HI 98172

Portable pH/ORP/ISE Meter with Calibration Check™
HI 98172 is a pH/ORP/ISE meter housed in a waterproof casing. Up to five point pH calibration is available with seven memorized pH buffers and five custom pH buffers to provide users with the flexibility necessary to adjust the calibration range to obtain the most accurate and precise readings.

Exchange out the pH sensor for an ORP sensor to obtain mV readings. ISE sensors are calibrated up to five points and measurements are displayed in ppm.

Calibration Check™ incorporates an electrode condition graph which alerts the user with regards to the electrode status. If readings are taken too far outside the calibration range, the unit will warn the user with a graphic signal. Users may set a reminder to notify when calibration is due.

HI 98172 features tutorial messages on the LCD and an auto-end mode to ensure readings are taken only when they are stable. Comprehensive GLP data are directly accessible by pressing the GLP key and log-on-demand holds up to 500 records. Data can be transferred to a PC via USB with optional HI 92000 software and HI 920014 USB connection cable.

Specifications
Range  pH  -4.0 to 20.0 pH; -4.00 to 20.00 pH
mV  ±699.9; ±2000 mV
ISE  0.001 to 19990 ppm
Temperature  -20.0 to 120.0°C (-4.0 to 248.0°F)
Resolution  pH  0.1 pH; 0.01 pH
mV  0.1 mV (±699.9 mV); 1 mV (±2000)
ISE  0.001 ppm (0.001 to 1.999); 0.01 ppm (2.00 to 19.99); 0.1 ppm (20.0 to 199.9); 1 ppm (200 to 1999); 10 ppm (2000 to 19990)
Temperature  0.1°C (0.1°F)
Accuracy
(@20°C/68ºF)  pH  ±0.1 pH; ±0.01 pH
mV  ±0.2 mV (±699.9 mV); ±1 mV (±2000 mV)
ISE  ±0.5% f.s.
Temperature  ±0.2°C (±0.4°F) excluding probe error
pH Calibration  up to five point calibration with seven standard buffers available (1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45), and 5 custom buffers
ISE Calibration  up to five point calibration with six standard buffers available (0.1, 1, 10, 100, 1000, 10000 ppm)
Slope/Offset
Calibration  ±1 pH/from 80 to 110%
Rel. mV Offset Range  ±2000 mV
Temperature Compensation  manual or automatic from –20.0 to 120.0 ºC (–4.0 to 248.0 ºF)
pH Electrode  HI 1230B PEI body pH electrode with BNC connector and 1 m (3.3’) cable (included)
Temperature Probe  HI 7662 stainless steel temperature probe with 1 m (3.3’) cable (included)
Logging  log on demand, 500 samples
PC Connection  opto-isolated USB with optional HI 92000 software
Input Impedance  1012 Ohms
Power supply   1.5V AAA (3) / approximately 200 hours of continuous use without backlight (50 hours with backlight). User selectable auto-off (5, 10, 20, 60 minutes or can be disabled)
Environment  0 to 50°C (32 to 122°F); RH max 100%
Dimensions / Weight  185 x 72 x 36 mm (7.3 x 2.8 x 1.4”) / 300 g (10.6 oz.)

Accessories
Electrodes
HI 1230B  Combination pH Electrode, for Field Applications
BNC Connection
HI 3131B  Refillable Combination ORP Electrode for Titration and Laboratory Use
BNC Connection
Solutions
HI 5004L  pH 4.01 buffer solution
HI 5007L  pH 7.01 buffer solution
HI 5010L  pH 10.01 buffer solution
HI 70300L  Electrode Storage Solution
1 x 500 mL bottle
HI 7061L  General Purpose Cleaning Solution
1 x 500 mL bottle
Accessories
HI 92000  Windows® Compatible Software
Probes
HI 7662  Stainless Steel Temperature Probe