Lutron PH-221 PH Meter is a digital portable pH and ORP {mV} meter used to measure water acidity, alkalinty.
Features :
- pH : 0 to 14.00 pH, mV : -+ 1999 mV.
- mV function is used to accept the ORP electrode.
- BNC socket input, can accept most kind pH electrode.
- Separate pH electrode, easy for general purpose and remote measurement.
- pH measurement can select automatic temperature compensation or manual temperature adjustment.
- High input impedance for the pH function.
- Auto calibration for pH 7, pH 4 and pH 10 other value.
- LCD with two display, easy readout.
- Manual and auto data logger, with flexible sampling time selection, can save max 1,600 reading data.
- Can default auto power off or manual power off.
- Temperature unit can default to C to F.
- Microcomputer circuit, intelligent function, high accuracy.
- Records maximum and minimum readings with recall.
- Data hold function for freezing the desired value.
- Build in the input socket for DC 9V power adapter.
- RS232 PC serial interface.
- Heavy duty & compact housing case.
General Specifications :
- pH Electrode : Optional any pH electrode with BNC connector.
- Measurement : pH : 0 to 14 pH. mV : -1999 mV to 1999 mV
- Input Impedance : 10^12 ohm.
- Temperature Compensation for pH measurement :
- Manual : 0 to 100 C, be adjustment by push button on front panel.
- Automatic : with the optional temperature probe 0 to 65C.
- pH Calibration : pH 7, pH 4 and pH 10, 3 points calibration ensure the best linearity and accuracy.
- Circuit : Custom one chip of microprocessor LSI circuit.
- Display : LCD size : 44 x 29 mm, dual function LCD display.
- Data hold : freeze the display reading.
- Sampling Time of data logger :
- Manual : push the data logger button once will save data one time.
- Auto : 1,2,5,10,30,60,600,1800,3600 second.
- Data logger number : max. 1,600 point data logger.
- Memory recall : maximum & minimum value.
- Sampling time of display : Approx. 1 second
- Power off : auto power shut off to save battery life or manual power off.
- Data output : RS 232 PC serial interface.
- Operating Temperature : 0 to 50C
- Operating Humidity : Less than 80% RH.
- Power Supply : 006P DC 9V battery. DC 9V adapter input.
- Power Current : Approx. DC 6 LB
- Dimension : 135 x 60 x 33 mm.