Viotel Limited Version 2.1 V21 Accelerometer Node User Manual

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Viotel Limited Version 2.1 V21 Accelerometer Node

Viotel-Limited-Version-2-1-V21-Accelerometer-Node-PRODUCT

OVERVIEW

The Viotel Accelerometer Node is a low-touch IoT device designed to be installed and activated with minimal user effort. It monitors for events, can upload data over integrated LTE/CAT-M1 cellular communications, and uses GPS for time synchronisation when comparing events between nodes.

Specifications

Device / Model Viotel Accelerometer Node, Version 2.1
Battery Battery pack (pre-installed into the node)
Wireless / Comms Integrated LTE / CAT-M1 cellular communications (data retrieval via cloud platform/API)
GPS Used for time synchronisation where comparison of events between nodes is required
Dimensions (mm) A (Internal Antenna): 150; A* (External Antenna): 160 (height varies depending on antenna); B: 60; C: 120
Mounting options Two-sided adhesive; Threaded M3 holes; Side mounting holes for M5 countersunk bolts or screws
External power input 5.0–7.5 V DC (1 A max)
Required tools (installation) No tools required other than hand tools specific to your installation scenario
Tools (battery change, may be required) T10 Torx screwdriver; thin needle-nose pliers
Firmware reference in manual Firmware version referenced: 3.02.14 (future versions may change some functionality)

Quick Setup & Use

  1. Mount the node using one of the supported options: two-sided adhesive (clean/dry surface, press and hold ~20 minutes), threaded M3 holes, or side mounting holes for M5 countersunk bolts/screws.
  2. If using an external antenna option, ensure both antennas are plugged in before operation.
  3. Activate with the magnet: By default, the node is Off. Hold the magnet at the spot located directly behind the “O” on the Viotel logo. Release at that position to send the specified command.
  4. Switch states (On/Off): Hold the magnet for 4 seconds to switch On/Off. When On, the device records data per the selected mode and checks for triggers and magnet inputs; when Off, it checks for wake-up commands (e.g., magnet) and initiates a connection every 7 days for status updates and system update checks.
  5. Use the STATUS LED feedback: At each function, the STATUS LED lights once and indicates the current status.

Introduction

Warning

  • This guide intends to assist in the preferred mounting, operation, and usage of Viotel’s Accelerometer Node.
  • Please read and completely understand this user guide in order to make sure the safe and correct use of the system, as well as to maintain the longevity of the node.
  • Protection provided by the equipment may be impaired if used in a manner contrary to this user manual.
  • Changes or modifications not expressly approved by Viotel Limited could void the user’s authority to operate the equipment.
  • If the external antenna option is selected, both antennas must be plugged in before any operation occurs.
  • This product must not be disposed of in the normal waste stream. It contains a battery pack and electronic components, and so should be recycled appropriately.

Theory of Operation

  • The Accelerometer is a low-touch Internet of Things (IoT) device. It is designed to be as simple as possible to install and activate — set and forget. Data is retrieved from the device via our cloud-based platform, or via API to yours, using the integrated
  • LTE/CAT-M1 cellular communications. The device also uses GPS for time synchronisation where comparison of events between nodes is required.
  • The device sensor is always monitoring for events and can be continuously monitored or set to a triggered state. Remote configuration is possible to change the acquisition and upload frequency.

Parts List

  • The Viotel Accelerometer has optional additions including external antennas, external power, and mounting kits. Please contact sales@viotel.co before ordering.

Table 1 Parts list

Part Qty Description
1 1 Accelerometer Node
2 1 Battery pack (pre-installed into the node)
3 1 Cap
4 1 Magnet

Viotel-Limited-Version-2-1-V21-Accelerometer-Node-FIG-1

Required Tools

  • Tools are not required for installation other than hand tools specific to your installation scenario. The following tools may be required for changing the batteries.
  • T10 Torx screwdriver
  • Thin needle-nose pliers

Dimensions

Viotel-Limited-Version-2-1-V21-Accelerometer-Node-FIG-2

Usage

Mounting Options

  • Viotel’s Accelerometer Node comes with three primary mounting options. It is recommended that a combination of two is used for optimal results.

Table 2: Mounting options

Mounting Description
1. Two-sided adhesive Clean and dry the mounting location surface. Peel off the red plastic layer on the back of the node and firmly press it onto the required location.

Keep the device and surface under this same pressure for approximately 20 minutes to achieve 50% bond strength at room temperature.

2. Threaded M3 holes Suitable for the optional pole mount bracket, or for mounting to an enclosure.
3. Side mounting holes Side mounting points designed for M5 countersunk bolts or screws.

Orientation and Magnet LocationViotel-Limited-Version-2-1-V21-Accelerometer-Node-FIG-3

The switch that the magnet (Part 4) operates on the Accelerometer (Part 1) is located directly behind the “O” on the Viotel logo.

Operating Instructions

Operation

  • By default, your Viotel Accelerometer Node will be set to Off. Wherever instructed to hold the magnet in place, do so at the spot indicated in section 2.2 Orientation and Magnet Location. Releasing from this position will send through the specified command.
  • At each function, the STATUS LED will light once, in the colour representing its current status.
  • All operations and LED indications refer to firmware version 3.02.14. Please be aware that future firmware versions may change some functionality. The current firmware version for your device is shown in myViotel.

Table 3 How to switch between states

Hold instructions Function Description
Hold 1 second Current status This will light the LED indicating the current status that the system is in.
Hold 4 seconds On / Off This will stop all operations and switch the current status.

While On: the device will consistently record data given the user- defined mode, check for firmware updates, monitor for user- defined triggers, and check for magnet inputs (Part 4).

While Off: the device will check for any wake-up commands, such as the magnet (Part 4). Every 7 days the device will initiate a connection to provide status updates and check for system updates. It then returns to Off status unless otherwise specified by the server.

Viotel-Limited-Version-2-1-V21-Accelerometer-Node-FIG-4

Modes

Table 4 Description of device modes

Status Description
Trigger The node will continuously monitor and collect raw data, sending data only once an event has occurred. State-of-health information is still sent at regular intervals.

This mode supports two trigger states.

Ratio of averages: the node will send data relating to a trigger caused by the exceedance of the ratio between the short-term average (STA) number of samples and the long-term average (LTA).

Fixed value: the node will send data relating to a trigger caused by the exceedance of a predefined upper and lower threshold.

Continuous The node will continuously monitor, record and upload raw data. State-of-health information is sent.

System Status Indicator

Table 5 System status indicator

Light Interval Meaning Description
Green blink twice (100 ms) every 30s On Device is On.
Green blink / blue blink   Initialisation The device is initialising and will return to its previous state. Only seen when power is first connected.
Solid blue   Off Device is Off.
Purple blink   Command confirmation Device has confirmed the command from the magnet.
Solid red (300 ms)   No device action, or device is busy The device is currently busy and will not accept commands.
Yellow blink   Event detected While in Trigger mode, the device indicates when an event is triggered.
Blank N/A Off Device is Off.

System Communications Indicator

Table 6 System communications indicator

Light Interval Meaning Description
Green / red blink alternating   Firmware update Firmware update requested, downloading and installation underway.
Yellow blink (100 ms) every 1s GPS fixing The device is currently acquiring a GPS signal.
Solid yellow 1s GPS fixing The GPS signal has been acquired and a valid position obtained.
Solid red 1s GPS fixing The GPS signal has not been acquired and failed to get a valid position.
Solid red 2s Communicating The device has stopped communicating, having failed to report any data.
Blue blink twice (150 ms)   Communicating The device has begun communicating and the network has successfully connected.
Blank N/A N/A Device is not communicating.

Maintenance

  • The product should not require any maintenance after installation. If the need to clean the product should arise, use only a damp cloth and mild detergent. Do not use any solvents, as these may damage the enclosure.
  • Only service personnel authorised by the manufacturer may open the inner enclosure. No user-serviceable parts are located inside.

Changing Batteries

Table 7 Changing the battery

Step Description
1 Ensure the node is Off before proceeding.
2 Using the T10 Torx screwdriver, unscrew until the 4 bolts on the front of the node’s enclosure are loose. Note that the bolts are designed to remain in the device section.
3 Flip over the top half of the enclosure so that the battery pack is clearly visible. Position two fingers around the battery and firmly pull up; the battery should pop out of its holder. Ensure you do not pull or rip the red and black cables attaching the battery pack to the device.
4 Gently pull out the exposed plug connecting the battery to the device. Please dispose of the used battery pack correctly, based on legislative requirements.
5 Gently push the new battery pack’s plug into the device’s socket. A pair of thin needle-nose pliers may be required to confirm it has been adequately plugged in.
6 Slide the battery pack into position and push firmly on the battery until it clicks into place.
7 Once the device is screwed back into the base, your node can be safely turned back On.

Viotel-Limited-Version-2-1-V21-Accelerometer-Node-FIG-5 Viotel-Limited-Version-2-1-V21-Accelerometer-Node-FIG-6

External Power

  • A 5.0–7.5 V DC (1 A max) supply is required to power your device. All electrical work must be carried out by a suitably qualified technician, and in compliance with local laws and regulations.
  • The installer must listen for a ‘click’ to confirm that the connector is securely sealed.
  • 7-pin connectors and power adaptors can be purchased from Viotel. See Products and Data Loggers at: www.viotel.co/products/all.

Downloading Data

  • The only way to retrieve data is over the cellular communications network. This can be activated on demand using the magnet. However, if the device is in the field and is unable to upload data, the device is programmed to keep trying in decreasing increments.
  • If after 4 days of attempting to upload it has not succeeded, it will reboot.
  • Data loss may occur during extended power-loss periods.
  • Data is deleted from the device once successfully uploaded.

Further Support

  • For further support, please email our team at support@viotel.co with your name and number, and we will get back to you.
  • Sales enquiries: sales@viotel.co · +64 9 302 0621
  • Viotel Limited
  • Auckland
  • Suite 1.2, 89 Grafton Road
  • Parnell, Auckland 1010, New Zealand
  • Company number 7540596 · NZBN 94 2904 7516 083
  • Viotel Australia Pty Ltd
  • Hobart
  • Tenancy 4, 30 Patrick Street
  • Hobart TAS 7000, Australia
  • Sydney
  • Suite 3.17, 32 Delhi Road
  • Macquarie Park NSW 2113, Australia
  • ACN 645 231 349 · ABN 34 645 231 349
  • Remote offices: Brisbane
  • Sales enquiries: sales@viotel.co
  • Technical support: support@viotel.co
  • +64 9 302 0621 · www.viotel.co
  • Australian made, New Zealand owned

Troubleshooting

  • External antenna selected, device won’t operate as expected: Confirm that both antennas are plugged in before any operation occurs.
  • STATUS LED indicates the device is busy / won’t accept commands: The system status indicator shows solid red (300 ms), meaning the device is currently busy and will not accept magnet commands. Wait until the device completes its current activity.
  • No device action or command confirmation not received: Use the system status indicator Purple blink, which indicates the device has confirmed the command from the magnet.
  • GPS not available: The communications indicator shows solid red (1s intervals) when GPS fixing fails to get a valid position, or solid yellow once a valid position is obtained.
  • Device cannot report data: If the communications indicator shows solid red for 2s, meaning the device has stopped communicating after failing to report any data, check connectivity conditions and allow time for communications recovery.
  • Firmware update in progress: If green/red blink alternating is shown, a firmware update is underway; commands may not be accepted while busy.

Documents / Resources

PDF thumbnailVersion 2.1 V21 Accelerometer Node
User Manual · Viotel Limited, v2.1, Accelerometer V2.1, 3.02.14, Version 2.1, accelerometer node, IoT device

References

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