Hanna Instruments HI 99181 User Manual

Instruction Manual

HI 99181

Portable Waterproof

Skin pH Meter

www.hannainst.com

WARRANTY

All Hanna Instruments
against defects in workmanship and materials when used for
their intended purpose 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 purchase, serial number and the nature of the
problem. 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 Number 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.

meters are warranted for two years

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 [e-mail].

PRELIMINARY EXAMINATION

Remove the instrument from the packing material and examine
it carefully to make sure that no damage has occurred during
shipment. If noticeable damage is evident, notify your dealer.

Note: Save all packing material until you are sure that the

instrument functions correctly. All defective items must be
returned in the original packing together with the
supplied accessories.

GENERAL DESCRIPTION

HI 99181

temperature meter with a special flat surface probe.
The HI 1414D/50 probe has been specially designed with a flat
tip for skin pH measurement.
Moreover, a built-in temperature sensor allows simultaneous

temperature compensated pH and temperature readings and
an integral pH sensor preamplifier provide measurements
impervious to noise and electrical interferences.

The meter is supplied with:

• HI 1414D/50 pH/temperature probe with flat tip,

• HI 700621 Cleaning solution for skin grease and sebum,

• Calibration and cleaning solution sachets

• 3 x 1.5V AAA batteries

• Instruction manual.

is a portable, microprocessor-based pH and

50 mm-long body, DIN connector and 1m (3.3’) cable

20 mL sachet (2 pcs.)

LCD DESCRIPTION

1. Automatic Temperature Compensation indicator

2. Battery percentage (visible at power up)

3. Secondary display

4. Low battery indicator

5. Stability indicator

6. pH calibration indicator

7. Selectable temperature unit

8. Primary display

9. Measuring unit for primary display

SPECIFICATIONS

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; ±1.0°C outside

±1.0°F up to 140°F; ±2.0°F outside

Typical EMC ±0.02 pH
Deviation ±0.2°C or ±0.4°F

Temperature Compensation Automatic
pH Calibration Automatic, 1 or 2 point

choose between 2 sets of buffers

(standard: 4.01/7.01/10.01 or NIST: 4.01/6.86/9.18)

Probe (included) HI 1414D/50

preamplified pH/temperature probe

Battery Type 3 x 1.5V AAA
Battery Life Approximately 1200 hours of continuous use

Auto-off After 8 minutes of non-use
Environment 0 to 50°C (32 to 122°F); RH max. 100%
Dimensions 152 x 58 x 30 mm (6.0 x 2.3 x 1.2”)
Weight 205 g (7.2 oz.)

ACCESSORIES

HI 1414D/50 Preamplified pH probe with flat-tip 50 mm-long

body, built-in temperature sensor, DIN connector
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 pH electrode Storage solution, 230 mL bottle
HI 70300L pH electrode Storage solution, 500 mL bottle
HI 7061M pH electrode General purpose cleaning solution,

230 mL bottle

HI 7061L pH electrode Cleaning solution, 500 mL bottle
HI 700620P Cleaning & disinfection solution for removal of

skin residuals, 20 mL sachet (25 pcs.)

HI 70620M Cleaning & disinfection solution for removal of

skin residuals, 230 mL bottle

HI 70620L Cleaning & disinfection solution for removal of

skin residuals, 500 mL bottle

HI 700621P Cleaning solution for removal of skin grease and

sebum, 20 mL sachet (25 pcs.)

HI 70621M Cleaning solution for removal of skin grease and

sebum, 230 mL bottle

HI 70621L Cleaning solution for removal of skin grease and

sebum, 500 mL bottle

HI 70960 Electrolyte solution for sample preparation,

30 mL bottle

HI 76405 Electrode holder

Hanna Instruments reserves the right to modify the design,
construction and appearance of its products without advance
notice.

IST99181Z 01/11

- +

OPERATIONAL GUIDE pH MEASUREMENT & CALIBRATION METER SETUP

First time you use the instrument open the battery compartment
and put the batteries inside observing the polarity.

To connect the probe

With the meter turned off, connect the HI 1414D/50 probe to the
DIN socket on the bottom of the meter 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

Press the ON/OFF/MODE button until the display lights up. At
start-up, all the LCD segments are displayed for 1 second, then
the percent indication of the remaining battery life is displayed for
another second (E.g. “100 % BATT“). The meter then enters the
normal measuring mode.

Note: If the display needs to be checked, keep the 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.

The meter is provided with an acoustic signal active when a key is
pressed.

Notes: • When the meter detects the absence of a temperature

probe at its input, the message “Probe not connected“
appears on LCD and the Automatic Temperature
Compensation is turned off along with the “ATC“ tag.
In this condition, the secondary LCD displays “25.0°C
“ (“77°F“) blinking. When the probe is reconnected,
the “Probe not connected“ tag is turned off, the
temperature is displayed on the secondary display
and the “ATC“ tag is turned on.

• To clean the meter, do not use aggressive detergents.
It is recommended to use water.

• Make sure the meter has been calibrated before use.

• If the probe is dry, soak it in HI 70300 storage solution for

30 minutes to reactivate it.

• For better result, before taking any measurement, wet the skin

portion to be tested with distilled water or HI 70960 electrolyte
solution.

• Place the flat tip of the probe that is wetted with the electrolyte
solution on the sample to be tested and wait until the “Not
Stable“ tag on the LCD is turned off.

• The LCD displays the pH value (automatically compensated for
temperature) on the primary LCD, while the secondary LCD
displays the temperature of the sample.

• After each measurement, it is recommended to clean the probe
tip with HI 70620 and HI 70621 Cleaning & disinfecting
solutions, to eliminate coatings and avoid cross-contamination.

• When not in use, switch the meter OFF and clean the probe
with HI 70620 and HI 70621 Cleaning & disinfecting

solutions before storing it.

pH calibration

For better accuracy, frequent calibration of the pH sensor with
the meter is recommended. In addition, the meter must be
recalibrated:

a) Before each set of skin measurements.
b) Whenever the pH electrode is replaced or stored for long

periods.

c) Where high accuracy is required.

• From normal mode, press and hold the ON/OFF/MODE button
until “OFF“ on the secondary display is replaced by “CAL“.
Release the button. Place the sensor into the first calibration buffer.

• The meter enters the calibration mode, displaying “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 recognition
feature. If a valid buffer is detected, then its value is displayed
on the primary display, and “REC“ appears on the secondary
LCD. If no valid buffer is detected, the meter keeps the “USE“
indication active for 12 seconds, and then replaces it with
“---WRONG“, indicating that the sample being measured is not
a valid buffer.

• For a

single-point calibration

10.01, the meter automatically accepts the calibration when
the reading is stable; the meter will show on the primary display
the accepted buffer, with the message “OK 1” on the secondary
display, and an audible signal is produced.
If a single-point calibration with buffers pH 7.01 or 6.86 is
desired, then after recognition of the buffer press any key to
return to the pH measurement mode.

Note: It is always recommended to carry out a two-point calibration

for better accuracy.

• For a

two-point calibration

6.86) buffer first. After the calibration point has been accepted,
the “pH 4.01 USE” message appears. Place the sensor into the
second calibration buffer. The message is held for 12 seconds,
unless a valid buffer is recognized. If no valid buffer is recognized,
then the “---WRONG“ message is displayed. 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 displays the accepted value with the “OK 2”
message on the secondary display. The meter then returns to
the normal measuring mode.

Note: When the calibration procedure is completed, the “Calibrated“

tag is turned on.

with buffers pH 4.01, 9.18 or

, place the probe in pH 7.01 (or pH

To exit calibration and reset default 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 second and the meter
returns to normal mode.

• To reset to the default values and clear a previous 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 second, the meter
resets to the default calibration and the “Calibrated” tag on
the LCD disappears.

Setup mode allows the selection of the temperature unit and the
type of pH buffer set.
To enter the Setup mode, press and hold the ON/OFF/MODE
button until “CAL“ on the secondary display is replaced by “TEMP“
and the current temperature unit (E.g. “TEMP °C“). Then:

•

for °C/°F selection

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 type of calibration buffer set

temperature unit, the meter will show the current buffer set:
“pH 7.01 BUFF” (for standard buffer set: 4.01/7.01/10.01) or
“pH 6.86 BUFF” (for NIST buffer set: 4.01/6.86/9.18). Change
the set with the SET/HOLD button, then press ON/OFF/MODE
to return to normal mode.

, use the SET/HOLD button. After the

, after setting the

BATTERY REPLACEMENT

The meter is supplied with batteries.
The meter displays the remaining battery percentage when turned

on. When the level is below 5%, the “
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
the batteries as soon as the display will flash the battery symbol.

To replace the batteries, follow the next steps:

• Open the battery compartment cap (on the bottom of the
instrument).

• Remove old batteries.

• Replace new batteries observing the polarity on the rear of
the instrument.

• Close the battery compartment cap.

off. It is recommended to replace

“ symbol on the LCD