CATALOG INDEX
BY ALPHABETICAL
ORDER

CATALOG INDEX
BY DEPARTMENT

For more inf o:
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- [ Model 9200 Dissolved
Oxygen Meter ]
- [ Model 9300 Dissolved
Oxygen Meter ]
- [ YSI 5000 Dissolved
Oxygen Intrument ]
- [ YSI 5100 Dissolved
Oxygen Instrument ]
- [ YSI 550 DO Instrument ]
- [ YSI 52 DO Meter ]
- [ YSI 55 DO Meter ]
- [ YSI 58 DO Meter ]
- [ YSI 85 DO and
Conductivity Meter ]
- [ YSI 95 DO Meter ]

Model 9300
Dissolved Oxygen Meter

The Model 9300 is a comprehensively specified unit designed to enhance productivity in the analytical laboratory.

Utilising a Clark type polarographic electrode optimised for both stability and speed of response, dissolved oxygen levels can be measured either as % saturation or as concentration in mg/1 (ppm). The meter also has a mode dedicated to the determination of B.O.D. (Biochemical Oxygen Demand).

The graphics mode liquid crystal display enables plain language, menu based operating procedures and clear presentation of results. The results phase will enable the simultaneous display of dissolved oxygen levels and temperature. The menus are constructed to allow features to be accessed with single key strokes and provide operators with direct pathways to the modes or features of interest. The display is also instructional and will give clear error messages.

The sensor measures the partial pressure of oxygen and the reported results are influenced by atmospheric pressure. The Model 9300 allows atmospheric pressure values to be entered through the menu options and an automatic correction is effected.

Salinity correction is also necessary when concentration measurements are made in brackish or saline solutions. Provision is made on the Model 9300 for this correction to be made using conductivity or salinity (g/1) data.

A real time clock is built into the meter and displays either day, month and year or seconds, minutes and hours. Full compliance to GLP (Good Laboratory Practices) quality assurance protocols is ensured by recording and time stamping all results and calibration routines. The clock facility also enables calibration checks to be prompted at intervals determined by the operator or supervisor.

The unit includes a 100 location memory facility which enables the logging of results for subsequent recall to the display or downloading via the bi-directional RS232 link to a printer or PC. Individual results can be downloaded at any time by a single key press. All logged results and operator viable parameters are stored in non-volatile memory.

Continuous monitoring is possible using either the timed printout facility or the analog output. Operator programmable alarm points can be activated when measured parameters fall outside preset limits.