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9. Radio specifications
LoRaWAN
Frequency band
Transfer protocol
Radiated power
Class
ADR (Adaptive data rate)
Activation type
Wireless M-Bus
Frequency band
Tranfer protocol (Payload)
Radiated power
Mode
Modulation
10. Safety information about radio
Use in EU:
Hereby, GWF AG declares that the electronic register ERH is in
compliance with Directive 2014/53/EU. The full text of the EU
declaration of conformity is available at the following internet
address: www.gwf.ch
For use in United Kingdom:
Hereby, GWF AG declares that the electronic register ERH is in
compliance with Radio Equipment Regulations 2017 No. 1206
as amended. The full text of the UK declaration of conformity
is available at the following internet address: www.gwf.ch
11. Device Dial
A
B
E
D
C
11.1. Device Display
A
<
<
Lm
T
3
/h
<
G
F
E
D C
B
A. The cumulated volume is displayed in m
B. Measuring Unit (factory setting): m
for flow rate.
C. If low battery icon occurs, the whole meter must be re-
placed within 183 days.
D. The alarm icon occurs in case of a meter alarm. For details
see chapter 11.5.
E. The radio icon shows the actual state of the radio commu-
nication.
868 MHz
GWF specific
max. 14 dBm (25 mW)
A
Yes
OTAA
868 MHz
EN 13757-4 (OMS
)
®
max. 14 dBm (25 mW)
C1, C2
FSK
Unico2e, MTK3e, MTW3e
A
Manufacturer
B
Radio communication
(License free 868 MHz
frequency band)
C
NFC interface
D
Device approval
E
Radio interfaces
Unico2e, MTK3e, MTW3e
A
Cumulated Volume (9 digits)
B
Measuring Unit
C
Low battery icon
D
Alarm icon
E
Radio icon
F
Test Mode
G
Active communication mode
.
3
for volume, m
/h or L/h
3
3
F. After setting the meter in Test Mode by using additional
tools, the letter "T" occurs in display.
G. The arrow shows the active radio interface on the dial.
11.2. Delivery Status
m
3
At the end of the production (factory setting), the meter is in
energy saving mode (stand-by mode). In this mode the radio
transmission function is not yet activated in order to save bat-
tery power during shipping and stock. However, the meter can
count the consumption.
11.3. Operating Mode - Radio Activation
Once the meter is installed, the radio transmission activates
automatically after 5 liter volume within 3 min passed through
the meter --> Operating mode is active
Depending on the radio transmission type at ordering, one
of the following three radio transmission is possible:
11.3.1. LoRaWAN
If the meter is programmed in factory for LoRaWAN, the join
process (up to 3 min) to LoRaWAN network starts. Display
shows the following symbol
it will be repeated once a day. The symbol remains as follows:
(1 dot, 1 bar). If join process was successful, the symbol
(1 dot, 2 bars) is displayed. Additionally, the displayed arrow
shows towards LRW on dial.
<
11.3.2. Wireless M-Bus
If the meter is programmed in factory for Wireless M-Bus, the
display shows the radio icon
row shows towards wMBus on dial.
<
11.3.3. LoRaWAN & Wireless M-Bus (Dual)
If the meter is programmed in factory for LoRaWAN & Wire-
less M-Bus (Dual Mode), the join process (up to 3 min) to Lo-
RaWAN network starts. The display shows the following symbol
(1 dot, 1 bar). If join process was successful, the radio icon
changes to
(1 dot, 2 bars). Additionally the displayed arrows
show towards Dual and LRW on dial.
<
<
In case of an unsuccessful join process, the radio icon changes
to
(1 dot, 2 bars), but the displayed arrows show towards
Dual and wMBus.
<
<
The meter transmit radio protocols acc. Wireless M-Bus.
(1 dot, 1 bar). If join process fails
m
3
. Additionally the displayed ar-
m
3
m
3
m
3
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