Type 8201 pH Measuring System
The Type 8201 pH measuring system is designed for hygienic applications, offering robust, glass-free construction and high chemical and temperature resistance. It is ideal for measuring pH values in liquids between pH 0 and pH 12 at temperatures up to 140°C and pressures up to 6 bar.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Sensor Tube | Enamelled steel tube |
| Process Connection | Stainless steel 1.4404 |
| Electrode Head | PVDF |
| Diaphragm | Ceramic |
| Seal | EPDM |
| Electrolyte Vessel | Stainless steel 1.4301 |
| Measuring Chain Zero Point pH | 8.65±1pH |
| Measuring Chain Isotherm Point pH | 1.0pH±0.15 |
| Measuring Deviation | Max. ±0.05pH |
| Repeatability | 0.05pH |
| Measurement Chain Potential | ±600...400mV |
| Diaphragm Resistance | Approx. 20...200kΩ |
| Insulation Resistance | ≥10⁹Ω |
| Inner Capacity (with Connection Cable) | ≤5nF |
| Inner Inductivity (with Connection Cable) | Negligibly low |
| Thermal Shock Resistance | ΔT=120°C |
| Fluid Conductivity | Min. 1μS/cm |
| Fluid Pressure | 1...6bar rel. |
| Relative Air Humidity | ≤85% without condensation |
| Height Above Sea Level | Max. 2000m |
| Operating Condition | Continuous |
| Equipment Mobility | Fixed |
| Application Range | Indoor and outdoor |
| Degree of Protection According to IEC/EN 60529 | IP68 |
| Installation Category | Category I according to UL/EN 61010-1 |
| Pollution Degree | Degree 2 according to UL/EN 61010-1 |
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