CS547A-L Water Conductivity and Temperature Probe
CS547A-L Water Conductivity and Temperature Probe

CS547A-L Water Conductivity and Temperature Probe

The CS547A probe monitors the electrical conductivity (EC) and temperature of water. EC is measured with three cylindrical stainless-steel electrodes mounted in an epoxy housing. The electrode configuration eliminates ground loop problems associated with sensors in electrical contact with earth ground. The electrodes are ac coupled, and a bipolar excitation is applied. This reduces electrochemical reactions, minimizes corrosion, and extends the probe’s life. Temperature is sensed with a thermistor.
Environment | Meteorological Station & Sensors | Campbell Scientific
  • The CS547A probe monitors the electrical conductivity (EC) and temperature of water.
  • EC is measured with three cylindrical stainless-steel electrodes mounted in an epoxy housing.
  • The electrode configuration eliminates ground loop problems associated with sensors in electrical contact with earth ground.
  • The electrodes are ac coupled, and a bipolar excitation is applied.
  • This reduces electrochemical reactions, minimizes corrosion, and extends the probe’s life.
  • Temperature is sensed with a thermistor.
  • Compatible with most Campbell Scientific data loggers
  • Easy to clean
  • Corrosion resistant
  • Rounded ends facilitate installation and removal
  • Compatible with AM16/32-series multiplexers allowing measurement of multiple sensors
  • Weighted option available for stand-alone submersion
Conductivity Measurement Range ~0.005 to 7 mS/cm
Temperature Measurement Range 0° to 50°C
Conductivity Accuracy
  • The EC accuracy is in a KCl and Na2SO4, NaHCO3, and NaCl Standard Solutions @ 25°C.
  • ±5% of reading (for 0.44 to 7.0 mS cm-1 range)
Temperature Polynomial Linearization Error Typically < 0.1°C (over 0° to 48°C)
Thermistor Interchangeability Typically < 0.2°C (over 0° to 50°C)
Operating Temperature Range 0° to 50°C