YSI 5739 Dissolved Oxygen Meter Probe

Dissolved oxygen accuracy: +/-0.1 mg/L or +/-2 percent of reading, whichever is greater. Electrolyte: 5739, 5718, 5750 KCl with Kodak Photo-Flo, 5905, 5239 KCl with NA2SO4. Membrane Material: 5905 FEP fluoropolymer film cap, 5239, 5718, 5739, 5750 0.001" FEP fluoropolymer film, 0.0005" FEP fluoropolymer film available, YSI 5776. Pressure Compensation: effective 0.5 percent of reading with pressures to 100 psi (230 feet of seawater). Polarizing Voltage: 0.8 volts nominal. Probe Current: air at 30 degree C 19 microamps nominal, nitrogen at 30 degree C 15 microamps or less. Probe Response Time: 5905 Typical response to a step change in dissolved oxygen at 20 degree C is 90 percent of the change in 30 seconds. 5239, 5718, 5739, 5750 typical response for temperature and dissolved oxygen readings is 90 percent in 10 seconds at a low constant temperature of 30 degree C with the 5775 membrane. DO response and low temperature and low DO is typically 90 percent in 30 seconds. YSI 5776 High Sensitivity membranes may be used to improve response at low temperature and DO concentrations. Sensor Materials: Cathode - gold, Anode - silver. Temperature: accuracy +/- 0.2 degree C, operating range 0 degree to 45 degree C. Sensitivity when measuring oxygen, the probe output current increases approximately 3.5 percent per 1 degree c of increase in temperature. the circuitry automatically compensates for this effect in a typical probe. However, the exact temperature sensitivity of an individual probe may vary slightly according to its condition. Therefore, a probe should be calibrated at a temperature close to the measurement temperature in order to minimize the possible effect of such variation. 1 Year warranty.