Emerson Rosemount5081, Instruction Manual, Page: 18 / 152

Contacting conductivity Table 2-5:
Measured range 0-20,000 µS/cm
Calibration Calibration is easily accomplished by immersing the sensor in
a known solution and entering its value or entering the cell
constant for ultra-pure applications.
Automatic temperature compensation 3-wire Pt 100 or Pt 1000 RTd
Conductivity: 32 to 392 °F (0 to 200 °C)
Resistivity: 32 to 212 °F (0 to 100 °C)
Low conductivity: 32 to 212 °F (0 to 100 °C)
Accuracy ± 0.5% of reading and ±0.001 µS/cm
Repeatability ± 0.25% of reading
Stability 0.25% of output range/month, non-cumulative
Ambient temperature coefficient ± 0.05% of reading/°C
Temperature slope adjustment 0-5%/°C
Other temperature compensation algorithms Ultra-pure water compensation
Cation conductivity
Raw (uncompensated) conductivity
Compatible RTD 100 Ohm or 1000 Ohm with automatic recognition
Toroidal conductivity Table 2-6:
Measured range 50 to 2,000,000 µS/cm
Calibration Calibration is easily accomplished by immersing the sensor in a
known solution and entering its value.
Automatic temperature compensation 3-wire Pt 100 RTD
Conductivity: 32 to 392 °F (0 to 200 °C)
% concentration: 32 to 212 °F (0 to 100 °C)
Accuracy ± 1.0% of reading
Repeatability ± 0.25% of reading
Stability 0.25% of output range/month, non-cumulative
Ambient temperature coefficient ± 0.2% of FS/°C
Temperature slope adjustment 0 - 5% / °C
% concentration ranges Sodium hydroxide: 0 to 15%
Hydrochloric acid: 0 to 16%
Sulfuric acid: 0 to 25% and 96 to 99.7%
Dissolved oxygen Table 2-7:
Measurement range 0 - 99 ppm (mg/L), 0 - 200 saturation
Resolution 0.01 ppm, 0.1 ppb for 499ATrDO sensor
Temperature correction for membrane permeability Automatic between 0 and 50 °C (can be disabled)
Description and specifications
8 Rosemount 5081