by
The Leading Enterprise Internet of Things Solution
Wireless Accelerometer - Vibration Meters
General Description
The ALTA Wireless Vibration Meter Sensor uses
an accelerometer to measure vibration speed and
frequency and report on 3 axes. The sensor reports
speed (mm/s) and frequency (Hz) on all three axes, and
duty cycle (how much of the report interval vibration
was present).
Features of Monnit ALTA Sensors
•
•
•
•
•
•
Wireless range of 1,200+ feet through 12+ walls *
Frequency-Hopping Spread Spectrum (FHSS)
Improved interference immunity
Improved power management for longer battery life **
(12+ years on AA batteries)
Encrypt-RF® Security (Diffie-Hellman Key Exchange
+ AES-128 CBC for sensor data messages)
Onboard data memory stores up to 512 readings
per sensor:
- 10-minute heartbeats = 3.5 days
- 2-hour heartbeats = 42 days
Over-the-air updates (future proof)
Free iMonnit basic online wireless sensor monitoring
and notification system to configure sensors, view
data and set alerts via SMS text and email
Features
• Three axis measurement
• Reports critical vibration and frequency data
• Runtime indication via duty cycle
•
•
Principle of Operation
The ALTA Vibration Meter measures the vibration
intensity of the system to which it is attached. The
sensor uses an accelerometer to capture g-force on all
axes and then calculates speed and frequency from that
acceleration data. The Vibration Meter reports the duty
cycle, or how long the sensor was measuring vibrations
throughout the heartbeat.
*
Actual range may vary depending on environment.
**
Battery life is determined by sensor reporting
frequency and other variables. Other power options
are also available.
Wireless Range Comparison
Wireless Range Comparison
Monnit ALTA
Example Applications
•
•
•
•
•
Vibration monitoring
Smart machines, smart structures & smart materials
Bridge and building seismic activity monitoring
Assembly line monitoring
Many additional applications
Monnit
Other Wireless Platforms
Wifi
Bluetooth
PAGE 1
2.470
2.470
4.375
3.295
1.111
1.111
ALTA Commercial AA Wireless Accelerometer - Vibration Meter | Technical Specifications
Supply voltage
Current consumption
Operating temperature range
(board circuitry and batteries)
Optimal battery temperature range (AA)
Speed measurement range
Speed measurement resolution
Frequency measurement range
Frequency measurement resolution
Vibration intensity threshold range
Vibration intensity threshold resolution
Accelerometer g-Force Range
Integrated memory
Wireless range
Security
Weight
Certifications
Industry
Canada
2.0–3.8 VDC (3.0–3.8 VDC using power supply) *
0.2 µA (sleep mode), 0.7 µA (RTC sleep), 570 µA (MCU idle), 2.5 mA
(MCU active), 5.5 mA (radio RX mode), 22.6 mA (radio TX mode)
-18°C to 55°C (0°F to 130°F) using alkaline
-40°C to 85°C (-40°F to 185°F) using lithium **
+10°C to +50°C (+50°F to +122°F)
0 to 25.5 mm/s
0.1 mm/s
10 to 200 Hz
1 Hz
0 to 1.701 g
0.063 g
+/- 2 g
Up to 512 sensor messages
1,200+ ft non-line-of-sight
Encrypt-RF® (256-bit key exchange and AES-128 CTR)
3.7 ounces
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
*
Hardware cannot withstand negative voltage. Please take care when connecting a power device.
**
At temperatures above 100°C, it is possible for the board circuitry to lose programmed memory.
Power Options
The standard version of this sensor is powered by two
replaceable 1.5 V AA sized batteries (included with
purchase). This sensor is also available with a line power
option. The line powered version of this sensor has a barrel
power connector allowing it to be powered by a standard
3.0–3.6 V power supply. The line powered version also uses
two standard 1.5 V AA batteries as backup for uninterrupted
operation in the event of line power outage. Power options
must be selected at time of purchase, as the internal
hardware of the sensor must be changed to support the
selected power requirements.
Monnit Wireless Accelerometer
Orientation (Commercial AA)
Gravity
Y
-
X
-
Z
-
PAGE 2
Industrial
Wireless
Sensor
Monnit Wireless Accelerometer
Orientation (Industrial)
2.316 in
(58.84 mm)
Gravity
X
+
3.701 in
(94.0 mm)
Height:
1.378 in
(35.0 mm)
Y
+
Z
+
ALTA Industrial Wireless Accelerometer - Vibration Meter | Technical Specifications
Supply voltage
Current consumption
Operating temperature range (board circuitry and battery)
Included battery
Optional solar feature
Max Temperature Range
Capacity
Solar panel
Charging temperature range
Max temperature range
Included rechargeable battery
Solar efficiency
Speed measurement range
Speed measurement resolution
Frequency measurement range
Frequency measurement resolution
Vibration intensity threshold range
Vibration intensity threshold resolution
Accelerometer g-Force Range
Integrated memory
Wireless range
Security
Weight
Enclosure rating
UL Rating
Certifications
Industry
Canada
2.0–3.8 VDC (3.0–3.8 VDC using power supply) *
0.2 µA (sleep mode), 0.7 µA (RTC sleep), 570 µA (MCU idle), 2.5 mA
(MCU active), 5.5 mA (radio RX mode), 22.6 mA (radio TX mode)
-40°C to +85°C ( -40°F to +185°F ) **
-40° to +85°C ( -40° to +185°F )
1500 mAh
5VDC/30mA (53mm x 30mm)
0° to 45°C (32° to 113°F)
-20° to 60°C (-4° to 140°F)
600 mAh / >2000 charge cycles (80% of initial capacity)
Optimized for high and low-light operation ***
0 to 25.5 mm/s
0.1 mm/s
10 to 200 Hz
1 Hz
0 to 1.701 g
0.063 g
+/- 2 g
Up to 512 sensor messages
1,200+ ft non-line-of-sight
Encrypt-RF™ (256-bit key exchange and AES-128 CTR)
4.7 ounces
NEMA 1, 2, 4, 4x, 12 and 13 rated, sealed and
weather proof
UL Listed to UL508-4x specifications (File E194432)
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
*
Hardware cannot withstand negative voltage. Please take care when connecting a power device.
**
At temperatures above 100°C, it is possible for the board circuitry to lose programmed memory.
***
Light present 25% of day yields 125% of operating power to support 10-minute heartbeats.
PAGE 3
Commercial Grade Sensors
Monnit commercial grade sensors are designed for applications in ordinary environments (normal room temperature,
humidity and atmospheric pressure). Do not use these sensors under the following conditions as these factors can
deteriorate the product characteristics and cause failures and burnout.
•
Corrosive gas or deoxidizing gas: chlorine gas, hydrogen sulfide gas, ammonia gas, sulfuric acid gas, nitric oxides
gas, etc.
•
Volatile or flammable gas
• Dusty conditions
• Low-pressure or high-pressure environments
• Wet or excessively humid locations
• Places with salt water, oils chemical liquids or organic solvents
• Where there are excessively strong vibrations
• Other places where similar hazardous conditions exist
Use these products within the specified temperature range. Higher temperature may cause deterioration of the
characteristics or the material quality.
Industrial Grade Sensors | Type 1, 2, 4, 4X, 12 and 13 NEMA Rated Enclosure
Monnit’s Industrial sensors are enclosed in reliable, weatherproof NEMA-rated enclosures. Our NEMA-rated enclosures
are constructed for both indoor or outdoor use and protect the sensor circuitry against the ingress of solid foreign objects
like dust as well as the damaging effects of water (rain, sleet, snow, splashing water, and hose-directed water).
•
•
•
•
•
Safe from falling dirt
Protects against wind-blown dust
Protects against rain, sleet, snow, splashing water, and hose-directed water
Increased level of corrosion resistance
Will remain undamaged by ice formation on the enclosure
For more information about our products or to place an order, please contact
our sales department at 801-561-5555.
Visit us on the web at
www.monnit.com.
Monnit Corporation
3400 South West Temple
Salt Lake City, UT 84115
801-561-5555
www.monnit.com
Monnit, iMonnit, ALTA, PinchPower, Encrypt-RF and all other trademarks are property of Monnit, Corp.
© 2018 Monnit Corp. All Rights Reserved.
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