pHOptica™ A novel fiber optic pH system pHOptica™ is a pH measuring system which uses fiber optic sensors and patented DLR technology. This method allows referenced measurements with single excitation to be implemented. Features of pHOptica Meter ● Single-channel, compact, easy to transport fiber-optic meter for pH measurements with miniature sensors. ● Two 12-bit, programmable analog outputs, with electrical isolation. ● One external trigger input, with electrical isolation. ● Computer with RS232 interface required for operation. ● User-friendly software saves and visualizes measured values. ● Several pHOptica meters can be connected to one computer. ● Temperature variation is recorded using a temperature sensor. Features of pH optical sensors ● No reference electrode is needed ● Immune to electrical interferences and magnetic fields ● Low drift ● High spatial resolution due to small tip size ● Measurement in very small sample volumes ● Additional optical isolation of the sensor tip is available for measurements in colored or photosynthetically active samples. BIOSENSING pHOptica Micro system The pH Optica micro system is a single channel pH system for use with fiber optic micro sensors. The applications include: ● Penetration or implantation into living tissue (heart, muscle or animal blood vessels). ● Soil implantation for pH measurement. ● Implantation into customer-made housing. To protect the small glass fiber tip against breaking, suitable housings and tubings around it, depending on the respective application, were designed. pHOptica Mini system The pH Optica mini system is a single channel pH system for use with fiber optic mini sensors, foil and spot surface sensors. The applications include: ● Non-invasive and non-distractive pH measurements from outside through flask walls (cell culture) ● Online pH monitoring by flow through cells ● Dipping probe pH measurements pH mini sensors ● OD of the dipping sensor is 4 mm. ● Sterilization of the pH sensor spots via gamma radiation. ● The pH mini sensor meter is based on 2 mm PMMA waveguides. ● Drift of 0.1 pH units for 10,000 measurements (4 days measurement in the 30 sec data update mode). Two different housings and sensor spots (sensorfoils) are offered: Needle-Type Housing Sensor— the glass-fiber with its pH-sensitive tip is protected inside a stainless steel needle (18 ga.); fiber has to be extended during measurement; penetration through septum. Implantable sensor— without any housings implantation into animal blood circuits; soil implantation; implantation in customer-made housings POF Coated with a pHSensitive Foil—Small and robust pH dipping sensor; no reference electrode needed. pH micro sensors ● Tip size 140 micrometer. ● Drift of 0.1 pH units for 2000 measurements (16 hours measurement in the 30 sec data update mode). Flow-Through Cell with Integrated pH Sensor—On-line monitoring; can be easily connected via Luer-Lock adapters. Planar pH Sensitive Foils and spots—non-invasive and non-destructive measurement from outside through the wall of the flask; online monitoring. PHOPTICA SPECIFICATIONS DATA INTERFACE SAMPLE RATE MEASURING pH RANGE RESOLUTION (at 20 °C) RESPONSE TIME DIMENSIONS WEIGHT POWER SUPPLY RS232 1 sample per second 5-9 ± 0.03 (microsensors); ± 0.01 (minisensors) < 1 min 185 x 110 x 45 mm 630 g 100 - 220 V AC MINISENSOR SYSTEM (cannot be used with microsensors) PH-OPTICA-MINI Fiber Optic pH Meter for minisensors, foils and spots 503538* pH MiniTip, fiber optic pH sensor dipping probe, disposable (4 mm OD), pkg of 3 502120* pH MiniFlow, fiber optic pH flow sensor, pkg of 3 *Requires #503110 502122** pH MiniSpot, fiber optic pH spot sensors, pkg of 10, OD 5 mm **Requires #501644 501644 Polymer Optical Fiber with 1 SMA connector 503110 Fiber Optic Cable with 1 SMA connector MICROSENSOR SYSTEM (cannot be used with minisensors) PH-OPTICA-MICRO Fiber optic pH meter for microsensors 502123 pH MicroTip (needle-type), fiber optic pH sensors (140 µm OD), pkg of 3 502124 pH MicroImplant, fiber optic pH implantable sensor (140 µm OD), pkg of 3 www.wpiinc.com Germany: Tel: +49 (0)30-6188845 • wpide@wpi-europe.com US: Tel: 941-371-1003 • sales@wpiinc.com UK: Tel: +44 (0)1462 424700 • wpiuk@wpi-europe.com World Precision Instruments 63