Product Overview

The S406 DIG/N digital ORP (Oxidation-Reduction Potential) electrode provides reliable ORP measurement thanks to the use of digital measurement technology. It communicates measurements via the MODBUS RTU protocol and features an integrated temperature sensor.

Main Features

• Reliable ORP measure thanks to the use of a digital measurement.
• Communication of measurements via MODBUS RTU protocol.
• Suitable for many industrial applications.
• Easy to connect to the process.
• Integrated temperature sensor.
• 11 bar operating Pressure.
• 100°C Operating Temperature.

Applications

The sensor S406 DIG/N is used for measurement of ORP in pure water, wastewater treatment plants, suspended solids processes, processes with pollutants, galvanic processes.

• ORP measure in wastewater.
• ORP measure in process monitoring and control.

The S406 DIG/N ORP Electrode is suitable for ORP measures in various applications. The porous Teflon® septum resists fouling and chemical attack. The new capillary temperature sensor design places the NTC behind the ORP-sensitive membrane for accurate temperature compensation and measurement.

Technical Data

Specification	Value
Materials	Glass electrode and PPS bodies, PPS probeholder, Viton® O-Rings, Electrode Diaphragm: Teflon®, Platinum measuring electrode, Electrolyte Gel
Thread	3/4” NPT probeholder, Pg13,5 the electrode alone
Measuring ranges	-1500 mV to +1500 mV
Measuring method	Digital
Resolution	1 mV
Accuracy	± 5 mV
Repeatability	± 1 mV
Response	< 30 s
Temperature sensor	NTC 30K
Temperature resolution	0.1 °C
Temperature accuracy	± 0.5 °C
Operating temperature	0 to 100 °C
Max operating pressure	11 bar
Minimum operating conductivity	50 μS/cm
Protocol type	Modbus RTU
Cable length	10m integrated with the sensor
Current absorption	< 1 W
Power supply	12 to 24 V DC
Dimensions (LxHxP)	27 x 213 x 27 mm