Waterproof ph & temperature meter for milk (20 pages)
Summary of Contents for Hanna Instruments HI99181
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HI99181 Waterproof pH & Temperature Meter for Skin & Scalp...
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Dear Thank you for choosing a Hanna Instruments product. Please read this instruction manual carefully before Customer, using this meter. This manual will provide you with the necessary information for correct use of this meter, as well as a precise idea of its versatility.
Notify your nearest Hanna Instruments Customer Service Center if damage is observed. Each HI99181 is delivered in a rugged carrying case and is supplied with: •...
GENERAL DESCRIPTION AND INTENDED USE HI99181 portable pH meter together with a HI14143/50 combination pH electrode, is designed to measure pH on skin and scalp. HI99181 features a two button operation system and is simple to use. It has a waterproof and compact casing, large dual‑line display, and automatic pH calibration at...
MAIN FEATURES • Simultaneous pH and temperature measurements on a large dual‑line LCD display • Automatic pH calibration at one or two points within two memorized buffer sets (standard or NIST) • Selectable temperature unit (°C or °F) • Electrode condition indicator •...
OPERATIONAL GUIDE Each meter is supplied with batteries. Before using the meter for the first time, open the battery compartment and insert batteries, observing the polarity (see “Battery Replacement“). CONNECTING THE ELECTRODE With the meter turned off, connect the HI14143/50 probe to the DIN socket on the bottom of the meter by aligning the pins and pushing in the plug firmly.
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SELECTING MEASUREMENT RANGE While in measurement mode, press the SET button to select pH or pH‑mV measurement on the first LCD line. FREEZING MEASUREMENT VALUES While in measurement mode, press and hold the SET button until “HOLD“ appears on the secondary LCD. The “HOLD“...
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The LCD displays the pH value (automatically compensated for temperature) on the primary LCD, while the secondary LCD displays the sample temperature. If measurements are taken in different samples successively, rinse the probe tip thoroughly in distilled or deionized water to eliminate cross‑contamination.
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Two-point calibration Proceed with steps 1 through 3 under single‑point calibration using 7.01 pH (pH 6.86 for NIST) buffer first. Then follow steps below: The ”pH 4.01 USE” message is then displayed. Place the probe in the second calibration buffer (pH 4.01 or 10.01, or, if using NIST, pH 4.01 or 9.18).
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ELECTRODE CONDITION The display is provided with a probe icon (unless the feature is disabled from setup) which indicates the electrode status after calibration. The “condition” remains active for 12 hours (unless the batteries are removed). The electrode condition is evaluated only if the current calibration has two points.
METER SETUP Setup mode allows the selection of the Temperature unit, Auto‑off, Beep confirmation tone, the type of pH buffer set, the Resolution and Information. To enter Setup mode press and hold button until “STD“ and tag is replaced by “SETUP“ and tag.
BATTERY REPLACEMENT When the remaining battery life is less than 10% the battery tag blinks on the display to warn the user. Battery Error Prevention System (BEPS) If the battery is too weak (“0%”) the display shows “bAtt“, “DEAD“ for a few seconds then the meter powers off. Immediately replace the batteries with new ones.
ELECTRODE MAINTENANCE PREPARATION • Remove the protective cap. Do not be alarmed if any salt deposits are present. Rinse with water. • Shake the electrode down as you would do with a clinical thermometer to eliminate any air bubbles inside the glass tip.
CERTIFICATION All Hanna Instruments conform to the CE European Directives. RoHS compliant Disposal of Electrical & Electronic Equipment. The product should not be treated as household waste. Instead hand it over to the appropriate collection point for the recycling of electrical and electronic equipment which will conserve natural resources.
When shipping any meter, make sure it is properly packed for complete protection. Hanna Instruments reserves the right to modify the design, construction or appearance of its products without advance notice.
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World Headquarters Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA www.hannainst.com MAN99181 Printed in ROMANIA...