Introduction

The PROBEST PCM200-NH3N is a high-precision online ammonia nitrogen analyzer designed for continuous real-time monitoring of ammonia nitrogen (NH₃-N) in water. Adopting the internationally recognized salicylic acid spectrophotometry method, the monitor delivers stable, accurate and reliable measurement for drinking water, surface water, municipal wastewater, industrial wastewater and pollution discharge monitoring.

✅ Salicylic Acid Optical Colorimetry – High accuracy, strong anti-interference, compliant with standard detection methods ✅ Sapphire Core 10-Port Valve – Excellent wear resistance, acid & alkali resistance, organic solvent resistance, long service life and high stability ✅ Unique Reference Optical System – Minimizes interference from slight displacement or contamination of the digestion chamber, ensuring stable readings ✅ Waste Liquid Separation Function – Separates high-concentration reaction waste and low-concentration cleaning waste for safer discharge ✅ Automatic Dilution Function – Automatically switches measurement ranges based on actual water quality conditions ✅ Three-Level User Authorization Management – Secure operation and management control ✅ Powerful Quality Control (QC) – Supports standard recovery, zero verification, parallel sample testing; auto/manual/remote startup ✅ Automatic Fault Diagnosis & Alarm – Parts failure, over-range, low reagent, overheating protection and real-time alarm upload ✅ Auto-Recovery After Power Failure – Automatically discharges residual liquid and restores working status after power reset ✅ Data Logging & Storage – Stores measurement data, process logs and alarm records for up to 3 years; data export via USB drive ✅ 7-inch HD Touch Display – Intuitive interface, easy operation and real-time status monitoring

PROBEST is an ISO9001 certified manufacturer with professional R&D capabilities and multiple patents. We focus on developing reliable water quality monitoring instruments for global customers.

The PCM200-NH3N online ammonia nitrogen monitor features stable performance, low maintenance, high reliability and strong compatibility – ideal for long-term unattended online water quality monitoring.

Core Technical Specifications

• Model: PCM200-NH3N

• Measuring Range: 0–300mg/L (customizable range available)

• Power Supply: AC 220V ±10%

• Rated Power: 200W

• Signal Output: Modbus RS485

• Working Temperature: 5 ~ 40℃

• Relative Humidity: ≤85%

• Operation: 7-inch touch screen for parameter setting, data check & alarm viewing

Product Advantages

Typical Application Fields

• Municipal wastewater treatment plants

• Industrial factory wastewater discharge outlets

• Surface water environmental monitoring stations

• Petrochemical, printing & dyeing, food processing wastewater monitoring

• Aquaculture water quality supervision