Hanna Instruments HI 99151 Quick Reference Manual

Ph/temperature meter for the beer industry

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HI 99151

pH/temperature Meter for the Beer Industry

Quick Reference Guide

MEASUREMENTS

• Range:

-2.00 to 16.00 pH

-5.0 to 105.0 °C / 23.0 to 221.0 °F

• Accuracy:

±0.02 pH

(@25 °C/77 °F)

±0.5 °C up to 60 °C; ±1.0 °C outside

±1.0 °F up to 140 °F; ±2.0 °F outside

• To switch ON and OFF: press ON/OFF/MODE.

• To freeze the display: press SET/HOLD until "HOLD" appears.

• To take measurements: connect the probe when the meter is off,

remove the protective cap, turn the meter ON, insert the probe tip in the

sample and wait until the "Not Stable" tag is turned off.

• To enter the pH Calibration mode: press ON/OFF/MODE until "CAL"

appears. Release the button and "pH 7.01 USE" (or "pH 6.86 USE")

message is displayed.

• To select °C or °F unit: press ON/OFF/MODE until "TEMP" appears,

then select the temperature unit with SET/HOLD. Press ON/OFF/MODE

twice to return to normal mode.

• To change the calibration buffer set: press ON/OFF/MODE until

"TEMP" appears. Press again ON/OFF/MODE: the message "pH 7.01

BUFF" (or "pH 6.86 BUFF") appears. Change the buffer set with SET/

HOLD. Press ON/OFF/MODE to return to normal mode.

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Table of Contents

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Page 1 HI 99151 pH/temperature Meter for the Beer Industry Quick Reference Guide MEASUREMENTS • Range: -2.00 to 16.00 pH -5.0 to 105.0 °C / 23.0 to 221.0 °F • Accuracy: ±0.02 pH (@25 °C/77 °F) ±0.5 °C up to 60 °C; ±1.0 °C outside ±1.0 °F up to 140 °F;...
Page 2 pH CALIBRATION PROCEDURE Calibration messages: • USE : default suggested buffer. • REC : a valid buffer is recognized. • WRNG : invalid buffer detected. Two-point procedure: • Place the probe in pH 7.01 (or 6.86) buffer. • After the first point is accepted, the “pH 4.01 USE” message appears. •...