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1.4.1 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)
1.4.2 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
1.4.3 Possible combinations of the different input (class IB) and output (class OA) devices
Class OA
Class OB
Class OC
Class OD
Class OE
1.4.4 Setting up the three additional pulse inputs
The optional pulse inputs 1 + 2 + 3 for external meters can be set up using the "Device Monitor" configuration
software. You can configure serial number, manufacturer, version (0 ... 255), medium code, input pulse value, unit
and starting value of the external meters.
1.4.5 Set-up possibilities
Pulse value
1
2,5
10
25
100
250
1000
Installation notes for pulse inputs:
It is important that the pulse cables not be affected by (or exposed to) an external voltage!
Check the polarity of pulse generators with "open collector" outputs.
The cable wires must not touch each other during installation, otherwise pulses will be counted in the instrument.
When setting up the meter it may be necessary to adjust the meter reading of the instruments connected and the
pulse value using the "Device Monitor" software.
Page 20 of 50
Article no.: 1080621033
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
no
no
Units
liters / kWh / pulse without unit
liters / kWh / pulse without unit
liters / kWh / pulse without unit
liters / kWh / pulse without unit
liters / kWh / pulse without unit
liters / kWh / pulse without unit
liters / kWh / pulse without unit
Class IC
no
no
yes
yes
no
2022-02-04
Subject to technical change! Errors excepted.
Class ID
Class IE
yes
no
yes
yes
no
no
no
no
no
yes
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