The process photometer Testomat 2000® PO4 is a robust wet-chemical online monitor for monitoring the phosphate content from 0 to 10 mg/l (ppm) using the photometric analysis principle.


  • Process water monitoring
  • Production water purification
  • Wastewater treatment (wastewater treatment plants, biogas plants)
  • Online environmental analyses


Measuring range

0 – 7 mg/l (resolution 0,1)
7 – 10 mg/l (resolution 0,25)
Limit of detection: 0,1 mg/l or 0,25 mg/l depending on range
Accuracy: < 10% at end of measuring range


Technical Data

Power supply: 230–240 VAC, 115 VAC, 24 VAC all 50–60Hz
Power consumption: max. 30 VA
Protection class: I
Degree of protection: IP 65
Ambient temperature: 10–45 °C, 50 – 113°F
Option: booster pump see accessories
Dimensions (B x H x T): 380 x 480 x 280 mm
Weight: approx. 9.5 kg
Menu languages: German, English


Mains water supply

Operating pressure:
1 to 8 bar (15 to 116 psi) or
0,3 to 1 bar (5 to 15 psi), after removing of the valve body out of the regulator/filter housing
Water inlet: Opaque hose with 6 mm external diameter/4 mm internal diameter
Water outlet: Hose with 6 mm external diameter/4 mm internal diameter
Water temperature: 5 to 30 °C; 41 to 86°F

Here you will find available reagents for the Testomat 2000® PO4.
Select accessories in the product search to find e.g. pumps, filters and service sets for the Testomat 2000® PO4.