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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
Applications
The pHOptica 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, and dipping probe pH measurements.
Mini Sensor Features
- 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 0.1pH units for 10,000 measurements (4 days measurement in the 30 sec data update mode).
| Data Interface | RS232 |
| Sample Rate | 1 sample per second |
| Measuring pH Range | 5-9 |
| Resolution (at 20°C) | ±0.03 (microsensors); ±0.01 (minisensors) |
| Response Time | < 1 min |
| Dimensions | 185 x 110 x 45 mm |
| Weight | 630g |
| Power Supply | 100-220V AC |
| 503538 | pH MiniTip, fiber optic pH sensor dipping probe, disposable (4mm OD) pkg of 3 |
| 502120 | pH MiniFlow, fiber optic pH flow sensor, pakg of 3 (requires 503110) |
| 502122 | pH MiniSpot, fiber optic pH spot sensors, pkg of 10, OD 5mm (requires 501644) |
| 501644 | Polymer Optical Fiber with 1 SMA connector |
| 503110 | Fiber Optic Cable with 1 SMA connector |
