| General |
| The EC92DIS portable oxygen analyser will detect levels of oxygen as low as 1ppm, up to high percent levels and can be used on most industrial gases and atmospheres. There is no need for routine maintenance of the fuel cell, and the instrument may be easily calibrated, using ambient air or standard calibration samples. The innovative design of the fast purge/cell seal system means readings of single digit parts per million oxygen can be obtained within a few minutes. Apart from a single switch, no adjustments or controls are necessary, making the unit ideal for use by non-technical personnel. Operation of the EC92DIS is made easy by the internal sample system. Taking gas measurements is simply a matter of connecting the gas line, purging for a short time and switching a valve position. When not in use the cell is sealed. The digital display is easily visible in sunlight or low level light; can display readings below 1 part per million and indicate low battery power. A calibration adjustment on the front panel can be set to give a reading of 20.9% when the analyser is working on clean air. Using this method ensures that the instrument will be absolutely accurate on any selected part of its operational range. If calibration of trace levels is required, certified calibration gas may be used. Features
Maintenance-free sampling cell Air calibration facility Selectable ranges % and ppm Powered by 2 x PP3 batteries Certified to EEx ia IIC T4 Applications Offshore Gas purity checking Inert atmospheres and cylinder gas analysis in hazardous areas Hydrogen plants Chemical plants Pharmaceutical plants Oil refineries Petrochemical Centrifuges |
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| Technical Specification |
| Ranges | 0-30% plus 3 selectable from 0-20, 0-200, 0-2000 (ppm) 0-2%, 0-20% |
| Resolution | 0.05% of scale |
| Accuracy | >10ppm ±2% of reading at 20°C ±5% of reading over temperature range <10ppm ±2% of reading + 0.4ppm at 20°C ±5% of reading + 0.4ppm + 0.15ppm/°C over temperature range |
| Response time | 90% of reading within 20 seconds |
| Calibration range | Ambient (20.9%) or certified gas |
| Measuring cell type | Electrochemical fuel cell |
| Operating Conditions |
| Sample inlet pressure | 1.0 to 10 Barg |
| Sample flow rate | Internally regulated to 150ml/min |
| Sample temperature | 0 to 40°C |
| Ambient temperature | 0 to 40°C, RH 0-99% non-condensing |
| Sample connections | 1/8" OD compression fitting |
| Unsuitable gases | Corrosives, acid gases and solvents |
| Power Requirements |
| Power supply | 2 ~ PP3 dry batteries, fitted internally |
| Battery life | 36 hours, normal life |
| Battery low indication | Automatic warning |
| Display type | Digital LCD meter |
| Cabinetry And Mounting |
| Enclosure | Sheet metal/cast aluminium |
| Installation | Free standing for desk, shelf or panel mounting |
| Dimensions | 257W ~ 102H ~ 262D (mm) |
| Panel cutout | 240W ~ 99D (mm), if required |
| Weight | 3kg |
| Ingress protection | IP40 |
| Certification | EC92DIS approved to ATEX Approved for EEx ia IIC T4. Certificate number Baseefa 04ATEX0258X |
| Options |
| Carrying case |
| Remote probe |
Gas Analyzers 
