Monitor acceleration on three axes in real time

The G-Force Max/Avg Wireless Accelerometer delivers detailed, real-time G-force alerts. This broad-spectrum vibration meter can determine if a fence is swaying in the wind or vibrating as it’s being scaled. It can also detect irregularities in assembly lines, motors, and wind turbines.

This sensor reports the maximum and average g-force levels that occur on X, Y, Z, and combined axes in-between sensor heartbeats. The sensor uses a digital, low power, low profile, capacitive accelerometer capable of measuring acceleration on three axes to produce this data. The turnkey, battery-powered sensor uses an accelerometer to determine which axis the force is on and max./avg. movement force. If variables exceed preset limits, the sensor alerts the user via text, email, or call.

The sensor employs a MEMS (micro electromechanical system) based accelerometer to detect forces caused by acceleration. These forces may be static such as the constant force of gravity, or they may be dynamic – caused by moving or vibrating the sensor. A user may set thresholds (defined as Delta Values in the user interface) for each axis (X, Y, Z) as well as a magnitude threshold, such that when thresholds are exceeded the sensor will trigger and report data to iMonnit immediately.

Get real-time alerts to protect assets

The sensors accelerometer uses three configurable settings (Output Data Rate(ODR), Range, and High Pass Filter(HPF)) to refine the measurement capabilities of the sensor for various applications. ODR controls the responsiveness of the sensor. The highest ODR (100 Hz) will trigger in under a second, where the lowest ODR (6 Hz) will take up to 5 seconds to trigger. The sensor is constantly measuring and higher ODRs result in short battery life. The range can be set to 2, 4, or 8 g. There is a small loss of resolution as the range increases. Generally, even at 8 g, the resolution is sufficient for most applications. When the High Pass Filter is activated the sensor filters out static g-forces such as gravity. A user may also set a re-arm time, which establishes the time after the sensor triggers before the sensor may trigger again. The X, Y, Z data correlates directly with the specified axis and the magnitude data is the summation of the absolute value of the XYZ data.

Advanced Sensor Features:

• 2G resolution
• Four data rates: 6Hz, 12Hz, 50Hz, 100Hz
• A high pass filter to remove gravity in all resolution modes and data rates
• Provides the following for X, Y & Z axes:
  • Raw, full-spectrum G-force max. & avg.
  • Magnitude max. & avg.
  • Sensor orientation

This sensor comes standard with two replaceable AA batteries. The typical battery life is approximately 10 years.

Features

• Impressive wireless range of up to 1,200 feet through walls
• Frequency-hopping spread spectrum (FHSS)
• Improved interference immunity
• Improved power management for longer battery life
• Encrypt-RF® Security (Diffie-Hellman Key Exchange + AES-128 CBC for sensor data messages)
• Over-the-air updates
• Free iMonnit basic online wireless sensor monitoring and notification system to configure sensors, view data and set alerts via SMS text and email
• Stores 2000 to 4000 readings if gateway connection is lost (non-volatile flash, persists through the power cycle)
  • 10-minute heartbeats = ~ 22 days
  • 2-hour heartbeats = ~ 266 days

Applications

• Inclination and vibration testing
• Assembly line monitoring
• Orientation sensing
• Impact load sensing
• Unauthorised access via a fence breach
• Physical barrier integrity
• Abnormal motor shake

• Wind turbine abnormalities

Gateway Options for Seamless IoT Data Communication

Monnit offers a range of gateway options designed to facilitate wireless sensor data communication within IoT networks. These gateways, serve as crucial conduits for transmitting sensor data to the iMonnit software platform and play a pivotal role in ensuring seamless and efficient data transmission for IoT applications.

Click here to explore the diverse range of gateway devices available >>

Manage Your Monnit Sensors with iMonnit Cloud-based Software

Monnit’s Sensor Monitoring Software, iMonnit, stands as a cutting-edge cloud-based platform and central hub tailored for the seamless management of Monnit sensors. With a focus on data security, all information is safeguarded on dedicated servers running Microsoft SQL Server. This intuitive online user interface serves as a command centre for arranging, monitoring, and modifying device settings to suit individual requirements.

OneTemp provides complimentary activation and setup services for new iMonnit accounts, while a free mobile app empowers users to maintain control at all times. Whether opting for the basic version or upgrading to iMonnit Premiere, users can unlock the full spectrum of features that enrich the Monnit experience.

Click here to explore the software options >>

Keep your business running smoothly with Monnit’s accelerometers

Monnit’s range of wireless accelerometers are a digital, low power, low profile capacitive sensor that can measure acceleration on three axes. Accelerometers are used in all types of electronic devices today, most notably in smartphones to change the screen orientation when rotated. Monnit offers 5 different types of accelerometers that be particularly useful in heavy mechanical environments.

Get real-time data to protect assets

The first type of accelerometer sensor is Monnit’s Tilt Sensor. This accelerometer activates at a set time interval (defined by the user) and converts measurements to pitch and roll in terms of degrees. If you think about a flying plane, pitch refers to the up and down movement, and roll refers to the clockwise or counter-clockwise rotation of the plane around the x-axis.

See the Monnit Enterprise Tilt Wireless Sensor for more information

Next are Monnit’s G-Force Snapshot and G-Force Max/Average Sensors. These sensors measure g-forces (up to 8G) on the X, Y, and Z axes. Based on the sensor you select, readings are displayed as either a single ‘snapshot’ when the sensor activates at its set interval or the ‘max/average’ of the movement since the last reading.

See the Monnit G-Force Snapshot and G-force max/Average Sensors for more information

Finally, Monnit offers an Advanced Vibration Meter. Like other accelerometers, this sensor measures G-force on 3 axes to determine speed and frequency. Sensors can be set to only capture when a vibration occurs and sleep when no vibrations are present or to measure at a given assessment interval regardless of whether a vibration has occurred or not.

See the Monnit Enterprise Advanced Vibration Wireless Meter for more information

Drop-in for deeper machine insight

These accelerometer sensors are very useful for manufacturing environments as they are primarily used to predict, and consequently prevent mechanical failure. For example, if a motor experiences increased vibration levels, this can be a good indicator that bearings are worn, and the motor is close to failure. An alert will allow engineers to respond in time to a malfunctioning machine before it completely breaks, ultimately saving time and money. Monnit’s range of accelerometers paired with an applicable Gateway and iMonnit software, make it easy to set up a system that can do this.

A complete wireless network does not have to be complicated or confusing. Monnit wants to make it as easy as possible to implement a secure cloud network into your daily business operations. Simply place these sensors on a few critical components in your factory and evaluate the results over the first week to establish a proper rhythm. Once users know what is considered normal mechanical movement, notifications can then be set up and sent to any internet-enabled device when preset parameters happen to change.

Gain deeper insights to your company’s machines today and help eliminate problems early before they become expensive and time-consuming.

 

Battery Supply Voltage	2.0-3.8 VDC (2x 1.5 V AA Batteries)
External Supply Voltage (Option)	5.0 VDC via 2.1 x 5.5 mm barrel jack (Option)
Operating temperature range (board circuitry and batteries)	-18°C to 55°C (0°F to 130°F) using alkaline -40°C to 85°C (-40°F to 185°F) using lithium*
Optimal battery temperature range (AA)	+10°C to +50°C (+50°F to +122°F)
Integrated memory	Up to 3200 sensor messages
Wireless range	1,200+ ft non-line-of-sight
Security	Encrypt-RF® (256-bit key exchange and AES-128 CTR)
Weight	3.7 ounces
Certifications	900 MHz product; FCC ID: ZTL-G2SC1 and IC: 9794A-G2SC1. 868 and 433 MHz product tested and found to comply with: EN 300 220-2 V3.1.1 (2017-02), EN 300 220-2 V3.1.1 (2017-02) and EN 60950

*At temperatures above 100°C, it is possible for the board circuitry to lose programmed memory.

 

Sensor Specifications
Current consumption	6 Hz – 32.4 uA: ~ 4 year lifetime at 10+ minute heartbeat.* 12 Hz – 36.2 uA: ~ 4 year lifetime at 10+ minute heartbeat. 50 Hz – 66.5 uA: ~ 2 year lifetime at 10+ minute heartbeat. 100 Hz – 125.6 uA: ~ 1 year lifetime at 10+ minute heartbeat.
Accelerometer Current Consumption (Based on Output Data Rate)	6Hz	12Hz	50Hz	100Hz
	32.4 uA	36.2 uA	66.5 uA	125.6 uA
Range (XYZ)	2 G, 4 G, 8 G (User Configurable)
Sensitivity	4096 count/g @ 2 G, 2048 count/g @ 4 G, 1024 count/g @ 8 G
Measurement accuracy	2.5 % (force: X, Y, Z)
Output Data Rate	6 Hz, 12 Hz, 50 Hz, 100 Hz (User Configurable)
High Pass Filter	Filters out frequencies below ~4 Hz when activated (User Configurable)
Resolution	0.001 g
Reported Data
X Max	x.xxx g, maximum g-force measured on x-axis in-between heartbeats (unsigned int)
Y Max	x.xxx g, maximum g-force measured on y-axis in-between heartbeats (unsigned int)
Z Max	x.xxx g, maximum g-force measured on z-axis in-between heartbeats (unsigned int)
Magnitude Max	x.xxx g, maximum square root of squared sum of x,y,z axes in-between heartbeats (unsigned int)
X Mean	x.xxx g, average g-force measured on x-axis in-between heartbeats (unsigned int)
Y Mean	x.xxx g, average g-force measured on y-axis in-between heartbeats (unsigned int)
Z Mean	x.xxx g, average g-force measured on z-axis in-between heartbeats (unsigned int)
Magnitude Mean	x.xxx g, average square root of squared sum of x,y,z axes in-between heartbeats (unsigned int)