Specifications HI98191 pH* Range -2.0 to 20.0 pH; -2.00 to 20.00 pH; -2.000 to 20.000 pH Resolution 0.1 pH; 0.01 pH; 0.001 pH Accuracy ±0.1 pH; ±0.01 pH; ±0.002 pH Calibration up to five-point calibration, seven standard buffers available (1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45) and five custom buffers Temperature Compensation automatic or manual from -20.0 to 120.0°C (-4.0 to 248.0°F) mV* Range ±2000 mV Resolution 0.1 mV Accuracy ±0.2 mV Relative mV Offset Range ±2000 mV ISE Range from 1.00 E-⁷ to 9.99 E¹⁰ concentration Resolution 3 digits 0.01; 0.1; 1; 10 concentration Accuracy ±0.5% of reading (monovalent ions), ±1% of reading (divalent ions) Calibration up to five point calibration, six standard solutions available (0.1, 1, 10, 100, 1000, 10000 ppm) Temperature* Range -20.0 to 120.0 °C (-4.0 to 248.0°F) Resolution 0.1°C (0.1°F) Accuracy ±0.4°C (±0.8°F) (excluding probe error) Additional Specifications pH Probe HI72911B titanium body, pH electrode with internal temperature sensor, BNC connector and 1 m (3.3’ cable) Slope Calibration from 80 to 110% Log-on-demand 300 samples (100 each pH/mV/ISE range) PC Connection opto-isolated USB with HI92000 software and micro USB cable Input Impedance 10¹² Ω Battery Type / Life 1.5V AA batteries (4) / approximately 200 hours of continuous use without backlight (50 hours with backlight) Auto-off user selectable: 5, 10, 30, 60 min, disabled Environment 0 to 50°C (32 to 122°F); RH 100% IP67 Dimensions / Weight 185 x 93 x 35.2 mm (7.3 x 3.6 x 1.4”) / 400 g (14.2 oz.) Ordering Information HI98191 is supplied with HI72911B pH electrode, HI7004M pH 4.01 buffer solution (230 mL), HI7007M pH 7.01 buffer solution (230 mL), electrode cleaning solution sachet (2), 100 mL plastic beaker (2), HI92000 PC software, HI920015 micro USB cable, 1.5V AA batteries (4), quick start guide, quality certificate and instruction manual in an HI720191 rugged carrying case with custom insert. HI98191-03 includes the above without electrode. Calibrate right in the case with custom beaker holders HI72911B pH Electrode • Titanium body · Titanium construction provides an unbreakable structure and allows the transfer of heat to the internal temperature sensor for rapid temperature compensation • Maintenance free, gel-filled electrode · No fill solution required pH and ORP electrodes begin on page 2.138; pH and ORP solutions begin on page 2.158; ISE electrodes and solutions begin on page 3.26 * Will be reduced to actual sensor limits Next Level Ruggedness • Optional shockproof silicon rubber boot · Specially designed to protect your instrument from damage or impact HI710034 Orange 3 ISE 3.23 www.hannainst.com | portable
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