R360 MHM

Non-Tethered Vibration V4 Sensor (Type 114)

Updated on

Marketing

Feature List

  • Scheduled & Interrupt Driven Monitoring
  • RPM Measurement for Variable Frequency Drives
  • Always listening motion detection vibration sensor
  • Frequency Range from 6Hz to 25.6KHz
  • Full scale range of ± 16g or ± 64g
  • Hybrid Capacitor and D Cell size battery for superior battery life
  • Industrial Grade 3 axis vibration and temperature sensor
  • FFT analysis
  • Multiple readings per day
  • Magnetic or ¼”-28 UNF Thread mounting
  • Temperature compensated readings
  • Noise removal using low and high pass filters
  • Up to two mile communication range

Sensor Environmental Regulatory Qualifications

  • Operating Temperature - Between -40 C to 70 C (-40 F to 158 F)
  • Enclosure rating  IP67 rated for dust and moisture
  • Flammability rating  UL94 HB
  • RoHS Compliance - FCC (America), IC (Canada), C-Tick (Australia), Anatel (Brazil), IDA (Singapore)

Sensor Data

  • Triaxial accelerometer
  • 4096 samples per axis
  • Probe mounting: 1/4”-28 UNF thread or magnetic mounting
  • Power: 3.6v size D Lithium Battery with super capacitor

Specifications:

  • Wireless Frequency 900MHz or 868MHz
  • 128bit AES encryption
  • Sensor Height: 85mm
  • Sensor Diameter: 48mm
  • Sensor Weight: 225 g

Applications 

  • Predictive Maintenance for rotating equipment like motors, pumps, compressors and turbines
  • Structural Health Monitoring  such as changes in vibration due to metal fatigue, loose joints, foundation shifts.
  • Quality control in manufacturing using vibration to determine tool wear or imbalance
  • Air compressor motor monitoring
  • Industrial pump monitoring
  • Fan and blower performance
  • Conveyer belt monitoring

Software

Dashboard

  • Easy to understand temperature, acceleration, velocity, and RPM charts with adjustable resolution for graphing.
  • Peak overall velocity graphs for analysis
  • Isolate X, Y, or Z axis for analysis
  • Acceleration, Velocity, Displacement, FFT, and RPM graphs
  • Easy to recognize notification features designed to reduce alert fatigue
Customization
  • Time domain waveform available
  • Map your equipment with your terminology
  • Spectral Waveform (FFT)
  • Notification groups and escalation groups via SMS and Email
Install Team

Sensor installation is a critical step to ensure the best results sensor mounting guidelines should be followed. 

  • While at the asset the transmitter will be mounted on, before mounting it, reset the sensor.  This will allow it to "learn" the mesh network, it's place in the network and the best path(s) to a gateway or repeater.  (Sensor Reset Instructions)
  • There should be a 5” (about the width of a hand) above the sensor for the radio signal. The sensor should have as much access to open air as possible. Sensor placement should be as close to the equipment bearing locations as possible, without impeding the vibration signal being collected.
  • A clean, smooth, and flat mounting surface is key to good vibration collection
  • Sensors should be securely placed to avoid back and forth “rocking motion”. This could appear as a mechanical looseness condition to the analyst, resulting in a misdiagnosis of a machine health condition.
  • The hole on the side of the base of the sensor should be used to align the Y axis. X axis runs perpendicular to the drilled hole, and Z axis runs up through the top

 

Sensor internal details
Support Team

Expanded Sensor Details

Feature list from above:

  • Scheduled & Interrupt Driven Monitoring
  • RPM Measurement for Variable Frequency Drives
  • Always listening motion detection vibration sensor
  • Frequency Range from 6Hz to 25.6KHz
  • Full scale range of ± 16g or ± 64g
  • Hybrid Capacitor and D Cell size battery for superior battery life
  • Industrial Grade 3 axis vibration and temperature sensor
  • FFT analysis
  • Multiple readings per day
  • Magnetic or ¼”-28 UNF Thread mounting
  • Temperature compensated readings
  • Noise removal using low and high pass filters
  • Up to two mile communication range

Additional details

  • Over The Air configuration and firmware update capable
  • Temperature is an ambient reading taken from approx. one inch off the surface of where the sensor is mounted. This is used for calibration of the sensor readings and should not be used for an accurate reading of the assets temperature.
  • This is not a field serviceable sensor and should not be opened in the field. The batteries are not replaceable in the field for this model.
  • RPM values are determined by using the accelerometer data.
  • Smart mode avoids unnecessary FFT's by ignoring a scheduled FFT if no vibration from the machine is detected.
  • The sensor has a shake awake feature for capturing abnormal vibrations.
  • The 114 is capable of wireless firmware updates. This will reset the PANID to 7FFF.
  • Frequency Range between 6KHz and 25.6KHz
  • Sampling Rate from 100Hz to 25.6KHz

Current Firmare - v6

Sensor Specific Configuration

  • Probe 1 Sampling Duration: Set Acceleration Wake/Interrupt Threshold. Set a breakpoint for sensor to wake up and broadcast readings. This is not interrupt based configuration ideal for devices with minimal workload/uptime. This will be an integer value that increments the interrupt threshold by 50mg. A value of 1 wakes the sensor if acceleration is above 50mg, 2 means 100mg, etc.
  • Valid Input Range: 0 to 40. A value of 0 will disable this feature. This Only applies to sensor with firmware version 24 and above.
  • LED Alert Mode: Choose whether the LED indicator should be based on Acceleration or Velocity.
  • LED Accelerometer Threshold: Set the minimum acceleration value to make LED indicator red. This will be an integer value that increments the threshold by 50mg. A value of 1 means turn the LED red if acceleration is above 50mg, 2 means 100mg, etc.
  • LED Velocity Threshold: Set the minimum velocity value to make LED indicator red. This will be an integer value that increments the threshold by 2mm/second. A value of 1 means turn the LED red if velocity is above 2mm/sec, 2 means 4mm/second, etc.
  • Set On Request Timeout in seconds: This is how long the device will remain active and wait for a RAW data request command, before going inactive again.
  • Set RTC: Set the value for the Real Time Clock.
  • Full Scale Range: How large of a range the device can measure acceleration in. For example +/- 8g would mean that it would measure at most up to 8g and down to -8g.
  • Set Dead Band in mg: This value determines the minimum acceleration in milli-g would have to be for it to be registered as a measurement. Values below the threshold would be perceived as 0.
  • Payload Length: This is the size of the data payload the sensor sends when it sends a message.
  • Output Data Rate (ODR): The data rate of the output signal. This would determine how many samples the output data has, which is directly related to the highest frequency components that can be measured. In accordance with the Nyquist equation: f_max = ODR/2.56 Hz
  • Set Sampling Duration: This parameter determines the amount of time which the samples are taken.
  • Set Low Pass Filter Probe 1: This setting will set the L:PF freq to ODR divided by Selected Value. Example: ODR = 800 and Filter Coefficient = 64 HPF freq = 800/64 = 12.5Hz
  • Set High Pass Filter Probe 1: This setting will set the HPF freq to ODR divided by Selected Value. Example: ODR = 800 and Filter Coefficient = 64 HPF freq = 800/64 = 12.5Hz
  • Mode: Select the mode of operation: Processed  only processed data is sent, as in the example in this document. Raw full time domain data is sent (very large not recommended for prolonged periods). Processed + Raw on demand  same as the first mode, but with the option to generate a Raw packet on demand.  Smart in this mode the sensor automatically samples and sends a data packet if the vibration crosses a defined threshold level
  • Sampling Interval: How often will the sensor transmit measurement data wirelessly.
  • Clear Probe Uptimers: When the measured vibration is above a threshold value we can deduce that the machine is on and start a counter to measure the uptime. This setting will zero out the uptime value.
  • Set Auto Raw Interval: This interval is multiplied by the sample interval to determine how often the sensor should automatically transmit raw data. If the value is set to 1 and the sample interval is 30 minutes, Raw data will be sent every 30 minutes. If the value is set to 5, Raw data will be sent every 150 minutes. You can obtain the value from the Modem MAC Message.
  • Set Auto Raw Destination Address: This is the address where the Auto Raw data will be sent, we recommend setting this to your gateway address. For example: 41:D5:EC:37
  • Set Smart Mode Threshold: If RMS acceleration is above this in any axis, it will send data. This will be an integer value that increments the interrupt threshold by 50 mg. A value of 1 means to wake the sensor if acceleration is above 50 mg, 2 means 100 mg, etc.
  • Set Smart Mode Skip Interval: Sensor will skip sending data this many times if vibration is below the smart threshold.
  • Set FLY Interval: Set the interval at which the sensor will send FLY packets. FLY packets are what allows Node-Red to reconfigure the sensor so this determines how often the sensor should check in for updated configurations.
  • Enable RPM Calculate Status:  When a measurement sample is taken you can choose to not calculate the RPM, this will shorten the measurement time and save on battery.
  • Set Max Raw Sample: Defines the maximum number of samples the sensor captures for time-domain data.
    Options:
    1024 Samples.
    2048 Samples.
    4096 Samples.
    6400 Samples.
    8100 Samples.
Setting Default Value Options Desired State Config
Wait for Network Formation Yes Yes
No
No
Destination Address 00007777 00000000-FFFFFFFF No
Network ID 7FFF 0-0x7FFF Yes
Node ID and Delay Node ID: 0 | Delay: 300 Node ID: 0-255 | Delay 0-1800 No
Power 24 dBm

+7   dBM     (5mW)

+15 dBM   (32mW)

+18 dBM   (63mW)

+21 dBM (125mW)

+24 dBM (250mW)

No
Retries 10 0-10 No
Mode 3 Processed - 0
Raw - 1
Processed + Raw On Demand - 2
Smart - 3
Yes
LED Alert Mode Acceleration Acceleration
Velocity
No
LED Accelerometer Threshold 500 mg  0-10 (multiply by 50 for mg) No
LED Velocity Threshold 5 mm/sec 0-10 No
Set On Request Timeout 1 Second 1-10 No
Set Filtering Enabled Enabled
Disabled
No
Probe 1 Output Data Rate 12800 Hz

100Hz

200Hz

400Hz

800Hz

1600Hz

3200Hz

6400Hz

12800Hz

25600Hz

Yes
Probe 1 Sampling Duration 1 Second 1 through 100
1 - 50 milliseconds
2 - 100 milliseconds, et al
Yes
Probe 1 Set Low Pass Filter 4 (max BW is 3200 Hz)

8

16

32

64

128

256

512

1024

2048 

No
Probe 1 Set High Pass Filter 2048 (min BW is 6.25)

8

16

32

64

128

256

512

1024

2048

No
Sampling Interval 30 minutes

5 Minutes

10 Minutes

15 Minutes

20 Minutes

30 Minutes

60 Minutes

120 Minutes

180 Minutes

No
Set Auto Raw Interval 0 0 = Disabled
1-255
No
Set Auto Raw Destination Address 0000FFFF 00000000-FFFFFFFF No
Probe 1 Set Smart Mode Threshold 500 mg 1 - 65535 No
Set Smart Mode Skip Interval 3 0-255 No
Probe 1 Set Acceleration Wake / Interrupt Threshold 10 mg 0-40 No
Full Scale Range +/- 8 g

+/- 2 g

+/- 4 g

+/- 8 g

+/- 16 g

+/- 32 g

+/- 64 g

No
Set Dead Band in mg 20 mg 0mg - 255 mg No
Set FLY interval  30 Minutes

1 Hour

2 Hours

4 Hours

8 Hours

12 Hours

18 Hours

24 Hours

No
RPM Calculate Status Enabled Enabled
Disabled
No
Set RTC Disabled Enabled
Disabled
No
Set Max Raw Sample 4096 samples

1024 Samples

2048 Samples

4096 Samples

6400 Samples

8100 Samples

Yes
Clear Probe Uptimers Disabled Enabled
Disabled
No
Payload Length 180 Bytes

55 Bytes

100 Bytes

150 Bytes

180 Bytes

No

Reset switch

To activate the reset switch swipe a magnet up the right side of the sensor. There is a hole on the base of the sensor that is used for XYZ axis alignment. The switches are on the left and right side of the hole if you can not see the battery connector through the lid. Ideally, look through the lid for the connector highlighted below and swipe over the Reset switch. There is a faint red LED when you swipe over the Reset switch but it is very dim. You will see a single flash 5 to 10 seconds after the swype. If you see lights immediately you have swiped over the Configuration switch and should swipe once on the other side and wait momentarily for the lights. If you swipe and see no lights from either side after 5 to 10 seconds, the sensor battery is too low and support should be contacted for assistance.

Swiping over the Configuration button for 6 to 10 seconds will put the sensor into configuration mode and it will not collect sensor data until the reset switch is activated.
Swiping over the Reset button for 30 seconds will cause the sensor to be put into factory reset mode and will reset the PANID to 7FFF.

Mag Switch
Mag switch lights
Build Team
  • When packing the sensors for shipment ensure the magnets are not touching devices, no magnet to orange lid, no magnet to magnet. Lid to lid is fine.
  • Verify orientation of Y axis indication hole on base is in alignment with the sensor board viewable through the orange lid

Additional Resources

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