If it moves or vibrates, know when and how much.

Predict the maintenance of machinery and structures to improve performance by continuously measuring fluctuating vibration. The award-winning Enterprise Advanced Vibration Meter uses an accelerometer to wirelessly monitor oscillation on three axes to capture vibration frequency, crest factor, velocity, displacement, or acceleration. The meter also reports duty cycle and temperature, helping protect vital assets and perform end-of-life analysis.

Install the data-logging meter in 15 minutes and configure the frequency measurement range within 0.4 Hz–4,200 Hz (24 RPM–252,000 RPM) to track a subtly swaying bridge or high-RPM machinery. If a monitored variable exceeds thresholds, the Advanced Vibration Meter issues an alert via text, email, or voice call.

The Enterprise Wireless Advanced Vibration Meter uses an accelerometer to measure a suite of tri-axis vibration data in addition to sensor duty cycle (a percentage of activity) and temperature. It reports this data on a user-configurable time interval or Heartbeat. In addition, the sensor can report the current, max, or average data. These measurements are sent to the gateway, making the data available in iMonnit or another approved data service.

The standard version of this sensor is powered by two replaceable 1.5 V AA sized batteries (included with purchase). The typical battery life is up to 10 years. This sensor can be ordered in both a leaded and non-leaded option.

Key Features

• Three-axis measurement:
  • Acceleration root mean square (RMS), Velocity (RMS), Displacement, or Acceleration Peak
  • Frequency
  • Crest Factor
• Measures Duty Cycle and Temperature
• Configurable Frequency Range
• Configurable Hanning filter
• Measure up to 4200 Hz / 252,000 RPM
• Configurable measurement interval as low as 1 second
• Configurable thresholds for critical condition monitoring

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

• Manufacturing—Monitoring machines, assembly lines, and equipment to help predict wear and failure, maximizing uptime through scheduled maintenance.
• Energy field services—Low-frequency monitoring of motor mounts on crude pumps. Remote monitoring replaces in-field checks, trimming operational expenses while preventing bearing blowouts.
• Field maintenance—Detecting abnormal vibrations (or temperature changes) within a duty cycle that may point to failing components. Plus, remotely monitoring high-RPM brushless motors and smart materials or structures within production facilities.
• Civil engineering—Tracking seismic activity on high-rise structures or oscillation-related stress on critical infrastructure, such as bridges. After-hours monitoring of tower cranes, generators, and other equipment on construction sites. Understanding the loads (and subsequent movement) placed on retaining walls along interstates and other vital infrastructure.
• Freight management—Collecting movement and stress placed on loading docks after being struck by cargo ships or semis. The data helps engineers buttress older installations and shapes new designs.

 

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.

 

Accelerometer	Vibration Variation over Temperature		0.01 %/°C (0.018%/°F)(xy), 0.03 %/°C (0.054%/°F)(z)
	Cross Axis Sensitivity		2%
	General Noise1	RMS	0.7 mg
		Density	130 μg/√(SampleRate)
Temperature	Transducer Type		10 KOhm NTC Thermistor (β = 3455 K)
	Calibrated Accuracy		± 1°C (±1.8°F)
	Resolution		0.1°C (0.18°F)
	Response Time		50 seconds (10 second time constant)2
Cube	Dimensions		0.75” x 0.75” x 0.75”
	Weight		17g (cube with electronics and epoxy)
	Mounting Hole		M4 x 0.7 Tapped Threads, 7mm hole depth
	Composition		Aluminum and accelerometer potted with black epoxy
	Operating Temperature		-40°C to 105°C (-40°F) to 221°F) (Electronics only)
	Operating Humidity		0 to 100% (Electronics sealed inside)
Lead	Wire Details		6-conductor, 28 AWG, stranded copper
	Operating Temperature		-25°C to 85°C (-13°F to 185°F)
	LEngth		3 m (10 ft)
	Insulation / Jacket		PVC (black), 0.010″
	Shield		Yes
	Overall Diameter		4.5 mm (0.177″)
	Ratings / Approvals		UL AWM STYLE 2464, cUL AWM I/IEC RoHS/Reach Compliant
	Temperature Rating		-20°C to 85°C (-4°F to 185°F)3
	Voltage Rating		300 V Max
	Dielectric Stength		1500 V RMS
ALTA Wireless	Data Logging		Sensor logs 2000 to 4000 readings if gateway connection is lost (non-volatile flash, persists through power cycling): 10-minute Heartbeats = ~22 days – 2-hour Heartbeats = ~266 days
	Wireless Protocol		ALTA Proprietary Frequency-Hopping Spread Spectrum (FHSS)
	Wireless Transmission Power (EIRP)		50 mW (900MHz), 25 mW (868 MHz), 10 mW (433 MHz)
	Wireless Range		2,000+ ft. through 18+ walls with the ALTA XL® Gateway
	Security		Encrypt-RF® (256-bit key exchange and AES-128 CTR)
General	Battery Voltage Range		2.0 to 3.8 VDC
	Operating Altitude (non-pressurised environments)		-15.2 to 1,982 m (-50 to 6,500 ft)4
	Storage Altitude (non-pressurised environments)		-15.2 to 3,048 m (-50 to 10,000 ft)4
	Operating Humidity		5 to 85% RH (non-condensing)
	Certifications		900 MHz sensors: FCC ID: ZTL-G2SC1 and IC: 9794A-G2SC1. 868 and 433 MHz sensors tested and comply with: EN 55032: 2015/A11:2020; EN 55035:2017/A11:2020; ETSI EN 300 220 V3.2.1 (2018-06); ETSI EN 301 489-3 V2.2.0. (2021-11); and ETSI EN 303 645. All sensors tested and comply with: EN 61010-1 and EN 60950 and meet RoHS 2015/863 and REACH

1. Noise increases as sample rate increases. Noise spikes of 2000 mm/s^2 are not uncommon when measuring at 12800 Hz sample rate. See typical noise tables for more information on noise.
2. Response time defined as five time constants for 99.3% of actual temperature.
3. Temperatures colder than the rating are acceptable if the cable is not moving or vibrating.
4. Operating and storage altitude without DC power supply is -30.48 to 9144 m (-100 to 30000 ft).

 

Enterprise Model | Technical Specifications
Battery1	2x 1.5V AA Alkaline, 1500 mAh, (standard) 2x 1.5V AA Lithium, 3000 mAh, (optional)
Battery Life	10+ years expected
External line-power option2	Input voltage: 5.0-12.0 V Power jack: 2.1 x 5.5 mm barrel, center positive
Operating temperature range3	-18°C to 55°C (0°F to 130°F) – AA Alkaline Batteries -25°C to 60°C (-13°F to 140°F) – AA Lithium L91 Batteries 0°C to 40°C (32°F to 104°F) – US 5V Power Supply 10°C to 40°C (50°F to 104°F) – International 5V Power Supply
Wireless antenna type	1/4-wave, 20 gauge wire whip, 3.5″ (900/868MHz), 7″ (433MHz)
Weight	5.53 oz (157 g) without batteries

1. Hardware cannot withstand negative voltage. Please take care when inserting and removing batteries.
2. Batteries will provide backup power in the case the external power is removed.
3. Operating below 0°C (-32°F) degrees will reduce battery life.