Monnit 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.
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 (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)|
|Battery Type||2 Replaceable AA 1.5 V Batteries|
|Dimension||4.375 in x 2.470 in x 1.12 in|
|Sensing Element||2.0 - 3.6 V (2 x AA 1.5V Batteries or Optional Power Supply)|
|Device Range||250 - 300 ft. non-line-of-sight device range*|
|Battery Life||At 1 hour heartbeat setting, included AA batteries will typically last 3-4 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)|
868 MHz Specifications
|Operating Frequency||868 MHz Operating Frequency|
|Certifications||CE Certified and Complies with CISPR 22:2008-09 / EN 55022:2010 - Class B and ETSI EN 300 220-2 V2.4.1 (2012-05)|