Kombi-LWEU Manual ID10882 V24 2.2.2023 Firmware 1.0-1.
Contents Introduction .....................................................................................................................................................2 Installation .......................................................................................................................................................3 Operation .........................................................................................................................................................
Installation Mounting Select the installation place so that air can flow freely on all sides of the transmitter and that it represents the air that is to be measured. Avoid heat sources and direct sunlight. Place the device to the measuring location with one of the following ways: 3 • Mount the wall holder with two universal countersunk screws (ST 2.5 or ST 3.0). Use applicable length depending wall material. In correct orientation, the wall holder has its hooks pointing upwards.
Power supplies Kombi is powered with a 3.6V Lithium Thionyl battery pack. The device is supplied with batteries already installed, so it is ready to be used. Kombi can alternatively be powered with an external supply. When an external power supply is used, the batteries can be omitted or used as a backup supply. Use the micro USB socket to connect an external supply into the device.
If the displayed status is “Locked”, changes will not be saved to the device. Write the correct password in the “Password input” field and press enter to unlock. If displayed status is “Unlocked”, the settings and password can be changed and the menu will become locked again after menu is closed. Note that the password cannot be reset by the user. If the password is forgotten, the password reset can only be made by the manufacturer. Please make sure that the password is remembered if changed.
Cal menu The calibration menu settings are only for the manufacturer use. They are not explained in this manual.
LoRaWAN settings Conf menu Quality • Unidirectional – uplinks are sent as unconfirmed data with 1 attempt. Acknowledgement is not requested. • Bidirectional – uplinks are sent as confirmed data. Acknowledgement is requested, and up to 3 attempts are used if acknowledgement is not received. DevEUI (readonly) – shows the DevEUI of the device. Note that DevEUI can’t be modified. LoRaWAN credentials These should be only changed if manually provisioning the device to your own system.
Message format: Size 1B Name Message length (2B) Optional age field Meaning Bits 0:6 - Message length in bytes, excluding length field and optional age field. Bit 7: If 1, age field is included. Age, uint16 * 60 seconds 1B XB Message type Message data Type, e.g. 11 = Flagged utility Data based on message type Message types Message types: • 10 Formatted measurement data • 11 Flagged utility • 12 Debug The device may send other message types but those should be ignored.
Type 10 subtype 10: Measurement data for particulate matter Measurement data using bit-flags to describe which particulate matter fields are included. If the device failed to measure a value, that field will be missing. The format additionally contains status field. Size 2B Name Measurement format Value/Meaning Always 10. 1B Measurement flags Bit flags, describes which fields are included in the message. E.g. 0000 0111 = PM1 + PM2.5 + PM10. 2B 2B 0 - PM1 1 - PM2.
Example uplinks Here are some example uplinks to help clarify how the uplink payloads are structured. Bytes are presented as hex values, numbers are LSBF. E.g. consecutive bytes 0x01 and 0x23 converted to unsigned int16 equals 0x01 + 0x23*0x100. Example – normal measurement data Bytes (hex): 01 0E 0A 01 00 3B 98 09 B0 0B AD 0D E3 FB 78 05 00 Interpretation: Bytes (hex) 01 0E Name Protocol version Message length Meaning 01 – Version Message length 14, excluding length field.
Example – uplink containing 2 messages If there are more than 1 message in an uplink they are simply one after another. Bytes (hex): 01 0E 0A 01 00 3B 98 09 B0 0B AD 0D E3 FB 78 05 00 0C 0B 53 4B 83 01 00 16 59 50 AA AE BA Interpretation: Bytes (hex) 01 0E Name Protocol version Message length Meaning 01 – Version Message length 14, excluding length field.
Cleaning If there is visible dust inside the device, blow it away with pressurized air while avoiding too strong pressure. The enclosure exterior can be wiped with a damp cloth, but no drop of liquid must enter the device. Specifications Environment Storage temperature Operating temperature Protection class Enclosure material -40…+80°C, without batteries, non-condensing -30...
Range, line-of-sight Depends on installation location and environment, in good conditions 10 km Temperature measurement Sensor Measurement range Accuracy High-accuracy semiconductor sensor, Swiss -40…+125°C Typically ±0.1°C (+20...
Warnings The device must not be disposed in household waste. Observe local regulations concerning the disposal of electrical waste. The device may contain a battery. . Manufacturer Nokeval Oy Rounionkatu 107 FI-37150 Nokia Phone +358 3 342 4810 (Mon-Fri 8:30-16:00 EET) WWW http://www.nokeval.com/ Email sales@nokeval.
Declaration of conformity 16
