AlpHa Measurement Solutions |
pH in Chemical Production
pH in Chemical Production
Chemical production plants manufacture high quality finished goods and raw materials. pH measurement of the entire process, including raw water used in production, is a critical tool for quality, safety, and performance. Where and how pH is measured varies widely in this broad-based industry. For example in the production of chlorine gas and sodium hydroxide, the starting brine solutions are monitored continuously to improve operating efficiency, reduce energy consumption, and prevent incidents. Both continuous and benchtop pH measurements are used in the chemical production industry. Various insertions (mechanical assemblies) and specialized housing materials are designed to ensure chemical compatibility for the specific measurement process.
- 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
- Tuff-Tip Option
- Custom Mechanical Assemblies Available
- Low Sodium Error Optional Glass
- Low Ionic Strength Optional Glass and Reference
- Warranty: 12 Months
- Form Factor
- Process Body
- 12 mm
- Cartridge
- Custom Options Available
- Housing Material Options
- Ryton® (PPS)
- ABS
- Epoxy
- Polycarbonate
- Kynar ® (PVDF)
- Polyethylene
- PEEK
- PVC / CPVC
- Teflon ™ (PTFE)
- Ultem® (PEI)
- Metal
- Stainless Steel
- Other Metals Available
- Glass
- Metal
- 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
- Double Junction
- Single 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
- 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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