Flex2-Radio-LWEU / Flex2-Radio-LWNA Flex2-Module-T Flex2-Module-T-RH Flex2-Module-CS Flex2-Module-ES Flex2-Module-nSens Manual ID12085 V24 6.6.2022 Firmware 1.1-1.
Contents Introduction ....................................................................................................................................................2 Installation ......................................................................................................................................................3 Flex2-Module-T and Flex2-Module-T-RH ........................................................................................................
Flex2 transmitters are also shipped without the provisioning and the receiving system. For these versions, the user must manually configure the LoRaWAN radio parameters into the measurement module via USB. With this functionality, the effortless interchangeability of the measurement modules is lost. Flex2 series consists of several measurement modules. The applicable module must be chosen according to the measured quantities.
rings. If necessary, support the radio module by holding it in place with your other hand at the same time when pulling out the measuring module. To join them, align the small, embossed arrowheads on both modules’ housings (when they are aligned, also the labels on both modules are on the same side). Then push the measuring module straight into the radio module until the locking latches catch and click into place. The indicator led will blink shortly after the radio module is detected successfully.
• • • Unconfirmed (default): The device will transmit each packet once not expecting any acknowledgement. If the packet is lost due to a collision with another transmission or any disturbance, it is lost. Confirmed: After transmitting a packet, the device will listen for an acknowledgement from a receiver and retransmit up to two times if not getting acknowledged. If there is no acknowledgement, the device will discard the packet and decrease the number of retransmit for the next packet.
Flex2-Module-T and Flex2-Module-T-RH The T and the T-RH modules have no external connections as they measure the ambient air. There are no additional configuration settings. Sensor location Model Temperature sensor T At the bottom end of the enclosure T-RH At the bottom end of the enclosure Humidity sensor Inside the protruding filter Flex2-Module-CS and Flex2-Module-ES Sensor The CS and ES models support both RTD and thermocouple.
Wiring RTD sensor In the CS module, the RTD sensor is connected to the M12 connector. The module has a female connector. A compatible male plug with screw terminals is supplied. The plug has small terminal numbers in it. The ES model has spring loaded connector block inside the enclosure. Open the enclosure as described on page 4. Bring the cable inside the enclosure through the cable gland and connect the sensor wires to the grey block. Push down the buttons if necessary to aid inserting the wires.
Flex2-Radio modules LoRaWAN has a regional specification, called Regional Parameters (available free at www.loraalliance.org), that describes channel plans for different regulatory regions around the world. The radio module should be chosen according to these channel plans. Before using the radio module, make sure it is legal in your country. Credentials All the provisioned radio modules use OTAA activation mode.
Uplink payload structure The following tables and examples describe how the data can be extracted from the uplink payload. This information is only needed when the Flex2 device is integrated into a system that is not provided by Nokeval. Protocol for EU868 radio module The payload data format consists of a protocol version field and 1 or more messages in length-typedata format. Example payloads are presented at the end of this chapter for reference.
After the measurement flags, the measurement data is provided. Sometimes a conversion may be needed in order to get the reading right. All the needed conversions and the units they provide are described in the table below. After the measurement data, the message has a status bit flags field describing which status fields are included, similarly to the measurement bit flags. Generally, if the device failed to produce a measurement, it will have a status code to help identify the issue.
Type 12: Debug information Debug information message. This should be skipped when reading the messages. 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 uint16 equals 0x01 + 0x23*0x100.
Protocol for US915 radio module The payload data format consists of different types of messages. Each packet can hold one or several messages. Packets that hold only 1 message are in type-data format. Type 100 defines that the packet holds several messages that are in length-type-data format. Example payloads are presented at the end of this chapter for reference. Type 1 – Utility The bit flags describe the content of the message. The number of flags risen may vary between consecutive utility packets.
4 Timestamp s 3 T o 2 RH %RH UTC. Elapsed seconds since 1970-01-01T00:00:00Z Conversion: int24 / 100 Status: int24 over 8 388 352 Conversion: uint16 / 100 Status: uint16 over 65 280 C -83 886.08 .. 83 883.52 0.01 0 .. 652.80 0.01 Type 100 – Collection of types This type is used to combine several types into the same uplink packet. Bytes 1 1 X 1 X Name Type Length Data Length Data Meaning 100: Collection packet Length of the following message Message e.g.
Maintenance Battery The measurement module is powered with a 3.6V Lithium Thionyl battery pack. The pack should not be replaced by the user. Recalibration It is recommended to recalibrate the measurement module every two years. Detach the measurement module and send it for recalibration. Alternatively obtain a recalibrated module, exchange it to the radio module, and send the old module for recalibration. Normally the recalibration includes replacing the battery.
Specifications Environment Operating temperature Operating humidity Protection class Enclosure material -30...+60 °C 0-100 %RH IP65 Plastic (PC+ABS) Measurements Weight Dimensions Cable gland Radio modules: 35g Measurement modules: 70g (slight variation between models) Width 60 mm, depth 32.5 mm, height varies according to attached module T: 171 mm T-RH: 212.8 mm nSens: 292.8 mm (probe attached) ES: 197.3 mm CS: 204.7 mm M12x1.5 Power supply Batteries Typical battery life 3.
Measurement range Accuracy Thermal drift -200…+650°C Accuracy 0.05% rdg + 0.2 °C at 25 °C ambient 0.01 °C/°C Sensor type Cable length Measurement range (Linearity error) Thermocouple < 30 m mV: -30…2000mV TcB: 400…1700 °C (0.3 °C) TcC: 0…2300 °C (0.5 °C) TcD: 0…2300 °C (1 °C) TcE: -100…900 °C (0.2 °C) TcG: 1000…2300 °C (2 °C) TcJ: -160…950 °C (1 °C) TcK: -150…1370 °C (0.5 °C) TcL: -150…900 °C (0.5 °C) TcN: 0…1300 °C (0.1 °C) TcR: 0…1700 °C (0.5 °C) TcS: 0…1700 °C (0.
FCC notices for Flex2-Radio FCC ID: 2A3B4FLEX21 NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
SDoC for the sensor modules Supplier’s Declaration of Conformity 47 CFR § 2.1077 Compliance Information Unique Identifier: Flex2-Module-T Flex2-Module-T-RH Flex2-Module-ES Flex2-Module-CS Flex2-Module-nSens Responsible Party – U.S. Contact Information: The Nebraska Center for Excellence in Electronics (NCEE Labs) Nic Johnson, Technical Manager 4740 Discovery Drive Lincoln, NE 68521 Tel:1-402-323-6233 njohnson@nceelabs.com FCC Compliance Statement This device complies with Part 15 of the FCC Rules.
ISED notices IC: 28328-FLEX21 This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions: 1. This device may not cause interference. 2. This device must accept any interference, including interference that may cause undesired operation of the device.
Warnings The device must not be disposed with household waste. Observe local regulations concerning electronic waste recycling. The device contains a battery. Manufacturer Nokeval Oy Rounionkatu 107 FI-37150 Nokia Finland Phone +358 3 342 4810 (Mon-Fri 8:30-16:00 EET) WWW http://www.nokeval.com/ Email sales@nokeval.
