Combination pH/mV and EC/TDS/NaCl Meter for Laboratories

This combination meter is a high performance precision instrument that measures a multitude of parameters, each over a wide range. With this single laboratory bench meter you can measure pH, ORP, conductivity, TDS, NaCl percentage and temperature.

With the use of an external temperature probe, pH readings are automatically temperature compensated. pH calibrations are customizable, up to 3 reference points, each chosen from the 5 available memorized buffers, to ensure a higher level of precision. EC measurements can be compensated relative to a selected reference temperature of 20 or 25°C. The EC calibration mode allows you to easily chose from among 6 memorized buffers and perform at single-point calibration. The most suitable EC and TDS range for your application is automatically selected.

With the built-in logging function, measurements are stored in non-volatile memory, and can be downloaded to a PC through the serial port. In addition to these features, this instrument contains GLP features that store the calibration and measurement data of any sample, to be displayed upon request.

This instrument is supplied with pH electrode, conductivity probe, temperature probe,  electrode holder, pH 4 and pH 7 buffer solutions, electrolyte solution, 12 Vdc power adapter and instructions.

Specifications

• RangepH/ORP:-2.00 to 16.00 pH; -2.000 to 16.000 pH / ±699.9 mV; ±2000 mV

• RangeEC:0.00 to 29.99 µS/cm; 30.0 to 299.9 µS/cm; 300 to 2999 mS/cm
  3.00 to 29.99 mS/cm; 30.0 to 200.0 mS/cm; up to 500.0 mS/cm actual EC*

• RangeTDS:0.00 to 14.99 ppm; 15.0 to 149.9 ppm; 150 to 1499 ppm;
  1.50 to 14.99 g/L; 15.0 to 100.0 g/L; up to 400.0 g/L actual TDS*

• RangeNaCl:0.0 to 400.0% NaCl

• RangeTemperature:-10 to 120.0°C (pH); 0.0 to 60.0°C (EC)

• ResolutionpH/ORP:0.01 pH; 0.001 pH / 0.1 mV (±699.9 mV); 1 mV (±2000 mV)

• ResolutionEC:0.01 µS/cm; 0.1 µS/cm; 1 µS/cm; 0.01 mS/cm; 0.1 mS/cmResolutionTDS0.01 ppm; 0.1 ppm; 1 ppm; 0.01 g/L; 0.1 g/L

• ResolutionNaCl:0.1% NaCl

• ResolutionTemperature:0.1°C

• AccuracypH/ORP:±0.01 pH; ±0.002 pH / ±0.2 mV (±699.9 mV); ±1 mV (±2000 mV)

• AccuracyEC:±1% of reading ±(0.05 µS/cm or 1 digit)

• AccuracyTDS:±1% of reading ±(0.03 ppm or 1 digit)

• AccuracyNaCl:±1% of reading

• AccuracyTemperature:±0.4°C (excluding probe error)

• Relative mV Offset Range: ±2000 mV

• CalibrationpH:automatic, at 1, 2 or 3 points, with 5 memorized buffers
  (4.01, 6.86, 7.01, 9.18, 10.01)

• CalibrationEC:automatic, 1 point, with 6 memorized values
  (84.0 and 1413 µS/cm; 5.00, 12.88, 80.0 and 111.8 mS/cm)

• CalibrationNaCl:automatic, 1 point, with HI 7037L calibration solutions

• Temperature Compensation: manual or automatic, -10.0 to 120.0°C (14 to 248°F) for pH;
  0.0 to 60.0°C (32 to 140°F) for EC;
  (can be diabled for measuring actual EC and TDS values)

• Temperature Coefficient: 0.00 to 6.00%/°C (EC and TDS only); default value: 1.90%/°C

• TDS Conversion Factor: 0.40 to 0.80; default value: 0.50

• pH Electrode: HI 1131B (included)

• EC Probe: HI 76310 (included)

• Temperature Probe: HI 7662 (included)

• PC Connection: RS232 opto-isolated serial port

• Data Logging: 200 samples

• Input Impedance: 1012 Ohm

• Power Supply: 12 Vdc adapter (included)

• Environment: 0 to 50°C (32 to 122°F); RH max 95%

• Dimensions: 240 x 182 x 74 mm (9.4 x 7.2 x 2.9")

• Weight: 1.1 kg (2.4 lb)

Unit Ship Weight: 5 lbs