Specifications HI981914 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) / approx. 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 HI981914 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. 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 Backlit Graphic LCD Display These meters feature a backlit graphic LCD with on-screen help. The graphic display allows for the use of virtual keys to provide for an intuitive user interface. CAL Check™ Hanna’s CAL Check maintains a history of past calibrations and monitors the pH electrode and buffers during subsequent calibrations for any signs of wide variances due to a dirty or broken electrode or contaminated pH buffers. During calibration, users are alerted to problems should they occur. After calibration, the electrode’s overall condition is displayed as a percentage. Data Logging The log-on-demand feature allows users to store up to 200 samples that can later be transferred to a PC with the HI920015 USB cable and HI92000 software. 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 3 ISE 3.25 www.hannainst.com | portable
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