![background image](http://html2.mh-extra.com/html/hanna-instruments/hi99151/hi99151_quick-reference-manual_4225031001.webp)
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
OPERATIONAL GUIDE
•
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.
w w w . h a n n a i n s t . c o m