ISO2

Dissolved oxygen meter and oxygen electrode
Electrically isolated, the electrode can function in recording situations where ground-referred electrodes would fail.

Isolation prevents adverse interaction with other electrodes and instruments. Highly accurate and stable ISO2 measures oxygen concentrations in aqueous solutions and in gas mixtures. Measurement modes are percent oxygen, parts per million, and oxygen reduction current in nanoamperes.

The lower detection limit (DL) for ISO2 (in gaseous or in liquid phase) is 0.1 ppm or 0.1%. Oxygen concentration around 0.5 ppm or 0.5% and up can be routinely measured in the gaseous or in the liquid phases.

DL for a particular sensor tends to be different in gaseous and liquid phases when the baseline noise level is also different. In the case of ISO2, however, the baseline noise level is very close whether the electrode is immersed in solution or used in the gaseous phase, so DL for the ISO2 remains relatively close in either phase.

The small tip size (2 mm diameter) and low oxygen consumption of the OXELP electrode make it ideal for measurements in vivo or in vitro. With a T-Adapter (Part # 5399), the sensor probe can be used also for continuous-flow monitoring of oxygen in small fluid volumes. OXELP also features a fast response time, typically 10 seconds, and the rugged stainless steel sleeve covering the sensor is autoclavable. Optional BNC-to-double banana adaptor (Part # 13347) and BNC cable (Part #2851) allow ISO2 to be connected directly to your recorder. A spare membrane sleeve is included with each OXELP electrode. A start-up kit, with filling solution, filling syringe, and calibration bottle is included

ISO2 SPECIFICATIONS
MEASUREMENT MODES
%02:
ppm:
Current:
0-100%
0-20
0-200 nA
RESOLUTION 0.1 ppm
ACCURACY ± 1.5%
RECORDER OUTPUT 1 mV = 1 nA = 1% 02 = 1 ppm
DISPLAY 3.5-digit LCD
POWER 2 nine-volt alkaline batteries, supplied
BATTERY LIFE 1000 hours, estimated
DIMENSIONS 8 x 4 x 2 inches (20 x 10 x 5 cm)
OXELP OXYGEN ELECTRODE
TIP DIAMETER 2 mm
STAINLESS STEEL SLEEVE 66 mm
OVERALL LENGTH 125 mm
TIP DIAMETER 2 mm
CABLE LENGTH 122 cm (4 feet), including BNC connector
RESPONSE TIME 10 seconds, 90% response typical in well-stirred solution
SHIPPING WEIGHT 5 lb (2.3 kg)
    Key Benefits
  • Measures gas and dissolved oxygen
  • Low O2 consumption
  • 2 mm tip
 
ISO2 Dissolved Oxygen Meter, Electrode and start-up kit.
OXELP Replacement Oxygen Electrode for ISO2
5378 Replacement Electrode Sleeve Kit (pkg of 4), ISO2 Filling Solution (electrolyte) 10 mL
7326 ISO2 Filling Solution (electrolyte) 10 mL
5377 Replacement Start-up Kit (T-adapter kit, calibration bottle, 1CC syringe, 2 sleeves with membranes, 28 gauge Microfil
5399 T-Adapter Flow-Through Kit
13347 Chart Recorder Adapter
500184 BNC Cable
LabTrax4 4 channel digital recorder