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IWM-LR4
LORAWAN radio module for B METERS water meters
Product description
The IWM-LR4 module is a device that allows to transmit the reading data detected by WDE-K50 water
meters manufactured by B METERS.
The device is already preconfigured in OTAA mode with preset keys. The keys (DevEUI, AppEUI and
AppKey) are provided by BMETERS. For various needs, the modules can be configured in Activation
By Personalization (ABP) mode via Android App. The application allows you to configure the module
by choosing the different operating options. Please refer to the configuration app manual for a
detailed description of the configuration features and options available.
Package Content
IWM-LR4 module with aluminum sticker already applied
Mounting screw
Anti-tampering sticker
Installation guide
Technical data
Working temperature: From +1°C to +55 °C
Power supply voltage: Lithium battery 3V Li-SOCI
– 2,4 Ah*
2
Maximum battery duration: 10 years**
Radio interface: LoRaWAN @868MHz [<25mW]
Configuration: by using Android App + NFC Device
Protection level: IP68***
Transmission range: up to 5 Km****
Dimensions: (l x d x h): 100 x 100 x 57 mm
Weight: 167g
* Batteries are not replaceable, DO NOT ATTEMPT TO REPLEACE. Any attempt will void the warranty,
moreover will irreversibly damage the device.
** The battery life strongly depends on the working time window, set during the configuration process,
and on the environmental conditions. Estimation of the battery life is given by the configuration
software.
***IP68: maximum 24 hours of continuous submersion at 1 m depth
****Under optimal propagation conditions, the radio range depends on physical conditions (building
constructions, climatic conditions, ...) where propagation of the radio signal can therefore vary.
Installation
The installation of the IWM-LR4 module is allowed on the WDE-K50 meters only (from DN50 to
DN200).
It is recommended to install the IWM-LR4 module away from metal objects or any potential radio
shielding, in a place protected from tampering.
Provision the network server in which you want to integrate the sensor (AppEUI) and provide the
application server with the unique DevEUI and AppKey keys. The installer has the task of checking the
propagation conditions of the radio signal during installation.
Commissioning
Make sure that you have respected the installation conditions described above and that the module
is positioned within the operating range of the LoRa gateway installed.
Remove the aluminum sticker applied on the bottom of the module to initialize it and send joining
requests to the desired network server. Wait few minutes (maximum 10) and verify that the module
has joined the network server. Now connect the module on the meter as shown in the pictures and
proceed with the configuration of the K index (10 for all diameters up to DN125 included or 100 for
diameters DN150 and DN200). Before proceeding with this, it is necessary to read the module to avoid
incorrect LORA keys writing.
It is necessary to combine the hooks of the meter with the ones on the module [1]. With one hand
keep the meter steady, with the other hand push the module gently towards the dial [2] and pull it in
the direction shown by the arrow [3/4].
Configuration by using Android App + NFC Device (for ABP mode or parameter modification):
to initialize the configuration process, place the NFC antenna of the android device near the module
as shown in the picture. For the complete configuration instructions, please refer to the app manual.
Check on the reading software/web application the correct data collection and check that no alarm is
active. To avoid possible frauds on the module, it is recommended to tighten the mounting screw
supplied and apply the adhesive seal.
IWM-LR4_QUG
IWM-LR4 activation/configuration:
Activation by removing the sticker
Configuration via NFC
IWM-LR4 installation:
Step 1
Step 3
IWM-LR4 sealing:
Quick User Guide
Safety
During the installation process, handle the device with care, don't crush, don't bent, don't
exposure to electrostatic discharges which could damage permanently the device, do not install
close to heat sources (radiators, conditioners, convectors etc..).
The IWM-LR4 module doesn't contain hazardous materials in accordance with European
directives 91/157/EEC, 93/86/EEC, and 2002/95/EC(RoHS). The device requires specific disposal
on the end of its lifetime. Recycling is mandatory or recommended following the Directive RAEE
2012/19/UE inside European Union region, or anyway dispose in accordance with local laws and
regulations. Do not burn, or undergo to high temperatures.
The IWM-LR4 works reliably in the environmental conditions specified in this manual. Any
unauthorized intervention and/or modification may cause malfunctions or total damaging of the
product.
Warranty
The warranty period is set at 24 (twenty-four) months from the date of the shipping of the material.
Warranty is against defects in materials or workmanship when the product is properly used and
maintained in normal efficiency. This Warranty is valid and enforceable in the country where the
product was purchased. In the event that the product has been purchased in a country of the
European Union, the warranty is still valid in all countries of the Community.
To obtain warranty service, it is requested to comply with the following clauses:
1.
Products must be delivered for repair at the expense of the customer.
2.
The product warranty will be subject to the exhibition of a tax document (receipt, receipt or
bill of sale), which attests to the date of purchase of the product.
3.
The repair will not affect the original date of expiration of the warranty and will not involve
the renewal or extension thereof.
4.
If at the time of the repair, the product has not any defect, it will be charged the costs of the
technical analysis.
5.
The warranty is void if the failure was due to: impacts, falls, misuse or abuse of the product,
use of non-original batteries, accidents, product alteration, replacement/detachment of seals
and/or product tampering. The same also does not cover damage caused during transport if
Step 2
packages used are unsuitable.
6.
The warranty is not covering the battery of the product.
7.
The warranty does not cover the inability to use the product, other costs incidental or
consequential damages or other expenses incurred by the purchaser.
8.
The warranty doesn't cover damage to the product caused by usage in any other way than
described in this manual.
Support on the products
If the product needs to be sent to the technical assistance, contact your dealer or contact the
BMETERS After sales service at support@bmeters.com.
Step 4
Declaration of Conformity
Hereby, B METERS, declares that this IWM-LR4 is in compliance with the essential requirements and
other relevant provisions of Directive 2014/53/EU.
The complete declaration can be downloaded from the official website www.bmeters.com.
Contact Info
B METERS Srl
Via Friuli 3
Gonars (UD) – 33050
Italy
Tel: +39 0432 931415
Fax: +39 0432 992661
E-Mail (sales/information):
info@bmeters.com
E-mail (technical support):
support@bmeters.com
Web:
www.bmeters.com
v1.2
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