Description
Honeywell MIDAS Sensor Cartridge for Ozone (O3) 0.036-0.4 ppm
Several Honeywell MIDAS® cartridges can be configured to read a number of different gases based on a common chemical family. Actual details for the sensor detection range are included in the sensor cartridge specification sheet and the MIDAS® technical manual. MIDAS® sensor cartridges can be ordered as part of a Kit with the universal MIDAS® transmitter, or as a replacement part. The detectable range is listed. With the exception of O2 (where ambient concentration is typically 20.9%), the sensors will display zero when no gas is present. All Cartridges with the format MIDAS-E-XXX are supplied with a 2 year (24 month) warranty.
Gas Measured | Ozone (O3) | |
---|---|---|
Cartridge Part Number | MIDAS-E-O3X | 2 year extended warranty |
Sensor Technology | 3 electrode electrochemical cell | |
Measuring Range (ppm) | O3 | 0 – 0.4 ppm |
Minimum Alarm 1 Set Point | 0.050 ppm | |
Repeatability | < ± 5 % of measured value | |
Linearity | < ± 5 % of measured value | |
Response Time t62.5 | < 60 seconds | |
Sensor Cartridge Life Expectancy | ≥ 24 months under typical application conditions | |
Operating Temperature | 0°C to +40°C (32°F to 104°F) | |
Effect of Temperature | Zero | < ± 0.0018 ppm / °C |
Sensitivity | < ± 0.5% /°C | |
Operating Humidity (continuous) | 15 – 90% rH | |
Effect of Humidity | Zero | Abrupt changes will cause a short term drift |
Sensitivity | < ± 1 % of measured value / % rH | |
Operating Pressure | 90 – 110kPa | |
Effect of Position | No effect in typical application | |
Long Term Drift | Zero | No Drift |
Sensitivity | < 5 % of measured value / 6 months | |
Calibration Gas | Ozone (O3) | |
Challenge Gas (Bump Test) | Chlorine (Cl2) | |
Warm Up Time | < 10 minutes | |
Storage Temperature | +5°C to +25°C (+41°F to +77°F) |
Each Midas sensor is potentially cross sensitive to other gases and this may cause a gas reading when exposed to other gases than those originally designated. The table below presents typical readings that will be observed when a new sensor cartridge is exposed to the cross sensitive gas (or a mixture of gases containing the cross sensitive species).
Gas / Vapor | Chemical Formula | Concentration Applied (ppm) | Reading (ppm HF) |
---|---|---|---|
Ammonia | NH3 | 100 | -3 |
Arsine | AsH3 | 0.2 | 0 |
Carbon Dioxide | CO2 | 5000 | 0 |
Carbon Monoxide | CO | 100 | 0 |
Chlorine | Cl2 | 1 | 1.2 |
Chlorine Dioxide | ClO2 | 1 | 1.5 |
Chlorine Trifluoride | ClF3 | 1 | 1 (Theoretical) |
Fluorine | F2 | 0.1 | 0.1 |
Hydrazine | N2H4 | 3 | -3 |
Hydrogen | H2 | 3000 | 0 |
Hydrogen Sulfide | H2S | 20 | 1.6 |
Nitric Oxide | NO | 100 | 1 |
Nitrogen | N2 | 100 % | 0 |
Nitrogen Dioxide | NO2 | 10 | 6 |
Sulfur Dioxide | SO2 | 20 | -0.2 |