KWS-250 NH4-N Ammonia Nitrogen Sensor

Introduction

The KWS-250 integrated online NH4-N ammonia nitrogen Sensor is fabricated using a PVC membrane-based ammonium ion selective electrode for testing ammonium ion content in water with temperature compensation to ensure fast, simple, accurate and economical testing.

Feature

• Signal output: RS-485 bus, Modbus/RTU protocol, convenient to connect to PLC,DCS, industrial control computer, general controller, paperless recording instrument or touch screen and other third-party equipment.
• The patented ammonium ion probe, the internal reference solution oozes extremely slowly from the microporous salt bridge at a pressure of at least 100 KPa (1 Bar). Such a reference system is very stable and has a longer electrode life than conventional industrial electrodes.
• Easyto install: 3/4 NPT thread (pipe thread) for easy submersible installation or installation in pipes and tanks.
• IP68 protectiongrade.

Electrical connection

• Red wire-power cord（12～24V）
• Black wire-ground wire（GND）
• Blue Line-485A
• White Line-485B
• Bare wire-shield layer