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17124975-D

Replacement MX6 Sensor for Nitric Oxide (NO). Range 0 to 1,000ppm, Resolution 1ppm. Response time 7 seconds (T50)

£642.00

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Description

Nitric Oxide () is a colourless gas that is highly reactive and plays a significant role in both atmospheric chemistry and biological systems. While it is important for various bodily functions, at elevated concentrations in the air, it can be a health hazard, particularly as it readily reacts with oxygen to form nitrogen dioxide (), which is far more toxic.

Key Properties:

  • Colourless: Invisible to the naked eye.
  • Slightly Pungent/Sweet Odour: It has a faint odour that is not easily detectable, especially at hazardous concentrations. Its danger often lies in its rapid conversion to the reddish-brown, highly toxic gas, which has a sharp, biting odor.
  • Highly Reactive: Readily reacts with oxygen in the air to form .
  • Non-toxic (at very low levels, and plays a biological role): However, its rapid oxidation to means that exposure to almost always leads to exposure to , which is a potent respiratory irritant.
  • Density: Roughly the same density as air, so it mixes relatively easily.

 

Replacement Sensor, Part No. 17124975-D, Properties

Gas Detected
(Abbreviation)
Sensor Type Measurement Response time
(Seconds)
Calibration Gas
& Concentration
Range Resolution T50 T90
Nitric Oxide
NO
Electrochemical 0 to 1,000ppm 1.0 ppm 7 28 NO
25 ppm

Sensor may become unstable, if the battery is removed from the instrument or after the low battery warning is activated. If either incidence occurs, change the battery (or re-install the existing battery if it has suitable life remaining), then power the monitor ON then OFF, and allow at least 24 hours for the sensors to stabilise.

Toxic Gas Sensor Cross-sensitivity Table

Target Gas Sensor
CO CO
(H2 Low)
H2S SO2 NO2 Cl2 ClO2 HCN HCl PH3 NO H2 NH3
CO 100 100 1 1 0 0 0 0 0 0 0 20 0
H2S 5 5 100 1 -40 -3 -25 10 300 25 10 20 25
SO2 0 5 5 100 0 0 0 40 0 0 -40
NO2 -5 5 -25 -165 100 45 -70 30 0 -10
Cl2 -10 0 -20 -25 10 100 60 -20 6 -20 0 0 -50
ClO2 20 100
HCN 15 50 1 0 0 100 35 1 0 30 5
HCl 3 5 0 2 0 0 100 0 15 0 0
PH3 -100 425 300 100
NO 25 40 -0.2 1 5 -5 100 30 0
H2 22 3 0.08 0.5 0 0 0 0 0 0 0 100 0
NH3 0 0 0 0 0 0 0 0 0 0 0 0 100

The table above reflects the percentage response provided by the sensor (top row) when exposed to a known concentration of the target gas (column 1).
The numbers were measured under these environmental conditions: 20 °C (68 °F), 50% RH and 1 atm.
The specified cross-interference numbers apply to new sensors only and may vary with time as well as from sensor to sensor.
“-” means no data available.
This table is given as a reference only and is subject to change.

As Nitric Oxide reacts rapidly with air to become Nitrogen Dioxide, it may be worth adding the NO2 cell to your MX6. This sensor can be found on the link below

https://www.omniinstruments.co.uk/p/17124975-4

MX6 Replacement Sensor Cells

The MX6 gas detectors include field replaceable, plug-in sensors. The user can replace any sensor in the field and have the instrument in service after performing a simple field calibration. Up to 5 sensor can be installed, each in one or more specific location.

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