Description
Long life and high accuracy in industrial applications
Polilyte Plus sensors have a maintenance-free design to withstand demanding industrial applications in chemical, petrochemical, process water, and wastewater treatment applications. Common reference problems such as clogging are eliminated with the two Single Pore junctions. The Polilyte sensors show good measurement accuracy in highly alkaline solutions as well as in samples with low conductivity. Additionally, the Everef-L reference cartridge ensures a long lifetime. A stabilized sensor signal and an extended sensor diagnosis thanks to the integrated Liquid Earth in the VP are further features of the Polilyte Plus.
Polilyte Plus Arc sensors offer intelligent sensors features for difficult industrial processes, with direct 4-20mA or Modbus output from the sensor, simplifying your process loops. With adapters for galvanically isolated outputs and diagnostics, Polilyte Plus H Arc sensors are ideal for new and retrofitted installations.
Specifications
| a-length | 120mm, 225mm, 325mm, 425mm |
|---|---|
| Electrical Connector | S7/S8, VP6, Memosens, Arc |
| Measurement Principle | Combination electrode; pH potential measured against reference |
| Measuring Range | pH 0 to 14 |
| Sensitivity | 57 to 59 mV / pH at 25 °C |
| Zero Point | 0 ± 20 mV |
| pH Glass | Hamilton Type H Glass |
| pH Glass Resistance | Moderate |
| Membrane Shape | Spherical |
| Diaphragm | Single Pore |
| Number of Diaphragms | 2 |
| Electrolyte | Polisolve Plus |
| Reference System | Hamilton Everef-L |
| Liquid Earth | Yes |
| Temperature Sensor | S7/S8 - No, Arc - Yes, Memosens - Yes, VP6 - Pt100 or Pt1000 |
| Diameter | 12 mm |
| Process Connection | PG13,5 |
| Wetted Parts | Glass FKM (Fluorocarbon Elastomer) |
| Serial Number | Yes |
| Recommended Storage | Hamilton Storage Solution or 3 M KCl |
| Certificate | Yes, with measured values in Buffer pH 4.01 and pH 7.00 |
| Autoclavable | Yes, max. Temperature 130 °C |
| CIP | No |
| Steam Sterilizable | Yes, max. Temperature 130 °C |
| Operating Temperature Range | 0 to 130 °C |
| Sample min Conductivity | 2 µS/cm |
| Pressure Range bar g | 0 to 16 bar (100 °C), 0 to 10 bar (130 °C) |
Specific Arc sensor specifications
| Analog Interface 1 | 4-20 mA for pH, programmable |
|---|---|
| Analog Interface 2 | 4-20 mA for Temp., programmable |
| Analog Interface 1 and 2 | Galvanically not isolated; pulse width modulation 3.5 kHz |
| Digital Interface | RS485 Modbus (max. 31 addresses) |
| Configurable Values | pH: pH, mV; Temperature: °C, K, °F |
| Temperature Sensor | NTC22 kOhm |
| Baud Rate | 4800, 9600, 19200, 38400, 57600,115200 bd |
| Operating Voltage | 7 to 30 VDC max. 150 mW |