ZENNER zelsius C5 IUF - Manual (Page 3)

3
MID - Initial verification
zelsius ® C5-IUF is produced and tested in
compliance with the new European Measuring
Instruments Directive (MID). According to this
directive, devices are no longer carrying an ini-
tial verification stamp, but rather the year of the
device’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.
Technical data calculator
Temperature range °C 0...105 / 0...150 *
Temperature difference range K 3...80 / 3...130 *
Display LCD 8-stellig + Sonderzeichen
Ambient temperature during operation °C 5...55
Storage temperature °C -20...+65
Resolution temperature °C 0,01
Measurement frequency s adjustable ex works, beginning with 2s, standard 32s
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 operation time
Maximum value storage extensive storage of flow rate, performance and other parameters
Interface Standard Optical interface (ZVEI, IrDA), 3 Pulseinputs/-outputs
optional M-Bus, wM-Bus, RS485, radio
Supply 3,6 V lithium battery (different capacities)
Battery lifetime Years > 6, opt. > 11 (changeable during the operation time)
Protection class IP54
EMC A
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
- electro-magnetic class E1
Dimensioning limits may apply for non-symetrical temperature sensors installation.
* optionally
Technical data temperature sensors
Platinum precision resistor Pt 1000
Sensor diameter type mm 45 x 5,0 mm / 45 x 5,2 mm / DS 27,5 more on request
Temperature range °C 0 – 105/0…150
Cable length m 1,5 (opt. 5)
Installation
VL by direct immersion or by immersion sleeves (in case of existing measuring points)
RL
by direct immersion or by immersion sleeves (in case of existing measuring points)
Integrated in the flow sensor, optionally external