Hanna Instruments HI981036 Instruction Manual

HI981036

Meat pH Tester

Recommendations for Users

Before us ing this produc t, make sure it is enti rely suitable f or your specif ic application an d for the
environm ent in which it i s used. Any var iation intr oduced by th e user to the s upplied equi pment may
degrade t he meters’ pe rformance. F or yours and th e meter’s safet y do not use or st ore the meter in
hazardous environments.

INSTRUCTION MANUAL

To change the C R2032 Li-ion ba ttery, tur n the batter y cover locat ed on the back of t he meter
counterc lockwise t o unlock. Remov e cover and repl ace the batt ery with + side f acing up.

Note: Batte ries should only be replaced in a sa fe area using the b attery
type spe cified in this instruction ma nual. Old batt eries should be d isposed in
accordance with local regulations.

Battery Replacement

IST981036 06/18

Electrode Storage Solution

Code Description

HI70300L Electrode storage solution, 500 mL bottle
HI70300M Electrode storage solution, 230 mL bottle
HI9072 Electrode storage solution, 13 mL dropper

Electrode Cleaning Solution

Code Description

HI700601P General p urpose cleanin g solution, 20 mL sa chets (25 pcs.)

HI700630P

Meat, greas e and fats acid cl eaning solutio n, 20 mL sachets
(25 pcs .)

pH Buffer S olution

Code Description

HI70004P pH 4.01 buffer solu tion, 20 mL sachet s (25 pcs.)
HI70007P pH 7.01 buffe r solution, 20 mL sa chets (25 pcs.)
HI7 7400P pH 4.01 & 7.01 buffer solut ion, 20 mL sachet s (10 pcs., 5 ea.)

Accessories

Battery Indicator

The meter features a low battery indicator. When
the battery is running low, the tag will blink on
screen. When the battery has been depleted,
“Erb” will appear on screen and the meter will
turn off.

Clear Calibration

Place meter in calibration mode. Press and hold
ON/OFF until “CLr” is displayed. The meter will
now be at default calibration.

“Err” Message

In calibration mode, if the meter displays an
“Err” message when in the correct fresh buffer
solution then the probe should be cleaned.
Place the probe in the HI700630 cleaning
solution for 20 minutes. Rinse with purified water
and place in storage solution for a minimum of
30 minutes before calibrating.

Auto-off

From measurement mode, press and hold the
ON/OFF button. The meter will cycle through
“OFF,” “CAL,” then current auto-off setting.

The default setting is 8 minutes (“d08”). Press
ON/OFF button to change. “d60” is auto-off after
60 minutes, and “d--” disables the auto-off
feature. Press and hold the button to exit the
menu.

Electrode Fill Solution

Code Description

HI9071 Gelled Bridge Electrolyte

Certification

All Hanna Instruments conform to the CE European Directives.
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.

Disposal of waste batteries. This product contains batteries, do not dispose of them
with other household waste. Hand them over to the appropriate collection point for recycling.

Ensuring proper product and battery disposal prevents potential negative consequences for the
environment and human health. For more information, contact your city, your local household waste
disposal service, the place of purchase or go to www.hannainst.com.

RoHS

compliant

All righ ts are reserv ed. Reprodu ction in who le or in part i s prohibite d without th e written con sent of
the copyri ght owner, Hann a Instrumen ts Inc., Woonsocke t, Rhode Island , 02895, USA.

To obtain the hi ghest accurac y for measureme nts it is import ant to follow the se tips:

• Fresh buf fer should be use d for each calibrat ion. Calibration is onl y as good as the
buffe r being use d. The pH buf fer values c hange over ti me once the sa chets are op ened.

• The probe s hould be rinsed wi th purified wat er each time befo re placing in buff er or
sample to b e tested.

• When the me ter is not in use it i s important to a dd several dro ps of storage s olution to
the prote ctive cap to ke ep the probe hydr ated. If stora ge solution is no t available, pH

4.01 or pH 7.01 buffer can be u sed.

• For improv ed accuracy it is r ecommended t o calibrate in tw o buffers .

• It is import ant to calibrate and me asure samples at the s ame temperature as t here
is no temperature compensation. A dramatic change in temperature between buffer
solutio ns and samples to b e tested will gi ve inaccurate re adings.

Refilling the Electrode

• If fouled, r inse the sleeve and s ensor tip with pu rified water. Turn ove r the probe,
remove th e sleeve by caref ully rotating it an d pull straight alon g the axis of the
electr ode. Use care as the pH s tem is
made of glas s. Rinse off any t races of
electrolyte gel.

• Soak the senso r tip in HI700601P
or HI700630P cleaning solution for
20 minutes t hen rinse wi th purifie d water.

• Refill the refe rence well with HI9 071
Gelled Bridge Electrolyte.

• Replace the reference sle eve: insert and
push the sl eeve onto the ele ctrode. Make
sure the bla ck O-ring is fixe d inside the
electr ode body. Any excess o f gel will be
expelle d from the end of t he electro de through the o pen junction .

• Rinse any ex cess gel off wi th purified wate r and gently dry of f
body wit h a soft cloth o r tissue.

• Soak assembled probe in Electrode storage solution for a
minimum of 30 min utes.

• Rinse prob e with purifi ed water.

• Shake the el ectrode down a s you would do with a cl inical
thermom eter to elimina te any air bubbles in side the glass b ulb.

• Calibrate in fresh buffers before using for measurements.

Care and Maintenance

Warranty

The meter is warranted for a period of one year against defects in workmanship and materials when
used for their intended purpose and maintained according to instructions. This warranty is limited to
repair or replacement free of charge. Damage due to accidents, misuse, tampering or lack of prescribed
maintenance is not covered. If service is required, contact your local Hanna Instruments Office. 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 (RGA) number from the
Technical Service department and then send it with shipping costs prepaid. When shipping any instrument,
make sure it is properly packaged for complete protection.

Liquid Cr ystal
Display

ON/OFF
Button

Maximum
Immersio n
Level

Recommended
Immersion
Level

pH Probe

If pH 4.01 buffer
solution is used
as the first point

the value of the
buffer is recognized
and displayed
with the blinking
stability indicator.

If pH 7.01 buffer solution is used as
the first point the buffer is recognized

with the blinking stability indicator.
When the reading is stable, the

stability indicator will disappear
and pH 7.01 will be calibrated.

If pH 7.01 is the only calibration point,

finish one-point procedure at right.

If using pH 4.01 as a second point,

continue two-point procedure at right.

For one-p oint calibrati on using pH 4.01 buff er go to proced ure B

For one or t wo-point calibr ation using pH 7.01 buffe r go to procedure A

A
B

When the
reading is s table,
the stab ility
indicator will
disappe ar.“Sto”
will be disp layed
when the
calibration
is saved.

Meter wil l
exit to
measurement
mode and th e
calibration
tag will be
displayed.

Meter will exit
to measurement
mode and the
calibration
tag will be
displayed.

Two- Point

Use pH 4.01 to
perform a two­point calibration.
The value is
automatically
recognized and
displayed with the
blinking stability
indicator.

When the reading
is stable, the
stability indicator
will disappear.
“Sto” will be
displayed when
the calibration
is saved.

Meter will exit
to measurement
mode and the
calibration
tags will be
displayed.

Thank You

Thank you f or choosing a Han na Instrumen ts product. P lease read th is instruct ion
manual care fully before u sing this instru ment.

For techni cal support, cont act your local Han na Instrument s Office or
email us at [e-mail].

To find your lo cal Hanna Instrume nts Offic e or for additional information on
Hanna Instruments products, visit www.hannainst.com

Meter Calibration

From measurement
mode, press and
hold the ON/OFF
button until “CAL”
is displayed.

When “7.01” blinks
on the display, place
the tip of the probe
into a pH 7.01 or

4.01 buffer solution.

One-Point

One-Point Calibration with pH 4.01

B

A

One or Two-Point Calibration with pH 7.01

pH 4.01 will then
blink on the display.
Ignore it an d press
ON/OFF button.

Operation

Press the ON/OFF button to turn the meter on. All tags
will be displayed.

The meter will go into measurement mode: current
reading and calibrated buffers are displayed.

Range 0.0 to 14.0 pH
Resolution 0 .1 pH
Accuracy ±0.2 pH @25 °C/ 77 °F
Calibration Automatic, one or two-point
Electrode Built-in probe for specific application
Batte ry Type CR2032 Li-ion
Batter y Life Approxi mately 1000 hour s of continuous us e
Auto-off 8 minutes, 6 0 minutes or can be di sabled
Environment 0 to 50 °C (32 to 122 °F); R H 95% max
Dimensions 51 x 148 x 21 mm (2 x 5.8 x 0.9“)
Weight 4 3 g (1.5 oz.)

Preliminary Examination

Remove the m eter from th e packing mat erial and examin e it carefully t o make sure that
no damage has o ccurred durin g shipment. If not iceable damag e is evident, con tact your
local Hanna In struments O ffice.
Each meter i s supplied with:

• pH 4.01 buffer s olution liquid sa chet (2 pcs.)

• pH 7.01 buffer solut ion liquid sachet (2 p cs.)

• Meat, grease a nd fats acid clea ning solution (2 p cs.)

• Electrode storage solution, 13 mL dropper

• Electrode fill solution

• Instruction manual

• Quality certificate

Note: Save al l packing mater ial until you are s ure that the inst rument funct ions correctly.
All defec tive items mu st be returned i n the origina l packaging wi th the suppl ied accessori es.

Intended use

The meter has been specially designed for meat processing. In the meat processing
industr y, the monito ring of pH is conside red to be of the utm ost importanc e due to its
effec t on the meat's q uality facto rs including wate r binding capacit y and shelf life. Up on
slaughte r, biochemical proces ses begin to break d own the meat. Glyco lysis begins post ­mortem, c onverting gly cogen to lactic acid, reducing the pH o f the carcass. De pending
on a number of f actors such as ty pe of animal and even bre ed, this decrease in p H can
take anywhere from a singl e hour to many. It is vital t o monitor pH during t his phase
as once the lo west pH value is reach ed, the pH will begin to s lowly rise, indica ting that
decomposition has begun.
The pH value o f meat influence s its’ water bind ing capacity wh ich directly impacts
consumer q ualities such as tenderness and co lor. Lower pH value s result in a lower
water-bin ding capacit y and lighter colo rs. Factor s such as thes e can be importa nt when
consider ing how to ef ficiently p roduce meat pr oducts. Fo r example, when p roducing dr y
sausage s the meat must ha ve a low water bindin g capacity so t hat it can dry eve nly.
Dependin g on the type of th e final product an d the steps requi red to get there, pH
values wil l vary throughout t he meat processin g industry. It is impera tive, regardless
of the fina l product, that pH b e maintained at a lo w value to preven t bacterial spo ilage
and comply w ith food sa fety regul ations. By mon itoring pH valu es throughou t the meat
product ion process, y ou can ensure the c reation of cons istent and safe m eat product s.

Meter Overview

Preparation:

The pH elec trode is shipped with a protect ive cap containing s torage solut ion. Before
using the meter, remove the protective cap and cond ition the elec trode by soakin g the
tip (bot tom 4 cm (1.5”)) in pH 7.01 buffer solut ion for several m inutes. Then fo llow the
calibration procedure.

• Do not be alarm ed if white cry stals appear aroun d the cap. This is norm al with pH
electr odes and they dis solve when rin sed with wate r.

• Turn the meter o n by pressing ON /OFF button.

NEVER IMMER SE THE ELECTROD E OVER THE MAXIM UM IMMERSION LEV EL.

• For best results rec alibrate periodically.

• After use, rins e the electrode w ith water and sto re it with a few drops of s torage
solutio n in the protect ive cap.

• Reinstall the pro tective cap af ter each use.

DO NOT USE DIST ILLED OR DEIONIZED WATER F OR STORAGE PUR POSES.

Open Reference Junction with removable
sleeve design

Suspende d solids can permanently clog the p ores of a
ceramic reference junction. The open junct ion design
provide s a constant junct ion potential and m inimizes
blockage b y providing an ope n gel interfac e between th e
sample and in ternal Ag /AgCl refere nce. Should me at enter
into the jun ction, the juncti on can be easily clean ed and
refreshed with new bridge electrolyte.

Probe Features

PVDF Body

Polyvi nylidene fluori de (PVDF) is a food gr ade plastic that is r esistant to mos t chemicals
and solve nts, including so dium hypochlori te. It has high abrasion r esistance, mec hanical
strengt h and resistan ce to ultravio let. PVDF is also re sistant to fun gal growth.

Calibration
tags

Battery
indicator

Unstable
tag

Measurement

unit

Digits

Specifications

“Sto” will be
displayed when
the calibration
is saved.