MULTITECH RB90000012LF Reveal Wireless No Probe Temperature Sensor User Guide

RB90000012LF Reveal Wireless
No Probe Temperature Sensor
User Guide

www.multitech.com

REVEAL WIRELESS NO PROBE TEMPERATURE SENSOR

Reveal Wireless No Probe Temperature Sensor
Model: RBS301-TEMP-NOP
Part Number: RB00020 Rev. 1.0
Trademarks and Copyright
Copyright
This publication may not be reproduced, in whole or in part, without the specific and express prior written permission signed by an executive officer of Multi-Tech Systems, Inc. All rights reserved. Copyright © 2022 by Multi- Tech Systems, Inc.
Trademarks and Registered Trademarks
MultiTech, the MultiTech logo, DeviceHQ, xDot, and Conduit are registered trademarks and Reveal and mDot are trademarks of Multi-Tech Systems, Inc. All other products and technologies are the trademarks or registered trademarks of their respective holders.
Disclaimers
Information in this document is subject to change without notice and does not represent a commitment on the part of Multi-Tech Systems, Inc.. Multi-Tech Systems, Inc. provides this document “as is,” without warranty of any kind, expressed or implied, including, but not limited to, the implied warranties of fitness or merchantability for a particular purpose. Multi-Tech Systems, Inc. may make improvements and/or changes in this manual or in the product(s) and/or the software described in this manual at any time.
Legal Notices
See the Legal Notices section of the website for up-to-date information on MultiTech warranty, returns policy, privacy statement, terms of sale, and terms of service.
Customer Support
MultiTech offers free technical support for Reveal sensors at:
https://support.radiobridge.com
MultiTech also offers technical support plans and service packages to help our customers get the most out of their MultiTech products.
World Headquarters
Multi-Tech Systems, Inc.
2205 Woodale Drive, Mounds View, MN 55112

Chapter 1 – Product Overview

Overview

The Reveal™ Wireless No Probe Temperature Sensor measures ambient temperature without any external probes such as a thermocouple. If the temperature rises above or falls below the configured thresholds, the sensor sends an alert over the wireless network. The temperature has been calibrated with controlled temperature chambers, and is accurate to +/- 1 degree C.
Note : The temperature sensor is internal to the device making it slower to respond to temperature changes than some of our sensors. For applications that require rapid detection of temperature changes, see one of the other temperature sensor products from Reveal™, which are found at:
https://www.multitech.com/brands/reveal-wireless-air-temp-humidity-sensors

Part Numbers

Documentation

The following documentation is available at https://www.multitech.com/products/sensors.

information, design considerations, schematics, and general hardware information.| RB00020
Connection Guide| This document provides instructions and information on how to connect Reveal LoRaWAN sensors on gateways and networks.| RB00001

Chapter 2 – Preparing Sensor

Preparing an RBS301 Sensor
Sensors ship with batteries installed. There is a plastic tab over the battery, which needs to be removed.
Pull the tab out of the sensor to connect the battery. If the tab does not pull out easily, you may need to open the case to remove it.
To open the case:

1. Use a pen or similar object to press the button on the opposite side of the case.
2. Remove the battery tab. You may need to remove the battery to remove the tab.
3. Re-insert the battery and close the case.

Preparing an RBS306 Sensor

Sensors ship with batteries installed. There is a plastic tab over the battery, which needs to be removed. To remove a tab that does not pull out easily:

• Loosen screws to remove the battery tab. DO NOT REMOVE THE LID.
• Hand-tighten the lid screws to seal the case against moisture. Do not overtighten the screws.

Quick Start

Use your sensor through either the Radio Bridge Console or a third-party network. To use the Radio Bridge Console, use the following steps. To use a third-party network, refer to the Connecting Radio Bridge LoRaWAN Sensors on Gateways and Networks (RB00001) , which is available through the sensor page at
https://www.multitech.com/products/sensors

1. Create a Radio Bridge console account at: https://console.radiobridge.com/

2. Click on Devices on the left.

3. Click Add Device.

4. Select the network you want to use.

5. Specify if you want to Register Through Radio Bridge or use an existing account with the network.

6. Make sure Console Only Device is NOT selected.

7. Enter the Device Name, Device ID, and Device Key.
   Note : For easy Device ID and Key entry, scan the QR code on the device label. Then copy and paste data into the console. With the QR code, the first line is the Device ID and the rest is the key.

8. Select the model from the Device Type drop down. Model is on the device label.

9. Select the Join EUI and click Continue.

10. Review the summary and click Confirmation.

The console shows complete when the device is successfully added.

Chapter 3 – Hardware Specifications and Information

Temperature Ranges

Battery Life

The sensor uses a lithium non-rechargeable battery, capable of an estimated 200,000+ messages.
Note: Refer to the Sensor Battery Estimator.xlsx spreadsheet on the on the sensor’s product page for specific battery life estimates: https://www.multitech.com/products/sensors

Battery life depends on the number of transmissions per day. Power required for a message transmission is greater than the “sleep current” for high power radio technologies (e.g, LoRaWAN).
Different battery types deplete over time with different voltage profiles; a lithium battery maintains high voltage for the life of the battery with a rapid drop near the end of life, and an alkaline battery has gradual reduction in voltage over time. Radio Bridge devices are shipped with lithium batteries, which are the recommended replacement type.
Recommended battery: Panasonic CR123/A
Battery life estimates in the online spreadsheet assume room temperature, meaning temperatures near the maximum and minimum ratings negatively impact battery life. Battery voltage lowers in cold temperatures, and internal circuitry needs a minimum voltage to operate properly.
Note : Battery life will be reduced in cold environments leading to possible device shut down.
The battery voltage is reported by the supervisory messages and a low battery indicator. See the section on Message Protocol for details.

Replacing the Battery

Replacement battery type is listed in the Battery Life topic. To replace the battery:

1. Use a pen or similar object to press the button on the opposite side of the case.
2. Remove the battery.
3. Insert the new battery and close the case.

Mechanical Drawings

The mechanical drawings provided in this section are for the main body of the sensor. All dimensions use inches unless specified.
Indoor RBSx01 Sensors

Armored Outdoor/Industrial RBSx06 Sensors

Chapter 4 – Common Messages

Common Messages
This chapter defines the protocol and message definitions common to all Reveal wireless sensors. Common messages include basic error messages, tamper, supervisory, link quality, and downlink acknowledgments. Sensor specific messages are in the Sensor Specific Messages chapter.
Message Protocol
This section defines the protocol and message definitions for the device.
Note : MultiTech provides a web-based console at console.radiobridge.com for configuring and monitoring devices. We recommend using this console rather than the protocols defined in this section.
If not using the console, use this topic to configure the device through downlink messages and decode the device data.
Uplink Messages
The uplink messages (sensor to web application) have the following structure.

format of a message type.
Packet Count| 4 bits| A sequential number starting at 0 for the first message sent from the sensor to the cloud. It increments by one for each subsequent message. When it reaches 0xF (15 decimal), it wraps back to 0. Packet count helps identify when a message is lost. For example, if the packet count goes 2,4 instead of 2,3,4, it indicates a message has been lost. It can also help identify out-of-order or duplicate messages.
Message Type| 1 byte| Byte format is 8 bits, with 256 combinations possible.
Message Payload| 0-7 bytes| Each message type has between 0 and 8 bytes of payload data specific to the sensor. Refer to the following table for payload information.
Message| Payload| Description
---|---|---
Ox00| 5-byte reset code| Device has reset. The reset cause is represented in the 5-byte reset code payload.
Ox01| >3 (9)| Daily supervisory message (1-2 per day). The 3-byte payload contains current sensor status. Refer to Supervisory Message OxOlfor payload details.
0x02| 1-byte event| A tamper event has occurred. Refer to Tamper Message Ox02for details.
—| Sensor event| Sensor events are defined in the Sensor Specific Messages chapter.
 Oxfb|  Link quality| Sent after each downlink configuration (refer to Link Quality Message) or to periodically ping the network server (refer to Link Quality Check Period).
---|---|---
Oxfe| —| Reserved.
Oxff| 1-byte status| Downlink message ACK. Refer to Downlink ACK for more detail.

Reset Message 0x00
Every time a sensor resets it sends a reset message to the cloud.
The reset message payload is defined in the following table.

Firmware Version

The 16-bit firmware version is constructed from reset payload Bytes 2-3, where Byte 2 is the most significant byte.
Beginning with version 2.0, the format is as shown in the following table.
The original format is compatible by redefining the reserved most significant bit (Bit 15).

16-Bit Firmware Version Examples

• 0x0103 is decoded as Firmware Version 1.3
• 0x8823 is decoded as Firmware Version 2.1.3

Supervisory Message 0x01

Wireless sensors periodically send a supervisory message so the backend system can verify the device is still alive and report error conditions. The supervisory message payload include current sensor status.
You can also trigger a supervisory message. To do this:

•  Place a magnet near the triangular notch on the side of the sensor.

The following table shows the supervisory message payload:

and the device was reset.
1| Current sensor state, 1-byte. This is device specific, refer Sensor Specific Messages chapter for details.
For other devices, use the periodic reporting feature.
2| Battery level is a two-digit battery voltage. For example, if the battery voltage is 2.9V, byte 2 would be 0x29.
6-Mar| Extended sensor state, 4-bytes. Allows sensors with higher precision or multiple values to report during a supervisory event. For other devices, use the periodic reporting feature.
8-Jul| Event accumulation count is the number of sensor events since the last supervisory message. To improve battery life, can be used with the Disable all sensor events setting so only an event total is reported during a supervisory message, individual events are not reported as they occur. This feature is available in firmware v2.0 and beyond.

Tamper Message 0x02
A sensor sends a message when the tamper switch has been opened or closed through either an enclosure tamper or a wall mount tamper. The tamper message contains a 1-byte payload as shown in the following table.

Link Quality Message 0xfb
The link quality message provides a signal strength and a signal to noise measurement at the device itself. The link quality message payload is shown in the following table.

the gateway and network server. Value ranges from 1-8 for US915. For other regions, value depends on available channels.
1| RSSI of last DOWNLINK received, signed integer format values in bytes 1 and 2 in two’s complement format.
2| SNR of last DOWNLINK received, signed integer format values in bytes 1 and 2 in two’s complement format.

Downlink Messages

Downlink messages are from the cloud to the sensor and are used to configure the sensor. The sensor initiates downlink messages, since the sensor is typically sleeping with the radio turned off.
For LoRaWAN devices, a downlink can be received after any uplink within the receive window.
The following messages can be sent back to the sensor upon a downlink request.

chapter
0xfc| 3 bytes| Advanced configuration

General Configuration
Use the general configuration command to configure parameters that apply to all sensor types.

Disable Sensor Events
The following table shows the disable sensor event bit definitions.

Radio Config
The following table shows the radio config byte definition.
Note : Available in firmware version 1.4 or newer.

band duty cycle requirements, enable before production deployment. Default is disabled. Available in firmware 2.2.1 or later.
5:02| Uplink retries. LoRaWAN only. The range for uplink retries is 1-8 for confirmed messages (ACK required) and does not apply to unconfirmed messages. Default 0 (leave unchanged). Available in firmware v1.4 and above.
1| Use unconfirmed messages. LoRaWAN only. If set to use the unconfirmed messages bit, the sensor does not look for an ACK from the network server. Default is 1 (unconfirmed messages, no ACK required). EU sensors can’t use confirmed messages, setting this bit to 0 on an EU device causes an error. Available in firmware v1.4 and above.
0| Disable Adaptive Data Rate (ADR). LoRaWAN only. To enable ADR, set to 0. To disable ADR, set to 1. Default is 0 (enabled). Available in firmware v1.3 and above.

Important: The duty cycle bit must be set for production deployments in the EU868 band.
Supervisory Period
The general configuration command’s supervisory period controls the time between supervisory messages as defined in the following table.

above.
1| Period defined in minutes (1-127 minutes) Available in firmware v1.3 and above.

For example, to receive a report every 4 hours, set Byte 1 to 0x04. To receive a periodic report every 15 minutes, set Byte 1 to 0x8f.
Sampling Rate
Sampling rate controls the frequency at which devices wake from low power sleep mode to check the sensor state.
Some sensors require very little power to check the state and need to react quickly. Other sensors can be sampled at a lower rate, such 30-second or 30-minute intervals. Increasing the time between samples increases battery life.
Refer to the Battery Estimator on the Radio Bridge site for battery life estimates relative to sampling rate:
https://radiobridge.com/documents/Sensor%20Battery%20Estimator.xlsx
A value of 0 in this field leaves the sampling rate at the current value. Use the following table to determine the sampling rate if the value is not zero.
Note : Sampling period only applies to sensors that take measurements like temperature and tilt, it does not apply to sensors with binary inputs such as door/window sensors or push buttons.
This feature is available in firmware v2.0 and above.

Advanced Configuration

Use this command for advanced configuration parameters that apply to all sensor types. The advanced configuration command is defined in the following table.

Port Number
For LoRAWAN devices only. Byte 0x01 of the advanced configuration command changes the uplink port per the LoRaWAN protocol. The default port is 2, and a value of 0 in this field means to leave it at the default.
This feature is available in firmware v1.4 and above.
Link Quality Check Period
For LoRaWAN devices only. Setting this register causes the device to ping the network server periodically with a requested ack. Typically used with unconfirmed messages, this feature creates a periodic confirmed message and looks for the ack to ensure the device is still connected.
The following table shows this byte’s encoded bit definitions.
Available in firmware v2.0 and above.

Downlink ACK

The cloud app uses this downlink ACK message to verify the that sensor received the downlink message received and it was considered valid.
The sensor replies to the downlink data with a 0xFF message (downlink ACK) with the payload shown in the following table.

Chapter 5 – Sensor-Specific Messages

Uplink Messages
The following table shows sensor specific uplink messages (sensor to web application). Uplink messages common to all sensors are in the previous chapter.

with controlled temperature chambers.
2| Relative temperature measurement. The relative temperature measurement is the raw (analog to digital) measurement and ranges on a scale from 0-255. This value can be used with different calibration tables defined by the user.| Event Payload| Description
---|---
0x00| Periodic report
0x01| Temperature has risen above upper threshold
0x02| Temperature has fallen below lower threshold
0x03| Report on change increase
0x04| Report on change decrease

When a temperature is out of range, it will be reported as 0x7f (highest positive signed number) on the high end and 0x80 on the low end.
Downlink Messages
The following table shows sensor specific downlink messages (sensor to web application). Downlink messages common to all sensors are in the previous chapter.

selects one of two modes: threshold based alerts or  eport-on-change alerts. The remainder of the payload (bytes 1-6) are determined by the mode selected and defined in the next two sections.
6-Jan| Defined by Mode (See Mode sections)

Threshold Mode
Threshold mode is set when byte 0 of the payload is set to 0x00. The remainder of the payload is defined in the following table.

(disabled). Periodic reporting is described in the section Periodic Reports.
2| Restoral margin (bits 3:0 only). Default 5 degrees C. The restoral margins are unsigned values with units of 1 degree Celsius (range is 1-15 degrees C). If a restoral margin is set to 0, it is disabled. The Restoral Margin is used for the upper and lower thresholds and requires the temperature value to cross back over the threshold a certain amount before a new event is reported. This prevents excessive event messages if the temperature is at or near the threshold.
3| Lower temperature threshold. Default 10 degrees C. Thresholds are signed values with units of one degree Celsius. Range is -40 to 100 degrees C. Note that if the configuration settings exceed the maximum ratings on the sensor, the sensor may not report an event.
4| Upper temperature threshold. Default 90 degrees C. Thresholds are signed values with units of one degree Celsius. Range is -40 to 100 degrees C. Note that if the configuration settings exceed the maximum ratings on the sensor, the sensor may not report an event.

The upper and lower temperature thresholds are signed values with units of one degree Celsius (range is -40 to 100 degrees C). Note that if the configuration settings exceed the maximum ratings on the sensor, the sensor may not report an event.
For example, if an upper temp threshold set at 30 degrees Celsius and the restoral margin set at 5 degrees. If the temperature initially exceeds 30 degrees then an event is generated and a message is sent to the network. The temperature must now drop to 25 degrees and then exceed 30 degrees before another event is reported.
Report on Change Mode
Report on Change mode is set when byte 0 of the payload is set to 0x01. The remainder of the payload is defined in the following table.

If the temperature increase or decrease are non-zero, the sensor sends an alert any time the temperature changes by the specified amount. For example, if the temperature increase and decrease are set to 5 degrees, then an alert is sent every time the temperature changes 5 degrees from the last report. The temperature increase and decrease
are unsigned values with units in degrees C.
Periodic reporting is described in the section Periodic Reports.
Periodic Reports
Note : Periodic reporting is not recommended as it increases data service fees and significantly reduce battery life. Wherever possible, use thresholds or report-on-change only.
The temperature sensor can also send periodic updates. This is defined in byte 1 of both modes. A setting of 0 disables periodic reporting. The period is defined in 1 hour increments when the most significant bit is 0, and it is defined in 1 minute increments when the most significant bit is 1 as shown in the following table.

For example, to receive a report every 4 hours, set Byte 1 would be set to 0x04. To receive a periodic report every 15 minutes, Byte 1 to 0x8f.
Note that prior to firmware version 1.3, only hourly reporting is available. The firmware version can be found in the reset message and is logged on the Radio Bridge console.
Note : Note that prior to firmware version 1.3 and older, only hourly reporting is available Firmware version can be found in the reset message and is logged on the Reveal™ console.

Chapter 6 – Regulatory Information

Federal Communications Commission (FCC)
Per FCC 15.19(a)(3) and (a)(4) This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Per FCC 15.21, Changes or modifications not expressly approved by MultiTech could void authority to operate the devices.
LoRaWAN RBS301, RBS304, and RBS305 sensors FCC ID: 2APNUCMABZ
LoRaWAN RBS306 sensors: This device contains FCC IAU792U13A16858
This device contains equipment certified under IC: 125A-0055
Harmonized Commodity Description (HS Code)
The Harmonized Commodity Description and Coding System generally referred to as “Harmonized System” or simply “HS” is a multipurpose international product nomenclature developed by the World Customs Organization (WCO).
HS Code: 8531.90.9001
Export Control Classification Number (ECCN)
ECCNs are five character alpha-numeric designations used on the Commerce Control List (CCL) to identify dual-use items for export control purposes. An ECCN categorizes items based on the nature of the product, i.e. type of commodity, software, or technology and its respective technical parameters.
ECCN: 5a992.c

References

• Radio Bridge Console
• Radio Bridge Console
• Radio Bridge Console
• radiobridge.com/documents/Sensor%20Battery%20Estimator.xlsx
• support.radiobridge.com
• support.radiobridge.com/
• Wireless Temperature Sensors | LoRaWAN Humidity Sensors | MultiTech
• Legal Notices | Multi-Tech Systems
• Wireless LoRaWAN Sensors | LoRa Sensors | MultiTech

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