Water matrix and process point
State nitrification, aeration, industrial process, river or other duty and describe the sample.
Browse by parameter
Online ammonia nitrogen analyzer selection center
Compare two integrated ion-selective NH₄-N analyzers by compensation requirement, sensor size, installation and system interfaces.
NH₄-NAmmonia nitrogen measurement
01
Select for the actual water matrix and ion compensation
Ion-selective ammonia measurement depends on the water matrix, pH, temperature and interfering ions. Selection must include the process point, minimum-to-peak NH₄-N, potassium conditions, mounting, cable and control interfaces—not only maximum range.
02
Confirm these conditions before selection
Minimum to peak NH₄-N
Provide minimum, normal, peak and alarm values within the documented 0.1–3000 mg/L range.
pH, temperature and potassium
Confirm pH, temperature, potassium interference and whether optional K⁺ measurement is required.
Mounting and interfaces
Confirm installation space, cable, power, 4–20 mA, relays, RS485, quantity and destination.
03
Typical applications
Nitrification processAeration tanksIndustrial process waterRivers and environmental water
04
Two verified FUNEL models
PINH3-900
Advanced compensated online ammonia analyzer
Integrated NH₄-N, pH and temperature with optional potassium-ion measurement.
Verified facts- NH₄-N 0.1–3000 mg/L
- Optional K⁺ 0.5–5000 mg/L
- Ø55 × 342 mm
PINH3-500
Compact online ammonia analyzer
Integrated NH₄-N, pH and temperature measurement in a smaller probe.
Verified facts- NH₄-N 0.1–3000 mg/L
- pH 5–10
- Ø37 × 253 mm
05
Ammonia nitrogen selection questions
How should I choose PINH3-900 or PINH3-500?+
Both cover NH₄-N 0.1–3000 mg/L. Compare PINH3-900 when optional K⁺ measurement is required; compare PINH3-500 when a smaller probe is preferred.
Do both models include pH and temperature measurement?+
Yes. Both supplied sheets document pH 5–10 and 0–40°C as part of the integrated ammonia measurement and compensation.
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