he D701 polarographic oxygen electrode Probe is designed for laboratory use to provide fast, accurate, stable readings with easy maintenance.
The D701 is a polarographic O2 electrode Probe (identical in design to the E-5046 electrode from Radiometer) consisting of a combined platinum- and silver/silver chloride electrode mounted in an electrode jacket and covered by a 20 um thick membrane of polypropylene. A reservoir of phosphate buffer and potassium chloride is trapped inside the electrode.
When a polarizing voltage of approximately 630 mV is applied to the platinum cathode, a current proportional to PO2 will be generated by reduction of the oxygen diffusing towards the cathode.
Included supplies:
- Electrode body & O-ring
- Oxygen membranes (15/pkg)
- Membrane O-ring (10/pkg)
- Membrane mounting tool
- Oxygen internal fill solution (electrolyte) (60 mL)
- Rubber end cap
Required supplies (not included):
- D607 Polarographic amplifier
- Nitrogen gas or sodium sulfite (Na2SO3)
- Distilled water, alcohol and lab wipes
Specifications:
| Range |
0 – 800 mm Hg |
Response Time |
30 – 60 sec. at 37oC (99% response) |
Oxygen Sensitivity |
10-11 A / mm Hg PO2 (approx.) |
Zero Current |
Less than 3 x 10-10 A at 37oC |
Accuracy |
Approx. 1% |
Temperature Range |
20 – 50oC |
Temperature Coefficient |
Approx. 3% / oC when equipped with a 20 um polypropylene membrane |
Reference Electrode |
Silver/silver chloride |
Membrane Material |
Polypropylene, thickness 20 um |
Electrode Solution |
Phosphate buffer – potassium chloride |
Plug type |
BNC UG-88/u |
Cable Length |
1 m |
Electrolyte Reservoir |
Approx 0.8 mL |
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