Due to integrated radio transmitter, presence of flat-occupant is not required when data are read. No strangers also enter the flat.
Data reading can be made by billing company employee using mobile receiving unit. Data can be also read by central reading system CRS 40 permanently installed in the building if required.
If water meters with radio modules E-RM 30 are also used, data are read simultaneously.
Every user can control current value during actual billing period and archive value for past billing period on LC display. LCD is placed for better accessibility on the top side of the fashionably designed allocator.
- current value in actual billing period
- archive value for past billing period
- control alphanumerical code
- first part of allocator serial number
- second part of allocator serial number
Protection against cheating
Heat cost allocator E-ITN 30 is equipped with electronic seal. This seal is able to recognize unauthorized manipulation and record its exact date. Data about unauthorized manipulation is transmit in radio signal.
When thermally influenced, allocator is switched to single-sensor mode. Allocator is switched back to standard two-sensor mode when thermal influence is finished. Consumption values and radiator temperatures for past 12 months can be read from the allocator memory via infra-red interface.
E-TIN 30 is intended to be installed in one-tube horizontal/vertical and two-tube heating systems with the lowest mean design heating medium temperature ≥ 35 °C and highest mean design heating medium temperature ≤ 90 °C.
|Mean design heating medium temperature||35 - 105 ° C|
|Start of count||
temperature of the sensor of the radiator temperature ≥ 23 °C
difference of surroundings temperature and mean temperature of heating medium ≥ 4 °C
|Display||5-dial LC display + 2 special symbols|
|Read out||visually, radio and infra-red interface|
continuous control of surroundings temperature, if the thermal influence is detected, allocator is switched to single-sensor mode
electronic seal records manipulation date when uninstalled
|Data backup||daily backup of measured values including real time|
|Function control||automatic, can be activated and controlled by user|
|Dimensions||100 x 37 x 33 mm|
|Power supply||lithium Battery 3,0 V|
|Material||ABS + PC / Al - F22|
|IP code||IP 42|
|Technical data of the radio|
|Operating frequency||868,95 MHz|
|Transmitting power||~ 1 mW|
|Transmission length||~ 5 ms|
|Transmission range||up to 250 m (with additional panel antenna)|
AES - 128
Block size: 128 Bit
Key length: 128 Bit
Possibilities of back plate: