by
The Leading Enterprise Internet of Things Solution
Wireless 5V Pressure Meters
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.
300 PSIG
PRESSURE
METER
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 (Diffie-Hellman Key Exchange
+ AES-128 CBC for sensor data messages).
Onboard data memory / storage
(up to 512 readings per sensor).
- 10 min 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.
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 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.
•
•
* 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 Interfacing
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•
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Compressors/Compressed Air Lines
Water Supply Lines
Pumping Systems
Irrigations System Pressure
Industrial Process Monitoring
Trash Compaction Equipment
Monnit
Other Wireless Platforms
Wifi
Bluetooth
PAGE 1
2.470
2.470
4.375
3.295
1.111
1.111
ALTA Commercial AA Wireless Pressure Meter - Technical Specifications
Supply Voltage
Current Consumption
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 )
Up to 512 sensor messages
1,000+ ft. non-line-of-sight
Encrypt-RF™ (256-bit key exchange and AES-128 CTR)
10.3 Ounces
Industry
Canada
Operating Temperature Range (Board Circuitry and Batteries)
Optimal Battery Temperature Range (AA)
Integrated Memory
Wireless Range
Security
Weight
Certifications
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 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.
PAGE 2
Industrial
Wireless
Sensor
2.316 in
(58.84 mm)
3.701 in
(94.0 mm)
Height:
1.378 in
(35.0 mm)
ALTA Industrial Wireless Pressure Meter - Technical Specifications
Supply Voltage
Current Consumption
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 )
1800 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)
Up to 512 sensor messages
1,000+ ft. non-line-of-sight
Encrypt-RF™ (256-bit key exchange and AES-128 CTR)
13.3 Ounces
NEMA 1, 2, 4, 4x, 12 and 13 rated, sealed and
weather proof
UL Listed to UL508-4x specifications (File E194432)
Industry
Canada
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:
Integrated Memory
Wireless Range
Security
Weight
Enclosure Rating
UL Rating
Certifications
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.
PAGE 3
Pressure Transducer Specifications
Operating Temperature
Thermal Effect on Reading
Media
Response Time
Stability
Wire Length
Accuracy
Process Connection
Pressure Transducer(s)
0 to 175°F (-18 to 79°C).
±0.02% FS/°F. (includes zero and span).
Gas, Liquid or Vapor
300 msec.
1.0% FS/year (Typ.).
1 Meter
1.0% FS; 0.5% RSS;
(Includes linearity, hysteresis, and repeatability)
¼" NPT-Male Standard
50 or 300 PSIG (Others available upon request)
5.5 V
5.0 V
0 - 15 V
0 - 5.2 V ***
~0.5 mV
± (2% of reading + 1.5 mV)
13 kOhm
± (2% of reading + 1.05% FS)
± (0.5% of reading + 0.5% FS) ****
5V Transducer Interface Board Specifications
Max Voltage Output
Typical Voltage Output
Max Voltage Input
Voltage Measurement Range
Voltage Measurement Resolution
Voltage Measurement Accuracy
Input Impedance
Combined Specifications
Pressure Measurement Accuracy
User Calibrated Pressure Accuracy
***
The sensor is capable of measuring above 5 volts but may not meet the specified accuracy above this value.
****
For best results first 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,
hydrogen sulfide gas, ammonia gas, sulfuric acid gas, nitric oxides gas, etc.). Volatile or flammable gas. Dusty conditions.
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 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).
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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, Encrypt-RF and all other trademarks are property of Monnit, Corp.
© 2018 Monnit Corp. All Rights Reserved.
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