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Brand: Swan Analytical
Swan AMI Turbitrace Low-Level Turbidity Analyzer for Pure and Ultra-Pure Water
Description
High-precision nephelometer for low-level turbidity
The Swan AMI Turbitrace is used for the measurement of low-level turbidity in pure and ultra-pure water. The manual describes a high-precision nephelometer complying with ISO 7027 (EN 27027, DIN 38404), and the swan.ch page lists semiconductor use. It is a closed, pressure-tight sample system, which the product page says avoids outgassing of the sample.
Turbidity expresses how much of the light traveling through water is scattered by suspended particles. In the Turbitrace the beam from an emitter LED passes through the sample and is received by a transmitted-light sensor, while a scattered-light sensor at a 90 degree angle detects light scattered by particles. The ratio between the scattered signal and the reference receiver is the measure of turbidity.
Technical specifications
Values are from the Operator’s Manual A-96.250.131, sections 2.1.
| Parameter | Specification |
|---|---|
| Instrument type | High-precision nephelometer to ISO 7027 (EN 27027, DIN 38404) |
| Measuring range | 0.000-100.0 FNU/NTU |
| Precision | +/-0.001 FNU/NTU or 1% of reading, whichever is greater |
| Response time | t90 typically below 15 s after sample entry at 10 l/h |
| Calibration | Factory calibrated with formazine; optional verification kit with zero point of about 0 FNU |
| Sample flow | 5-20 l/h |
| Sample temperature | 1-40 C |
| Inlet / outlet pressure | 1-10 bar (never above 10 bar) / pressure-free |
| Connections | Sample inlet Serto 4 x 6 mm; outlet hose nozzle 15 x 20 mm |
| Power supply | 100-240 VAC (+/-10%), 50/60 Hz, or 10-36 VDC; maximum 35 VA |
| Transmitter | Aluminum, IP 66 / NEMA 4X; -10 to +50 C; backlit LCD 75 x 45 mm |
| Panel | PVC, 280 x 850 x 200 mm, 9 kg |
Sample path, zero point and cleaning
The sample enters through a solenoid valve and a manual five-way valve into the measuring chamber, then leaves through a pressure regulator that sets the sample flow. It then passes a capillary and a flow meter into the drain funnel. The system includes a zero point filter, a calibration or grab sample port and a humidity absorber. A drain valve lets the user empty the chamber and keep it free of deposits.
The product page lists programmable automatic zero point measurement for drift compensation, a fast response of T90 under 15 seconds at 10 l/h, and a valve and connector for calibration according to ISO 7027.
Pressure limit and installation checks
The measuring chamber is under the pressure of the sample line. The manual warns that if the inlet pressure is too high, moisture can enter the housing of the measuring electronics and cause incorrect measurements and failure. The maximum inlet pressure of 10 bar must never be exceeded, even briefly, so protect the instrument from pressure surges in the sample line.
Confirm the sample pressure range, flow and temperature, the supply type, communication option and whether the zero point verification kit is needed. Swan lists AMI Turbiwell and AMI Turbitrack turbidity analyzers as separate products for other duties, so use the Turbitrace where low-level turbidity in pure or ultra-pure water is the requirement.
Documents and quotation
The attached Swan Operator’s Manual A-96.250.131 (firmware V6.24 and higher) and the swan.ch product page are the sources for this page. Seven Star LLC supplies Swan products as an independent supplier in Muscat. Send the supply type, options and quantity with your enquiry. Related analyzers are listed under liquid analytical systems.
Datasheets & Documents
- Manual Swan AMI Turbitrace Operator's Manual A-96.250.131 (firmware V6.24 and higher, 2021) Download
Reviews (0)
About brand
Swan Analytical Instruments (SWAN Analytische Instrumente AG) is a Swiss manufacturer of online water analysers, founded on 1 January 1991 in Hinwil by a group of engineers, chemists and physicists. It started with swimming pool and sanitary water, then grew quickly in water-steam cycle monitoring for power plants and ultrapure water for semiconductors. Swan is 100 % employee-owned.
Seven Star LLC is an independent supplier in Muscat. We list selected Swan AMI analyzers for power, desalination and water plants in Oman and the GCC.
Swan Analytical company profile
| Founded | 1 January 1991, Hinwil, Switzerland |
|---|---|
| Headquarters | Hinwil, Canton of Zurich, Switzerland |
| Ownership | 100 % employee-owned |
| Main markets | Power plant water-steam cycle, ultrapure water, potable water and pools |
| Product families | AMI online analysers for conductivity, pH, dissolved oxygen, silica, sodium, phosphate, hydrazine, chlorine and turbidity, steam and water analysis systems (SWAS), sample conditioning panels |
Milestones
- 1991: Swan is founded in Hinwil with about 10 people.
- 1997: Swan Systems is set up to supply steam and water sampling and analysis systems.
Swan Analytical product series
Analyzers on this site include the AMI Codes-II colorimetric chlorine analyzer and the AMI Trides amperometric disinfectant analyzer, the AMI Oxytrace trace dissolved oxygen analyzer, the AMI Powercon specific and acid conductivity analyzer, the AMI Silitrace trace silica analyzer, the AMI Soditrace, Sodium A and Sodium P sodium analyzers, the AMI Hydrazine analyzer for oxygen scavenger dosing, the AMI Turbiwell and Turbitrace turbidity analyzers and the AMI LineTOC total organic carbon analyzer.
Some of these models are marked as discontinued by Swan, which lists a newer AMI-II range separately; the product pages say so where it applies.
Where Swan analyzers are used
Feedwater, condensate and steam monitoring in power and desalination plants, demineralised and ultra-pure water systems, drinking water disinfection and pharmaceutical water.
Swan Analytical products we list
Ordering Swan analyzers: what we need
Send the model, measuring range, AC or DC supply, number of sample streams and options. We confirm the model status and configuration against the Swan operator manual before quoting. Reagents and sensor consumables are ordered separately.
Facts checked against Swan company profiles and industry directories, October 2026.
Browse Swan Analytical products by category: Liquid Analytical Systems.
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Frequently Asked Questions
What is the AMI Turbitrace for?
Continuous measurement of low-level turbidity in pure and ultra-pure water, for example in semiconductor applications.
Which standard does it follow?
The manual states a nephelometer complying with ISO 7027 (EN 27027, DIN 38404).
How precise is it?
+/-0.001 FNU/NTU or 1% of reading, whichever is greater, over 0.000 to 100.0 FNU/NTU.
What is the maximum inlet pressure?
10 bar. The manual says it must never be exceeded, not even briefly, because moisture could enter the electronics housing.
How fast does it respond?
T90 is typically below 15 seconds after the sample enters at 10 l/h.
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