Product Overview

The S411/DIG digital conductivity sensor provides reliable conductivity measurement using graphite electrodes. Its measurement method employs two conductive electrodes with integrated temperature compensation.

Main Features

• Reliable conductivity measurement using graphite electrodes.
• Method of measurement with two conductive electrodes and temperature compensation.
• PVC body sensor and graphite electrodes.
• No mechanically moving parts.
• Immediate installation and easy maintenance.
• Modbus RTU serial communication protocol.

Applications

The S411/DIG probe is used for the digital measure of conductivity in pure and process waters.

• Measure of conductivity in wastewater.
• Measure of conductivity in primary, industrial, recirculating water.

Technical Data

Specification	Value
Materials	PVC body, Graphite electrodes
Thread	1” GAS BSP
Measuring ranges	0.00 μS to 20000 μS
Measuring method	Conductive with two electrodes
Calibration method	Calibration of single point, through the use of a certified conductivity solution.
Resolution	- 0.01 μS f.s 20 μS - 0.1 μS f.s 200 μS - 1 μS f.s 2000 μS - 10 μS f.s. 20000 μS
Accuracy	- ± 0.5 μS f.s 20 μS - ± 5 μS f.s 200 μS - ± 50 μS f.s 2000 μS - ± 500 μS f.s. 20000 μS
Repeatability	- ± 0.1 μS f.s 20 μS - ± 0.5 μS f.s 200 μS - ± 5 μS f.s 2000 μS - ± 50 μS f.s. 20000 μS
Response T90	< 60 s
Maximum refreshing time	< 1 second
Working temperature	0 to 50 °C
Max working pressure	10 bar
Max absorption	2 W
Mechanical protection	IP68 Sensor+cable
Cable	10, 30, 60 or 90m integral
Power supply	12 to 24 V DC
Signal interface	RS-485 Modbus RTU Protocol
Temperature compensation	Via internal NTC, external NTC optional
IP67 Connector	Yes