3
MID - Initial verification
zelsius
®
C5-CMF is produced and tested in
compliance with the new European measuring
instruments directive (MID). According to this
directive, devices are no longer carrying an initial
verification stamp, but rather the year of the de-
vice’s declaration of conformity (recognizable on
the front of the device, for example: M12). The
MID controls the use of heat meters up to the
moment they are placed on the market resp. their
first putting into use. After this, the national regu-
lations for devices subject to compulsory verifica-
tion apply within the EU.
The duration of initial verification validity in Ger-
many remains 5 years for heat meters. After this
period has expired the measuring device may
no longer be used for billing in commercial use.
The regulations resp. validity period may vary in
other countries of the EU. ZENNER International
GmbH & Co. KG declares that this product with
Technical data calculator
Temperature range
°C
0…105
Temperature difference range
K
3…80
Display
LCD 8-digit + additional character
Ambient temperature
°C
5...55
Minimum temperature diffence
K
3
Resolution temperature
°C
0,01
Measurement frequency
s
adjustable ex works beginning with 2s, standard 30s
Unit to read the heat consumption
Standard MWh; optionally kWh, GJ
Data storage
1 x daily
Due date values
Storage of all monthly values during the entire operating time
Maximum value storage
extensive storage of flow rate, performance and other parameters
Interface
Standard
optical interface (ZVEI, IrDA)
optional
M-Bus, wM-Bus, RS485, radio
Supply
3,6 V lithium battery (different capacities)
Battery lifetime
years
> 6, opt. > 11 (changeable during the operating time)
Protection class
IP54
EMC
C
Ambient conditions /
climatic influencing
(valid for complete compact meter)
- climatic
Highest permissible ambient temperature 55°C
Lowest permissible ambient temperature 5°C
Humidity class IP54
- mechanical
class
M1
- electromagnetic
class
E1
