D12-IR N2O fixed detector (nitrous oxide)

N2O fixed gas detector assets

The D12-IR fixed N2O detector is a linear gas transmitter 4-20 mA output with measured values recorder. Many options are available to complete this device depending on the needs and applications: a 3-relay module (potentially free), digital communication board (HART or MODBUS protocol) for universal commands, or measurement logs download.

The infrared gas detector D12-IR is also available for the detection of carbon dioxide (CO2), methane (CH4), propane (C3H8), as well as many hydrocarbons. It is immune to poisons affecting catalytic sensors, insensitive to gas saturation, and can operate in an inert atmosphere. The CO2 and N2O  versions are available in two measurement ranges to best fit the needs of the applications.

The technical specifications of the N2O D12-IR detector

• Gases measured: Nitrous oxide (N2O), carbon dioxide (CO2), methane (CH4), propane (C3H8) and many hydrocarbons.
• Sensor type: Non-dispersive infrared (NDIR)
• Response time: T50 = 10 seconds, T90 = 20 seconds
• Accuracy: ± 2% of the measurement (for N2O)
• Repeatability: ± 1 %
• Zero drift: < 1 % of full scale per month, not cumulative
• Scale drift: Depends on the environment, typically less than 1% per month
• Power supply: 12–30 VDC / 250 mA maximum
• Output: 4-20 mA, 600 ohms maximum at 24 VDC
• Display: 96x32 graphic LCD with backlight
• Setting: Non-intrusive (4 keys with magnetic switches)
• Available options:
  - MODBUS™ communication (1200-9600 – RS232 or RS485)
  - HART™ communication (1200 baud modern interface)
  - 3 NO or NC potential free relays card 5A/230 Vac ou 30 Vdc
• Operating conditions:
  - Temperature : -20 to +60°C
  - Humidity 0 to 99% RH (non- condensing)
• Connection: 2 x 3/4 NTP (delivered without cable gland)
• Weight: 2,3 kg
• Certifications:
  - Class 1, Div. 1, Groups B, C, & D, T6
  - ATEX II 2 G Ex db IIC T6 Gb
  - IEC Ex db IIC T6 Gb
  - 2011/65/EU – RoHS Directive
  - 2014/30/EU – EMC Directive