The Leading Enterprise Internet of Things Solution
Wireless 5V Pressure Meters
300 PSIG
General Description
The ALTA wireless pressure sensor measures pressure
from a 5 volt pressure transducer and transmits the
pressure measurement to iMonnit. This solution
combines a standard pressure transducer interfaced to
a Monnit ALTA wireless radio.
• Measure pressure with 50 or 300 PSIG
transducers (others available upon request)
• Measure non-caustic liquid or vapor pressures
• Pressure transducer is NEMA 4X (IP66), CE rated
Principle of Operation
By connecting the ALTA wireless pressure sensor 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 Notication
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 notications and
alerts from the system so you can know immediately if
pressure is above or below an optimal range.
Features of Monnit ALTA Sensors
• Wireless range of 1,000+ feet through 12-14 walls *
• Frequency Hopping Spread Spectrum (FHSS)
• Improved interference immunity
• Improved power management for longer battery life **
(10+ years on AA batteries)
• Encrypt-RF™ Security (Die-Hellman Key Exchange
+ AES-128 CBC for sensor data messages)
• Onboard data memory / storage
(up to 512 readings per sensor)
* 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
Example Interfacing
• Compressors/Compressed Air Lines
• Water Supply Lines
• Pumping Systems
• Irrigations System Pressure
• Industrial Process Monitoring
• Trash Compaction Equipment
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2.470
2.470
4.375
3.295
1. 111
1. 111
ALTA Commercial AA Wireless Pressure Meter - Technical Specications
Supply Voltage2.0 - 3.8 VDC (3.0 - 3.8 VDC Using Power Supply) *
Current Consumption0.2 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)
Operating Temperature Range (Board Circuitry and Batteries)-18°C to 55°C (0°F to 130°F) using alkaline
-40°C to 85°C (-40°F to 185°F) using lithium **
Optimal Battery Temperature Range (AA)+10°C to +50°C (+50°F to +122°F)
Integrated MemoryUp to 512 sensor messages
Wireless Range1,000+ ft. non-line-of-sight
SecurityEncrypt-RF™ (256-bit key exchange and AES-128 CTR)
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 un-interupted 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.
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Industrial
Wireless
Sensor
2.316 in
(58.84 mm)
Height:
3.701 in
(94.0 mm)
1.378 in
(35.0 mm)
ALTA Industrial Wireless Pressure Meter - Technical Specications
Supply Voltage2.0 - 3.8 VDC (3.0 - 3.8 VDC Using Power Supply) *
Current Consumption0.2 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)
Operating Temperature Range (Board Circuitry and Battery)-40°C to +85°C (-40°F to +185°F) **
Included BatteryMax Temperature Range:-40°C to +85°C (-40°F to +185°F)
Capacity:1800 mAh
Optional Solar FeatureSolar Panel:5VDC / 30mA (53mm x 30mm)
Charging Temperature Range:0°C to 45°C (32°F to 113°F)
Max Temperature Range:-20°C to 60°C (-4°F to 140°F)
Included Rechargeable Battery:600 mAh / >2000 Charge Cycles (80% of initial capacity)
Integrated MemoryUp to 512 sensor messages
Wireless Range1,000+ ft. non-line-of-sight
SecurityEncrypt-RF™ (256-bit key exchange and AES-128 CTR)
Weight13.3 Ounces
Enclosure RatingNEMA 1, 2, 4, 4x, 12 and 13 rated, sealed and
weather proof
UL RatingUL Listed to UL508-4x specications (File E194432)
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.
**
Industry
Canada
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.
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Pressure Transducer Specications
Operating Temperature 0°F to 175°F (-18°C to 79°C)
Thermal Eect on Reading ±0.02% FS/°F. (includes zero and span)
Media Gas, Liquid or Vapor
Response Time 300 msec.
Stability1.0% FS/year (Typ.)
Wire Length1 Meter
Accuracy 1.0% FS; 0.5% RSS;
(Includes linearity, hysteresis, and repeatability)
Process Connection¼" NPT-Male Standard
Pressure Transducer(s)50 or 300 PSIG (Others available upon request)
5V Transducer Interface Board Specications
Max Voltage Output 5.5 V
Typical Voltage Output 5.0 V
Max Voltage Input 0 - 15 V
Voltage Measurement Range 0 - 5.2 V ***
Voltage Measurement Resolution ~0.5 mV
Voltage Measurement Accuracy ± (2% of reading + 1.5 mV)
Input Impedance13 kOhm
Combined Specications
Pressure Measurement Accuracy ± (2% of reading + 1.05% FS)
User Calibrated Pressure Accuracy ± (0.5% of reading + 0.5% FS) ****
*** The sensor is capable of measuring above 5 volts but may not meet the specied accuracy above this value.
**** For best results rst zero the sensor then calibrate at greater than 20% maximum pressure of the transducer.
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 burn-out. (Corrosive gas or deoxidizing gas - chlorine gas,
Under low or high pressure. 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 product within the specied 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 eects 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