ALTA wireless pressure meters measure pressure and transmit the pressure measurement to iMonnit. By connecting the Monnit wireless pressure meter to a pressurized gas, liquid or vapor supply line, it can measure the pressure within the line and send data to the iMonnit Online Sensor Monitoring and Notification System. The data is stored in the online system and can be reviewed and exported as a data sheet or graph. User customization allows you to set notifications and alerts from the system so you can know immediately if pressure is above or below an optimal range.
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.
* Actual range may vary depending on environment.
** Battery life is determined by sensor reporting frequency and other variables.
Pressure Transducer Specifications
|Operating Temperature||0 to 175°F (-18 to 79°C)|
|Thermal Effect on Reading||±0.02% FS/°F. (includes zero and span).|
|Media||Gas, Liquid or Vapor|
|Response Time||50 msec.|
|Stability||1.0% FS/year (Typ.).|
|Wire Length||1 Meter shielded cable (between gauge and wireless unit)|
|Accuracy||0.25% FS; 0.20% RSS;
Absolute Ranges: 0.5% FS; 0.35% RSS.
(Includes linearity, hysteresis, and repeatability).
|Maximum Rated Input Voltage||5.5 V|
|Voltage Range||0 - 5.2 V|
|Voltage Resolution||~3 mV|
|Voltage Measurement Accuracy||± 3% FS|
|Pressure Measurement Accuracy||± 3% FS|
|User Calibrated Accuracy||+/- 1% FS|
|Process Connection||¼" NPT-Male Standard|
|Pressure Transducer(s)||50 or 300 PSIG (Others available upon request)|
|Security||Encrypt-RF® (256-bit key exchange and AES-128 CTR)|
|Max Output Voltage||5.5 V|
|User Calibrated Pressure Accuracy||± (0.5% of reading + 0.5% FS)|
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)|