
Fa'agaioiga tusi lesona
ERS Temp wM-Bus
ERS Temp wM-Bus
Fa'amatalaga Taua mo le Saogalemu
Faitau le tusi lesona a'o le'i taumafai e fa'apipi'i le masini.
Failure to observe the recommendations included in this manual may be dangerous or cause a violation of the law. The manufacturer, Elektronik System i Umeå AB, will not be held responsible for any loss or damage resulting from not following the instructions of this operating manual.
- O le masini e le tatau ona tala'esea pe suia i so'o se auala.
- O le masini e fa'amoemoe mo le fa'aoga i totonu. Aua le fa'aalia i le susu.
- The device is not intended to be used as a reference sensor, and Elektronik System iUmeå AB will not be held liable for any damage which may result from inaccurate readings.
- E tatau ona aveese le maa mai le masini pe afai e le faʻaaogaina mo se taimi umi.
- Otherwise, the battery might leak and damage the device. Never leave a discharged battery in the battery compartment.
- O le masini e le tatau ona o'o i ni te'i po'o ni a'afiaga.
- Ina ia fufulu le masini, solo i se ie susu susu. Fa'aaogā se isi ie mālū ma mago e solo fa'amago. Aua le fa'aogaina so'o se vailaau fa'amama po'o le ava malosi e fa'amama ai le masini.
- FAATUATUA - Tulaga lamatia o le pa pe a sui le maa i se ituaiga sese
Lafoa'i fa'amatalaga e tusa ai ma otaota mai Mea Fa'aeletise ma Fa'aeletonika (WEEE) Fa'atonuga 2012/19/EU
O le masini, faʻapea foʻi ma vaega taʻitasi uma, e le tatau ona lafoaʻi faʻatasi ma otaota o fale poʻo otaota fale gaosimea. E tatau ona e lafoai le masini i le faaiuga o lona soifua tautua e tusa ai ma manaoga o le Directive 2012/19/EU e puipuia ai le siosiomaga ma faʻaitiitia otaota e ala i le toe faʻaaogaina. Mo fa'amatalaga fa'aopoopo ma pe fa'apefea ona fa'atino le lafoa'i, fa'amolemole fa'afeso'ota'i le 'au'aunaga tu'ufua fa'amaonia. O masini e iai se maa lithium, lea e tatau ona lafoai ese.
Fa'amatalaga
The ERS Temp wM-Bus sensor is an indoor climate sensor that communicates on wM-Bus and measures Temperature with long expected battery time.
1.1 ERS Temp wM-Bus Attributes
The ERS Temp wM-Bus attributes are Temperature, wM-Bus, and no NFC.
1.2 Fa'ailoga
The Barcode is of Aztec type and contains DevEUI and sensor type. This label is located at the back of our device.
1.3 Fua
Measurements are given in millimeters

1.4 Main Features of the ERS Temp wM-Bus
- Wireless M-Bus mode
- Wireless M-Bus standard EN13757:2018
- Fua le vevela o le siosiomaga
- 15 years of battery life*
- Fa'apipi'i Faigofie
- IP30
- OMS 4.0 Compatible
* Depending on environmental factors
Taiala Fa'apipi'i
- Common mounting guidelines for the ERS Temp wM-Bus sensor:
- Tuu le masini i se avanoa avanoa i luga o le puipui, faʻatasi ai ma le maualuga faʻapipiʻi o le 1.6 mita.
- For best RF and measurement performance, make sure you mount the sensor with the ventilation openings vertically. See installation in chapter 2.1
- Make sure that the sensor is not placed in direct sunlight, close to heating vents, near windows, air ventilation where it may measure values that are not representative of the rest of the room.
- Do not mount the sensor in a steel cabinet. Doing so will dramatically decrease the signal coverage.
2.1 Fa'apipi'i
- Aveese le pito i tua o le masini faʻatasi ma se sikuli sikuli laʻititi.

- Install the Battery. The ERS Temp wM-Bus requires one AA battery. The battery type is 3.6V Lithium Battery (ER14505). Use battery slot A.

- Mount the back panel to the wall with at least 2 appropriate screws, using any of the four mounting holes. Alternatively attach the sensor using double sided adhesive tape.

- Attach the sensor to the back panel.
2.2 Auaunaga ma Tausiga
E leai ni vaega e mafai ona fa'aaogaina i totonu. Afai e mana'omia se auaunaga e ese mai i le sui o le maa, fa'amolemole fa'afeso'ota'i lau tufatufaina.
2.3 Fa'atinoga
Upon Installation of the batteries, the sensor will begin to transmit wireless M-Bus telegrams. The telegrams contain sensor data as well as various information about the product status.
2.4 Wireless M-bus mode
The ERS Temp wM-Bus has one mode which is C1A. And is OMS 4.0 compatible. The wM-Bus Telegram is encrypted (AES).
Fuafuaga Totogi o le Sensor
The Sensor Payload Format for the ERS Temp wM-Bus can be found on the table below.
| Byte index | Fa'amaumauga | Fa'amatalaga |
| 0 | 0xnn | L-Fanua |
| 1 | 0x44 | C-Field: SND_NR |
| 2..3 | 0x9615 | Manufacturer “ELV” |
| 4..7 | 0xnnnnnnnn | Numera fa'ailoa |
| 8 | 0xnn | Version field: 80d..84d |
| 9 | 0x1B | Device type (Medium) = Room sensor |
| 10 | 0x7A | 0x7A = short application header |
| 11 | 0xnn | Access number, increases after each transmission (0…255) |
| 12 | 0xnn | Tulaga No Error: 0x00 Any Error: 0x10 |
| 13..14 | 0xnnnn | CONFIG: Bit 3..0 = 0 Bit 7..4 = 1 to 15, number of encrypted 16-byte block, 0 if encryption = OFF Bit 12..8 = encryption mode, 5 with encryption, 0 without encryption Bit 13=1 (synchronized) Bit 15..14 = 0 |
| 15..16 | 0x2f2f | AES check (idle filler) Only if encrypted |
| 17 | 0x02 (0x32 in case of error) | Instantaneous DIF |
| 18 | 0xFD | VIF, extension table FD |
| 19 | 0x46 | VIFE, battery voltage i le mV |
| 20..21 | 0xnnnn | Ma'a vave voltage In case of error this value will be set to 0. |
| 22 | 0x02 (0x32 in case of error) | Instantaneous DIF |
| 23 | 0x65 | VIF, external temperature |
| 24..25 | 0xnnnn | Instantaneous temperature x 100 In case of error this value will be set to 0. |
3.1 Transmissions
The Product will automatically begin transmitting data after the batteries are inserted into the sensor. By default, a SND_NR telegram will be transmitted according to the table above.
3.2 Fa'amatalaga fa'apitoa
| Ituaiga | Taua | Vaega | Fa'amatalaga |
| Fa'ainisinia | |||
| Mea fa'apipi'i | ABS UL94-V0 | – | Lanu pa'epa'e |
| Vasega puipuiga | IP30 | – | |
| Fua | 76.2×76.2×22.5 | mm | |
| mamafa | 60 | g | Excluding battery |
| Fa'amauina | Mauga puipui | – | |
| Eletise | |||
| Paoa sapalai | Lithium Battery | – | Aveese |
| Ituaiga maa | ER14505 | – | |
| Tele maa | AA | – | |
| Faʻagaioiga voltage | 3.6 | V | |
| Si'osi'omaga | |||
| O le vevela o galuega | 0 – 50 | °C | |
| Susū galue | 0 – 85 | %RH | Leai se condensation |
| Maualuluga o galuega | 0-2000 | m | |
| Faailoga filogia | Fa'ailoga 2 | – | |
| Siosiomaga faʻaaogaina | I totonu | – | |
| Teuga vevela | -40 – 85 | °C | |
| Uiga fa'alogo | |||
| Va'aiga vevela | 0 – 50 | °C | |
| Sa'o lelei o le vevela | ± 0.2 | °C | |
| Fa'aoga fa'aoga | |||
| LED | Fa'ato'aga | – | |
| M-pasi uaealesi | |||
| Fa'atele | 868.95 | MHz | |
| Tuuina atu le mana | 25 | mW | |
| Fa'ailoga | Ioe | – | Faiga 5 |
| Auala M-Bus uaealesi | C1a | – | C1a (default) |
| Wireless M-Bus Standard | EN13757:2018 | – | |
| OMS Standard | 4 | – | |
Fa'atagaga
The ERS Temp wM-Bus is designed to comply with the directives and standards listed below.
| Fa'atagaga | Fa'amatalaga |
| EMC | 2014/30/EU |
| LANU MUMU | 2014/53/EU |
| LVD | 2014/35/EU |
| AOSI | 2011/65/EU + 2015/863 |
4.1 Faasilasilaga Faaletulafono
All information, including, but not limited to, information regarding the features, functionality, and/or other product specifications, are subject to change without notice. ELSYS reserves all rights to revise or update its products, software, or documentation without any obligation to notify any individual or entity. ELSYS and ELSYS logo are trademarks of Elektronik System i Umeå AB. All other brands and product names referred to herein are trademarks of their respective holders.
Fa'aliliuga
| Fa'aliliuga | Aso | Fa'amatalaga |
| 1.0 | 4/28/2025 | Muamua kopi |
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90736 Umeå
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Webitulau: www.elsys.se
I-meli: support@elsys.se
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ELSYS ERS Temp WM-Bus Indoor Temperature Sensor [pdf] Tusi Taiala ERS Temp WM-Bus, ERS Temp WM-Bus Indoor Temperature Sensor, Indoor Temperature Sensor, Temperature Sensor, Sensor |
