SUBJECT TO CHANGE WITHOUT PRIOR NOTICE
14
In the case of wired M-Bus mode only (after installing the module)
the icon
will remain permanently active (if the M-Bus module
is connected). If the module is installed and impulsive inputs are
active, the icon
will activate permanently.
If the module is momentarily disconnected, the icons
and
will start flashing on the display (1 second intervals) up to
a maximum of 4 attempts (based on the default) or on the first
successful reconnection. If the module is disconnected both icons
described above will be deactivated.
The message ‘Mod ON’
will be shown on the display (for
10 seconds) when the communication procedure between the meter
and the module is concluded correctly.
When one or more anomalies occur, the thermal energy meter will report the recorded error and show the following icon on the display
.
If the NFC or IR interface is used, the icon will blink for the duration of the communication. The register of all the anomalies present is shown
at level 8 of the consultation menu, where the abbreviation Ern followed by two digits identifies the anomaly.
The indication of error codes that are disabled by default (**) can be enabled during the production
phase of the thermal energy meter or later via NFC. The following is a list of all error codes:
9. Errors and anomalies
Temporary: (resets automatically when the correct conditions have been restored)
Permanent:(resettable only via NFC, LORA or MBUS)
Error
Name
Description
01**
Loss on HCM4
The device detects a continuous flow of >0.5*Qi for 12 hours (default). The alarm
resets when the average flow in 5 minutes is below the above threshold.
02**
Burst
If the flow rate of the meter remains continuously above Qp for 30 minutes, the alarm
is set. The alarm automatically resets when the flow rate decreases below 0,5*Qp.
03
Qmax Overflow
The error is triggered after the device operates at a flow rate greater than Qs for 10
consecutive minutes.
04**
Reverse flow
The error is triggered after a continuous reverse flow of more than 20 liters.
05**
No consumption
The error is triggered when the flow is not detected for 7 consecutive days.
06
Reverse installation
Only during the first installation, if the meter starts from 0 liters and a reverse flow >10
liters is detected.
07**
Qmin Underflow
The device operates at a flow rate <Qi and >Ql for 10 consecutive minutes.
08-09-10
Reserved
Please contact your dealer
11
End of battery life HCM4
The error is triggered when the remaining life of the HCM4 battery is less than 1 year.
12
Probe failure
Failure (short-lived) /tampering on supply or return probe. On display, in level 2, 'Err’
will be shown on the screen of the relevant damaged probe(s).
13-14-15-16
Reserved
Please contact your dealer
17
RTC Error
The error is recorded when a sudden reset of date and time is detected.
18
Flow Measurement Out-of-range
Measurement of the supply probe over the measuring range.
19
Return Measurement Out-of-range Measurement of the return probe over the measuring range.
20**
Incorrect installation
The error occurs when the probes/device are installed in reverse. Detection takes
place for 10 consecutive minutes. The error appears when the following conditions
occur:
→
Device version only ‘Heating’ (installation on return and supply): (Delta) supply/
return temperature > 0.
→
Device version ‘HCooling’:
- (Delta) supply temperature< 15 °C – return temperature > 3°C
- (Delta)supply temperature > 40 °C – return temperature > -2.2 °C
→
Negative with cooling disabled occurs after 10 minutes with continuous active flow,
and the thermal delta is negative.
21
Delta T non-compliant
The error occurs when for 24 continuous hours of zero flow rate the Delta T > 10°C.
22**
Delta T too low
The error occurs when for 10 consecutive minutes with flow > 0 the delta T is less
than the start (1 ° C for heating, 0.2 ° C for cooling).
23**
Delta T too high
The error occurs when for 10 consecutive minutes with flow > 0 the delta T (heating)
> +50 °C or delta T (cooling) >40.
