The HI98190 is a rugged, portable pH meter with the performance and features of a benchtop meter. This professional, waterproof meter complies with IP67 standards and measures pH, ORP and temperature. The HI98190 is supplied with all necessary accessories to perform a pH/temperature measurement packaged into a durable carrying case.
For the measurement of pH, the HI98190 comes with an HI12963 titanium body amplified pH electrode with a built-in temperature sensor for automatic temperature compensated readings. The titanium probe body is chemically resistant to aggressive chemicals and is virtually unbreakable. The HI12963 pH/temperature electrode features a newly designed Quick Connect DIN connector that provides a simple waterproof connection without any threads.
Hanna's unique CAL Check feature alerts the user to potential problems during the calibration process. By comparing previous calibration data to the current calibration, the meter will alert the user with display prompts when the probe needs to be cleaned or is broken, and if the pH buffer might be contaminated. After calibration, the overall probe condition is displayed as a percentage from 0 to 100% in increments of 10%. The probe condition is affected by both the offset and slope characteristics of the pH electrode and is displayed on the measurement screen on the day of calibration and in the GLP data. Calibration can be performed up to five points with seven preprogrammed standard pH buffers and five custom ones to achieve a pH accuracy of ±0.002 with ±0.001 pH resolution.
Pressing the "AutoHold" virtual key seen in measurement mode, the meter will freeze a stable reading, allowing for the reading to be documented or logged. An "out of calibration range" warning can be enabled that will alert the user when a reading is not within the bracket of calibrated pH values.
The log-on-demand mode allows the user to record and save up to 200 samples (100 for pH and 100 for mV). This data, along with the associated GLP data, can then be transferred to a PC with Hanna's HI920015 micro USB cable and HI92000 software. The high contrast graphic LCD is easy to read outdoors in bright sunlight as well as in low-lit areas with the use of the backlight. A combination of dedicated and virtual keys allows easy, intuitive operation in a choice of languages. The compact, durable carrying case is thermoformed to hold all necessary components for taking a field measurement, including the meter and electrode, beakers, buffer solutions, cleaning solutions, and storage solutions.
pH Range: -2.0 to 20.0 pH; -2.00 to 20.00 pH; -2.000 to 20.000 pH
pH Resolution: 0.1 pH; 0.01 pH; 0.001 pH
pH Accuracy: ±0.1; ±0.002 pH
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) + five custom buffers
mV Range: ±2000 mV
mV Resolution: 0.1 mV
mV Accuracy: ±0.2 mV
Temperature Range: -20.0 to 120.0°C (-4.0 to 248.0°F)
Temperature Resolution: 0.1°C (0.1°F)
Temperature Accuracy: ±0.4°C (±0.8°F) (excluding probe error)
Temperature Compensation: manual or automatic from -20.0 to 120.0°C (-4.0 to 248.0°F)
Slope Calibration: from 80 to 110%
Electrode/Probe: HI12963 Titanium body, pH electrode with internal temperature sensor, quick DIN connector and 1 m (3.3' cable)
Log-on-demand: 200 samples (100 pH and 100 mV range)
PC Connectivity: opto-isolated USB with optional HI 92000 software and micro USB cable
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 or can be disabled
Ordering Information HI98190 is supplied with HI12963 titanium body pH electrode, HI7004M pH 4.01 buffer solution (230 mL), HI7007M pH 7.01 buffer solution (230 mL), HI700601 electrode cleaning solution sachet (2 x 20 mL), 100 mL plastic beaker (2), 1.5V AA batteries (4), HI92000 PC software, HI920015 micro USB cable, instruction manual, quick start guide, instrument quality certificate, and HI720190 hard carrying case.
The following link provides additional information from the instruction manual or original manufacturer's brochure. Right-click to open the PDF in a new window or download it: Hanna Instruments HI 98190 Digital, Portable pH-ORP Meter