PROBE SPECIFICATIONS (YSI 5739, 5905, 5239, 5718 AND 5750 PROBES)
Cathode:
Gold
Anode:
Silver
Membrane:
.001” FEP Teflon
.0005” FEP Teflon available, YSI 5776
Electrolyte for the 5739, 5718, and 5750 probes:
KCL with Kodak Photo-Flo
Electrolyte for the 5905, 5239 probes:
KCl with NA
2
SO
4
Dissolved Oxygen Accuracy:
±
0.1 mg/L or
±
1% of reading, whichever is greater
Operating Temperature Range:
15° to 35°C
Temperature Sensitivity:
When measuring oxygen, the probe output current increases
approximately 3.5% per 1°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.
Temperature Sensor Accuracy:
+ 0.2°C
Pressure Compensation:
Effective 0.5% of reading with pressures to 100 psi (230 feet of seawater)
Polarizing Voltage:
0.8 volts nominal
Probe Current:
Air at 30°C, 19 microamps nominal
Nitrogen at 30°C, 15 microamps or less
Probe Response Time:
Typical response for temperature and dissolved oxygen readings is 90% in
10 seconds at a low constant temperature of 30°C with the 5775 membrane. DO response and low
temperature and low DO is typically 90% in 30 seconds. YSI 5776 High Sensitivity membranes may
be used to improve response at low temperature and DO concentrations.
YSI Incorporated
YSI 58 DO Meter
29
Summary of Contents for 58
Page 1: ...YSI 58 Dissolved Oxygen Meter Operations Manual ...
Page 2: ......
