Dissolved oxygen meter & oxygen electrode Electrically isolated, the electrode can function in recording situations where ground-referred electrodes would fail ● Measures gas and dissolved oxygen ● Low O2 consumption ● 2 mm tip 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 (#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. Optional BNC-to-double banana adaptor (#13347) and BNC cable (#500184) allow ISO2 to be connected directly to your chart recorder. SYS-ISO2 Dissolved Oxygen Meter & Electrode OXELP Replacement Oxygen Electrode for ISO2 5378 Replacement Electrode Sleeve Kit (pkg of 4) Four sleeves with membranes, plus 10 mL refill solution. 7326 ISO2 Filling Solution (10 mL) 5377 Replacement ISO2 Start-up Kit Includes Calibration Bottle, 10mL Refill Solution, 1 cc Syringe, 2 Replacement Membranes Sleeves, MicroFil (28 ga.) 5399 T-Adapter Flow-Through Kit Includes 3 female luer T’s, 3 luer lock fittings, 3 2mm gaskets, 6 male luer to 1/8-in. tubing, 3 luer lock fittings 13347 Chart Recorder Adapter (requires BNC cable) 500184 BNC Cable BIOSENSING MEASUREMENT MODES % O2: ppm: Current: RESOLUTION ACCURACY ± 1.5% RECORDER OUTPUT DISPLAY POWER BATTERY LIFE DIMENSIONS SHIPPING WEIGHT ISO2 SPECIFICATIONS 0-100% 0-20 0-200 nA 0.1 ppm 1000 Ω resistance for chart recorders 3.5-digit LCD 2 nine-volt alkaline batteries, supplied 1000 hours, estimated 8 x 4 x 2 inches (20 x 10 x 5 cm) 5 lb (2.3 kg) OXELP OXYGEN ELECTRODE TIP DIAMETER STAINLESS STEEL SLEEVE OVERALL LENGTH CABLE LENGTH tor RESPONSE TIME DRIFT 2 mm 66 mm 125 mm 122 cm (4 feet), including BNC connec10 seconds, 90% response typical in well-stirred solution < 1%/min. Also see WPI’s temperature stabilzed chamber, page 65. UK: Tel: +44 (0)1462 424700 • wpiuk@wpi-europe.com World Precision Instruments www.wpiinc.com Germany: Tel: +49 (0)30-6188845 • wpide@wpi-europe.com US: Tel: 941-371-1003 • sales@wpiinc.com 61