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Burkert Fluid Control Systems

Type 8202 - pH or O.R.P. Transmitter

8205

The Bürkert transmitter Type 8202 is a compact, but modular device, specially designed for measuring the pH or O.R.P. value of fluids.

The transmitter consists of a replaceable standard 120 mm pH or O.R.P. probe, screwed in a sensor holder with integrated Pt1000 temperature sensor. This ensemble is plugged-in and screwed with a nut to an IP67 enclosure containing the electronic module with cover and a removable display. The pH/ORP transmitter can operate independant of the display, but it will be required for programming the transmitter (i.e. selection of pH or O.R.P. sensor type, measuring range, engineering units...) and also for visualizing continuously the measured and processed data.

The Type 8202 is available with three fully programmable outputs (single transmitter version): two transistor and one 2-wire 4-20 mA current outputs
or with four fully programmable outputs (dual transmitter version): two transistor and two 3-wire 4-20 mA current outputs. The 8202 converts the measured signal, displays different values in different units (if display mounted) and computes the output signals, which are provided via one or two M12 fixed connectors.

  • Programmable outputs: two transistor and single or dual analog 4-20 mA (Process + Temp)
  • Removable backlit display
  • Universal fluidic process connection
  • Compatible with a 120 mm pH/ O.R.P. probe
  • Diagnostic function
Datasheet
Technical data (Pipe + transmitter)
Pipe diameter DN 10 to 110
pH measurement
  Measuring range
  Resolution
  Accuracy

-2...16 pH or -580... +580 mV
0.01 pH or 0.1 mV
±0.02 pH or 0.5 mV
Minimal pH scale 0.5 pH or 30 mV
(i.e 6.7 to 7.2 pH or -20 to +10 mV corresponding to 4-20 mA)
O.R.P. measurement
  Measuring range
  Resolution
  Accuracy

-2000 ...+2000 mV
1 mV
±3 mV
Minimal O.R.P. scale 50 mV (i.e 1550 to 1600 mV corresponding to 4-20 mA)
Temperature measurement
  Measuring range
  Resolution
  Accuracy

-40 to +130°C (-40 to 266 °F)
0.1°C (0.18 °F)
± 1°C (1.8°F)
Temperature compensation automatic (integrated Pt1000) - reference temperature 25°C (77°F)
Minimal temperature scale 10 °C / 18°F) (i.e 10 to 20 °C (50 to 68°F) corresponding to 4-20 mA)
Medium temperature max. * Fitting or nut in: PVC: 50°C (122°F), - PP: 80°C (176°F) - PVDF: 100°C (212°F)
Fluid pressure max PN16 / 232.16 PSI (see pressure / temperature chart - depends on selected probe)
* If the specific max. medium temperature for the used probe is lower than the max. temperature given in the above technical data chart, please take the lowest temperature as max.
 
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