Hanna Instruments HI 99181 User manual

Instruction Manual
HI 99181
PortableWaterproof
SkinpHMeter
www.hannainst.com
All Hanna Instruments meters are warranted
for two years against defects in workmanship
and materials when used for their intended pur-
pose and maintained according to instructions.
The probes are warranted for a period of
six months.
This warranty is limited to repair or replacement
free of charge. Damage due to accidents, misuse,
tampering or lack of prescribed maintenance are
not covered.
If service is required, contact the dealer from
whom you purchased the instrument. If under
warranty, report the model number, date of pur-
chase, serial number and the nature of the prob-
lem. If the repair is not covered by the warranty,
you will be notified of the charges incurred. If the
instrument is to be returned to Hanna Instruments,
first obtain a Returned Goods Authorization Num-
ber from the Customer Service department and
then send it with shipment costs prepaid. When
shipping any instrument, make sure it is properly
packaged for complete protection.
All rights are reserved. Reproduction in whole or in
part is prohibited without the written consent of the
copyright owner.
WARRANTY
PRELIMINARY EXAMINATION
Remove the instrument from the packing ma-
terial and examine it carefully to make sure
that no damage has occurred during ship-
ment. If noticeable damage is evident, notify
your dealer.
Note: Save all packing material until you
are sure that the instrument func-
tions correctly. All defective items
must be returned in the original pack-
ing together with the supplied ac-
cessories.
HI 99181 is a portable, microprocessor-
based pH and temperature meter with a spe-
cial probe. The HI 1414D/50 probe has been
specially designed with flat tip for skin pH
measurement.
Moreover, a built-in temperature sensor al-
lows simultaneous pH and temperature
readings and a mini amplifier renders mea-
surements impervious to noise and electri-
cal interferences.
The meter is supplied in a rugged carrying
case, complete with:
•HI 1414D/50 pH/temperature probe with
flat tip, 50 mm-long body, DIN connector
and 1 m (3.3') cable
•HI 70004 pH 4.01 buffer, 20 mL sachet
•HI 70007 pH 7.01 buffer, 20 mL sachet
•HI 700620 cleaning & disinfection solution
for skin residuals, 20 mL sachet (2 pcs.)
• HI 700621 cleaning solution for skin grease
and sebum, 20 mL sachet (2 pcs.)
• batteries and instructions
GENERAL DESCRIPTION
LCD DESCRIPTION
1. Automatic Temperature Compensation
indicator
2. Stability indicator
3. Battery percentage
4. pH calibration indicator
5. Low battery indicator
6. Selectable temperature unit
7. Secondary display
8. Primary display
9. Measuring unit for primary display
IST99181R1 05/05
Range -2.00 to 16.00 pH
-5.0 to 105.0°C / 23.0 to 221.0°F
Resolution 0.01 pH / 0.1°C / 0.1°F
Accuracy ±0.02 pH
(@20°C/68°F) ±0.5°C up to 60°C; ±1°C outside
±1°F up to 140°F; ±2°F outside
TypicalEMC ±0.02 pH
Deviation ±0.2°C / ±0.4°F
Temp.Compensation Automatic
pHCalibration Automatic, 1 or 2 point
with 2 sets of standardized buffers
(4.01/7.01/10.01 or 4.01/6.86/9.18)
Probe (included) HI 1414D/50
amplified pH/temperature probe
Battery Type 3x 1.5VAA/ IEC LR6
Battery Life Approx. 1500 hours
Auto-off After 8 minutes of non-use
Environment 0 to 50°C; RH 100%
Dimensions150x80x36mm (5.9 x3.2x1.4”)
Weight 210 g (7.4 oz.)
HI 1414D/50 Amplified pH probe with flat tip,
50 mm-long body, built-in tem-
perature sensor, DIN connec-
tor and 1 m (3.3') cable.
HI 70004P pH 4.01 buffer solution, 20 mL
sachet (25 pcs.)
HI 7004L pH 4.01 buffer solution, 500 mL
bottle
HI 70006P pH 6.86 buffer solution, 20 mL
sachet (25 pcs.)
HI 7006L pH 6.86 buffer solution, 500 mL
bottle
HI 70007P pH 7.01 buffer solution, 20 mL
sachet (25 pcs.)
HI 7007L pH 7.01 buffer solution, 500 mL
bottle
HI 70300M Storage solution, 230 mL bottle
HI 70300L Storage solution, 500 mL bottle
HI 7061M General purpose cleaning so-
lution, 230 mL bottle
HI 7061L General purpose cleaning so-
lution, 500 mL bottle
HI 700620P Cleaning & disinfection solu-
tion for skin residuals, 20 mL
sachet (25 pcs.)
HI 70620M Cleaning & disinfection solu-
tion for skin residuals, 230 mL
HI 70620L Cleaning & disinfection solu-
tion for skin residuals, 500 mL
HI 700621P Cleaning solution for skin
grease and sebum, 20 mL sa-
chet (25 pcs.)
HI 70621M Cleaning solution for skin
grease and sebum, 230 mL
HI 70621L Cleaning solution for skin
grease and sebum, 500 mL
HI 70960 Electrolyte solution for sample
preparation, 30 mL bottle
HI 710007 Blue shockproof rubber boot
HI 710008 Orangeshockproofrubber boot
HI 721312 Hard carrying case
ACCESSORIES
SPECIFICATIONS
Dear Customer,
Thank you for choosing a Hanna Instruments
Product.
Please read this instruction manual carefully
before using the instrument.
If you need additional technical information,
do not hesitate to e-mail us at
[email protected]
This instrument is in compliance with the
directives.
Hanna Instruments reserves the right to
modify the design, construction and appear-
ance of its products without advance notice.

METER SETUP
BATTERY REPLACEMENT
Setup mode allows the selection of the tempera-
ture unit and of the pH buffer set.
To enter the Setup mode, press and hold the ON/
OFF/MODE button until CAL on the secondary
displayis replaced by TEMP andthe current tem-
perature unit (E.g. TEMP °C). Then:
• for °C/°F selection , use the SET/HOLD button.
After the temperature unit has been selected,
press ON/OFF/MODE to enter the buffer set
selection mode; press ON/OFF/MODE twice
to return to the normal measuring mode.
• to change the calibration buffer set , after set-
ting the temperature unit, the meter will show
thecurrentbuffer set: “pH7.01BUFF”(for4.01/
7.01/10.01) or “pH 6.86 BUFF” (for 4.01/6.86/
9.18). Change the set with the SET/HOLD but-
ton,thenpressON/OFF/MODEtoreturntonor-
mal mode.
To connect the probe
With the meter turned off, connect the HI 1414D/
50 probetotheDIN socket on thetopofthemeter
by aligning the pins and pushing in the plug.
Tighten the nut to ensure a good connection.
Remove the protective cap from the probe before
taking any measurements.
To turn the meter ON and check the battery
status
PresstheON/OFF/MODEbutton until the display
lights up. At start-up, all the LCD segments are
displayed for 1 second, then the percent indica-
tion of the remaining battery life is shown for an-
other second (E.g. % 100 BATT).The meter then
enters the normal measuring mode.
Note:Ifthedisplayneedstobe checked,keepthe
ON button pressed while turning the meter on.
The meter will display all segments as long as
the button is pressed.
To freeze the display
While in measurement mode, press the SET/
HOLD button, HOLD appears on the secondary
display and the reading will be frozen on the LCD
(E.g. pH 5.73 HOLD). Press any button to return
to normal mode.
To turn the meter OFF
While in normal measurement mode, press the
ON/OFF/MODE button. OFF will appear on the
secondary display. Release the button.
Note: The meter is provided with an acoustic sig-
nal feature, which can be disabled using the
switch located in the battery compartment.
Note: When the meter detects the absence of a
temperature probe at its input, the Automatic
Temperature Compensation is turned off, and
the meter uses a default value of 25°C (77°F)
for the temperature measurement and com-
pensation.Inthis condition, thesecondaryLCD
shows 25.0°C (77.0°F) blinking. When a probe
is connected, the meter automatically returns
to theATC mode, the ATC tag is turned on, and
the temperature is shown on the secondary
display.
OPERATIONAL GUIDE
• Make sure the meter has been calibrated be-
fore use.
• If the probe is dry, soak it in HI 70300 storage
solution for one hour to reactivate it.
• For better results, before taking any measure-
ment, wet the skin portion to be tested with
distilled water or HI 70960 electrolyte solution.
• Place the flat tip of the probe on the surface to
be measured.
• Wait until the symbol on the top left of the
LCD is turned off.
• The LCD shows the pH value (automatically
compensated for temperature) on the primary
LCD,while the secondary LCD shows the tem-
perature of the solution.
• After each measurement, it is recommended
to clean the probe tip with HI 70620 and HI
70621 Cleaning & disinfection solutions, to
eliminate dirtiness and avoid cross-contami-
nation.
• When not in use, switch the meter OFF and
clean the probe with HI 70620 and HI 70621
Cleaning&disinfectionsolutionsbeforestor-
ing it.
pH calibration
For better accuracy, frequent calibration of the
instrument is recommended. In addition, the
instrument must be recalibrated whenever:
a) The pH electrode is replaced.
b) After testing aggressive chemicals.
c) Where high accuracy is required.
d) At least once a month.
• From normal mode, press and hold the ON/
OFF/MODEbuttonuntil OFF on the secondary
display is replaced by CAL. Release the but-
ton.
• The LCD enters the calibration mode, display-
ing “pH 7.01 USE” (or “pH 6.86 USE” if the
NIST buffer set was selected). After 1 second
the meter activates the automatic buffer recog-
nition feature. If a valid buffer is detected, then
its value is shown on the primary display, and
pH MEASUREMENT & CALIBRATION
RECappears onthesecondaryLCD.Ifnovalid
buffer is detected, the meter keeps the USE
indication active for 12 seconds, and then re-
placesitwithWRNG, indicating that the sample
being measured is not a valid buffer.
• For a single-point calibration with buffers pH
4.01, 9.18 or 10.01, the meter automatically
accepts the calibration when the reading is
stable; the meter will show on the primary dis-
playtheaccepted buffer,withthemessage“OK
1” on the secondary display, and an audible
signal is produced. After 1 second the meter
automatically returns to the normal measur-
ing mode.
If a single-point calibration with buffers pH 7.01
or6.86isdesired,thenafterthecalibrationpoint
has been accepted the ON/OFF/MODE button
must be pressed in order to return to the nor-
mal measuring mode. After the button is
pressed, the meter shows "7.01" (or "6.86") -
"OK 1", and an audible signal is produced. Af-
ter 1 second, the meter automatically returns
to the normal measuring mode.
Note: It is always recommended to carry out a
two-point calibration for better accuracy.
• For a
two-point calibration , place the probe in
pH 7.01 (or pH 6.86) buffer. After the calibration
point has been accepted, the “pH 4.01 USE”
message appears. The message is held for
12 seconds, unless a valid buffer is recog-
nized. If no valid buffer is recognized, then the
WRNG message is shown. If a valid buffer (pH
4.01, pH 10.01 or pH 9.18) is detected, then
the meter completes the calibration procedure.
When the buffer is accepted, the LCD shows
the accepted value with the “OK 2” message
on the secondary display. The meter then re-
turns to the normal measuring mode.
Note: When the calibration procedure is com-
pleted, the CAL tag is turned on.
To quit calibration and to reset to the de-
fault values
• After entering the calibration mode and before
the first point is accepted, it is possible to quit
the procedure and return to the last calibration
data by pressing the ON/OFF/MODE button.
The secondary LCD displays ESC for 1 sec-
ond and the meter returns to normal mode.
• To reset to the default values and clear a previ-
Note: To clean the meter, do not use aggressive
detergents. It is recommended to use water. ous calibration, press the SET/HOLD button after entering the calibration mode and before
the first point is accepted.
The secondary LCD displays CLR for 1 sec-
ond, the meter resets to the default calibration
and the “CAL” tag on the LCD disappears.
The meter displays the remaining battery
percentage when turned on. When the level
is below 5%, the

symbol on the bottom
left of the LCD blinks to indicate a low battery
condition. If the battery level is low enough to
cause erroneous readings, the Battery Error
Prevention System (BEPS) turns the meter
off.
Unscrew the 4 screws located on the back of
the meter and carefully replace the 3AA bat-
teries located in the battery compartment,
while paying attention to their polarity. Reat-
tach the back making sure that the gasket is
in place and tighten the 4 screws to ensure a
watertight seal.