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release the button. The display now shows „EnA on" and a black triangle in all display loops (see image).
1.4.2.3 Connection to the LoRaWAN Network
To check whether the meter has already connected to the LoRaWAN network, change
from loop 6-02 to loop 6-03 by briefly pressing the button. As long as the meter is
searching for the LoRaWAN network, „LorA Pen" appears in the LCD; the time between
each connection attempt is gradually reduced to at least once a day.
As soon as the meter has connected to the LoRaWAN network, "LorA Con" appears in
the LCD.
1.5 Three additional pulse inputs (optional; only in conjunction with M-Bus or radio)
With this option, additional instruments with pulse outputs can be read out via optical interface, M-Bus or radio.
General information about pulse inputs:
It is important to note that the acknowledged state of the art technology rules and the relevant legal restraints
(international and local; see "Relevant Norms / Standards / Literature Pulse Inputs") are to be observed.
The installation has to be performed by authorized, skilled persons.
If the regulations and the information in the installation and operating instruction manuals are not strictly followed,
or if the installation is shown to be faulty, any resulting expenses will be charged to the company responsible for
the installation.
1.5.1 Relevant norms / standards / literature pulse inputs
IEC 60364-4-41 (2005-12)
IEC 60364-4-44 (2007-08)
IEC 60364-5-51 (2005-04)
IEC 60364-5-54 (2011-03)
EN 50310 (2011)
EN 1434-2 (2016)
1.5.2 Technical data pulse inputs
Pulse input class
Connecting cable length
Voltage supply
Source current
High level input threshold
Low level input threshold
Pull-up resistor
Pulse length
Pulse frequency
1.5.3 Possible combinations of the different input (class IB) and output (class OA) devices
Class OA
Class OB
Class OC
Class OD
Page 47 of 79
Article no.: 1080621031
Low-voltage electrical installations - Part 4-41: Protection for safety -
Protection against electric shock
Low-voltage electrical installations - Part 4-44: Protection for safety -
Protection against voltage disturbances and electromagnetic disturbances
Electrical installations of buildings - Part 5-51: Selection and erection of
electrical equipment - Common rules
Low-voltage electrical installations - Part 5-54: Selection and erection of
electrical equipment - Earthing arrangements and protective conductors
Application of equipotential bonding and earthing in buildings with
information technology equipment
Heat Meters - Part 2: Constructional requirements
IB according to EN 1434-2:2016
1 m
+ 3 V DC
= 1,5 µA
U ≥ 2 V
U ≤ 0,5 V
2 MΩ
≥ 100 ms
≤ 5 Hz
Class IA
Class IB
yes
yes
yes
no
no
yes
no
no
Class IC
no
no
yes
yes
2022_02_02
Subject to technical change! Errors excepted.
Class ID
Class IE
yes
no
yes
yes
no
no
no
no
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