Filter photometersCompact photometer PF‑12Plus


The photometer PF‑12Plus is a device tailored for mobile water analysis. Equipped with more than 100 pre-programmed methods, it is the ideal companion for all fields of water and wastewater analysis. With its especially positioned 860 nm LED the PF‑12Plus enables nephelometric turbidity measurements (NTU) in the range of 1–1000 NTU. The unique NTU-Check controls turbidity in parallel to every measurement. NANOCOLOR tube tests and VISOCOLOR ECO tests can be evaluated with the PF‑12Plus.


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Type Filter photometer with microprocessor control, self-test and auto-calibration
Light source Xenon lamp
Optical system Automatic filter wheel with 7 interference filters
Wavelength 345 nm / 436 nm / 470 nm / 540 nm / 585 nm / 620 nm / 690 nm plus 1 compartment for an additional filter; 860 nm LED for NTU measurement
Wavelength accuracy ± 2 nm, bandwidth at half transmission 10 nm–12 nm
Photometric range ± 3 E
Photometric accuracy ± 1 %
Long term stability < 0.002 A/h
Measuring modes More than 100 preprogrammed tests and special methods, absorbance, transmission, factor, standard, nephelometric turbidity measurement; 50 freely programmable methods
Preprogrammed tests NANOCOLOR tube tests, VISOCOLOR ECO tests and Powder Pillows
Turbidity measurement Nephelometric turbidity measurement at 860 nm (based on ISO 7027), 1–1000 NTU
Cuvette slot Round tubes 16 mm OD
External light Insensitive to external light, fast measurements without cuvette slot cover
Data memory 1000 results, GLP conform
Display Backlit graphic display, 128 x 64 pixel
Auto off Inactive or automatic shutdown after 5 min, 10 min, 15 min, 20 min, 60 min
Internal quality control With NANOCONTROL NANOCHECK 2.0
Operation Self-explanatory menu guidance, plastic foil keypad, test selection via parameter lists
Language DE / EN / FR / ES / IT / NL / HU / PL / PT / CZ / ID / SL / TR / MY
Interfaces USB 2.0
Update Free via internet / PC
Operating range 10–40 °C, max. 80 % relative humidity (non-condensing)
Power supply Via USB power supply, standard or rechargeable batteries or accu-pack
Housing Shock-resistant; waterproof and dustproof, according to IP 68
Dimensions 215 x 100 x 65 mm
Weight 0.7 kg
Warranty 2 Years
CE certified Yes
Scope of delivery Photometer, software DVD, manual, VISOCOLOR ECO test instructions, 4 batteries, 4 empty test tubes, funnel, beaker, syringe, USB cable, calibration cuvette, cleaning cloth and certificate in rugged case
Hazardous material No
PF-12Plus – Compact photometer for mobile water analysis

The photometer PF‑12Plus is a device tailored for the mobile water analysis. The iconbased menu guidance and clear taskbar make the PF‑12Plus an easy to use photometer for all fields of water and wastewater analysis without the need for extensive training. The device comes in a rugged case equipped with useful accessories and is therefore particularly popular with users for the direct analysis at the point of sampling.

compact photometer

  • Easy handling for precise results
  • GLP‑conform storage of all measurement results
  • Comfortable data export and data backup concept


  • Flexible power supply via batteries or accu-pack
  • Backlit graphic display also for critical lighting conditions
  • Robust and waterproof according to IP 68
  • Compatible with NANOCOLOR and VISOCOLOR test kits
  • Nephelometric turbidity measurement and NTU‑check
  • Applicable in all fields of water and waste water analysis
Easy implementation

Measurement results are obtained very quickly with the PF‑12Plus, thanks to its simple operation. Equipped with more than 100 preprogrammed methods, it is the ideal companion for analysis on the road. The PF‑12Plus comes with easy to understand pictogram instructions in a practical manual for the evaluation of VISOCOLOR ECO test kits.

Free programming

In addition to the preprogrammed methods, the PF‑12Plus offers the possibility to create up to 50 special methods for customized applications. Equations up to 4th degree and logarithmic functions can be programmed systematically.

Turbidity measurements

With its especially positioned 860 nm LED the PF‑12Plus enables nephelometric turbidity measurements (NTU) in the range of 1–1000 NTU. Therefore, disturbing turbidities will be detected reliably in parallel to a measurement of tube tests – a huge PLUS onmeasurement safety. Furthermore, the PF‑12Plus offers the possibility to accurately determine the turbidity in transmitted light from 4–350 FAU.

Photometric determination with the PF-12Plus

turbidity measurementturbidity measurementturbidity measurement

turbidity measurement

Additional information

pH range

0.0–6.0, 0.3–2.3, 0–14 PT, 0–14, 1.7–3.8, 2.0–9.0, 3.1–8.3, 3.6–6.1 PT, 3.6–6.1, 4.0–7.0, 4.5–10.0 PT, 4.5–10.0, 5.1–7.2, 6.0–10.0, 6.0–7.7, 7.0–14.0, 7.5–9.5, 7.9–9.8