The ALTA Wireless Advanced Vibration Meter uses an accelerometer to measure vibration and frequency on 3 axes. The sensor reports vibration (acceleration, velocity, displacement, or acceleration peak), frequency (Hz/RPM), and crest factor on all three axes. It also reports duty cycle (how much of the report interval that vibration was present), and temperature.
|Frequency Measurement Range (Based on Configured Sample Rate)|
|Sample Rate||Min Freq (Hz)||Max Freq (Hz)||Min Freq (Hz)||Max Freq (Hz)||Min Freq (Hz)||Max Freq (Hz)|
ALTA sensors offer 3 to 4 times the range of standard sensor platforms, extending non-line-of-sight reach to an exceptional 1,200+ feet through walls (12-14 walls typical). Using Frequency-hopping Spread Spectrum (FHSS) also allows ALTA sensors to have better interference immunity from other wireless devices.
Superior power management provides ALTA sensors with almost twice the battery life of Monnit’s standard wireless sensors.
Integrated on-board data storage allows ALTA sensors to store data messages if communication to a wireless gateway is disrupted (power outage, Internet outage, or out of range). Messages that can’t be delivered will be time-stamped and stored in memory (up to the last 512 messages) until communication with the gateway is restored, at which point the messages will all be transmitted.
Over-the-air updates allow ALTA products to be updated remotely if new fixes or features become available.
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 - 3.8 V power supply (Included with Line Power option upgrade). 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.
|Supply Voltage||2.0–3.8 VDC (3.0–3.8 VDC using power supply) *|
|Current Consumption||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)|
|Vibration Intensity Threshold Range||Acc RMS / Acc Peak: 0 to 65.535 mm/s^2, Velocity RMS: 0 to 655 35 mm/s, Displacement: 0 to 655.35 mm **|
|Vibration Intensity Threshold Resolution||0.001 mm/s^2, 0.01 mm/s, .01 mm|
|Frequency Measurement Range||See Frequency Measurement Range table in product description|
|Frequency Measurement Resolution||0.1 Hz|
|Sensitivity Range||Software Configurable (0 to 2.56 g / .01 g)|
|Thermistor Operating Range||-40°C to +125°C ( -40°F to +257°F ) / 0.1 C (0.1 F)|
|Rated Input Frequency||Software Configurable (See Frequency Measurement Range table in product information for available Sample Rates)|
|Window||Software Configurable (Rectangular, Hanning, Flat Top)***|
|Security||Encrypt-RF® (256-bit key exchange and AES-128 CTR)|
ALTA AA Specifications
|Battery Type||2 Replaceable AA 1.5 V Batteries|
|Dimension||4.375 in x 2.470 in x 1.12 in|
|Supply Voltage||2.0 - 3.8 V (2 x AA 1.5V Batteries or Optional Power Supply)|
|Battery Life||At 1 hour heartbeat setting, included AA batteries will typically last 6-8 Years. **|
|Max Operating Temperature Using AA Alkaline||-18°C to 55°C (0°F to 130°F)|
|Max Operating Temperature Using AA Lithium||-40°C to 60°C (-40°F to 140°F)|
|Optimal Battery Operating Temperature||+10°C to +50°C (+50°F to +122°F)|
ALTA 900 MHz Specifications
|Operating Frequency||900 MHz Operating Frequency|
|Certifications||Complies with Part 15 of the FCC Rules. (FCC ID: ZTL-G2SC1)
Complies with Industry Canada standards. (IC: 9794A-G2SC1)
|Device Range||Device Range Up to 1,200 ft. non-line-of-sight, wireless device range*|
|Security||Encrypt-RF® (Diffie-Hellman Key Exchange + AES-128 CBC)|