Device Overview
Introducing NCD’s Industrial Grade Bidirectional Differential Pressure Sensor, boasting up to a 28 Mile range using a 900MHz wireless mesh networking architecture or 1 Mile using 2.4GHz wireless mesh networking architecture. It processes temperature and pressure data and transmits this information wirelessly. This whole process is repeated at user defined intervals with low power sleep mode activated in between.
Powered by just 6 AA batteries this sensor can last up to 10 years, especially if you utilize the sleep feature efficiently. It can be integrated into any end-user system utilizing the open NCD Node-RED libraries. No vendor lock, you own your data and you can configure the device and process your data at the edge or on a cloud server.
The range, price, accuracy, battery life and security features of Industrial Wireless Differential Pressure Sensor makes it an affordable choice which exceeds the requirements for most of the Industrial as well as consumer market applications.
Feature
- Industrial Grade Bidirectional Differential Pressure Sensor with Temperature output
- A selection of probes with different pressure range and sensitivity:
- AMS5812-0150-D-B Amplified Pressure Sensor -1034 to +1034 mbar -15 to +15 PSI
- AMS5812-0050-D-B Amplified Pressure Sensor -344.7 to +344.7 mbar -5 to +5 PSI
- AMS5812-0001-D-B Amplified Ultra Low Pressure Sensor -10.34 to +10.34 mbar -0.150 to +0.150 PSI
- AMS5812-0003-D-B Amplified Low Pressure Sensor -20.68 to +20.68 mbar -0.30 to +0.30 PSII
- Operating Temperature Range -40 to +85 °C
- Temperature resolution 0.01°C
- 1-Mile Range with 2.4GHz or 2 Mile Range with 900MHz On-Board Antenna
- Superior LOS Range of up to 28 miles with 900MHz High-Gain Antennas
- Fully configurable via Node-RED
- Wireless Mesh Networking using DigiMesh®
- Up to 256 Sensor Nodes per Network
- Open Communication Protocol for custom interfacing applications
- Multiple Modes of Operation (Configuration and Run mode)
- Wireless Sensor and Radio Configuration feature
- Default Factory setting Restore option
- Power Efficient Built-in Sleep mode
- User Configurable Sleep duration
- Reliable Transmission incorporating packet Retries
- Secure Transmission using AES-128 Encryption
- Real time battery status
Status LED
The Status LED is used to indicate errors or other sensor diagnostics.
LED blinks once – Message was sent successfully and no error in last sensor read as well in data transmission.
LED blinks twice and then one more time – Message was sent successfully but there was an error in last sensor read.
LED blinks thrice – MCU is having issue communicating with the radio module.
Sensor Specifications
| Specifications | Minimum | Nominal | Maximum | Notes |
|---|---|---|---|---|
| Width | 3.54" | |||
| Length | 4.52" | |||
| Height | 2.16" | |||
| Enclosure Rating | IP65, NEMA 1,2,4,4X,12,13, UL-508 | |||
| Mounting | 1/4 NPT 1/4-28 UNF Magnet Mount | |||
| Temperature Rating | -40° C | 23° C | 85° C | Component Rating |
| Tested Temperature | 0° C | 23° C | 40° C | As Tested by NCD Staff |
| Probe Temperature | -40° C | 23° C | 105° C | As Tested by NCD Staff |
| Temperature range | -25°C [-13°F] | 85°C [185°F] | ||
| Temperature resolution | 0.01°C | |||
| Temperature accuracy | 0.3°C | |||
| Operating Pressure Range | -0.15 PSI | 0.15 PSI | ||
| Pressure Resolution | 0.01 PSI |
Printed Circuit Board Specifications
| Parameter | Minimum | Nominal | Maximum | Notes |
|---|---|---|---|---|
| Trace Width | 0.007 inch | 0.012 inch | 0.25 inch | Trace Width depends on the Trace Type |
| Layer Count | 2L - Rigid | Top and Bottom Layer | ||
| Material Type | FR-4 TG170 | FR-4 TG170 | FR-4 TG180 | |
| Surface Finish | ENIG 2u" | |||
| IPC Standard | IPC CLASS 2 | |||
| Finished Copper Foil | 1.0/1.0 OZ | |||
| Finished Thickness | 0.062 inc | |||
| Fine line <4.0/4.0mil | No | |||
| Blind & Burried Vias | No | |||
| Non-Conductive Resin | No | |||
| Conductive Resin | No |
Mechanical Drawing
RF Module Specifications
| Parameter | 868MHz | 900MHz | 2.4GHz |
|---|---|---|---|
| Frequency Band | 863 MHz to 870 MHz | 902 to 928 MHz | ISM 2.4 GHz |
| Transmitter Power | Up to 13 dBm ERP | Up to 24 dBm | Up to 8 dBm |
| Receiver Sensitivity | -106 dBm at 80 Kbps | -101 dBm at 200 Kbps | -103 dBm at 250 Kbps |
| Range (dense urban) | ~1000ft | ~1000ft | ~300ft |
| Range (line of sight) | ~2 miles | ~2 miles | ~1 mile |
| Data Rate | 80 Kbps | 200 Kbps | 250 Kbps |
| Networking Protocol | Digi XBee® DigiMesh® | Digi XBee® DigiMesh® | Digi XBee® DigiMesh® |
| Encryption | 128-bit AES | 128-bit AES | 128-bit |
| Reliable Packet Delivery | Retries/acknowledgements | Retries/acknowledgements | Retries/acknowledgements |
| IDs | PAN ID and addresses, cluster IDs and endpoints (optional) | PAN ID and addresses, cluster IDs and endpoints (optional) | PAN ID and addresses, cluster IDs and endpoints (optional) |
| Certification | CE/RED, ROHS Compliant | FCC (America), IC (Canada), C-Tick (Australia), Anatel (Brazil), IDA (Singapore) | FCC (America), IC (Canada), RCM (Australia), Anatel (Brazil), Teleck MIC (Japan), KCC (South Korea) |
Power Requirements and Expected Battery Life
Power Requirements
This Sensor is battery powered
Powered by AA batteries (NCD recommends Energizer L91 batteries).
While changing the batteries:
- Turn off the sensor
- Only use new L91 batteries
- Checkout the polarity marking on the battery holder and batteries
- Replace all six batteries with new L91 batteries. Do not mix old and new batteries
- Batteries should not be replaced in fire-risky areas
- Do NOT install rechargeable batteries
Expected Battery Life
| Specifications | Minimum | Nominal | Maximum | Notes |
|---|---|---|---|---|
| Batteries | 2 | 6 | 6 | May be Powered by 2 or 4 AA Batteries |
| Battery Life 1 TPD | 10 Years | TPD Transmissions per Day | ||
| Battery Life 12 TPD | 8 Years | TPD Transmissions per Day | ||
| Battery Life 24 TPD | 5 Year | TPD Transmissions per Day | ||
| Battery Life 96 TPD | 3 Year | TPD Transmissions per Day |
Most NCD IoT Sensors are rated for 300,000 to 500,000 transmissions until the batteries become so weak they are unreliable. You could spread these transmissions out over a 10 year period and send 50,000 transmissions per year. This would allow up to 136 transmissions per day, or about 5 transmissions per hour (for a 500K sensor, or 3 per hour for 300K sensor). If you only need the batteries to last 3 years, you could send 166,666 transmissions per year, or about 456 transmissions per day (about 19 transmissions per hour for a 500K sensor). As you can see, battery life is really up to you. By altering advanced settings in the NCD IoT sensor, you have control over longevity. Please note the 500,000 transmission rating is for premium alkaline batteries. NCD ships all sensors with premium Lithium batteries, which include a ultra-wide temperature range that typically lasts in excess of 600,000 transmissions for some sensor types. These batteries weigh less than half of alkalines, and they work in the freezer! A word of caution though, putting a sensor in configuration mode will drain the batteries very quickly. It’s important to configure your sensors and exit configuration mode as soon as possible or use a external power supply during configuration (if supported by the sensor). The table above indicates how many Transmissions Per Day (TPD) your can expect from different sensors over a lifespan of up to 10 years.
Head to the NCD store if you want to purchase the
Industrial Wireless Bidirectional Differential Pressure Sensor.
If you already have the device and would like more information into its basic and advanced operations check out the Quick Start Guide and User Manual.