Hanna HI99181: Skin pH Portable Meter

specifications Hanna HI99181: Skin pH Portable Meter 

pH Range: -2.00 to 16.00 pH; -2.0 to 16.0 pH

pH Resolution: 0.01 pH; 0.1 pH

pH Accuracy: ±0.02 pH; ±0.1 pH

pH Calibration: automatic, at one or two points with two sets of buffers (standard 4.01, 7.01,10.01 or NIST 4.01, 6.86, 9.18)

pH Temperature Compensation: automatic from -5.0 to 105.0ºC (23 to 221ºF)

pH CAL Check (electrode diagnostics): probe condition indicator

pH Sensor Check: yes

mV Range: ±825 mV (pH‐mV)

mV Resolution: 1 mV (pH‐mV)

mV Accuracy: ±1 mV (pH‐mV)

Temperature Range: -5.0 to 105.0°C / 23.0 to 221.0°F

Temperature Resolution: 0.1°C / 0.1°F

Temperature Accuracy: ±0.5°C (up to 60°C); ±1.0°C (outside) / ±1°F (up to 140°F); ±2.0°F (outside)

pH Electrode: HI14143/50 pre-amplified pH probe with internal temperature sensor, quick connect DIN connector and 1 m (3.3’) cable (included)

Automatic Shut-Off: user selectable: after 8 min, 60 min or disabled

Battery Type/Life: 1.5V (3) AAA / approximately 1400 hours of continuous use

IP Protection: IP67

Environment: 0 to 50°C (32 to 122°F); RH max 100%

Dimensions: 154 x 63 x 30 mm (6.1 x 2.5 x 1.2”)

Weight: 196 g (6.91 oz.)

Ordering Information: HI99181 is supplied with HI14143/50 flat tipped pH/temperature probe, HI70004 pH 4.01 buffer solution sachet (1) , HI70007 pH 7.01 buffer solution sachet (1), HI700620 electrode cleaning and disinfection solution for skin residual sachets (1), HI700621 electrode cleaning solution for skin grease and sebum sachets (1), 100 mL beaker (1), batteries, calibration certificates for both meter and probe, instruction manual, and rugged thermoformed carrying case.

Introduction Hanna HI99181

– Automatic Temperature Compensation
– Automatic Two-Point Calibration
– Waterproof

Features

Waterproof – The HI99181 is a waterproof meter rated IP67 for immersion in up to one meter of water for 30 minutes.

Automatic Calibration – One or two-point calibration is automatic to two selectable buffer sets.

Automatic Temperature Compensation – An integrated temperature sensor allows for automatic temperature compensation of pH measurements.

Sensor Check – Using the pH‐mV range the user can check the sensor status by reading the mV reading in fresh buffers. At room temperature (25 ^oC/77^oF) the reading should be +/- 30 mV in pH 7.01 and greater than 150 mV difference between pH 7.01 and 4.01.

Multi-Level LCD Display – The split-level LCD displays both pH and temperature readings, along with indicators for reading stability, battery percentage, and probe condition.

Probe Condition Indicator – The probe condition indicator is based on the offset and slope characteristics of the electrode. There are 5 bars ranging from all 5 indicating the probe is in excellent condition and 1 bar indicating the probe should be cleaned or replaced.

Battery Error Prevention System – The meter will automatically shut off if there isn’t enough power to obtain an accurate measurement.

Battery Life Indicator – The battery percent level is displayed at startup alerting the user to the remaining battery power that is available.