13
TECHNICAL DATA
Nominal capacity
m
3
/h 2,5
Maximum capacity
m
3
/h 5,0
Temperatures range
°C 15,,,90
Calculating device
Temperature range
°C 1,,,130
Temperature difference
K 3,,,100
Power supply
Lithium 3 V Battery
Functioning duration
Years 6 + 1
Data storing
self-contained
Display
8 digit
Interfaces
Infrared / M-bus
Temperature Sensors
Type
Platinum
Connection
2-wire technique
Diameter
mm 5,0
Cable length
m 1.5
When the device shows an error, this is the symbol that is actually displayed. There are
seven likely causes that lead to the error and sometimes, they may be displayed at the
same time.
The error is displayed by means of a code format “ERR xx”. Where “xx” is for the error
number and is showed in hesadecimal form (fi g. 4).
Errors code
Fig. 4
Error codes
Err
or c
odes
(he
xadecimal)
Sum err
or
Faulty
E
2
PROM
Err
or c
odes
(he
xadecimal)
Faulty r
eel
Reset
Measur
e of
ref
er
enc
e err
or
Faulty r
eturn
temp. sensor
Faulty fl
o
w
temp. sensor
Error description
Error
Description
Effect
Possible cause
Faulty Inp. Fl. Sensor
The flow temperature sensor is
faulty
No calculation performed. The records for
flow and energy are not updated (no new
memorised data)
Cut sensor cable; removed sensor
cable
Faulty Ret. Fl. Sensor
The flow return temperature sen-
sor is faulty
No calculation performed. The records for
flow and energy are not updated (no new
memorised data)
Cut sensor cable; removed sensor
cable
Faulty Ref. sensor
Error during the measure of refe-
rence
No calculation performed. The records for
flow and energy are not updated (no new
memorised data)
The main circuit of the electronic
unit is faulty
Faulty reel
Scanning is not functioning cor-
rectly
No calculation performed. The records for
flow and energy are not updated (no new
memorised data)
Removed reel; the connecting cable
between the calculating device seat
and the flow sensor is damaged
Reset
The electronics of the calculating
device have been restored
The measurements have been lost since the
last data collection in the E
2
PROM, (at the
most the measurements for 1 day)
EMC
Faulty E
2
PROM
No communication with E
2
PROM
After re-setting, the instrument is not functio-
ning
Faulty components
Sum error
The instrument configuration in
the E
2
PROM is incorrect
No calculation is carried out. The flow and
energy records are not updated
Faulty component
When an error occurs, the instrument must be replaced and sent to the supplier for testing
