated volume of the leak(s)

Meter stopped or blocked: the alarm is set if no pulse has been recorded for a
programmable period of time, in general several weeks.

Overflow: the alarm is set when a Q1 programmable flowrate is exceeded during a
programmable D1 duration. This function makes it possible to determine if a meter's size is
too small for the requirements, meaning that it could become damaged.

Underflow: the alarm is set when a Q2 programmable flowrate is never exceeded during a
programmable D2 period. This function makes it possible to detect meters that are too large
for the requirements.

Radio disconnected: the alarm is set when the radio is disconnected from its meter. This
alarm goes is set 15 minutes after disconnection.
05/2015
%
90% of the time
10% of the time
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IZAR RC 868 i G4 | 5