AlpHa Measurement Solutions |
pH in Laboratory
pH in Laboratory
Laboratory pH measurements require the highest level of accuracy and precision. pH measurements may be used to simply characterize a lab sample or used more extensively to validate a product or process. In other lab experiments, pH may be an indicator of an end-point, or used to ensure a lab sample is being preserved or pre-treated properly.
Laboratory applications may require specialized form factors and design features such as miniaturization, flow cell apparatus, and custom reference electrolytes. Refillable and free-flowing junctions are more conducive to overcoming measurement challenges and provide better performance.
Laboratory applications may require specialized form factors and design features such as miniaturization, flow cell apparatus, and custom reference electrolytes. Refillable and free-flowing junctions are more conducive to overcoming measurement challenges and provide better performance.
- 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 Option
- Warranty: 12 Months
- Form Factor
- 12 mm, 10 mm, 6 mm, 4 mm
- Cartridge
- Process Body
- Custom Options Available
- Housing Material Options
- Glass
- Ryton® (PPS)
- ABS
- Epoxy
- Polycarbonate
- Kynar ® (PVDF)
- Polyethylene
- PEEK
- PVC / CPVC
- Teflon ™ (PTFE)
- Ultem® (PEI)
- 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
- Calomel (Hg2Cl2)
- 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
- Semi Micro
- Spear
- 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)
