Product

Wireless Absolute Pressure Field Unit

The Accutech AP10 wireless absolute pressure field unit provides pressure data in a variety of ranges from 30 to 250PSIA. With its integrated and highly sensitive sensor design, the product may be configured to sample and transmit updates between once per second and once per minute. Transmit rate changes can also be triggered based on events that are defined in terms of measurement limits or rates of movement. This function allows for maximisation of battery life.

 

Accutech field units automatically report field data to a centralised Accutech base radio over distances of up to 3000ft (~1000m). Each field unit is self-contained, featuring an integrated 900MHz or 2.4GHz (license-free band), frequency hopping, spread-spectrum transceiver and antenna, and long-lasting battery that offers 3+ years of maintenance-free service (up to 10 years depending on data rates and battery options). Accutech networks are highly scalable with the possibility of 100 field units per base radio and 256 base radios per installation. Accutech field units are housed within a compact and weather-resistant NEMA4 enclosure with options for a remote sensor and remote antenna on select models. Field units are available in a wide range of certifications and come with a 3-Year warranty.

Wireless Absolute Pressure Field Unit
  • Sensor Type :                        Multi-Input; Location Field Unit
  • Frequency Range:                 2.4GHz license-free bands
  • Power Integrated battery
  • Network Capacity:                 Max. 100 field units per base radio &  Max. 256 base radios per network
  • Inputs:                                    2: 4-20mA inputs  & 2: 0-10V inputs  
  • Accuracy:                              ± 0.25% of full-scale at 20°C (68°F) and  ± 0.5% of sensor URL including     combined effects of linearity, hysteresis, repeatability, and temperature. Addition of seals will reduce     accuracy due to thermal effects of fill fluid.
  • Stability Combined zero and span stability:   Less than ± 0.1% of sensor URL per year at 21°C (70°F)
  • Humidity:                               0 to 95%, non-condensing
  • Operating Ambient:               -40° to +85°C (-40° to +185°F)                                                                
  • Output Resolution :               24-bit Analog to Digital conversion
  • Absolute Pressure Ranges: 30, 250psia (2, 17BAR)
  • RF Characteristics 2.4GHz:

-  2400 to 2483.5MHz ISM license-free band Frequency Hopping Spread Spectrum (FHSS) Radio

-  Data Rates: 50/100kbps (FSK Modulation), 200kbps (GFSK Modulation)

-  Typical Electrical Transmit Power: +10.6dBm

-  Typical Receive Sensitivity (0.1% BER): - 102dBm @ 50kbps, - 99dBm @ 100kbps, - 99dBm @ 200kbps

-  Typical CW Receiver Blocking Rejection: 64dB for CW @ +/- 5MHz, 74dB for CW @ +/- 30MHz

 

  •  Self-Diagnostics

- Low battery notification – indicates the need to replace the battery (approximately one month advance notification)

- Contains software and hardware that continuously monitors operation. Any sensor or device parameter that is out of spec is identified and reported.

  •   Power Self-contained power

- Standard Accutech field units include D-Cell (2.4GHz) lithium battery that offers battery life up to ten years of service, depending on data rates and battery options.

Wireless Absolute Pressure Field Unit