25
Instruction for Use | HCA 56x and 8x8
Date of Opening of the
Device
Each heat cost allocator is equipped with a manipulation pro-
tection which detects an unauthorised opening of the device
after installation to the radiator. The date of the last opening of
the device is recorded and displayed with the index od.
Commissioning Date
With the index Cd the commissioning date is displayed, i.e. the
date on which the device has been activated by pushing the
button or during the mounting of the aluminium back plate if
the function automatic commissioning is set.
Cumulated Duration of the
Opening of the Device
With the index du, the cumulated duration in minutes during
which the device was opened is detected. This display turns up
only after commissioning in case the heat cost allocator was
opened or removed.
Fraud Counter
This value indicates how many times the fraud / manipulation
was activated.
Identification Number
With the index an 8 digit identification number is displayed.
Ex-factory the serial number is identical with the identification
number. The first two digits of the identification number are
the two small digits on the left upper side of the digital display.
Running Hours
With the index rh, the running hours is displayed. This value
can be compared to the battery use duration.
Monthly Values
The cumulated consumption values are recorded automatically
at midnight on the last day of each month.
Number of monthly values: 36
The small digits on the upper left side show the number of pre-
vious monthly values. Digit 01 stands for the recent full month
and digit 36 stands for the least recent month. All monthly va-
lues are set to 000000 when the device is commissioned.
Note for the model 566 radio:
The radio heat cost allocator 566 only transmits the first 18
monthly values via radio telegram.
Note for the model 868 radio:
Short telegram, OMS compliant: no monthly values transmit-
ted via radio telegram.
Long telegram for Walk-by reading, the first 18 monthly values
transmitted via radio telegram.
Note for model 878 radio:
By default no monthly values are transmitted in the radio
telegram.