
Jenway offer a selection of Dissolved Oxygen Meters. The main differences between the instruments are outlined below, and further details can be found by following the links to the instruments individual page.
The Model 970 portable Dissolved Oxygen Meter uses a Clark type polarographic sensor, providing stable, accurate and repeatable results. Measurements are fully compensated over the range 0 to 60ºC and can be expressed as % or mg/l.
The Model 9150 Dissolved Oxygen Meter is part of the Premier Portable range. This model offers the user the ability to measure Dissolved oxygen as either % saturation or as concentration in mg/l (ppm).
The Model 9200 Dissolved Oxygen Meter is also part of the Premier Portable range. This model is a fully specified unit combining ease of use and robust construction. Dissolved oxygen measurements can be taken as either % saturation or as concentration in mg/l (ppm). This instrument contains powerful in-built consumables dedicated to the Biochemical Oxygen Demand (B.O.D.) determination.
The new Model 9500 Dissolved Oxygen Meter is designed for use in a laboratory environment, and is powered by a 9V AC Power Supply Unit. This model also contains a dedicated Biochemical Oxygen Demand mode - 25 BOD tests (up to 10 samples per test). Measurements are fully compensated over the range 0 to 60ºC (32 to 140ºF), and can be displayed as either % or mg/l.
Below is a brief summary of the key specification differences between the Jenway Dissolved Oxygen instruments. Full specifications can be found by following the links to the instruments individual page.
| Model | 970 | 9150 | 9200 | 9500 ![]() |
| Style | Portable | Portable | Portable | Laboratory |
| Display | Back-lit LCD | Custom Segment LCD | 114 x 128 graphics LCD | Back-lit 1/8 VGA monochrome LCD |
| DO2 | ||||
| Range | 0 to 199% 0 to 25.0% 0 to 19.99mg/l |
0 to 199% 0 to 25.0% 0 to 19.99mg/l |
0 to 199% 0 to 25.0% 0 to 19.99mg/l |
0 to 199% 0 to 25.0% 0 to 19.99mg/l |
| Resolution | 1% 0.1% 0.1mg/l |
1% 0.1% 0.1mg/l |
1% 0.1% 0.1mg/l |
1% 0.1% 0.01mg/l |
| Accuracy | ±2% within 10ºC of calibration temperature |
±2% within 10ºC of calibration temperature |
±2% within 10ºC of calibration temperature |
±2% within 10ºC of calibration temperature |
| ATC Range | 0 to +60ºC +32 to +140ºF |
-10 to +60ºC +14 to +140ºF |
-10 to +60ºC +14 to +140ºF |
0 to +60ºC +32 to +140ºF |
| Power | 2 AA Cells | 3 AA Cells | 3 AA Cells | 9V AC Power Supply |
| Real Time Clock | No | No | Yes | Yes |
| Datalogging | No | 100 results | 100 results | 512 results |
| Dimensions | 175 x 75 x 35mm | 200 x 80 x 60mm | 200 x 80 x 60mm | 250 x 210 x 55mm |
| Weight | 250g | 370g | 370g | 850g |
An electro-chemistry theory and measurement guide is now available in PDF format
To view a PDF file you will need the Adobe Acrobat Reader.