AlpHa Measurement Solutions |
pH in Research & Education
pH in Research & Education
The most widely tested and studied chemical water parameterin chemistry, biology, and environmental studies is pH. Educational institutions use a wide variety of pH sensors to demonstrate how pH values are measured and interpreted. Overall, the inclusion of pH theory and measurement in various educational curriculums provides students with essential scientific knowledge and practical skills applicable across multiple disciplines. pH sensors can be custom designed to suit both general purpose or specific research application needs. Trade-offs between performance, durability, and cost-efficiency should be considered when designing a sensor.
- pH Range: 0 to 14 pH
- Response Time: 10s
- Low Ionic Strength Response Time: < 30s
- Drift: ±0.05 pH (in 24 hours)
- Accuracy: ±0.02 pH
- Temperature Range: -5 to 135°C
- HF Resistant Option
- Low Sodium Error Optional Glass
- Low Ionic Strength Optional Glass and Reference
- Warranty: 12 Months
- Form Factor
- 12 mm
- Cartridge
- Process Body
- Custom Options Available
- Housing Material Options
- Ryton® (PPS)
- ABS
- Epoxy
- Polycarbonate
- Kynar® (PVDF)
- Polyethylene
- PEEK
- PVC / CPVC
- Teflon™ (PTFE)
- Ultem® (PEI)
- Glass
- Metal
- Stainless Steel
- Other Metals Available
- Thermistor Options
- PT100 (type A & B)
- PT1000
- 10 kohm
- 30 kohm
- 100 kohm
- Any commercially available thermistors and custom options
- Common temperature accuracy is ±0.3°C and can vary based on thermistor option chosen
- Reference System
- Ag / AgCl
- Differential
- Custom Options Available
- Reference Junction Options
- Single Junction
- Double Junction
- Custom Options Available
- Reference Junction Material / Design
- Ceramic Pin / Annular / Disc
- Fiber / Pellon
- Porous Plastic (PTFE / HDPE / PP)
- Sleeve Junction / Free Flow (liquid / liquid or ground glass joint)
- Open Aperture
- Solid State
- Custom Options Available
- Solution Ground
- Integrated in Thermowell
- Integrated in Body Housing
- Stand-alone
- Custom Options Available
- Reference Electrolyte
- Sealed
- Soft Gel
- Solid Gel
- Refillable
- Liquid
- Soft Gel
- Custom Options Available
- Sealed
- Glass Sensor Shape
- Bulb
- Dome
- Flat
- Spear
- Semi Micro
- Integrated Insertions
- 3/4" NPT
- 1/2" NPT
- 1" NPT
- PG 13.5
- Custom Options Available
- Analog
- Millivolts
- 4 – 20 mA
- 0 – 5 V
- 0 – 10 V
- Custom Options Available
- Custom options available with preamp capabilities
- Digital
- RS-485 MODBUS RTU
- Custom Options Available
- Connectors
- Integrated Connectors (detachable or cableless)
- S7
- S8
- Integrated BNC
- Variopin
- Custom Options Available
- Connectors with Cables (including temperature)
- BNC
- DIN
- MOLEX
- Mil-spec
- 2.5 mm / 3.5 mm phono
- RCA
- Spade Lugs
- Tinned Leads
- LEMO
- Circular Connectors
- Any commercially available connectors and custom options available
- Integrated Connectors (detachable or cableless)
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