IQ SensorNet Alyza Analyzer NH4


The Alyza IQ NH4 is an online, wet-chemistry cabinet analyzer designed for continuously monitoring ammonium in the biological tank and effluent streams of municipal wastewater treatment facilities.

Alyza IQ NH4 provides accurate, reliable data at low measurement ranges with minimal maintenance requirements or operator intervention. The IQ Analyzer features a revolutionary MultiPort mixing valve that dramatically reduces chemical use and maintenance requirements. In addition, Alyza has both an automatic cleaning and calibration option further reducing service requirements.

Alyza IQ is weatherproof and can be deployed anywhere in the wastewater treatment process. Applications include monitoring in biological tanks for ammonium-based aeration control and plant effluent locations to ensure compliance. The analyzer is available as a single-channel or two-channel instrument allowing you to sample from two different locations. The Alyza analyzer can be used as a stand-alone analyzer or be connected to a YSI IQ SensorNet network of sensors.

  • Brand




IQ Analyzer NH4 offers:

  • Reliable, accurate data at low measurement concentrations
  • Extremely low chemical use
  • Automatic or manual calibration, 1 or 2 point
  • Automatic cleaning, lowering maintenance requirements
  • Serviceable – safe and easy replacement of reagents, no need for expensive service contracts
  • One or two channel versions available
  • Reliable sample delivery pump(s) built into the cabinet
  • Uses Indophenol (blue) method of detection
  • Filtration unit allows analyzer to process samples with solids concentrations up to 6,000 mg/L

Applications include:

  • Biological tank monitoring for ammonia-based aeration control and/or ensure compliance
  • Effluent monitoring to ensure compliance


Accuracy MR1: ± 2 %, ± 0.02 mg/l

MR2: ± 3 %, ± 0.10 mg/l

Calibration Automatic or manual 1- and 2-point calibrations
Chemical Use MR1 reagent consumption 10 minute interval: 90 days; MR2 reagent consumption 20 minute interval: 45 days; Cleaning and calibration solution at a daily cleaning/calibration interval: 180 days
Cleaning Automatic cleaning with cleaning solutions
Connectivity / Communications interfaces via IQ Sensor Net-components, relays, Modbus TCP, analog outputs
Dimensions 30.5 x 26.6 x 17.5 in.
Dissolved Solids Limit < 6 g/L (before filtration)
Equipment used with IQ SensorNet 2020 3G Controller, 282/284 Controller
Languages English, German
Measurement Method Indophenol (blue) method
Measurement Range MR1: 0.02 to 5.00 mg/l NH4-N


MR2: 0.10 to 20.00 mg/l NH4-N

Operating Temperature -4 to 104 °F (-20 to +40) °C
Parameters Measured Ammonium
Power 120 VAC / 240 VAC, 50/60 Hz
Resolution MR1: 0.01 mg/l NH4-N

MR2: 0.01 mg/l NH4-N

Sample Streams/Channels 1- and 2-channel versions available
Warranty 2 Years
Weight 81.6 lbs (37 kg) (without liquids)
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