Fault clearance
Before you look for a fault on the meter itself, please check the following items:
• Is the system running? – Is the circulation pump running?
• Are the shut-off devices fully open?
• Is the pipe free (possibly clean the strainer)?
• Is the dimensioning okay?
In case of error F -6, execute the following steps:
1
Check the meter installation.
2
Generate a positive flow.
3
Check the current flow (LCD).
4
Wait until the LCD is off again (approx. 2 mins.).
5
Press the button again.
The result of flow direction recognition is only displayed after 8s.
6
Check LCD as to whether F -6 is now off.
!
If F-6 does not cease, you must replace the meter.
Display levels
The display is switched off under normal operation. Approx. 2 minutes after the last time a
key is pressed, the display is deactivated automatically. The flow rate / temperature display
is always updated every 8s. (Without the flow rate, the temperature is only measured
every 15 minutes.)
The meter has 4 display levels.
A long button push switches between the display levels. A brief button push jumps to the
next display within a level
Key for
2
1
Readout level
1-01
Cumulated energy since
commissioning
1-02-1
Display test "everything on"
1-02-2
Display test "everything off"
1-02-3
Display test "UHF ON/OFF"
1-02-5
Due date value
1-02-6
Due date*
2
2-01
2-02
2-03
2-04
2-05
2-06
2-07
2-08
2-09
2
Service level
Cumulated volume since commissioning
Current flow rate
Inlet temperature
Outlet temperature
Temperature difference
Current performance
Next due date
Device number
Firmware version number
15