CD-4322 Lutron Conductivity Meter is a professional, microprocessor based digital instrument designed to measure water conductivity and temperature with high precision.
Features :
- 3 Measurement range, 2,000 uS, 20 mS, 100 mS, 100 mS with auto range.
- Separate probe, easy for operation of different measurement enviroment.
- Automatic temperature compensation range : 0 to 50% per C
- Carbon rod electrode for long life.
- Innovative feature with build in automatic temperature compensation factor adjustable between 0 to 5.0% per C.
- Selecting 0% per C of temp coefficient Adjust, allows you to take uncompensated conductivity readings.
- Microprocessor circuit assures high accuracy and provides special functions and features.
- Multi display, show conductivity and temp value at the same time.
- Data hold function for freezing the desired value.
- Records max and min value with recall.
- Build in temperature C , F measurement with default.
- Manual and auto data logger, with flexible sampling time selection, can save max 1,600 reading data.
- Power function can default to auto off or manual off.
- Build in the input socket for DC 9V power adapter.
- Use the durable, long lasting components, including a heavy duty & compact ABS plastic housing case.
- RS232/USB PC serial interface.

Specifications :
- Circuit : Custom one chip of microprocessor LSI circuit.
- Function : Conductivity TDS
- Ranges and Resolution :
- conductivity range : 2000 uS/ 20.00 mS/ 100 mS.
- conductivity resolution : 1 uS/ 0.01 mS/ 100 mS.
- TDS range : 1200 ppm/ 12,000 ppm/ 66,000 ppm.
- TDS resolution : 1 ppm/ 10 ppm/ 100 ppm.
- Accuracy : -+ { 2% FS + 1 d } * FS : full scale.
- Temperature Compensation : Automatic from 0 to 50 C { 32 – 122 F }, with temperature compensation factor variable between 0 to 5.0% per C.
- Conductivity Probe Structure : Carbon rod electrode for long life.
- Memory Recall : Records maximum, minimum readings with recall.
- Power off : Auto power off saves battery life or manual off by push button.
- Data output : RS 232 PC serial interface.
- Sampling time of data logger :
- Manual : push the data logger button once with save data one time.
- Auto : 1, 2, 5, 10, 30, 60, 600, 1800, 3600 seconds.
- Data logger number : max 1,600 point data logger
- Data hold : freeze the display reading.
- Sampling time of display : approx. 1 second.
- Data Output : RS 232 PC serial interface.
- Operating Temperature : 0 to 50C.
- Operating Humidity : Less than 80% RH
- Power Supply : 006P DC 9V battery { alkaline or heavy duty type } or DC 9V adapter input.
- Power Current : Approx. DC 5.7 mA.
- Weight : 295 g / 0.65 LB.
- Dimension :
- main instrument : 135 x 60 x 33 mm.
- Conductivity probe : round 22 mm Dia. x 120 mm lenght.