defr Glossar

System for measuring a number of different samples with a single photometer.

If a given installation has a number of samples with similar properties requiring measurement, switching between samples can provide an economical solution. Each sample is drawn continuously, and then passed through a three-way control valve that either discards it or sends it to the photometer. An electronic control system opens the photometer inlet cyclically in accordance with a programmed sequence. The instrument stores the individual readings and provides outputs (0/4..20 mA) set permanently for each of the sample flows.

Multiple sampling with sampling (1), valves (2) and photometer (3)
Fig. 28: Multiple sampling with sampling (1), valves (2) and photometer (3)

The continuous circulation of samples ensures an immediate supply of new sample substance to the photometer upon switching, and also prevents solids from building up in the sample taking lines.


Contact distribution partner

{{selectedCountry.Name}} {{country.Name}}

Please select your businessarea


Please select


Please select your businessarea

{{selectedCountry.Name}} {{country.Name}}
{{vm.getBusinessAreaStringByVendor(vendor)}} {{area.Name}}
René Gehri
Water, Beverages & Food, Industrial Processes
Vincenzo Pedranz

Contact headquarters

Felix Joller
Sales Manager ScrubberGuard
Montag–Freitag 08:00–12:00 und 13:30–17:00
Feiertage & Betriebsferien:
Ostern: 07.–10. April 2023, Auffahrt: 18. Mai 2023, Pfingstmontag: 29. Mai 2023, Fronleichnam: 08. Juni 2023, Bundesfeiertag: 01. August 2023, Maria Himmelfahrt: 15. August 2023, Allerheiligen: 01. November 2023, Maria Empfängnis: 08. Dezember 2023, Betriebsferien: 23. Dezember 2023 – 02. Januar 2024
Opening hours:
Monday–Friday 08:00am–12:00pm und 1:30pm–5:00pm
Public & company holidays:
Easter: 07.–10. April 2023, Ascension Day: 18. May 2023, Whit Monday: 29. May 2023, Corpus Christi: 08. June 2023, Federal Holiday: 01. August 2023, Assumption Day: 15. August 2023, All Saints Day: 01. November 2023, Conception of Mary: 08. December 2023, Company holidays: 23. December 2023 – 02. January 2024