Hanna Instruments HI99165 Instruction Manual

HI99165

pH / Temperature

Meter for Cheese Products

Thank You

Thank you fo r choosing a Ha nna Instrum ents produ ct.
Please re ad this instr uction man ual carefull y before
using the in strument .

For more in formation a bout Hanna an d our
products, visit www.hannainst.com or e-mail
us at [e-mail].

For techni cal suppor t, contac t your local Ha nna
oce or email us at [e-mail]

Find your local Hanna oce on www.hannainst.com

Preliminary Examination

Remove the in strument fr om the packin g material
and exami ne it carefull y to make sure that n o damage
has occur red during ship ment. If notic eable damage
is evident , contact yo ur local Hanna o ce.

Note: Save all p acking mater ial until you are
sure that t he instrumen t functions c orrectly. Al l
defect ive items must b e returned in t he original
packing t ogether wit h the supplied ac cessories .

General Description

The HI99165 is a po rtable pH an d temperatur e
meter desi gned for pH meas urement in chee se.

Througho ut the chees e making proce ss, pH control is
critic al to ensure consis tent ferment ation and foo d safety.
If the pH is to o low, the cheese m ay be prone to a bri ttle or
pasty t exture, as w ell as growth of m old after pa ckaging. If
the pH is too hi gh, the cheese m ay become too r m, and can
potentia lly be dangerou s for consumpti on due to the risk o f
pathog en formation. T he pH must be car efully monit ored to
detect d eviation fro m the optimal ra nge, which can c reate
problems w ith textu re, taste, and p ublic safet y of cheese.

FC242D elect rode has a sta inless steel sh eath and
conical tip t o ensure quick , easy measure ments and
fast resp onse. FC242D pH elec trode feat ures a built­in tempera ture sensor an d is ideal for meas urements
in semi-sol id samples suc h as cheeses.

Each meter i s supplied wit h:

• FC242D pH/tem perature pro be with DIN
connect or and 1 m (3.3’) c able

• pH 4.01 & 7.01 Buer sachet s

• HI700642 El ectrode cle aning soluti on
sachet s for cheese dep osits (2)

• 100 mL Beaker (1)

• 1.5V AA A Batterie s (3)

• Rugged car rying cas e

• Instru ction manual a nd visual quick s tart guide

Warranty

The meter i s warrante d for a perio d of two year s against de fects in
workma nship and mat erials when u sed for the ir intended p urpose
and maint ained accor ding to inst ruction s. The elec trode is wa rranted
for a perio d of six mont hs. This war ranty is li mited to repa ir or
replacem ent free of ch arge. Dama ge due to accid ents, misu se,
tamper ing or lack of pr escribe d maintenan ce is not covere d. If serv ice
is require d, contac t your local H anna oce. If u nder warra nty, repor t
the model n umber, date of pu rchase, se rial number a nd the natu re of
the probl em. If the rep air is not cove red by the war ranty, you w ill be
notie d of the charg es incurre d. If the inst rument is to b e returne d
to Hanna Ins trument s, rst ob tain a Return ed Goods Au thoriza tion
(RGA) numb er from the Techni cal Serv ice depar tment and th en
send it wi th shipping c osts prep aid. When shi pping any ins trument ,
make sure it i s properl y packaged f or complete p rotecti on.

All rights are r eserved. Reproduc tion in whole or in part i s prohibited without th e
written cons ent of the copyrig ht owner.

LCD Description

Accessories

Code Description

FC242D

Combina tion prea mplifie d pH elect rode wit h built-in
tempera ture sens or, DIN connec tor and 1 m (3 .3’)
cable, s tainless stee l body and conic t ip for use in the
food industry

HI7004L

pH 4.01 buf fer soluti on, 500 mL

HI7006L

pH 6.86 buf fer solut ion, 500 mL

HI7007L

pH 7.01 buffer so lution, 500 m L

HI7009L

pH 9.18 buf fer soluti on, 500 mL

HI7010L

pH 10.01 buf fer solutio n, 500 mL

HI70300L

Electrode storage solution, 500 mL

HI7061L

General p urpose cl eaning solu tion, 500 mL

HI70630L

Grease an d fats acid c leaning sol ution, 500 m L

HI70631L

Grease an d fats alka line cleanin g solutio n, 500 mL

HI70641L

Cleanin g and disin fect ion sol ution f or dair y produ cts , 500 mL

HI70642L

Cleanin g solution f or cheese de posits, 5 00 mL

HI710023

Shockproof rubber boot (orange)

HI710024

Shockproof rubber boot (blue)

HI72099111

Rugged carrying case

1. Automatic Temper ature
Compensation indicator

2. B attery percentage
(visible at p ower up)

3. S econdary display

4. Low ba ttery ind icator

5. Stability indicator

6. Calibration indicato r

7. Selec table

temperature unit

8. Primar y display

9. Mea suring unit for

primary display

Hanna Instr uments reser ves the right to m odify the desi gn, construc tion, or
appearance of its products without advance notice.

* The sensor i s rated 0 to 12 pH a nd 0 to 70 °C (32 to 15 8 °F).

IST99165 10/15

Maintenance:

• While unpa cking, the app earance of sal t deposits
around th e protectiv e cap is normal. T he salt depos its
will disso lve when rinse d with water.

• After use , rinse the elec trode wit h water and repla ce the
protec tive cap fille d with a few drops o f HI70300 stora ge
solutio n. If HI70300 is not av ailable, use pH b uffer.

DO NOT USE DIST ILLED OR DEIONIZED WATER FO R
STORAGE PURPOSES.

INSTRUCTION MANUAL

Specications

pH

Range* -2.00 to 16.00 pH

Resolution 0.01 pH

Accuracy ±0.02 pH

Calibration

automat ic, one or t wo-point
calibra tion, with t wo sets of
buffer s (standar d: pH 4.01, 7.01,

10.01 or NIST: 4.01, 6.86, 9. 18)

Temperature
Compensation

automatic

Temperature

Range* -5.0 to 105.0 °C /23.0 to 221.0 ° F

Resolution 0.1 °C/0.1 ° F

Accuracy

±0.5 °C up to 60 °C ; ±1.0 °C out side

±1.0 °F up to 140 °C ; ±2.0 °C outs ide

Additional
Specifications

Probe
(included)

FC242D preamplified pH/
tempera ture probe w ith DIN
connec tor and 1 m (3.3 ’) cable

Ba tte ry Typ e/
Life

1.5V AA A (3) / approxi mately
1200 hour s of continu ous use

Auto-Off after 8 minutes of non-use

Environment

0 to 50 °C (32 to 12 2 °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)

†

The probe ti p should be rin sed with puri ed water (rever se
osmosis, dis tilled, or dei onized) befo re and after p lacing in any
solution (b uer, storage, o r sample).

Operational Guide

Before usi ng the instru ment for the rs t time, open th e
batter y compart ment and inser t batter ies, obser ving the
pol arit y.

To connect the probe

With the me ter turned o, conn ect the FC242D pro be to the
DIN socket o n the bottom o f the meter by align ing the pins
and pushin g in the plug. Tigh ten the nut to ensu re a good
connect ion. Remove the p rotectiv e cap from the pro be
before taking any measurements.

To turn the meter ON and check
the batte ry status

Press the ON /OFF/MODE button to turn t he meter on. At
star t-up, all the LCD segmen ts are displaye d for 1 second,
then the pe rcent indicat ion of the remain ing batter y life is
displayed f or another sec ond. The meter t hen enters the
normal measuring mode.

Note: Holdin g the ON button wh ile turning th e meter on will
display all LC D segments as l ong as the but ton is pressed .

To freeze the display

While in meas urement mode , press and hold t he SET/HOLD
button u ntil “HOLD“ appe ars on the seco ndary displa y and
the readin g will be frozen on t he LCD. Press any b utton to
return to n ormal mode.

To turn the meter OFF

While in nor mal measurem ent mode, pre ss the ON/OFF/MODE
button . “OFF“ will appea r on the seconda ry display.

Note: When the m eter detect s the absence o f probe at its
input, t he message “Probe not connected“ a ppears on LCD
and “----“ blinks o n LCD lines. When a p robe is connec ted,
the “Probe not connected“ tag i s turned o, and the
readings a re displayed on th e LCD.

To enter calibration mode

Press and h old down the ON/OFF/MODE but ton until “OFF“
is replace d by “CAL.“ Release th e button.

To enter setup mode

Press and h old ON/OFF/MODE button unt il “CAL“ is replaced
by “TEMP“ on t he secondar y display. Release t he button.

Meter Setup

While in meas urement mod e, press and h old the ON/OFF/MODE
button u ntil “TEMP“ ap pears on the s econdary dis play.
Pressing t he ON/OFF/MODE button will n ow cycle throu gh
the vario us units and fea tures below w hich can then be
modied w ith the SET/HOLD button.

To select the temperatur e unit (°C/°F)

Press ON/OFF/MODE but ton until “TEMP ” and the selec ted
temperature unit “°C“ or “°F “ is displayed. Pr ess SET/HOLD
button t o select temp erature unit .

To select standard or NIST b uers for
calibration

Press ON/OFF/MODE but ton until “TEMP ” is displayed. Pr ess
ON/OFF/MODE once more to vie w the current bu er set.
To change the bue r set press SET/HOLD. Choos e “pH 7.01

BUFF” (for sta ndard buer se t: 4.01/7.01/10.01) or “pH 6.86
BUFF” (for NIST bu er set: 4.01/6.8 6/9.18).

To return to measurement mode

Press ON/OFF/MODE button.

pH Measurement and Calibration

†

• Make sure the meter h as been calibr ated before us e.

• If the probe is dr y, soak it in HI70300 st orage solut ion for
30 minutes to reactivate it.

• Submerge the pr obe in the sampl e to be tested wh ile
stirri ng it gently. Wait unt il the “Not Stable“ tag on the
LCD disappears.

• The LCD displays t he pH value (automa tically
compensa ted for temper ature) on the prim ary LCD, while
the secon dary LCD disp lays the sampl e temperatu re.

• If measuremen ts are taken in di erent sample s
successively, rinse the probe tip thoroughly

†

to eliminate
cross-con tamination . After cleanin g, rinse the pr obe tip
with som e deionized wat er and some of the s ample to be
measured.

For bett er accuracy, fre quent calibr ation of the pH
sensor wi th the meter is re commended. In a ddition,
the meter mu st be recalibr ated whenev er:

a) The p H electrode i s replaced.

b) After testing aggressive chemicals.

c) Where high accur acy is requir ed.

d) At least o nce a month.

pH calibration

• Enter calibrat ion mode while in p H measuremen t mode.

• Place the senso r into the rst c alibration b uer. If
perfor ming a two-p oint calibr ation, use pH 7.01 (pH 6.86 f or
NIST) bu er rst.

• The meter will ente r the calibrat ion mode, displa ying
“pH 7.01 USE” (or “pH 6.86 USE” fo r NIST).

Follow dire ctions for sin gle and two-p oint calibrat ion below:

Single-point calibr ation

1. P lace the probe i n any buer from t he selecte d buer set.
The meter w ill automatic ally recogni ze the buer val ue.

2. If the b uer is not reco gnized or the cal ibration os et
is out of the a ccepted rang e “---- WRNG“ is displayed.

3. If the b uer is recogni zed “REC“ is displa yed until the
reading is s table and the c alibration is a ccepted.

• If using pH 7.01, after acce ptance of the bu er
press any key t o exit. “OK1“ mess age is displayed
and meter re turns to pH meas urement mode.

• If using 4.01 or 10.01/9.18 b uer the “OK1“ messa ge is
displayed and meter returns to pH measurement mode.

Two-point calibration

Proceed w ith steps 1 thr ough 3 under sin gle­poin t cali brati on us ing 7.01 (pH 6.86 for NIST )
pH buer r st. Then follo w steps below:

• The “pH 4.01 USE“ mess age is then disp layed.

• Place the probe i n the second cal ibration bu er (pH 4.01
or 10.01/9.18). Whe n the second bu er is accepted, t he
LCD will displ ay “OK2” for 1 seco nd and the meter w ill
return to t he normal mea surement mode .

• If the buer is not r ecognized or th e slope is out of

accepted r ange “---- WRNG“ is display ed. Change the
buer, clean th e electrode o r press any key to e xit
calibration.

Note: When the c alibration p rocedure is
complete d, the “Calibrated “ tag is turne d on.

It is alway s recommended t o carry out a t wo­point cali bration for be tter accura cy.

Battery Replacement

The meter is s upplied with b atteries .

The meter di splays the rema ining batter y percenta ge when
turned o n. When the level is b elow 5%, the

symbol o n
the LCD blink s to indicate a lo w batter y condition. If t he
batter y level is low eno ugh to cause er roneous readi ngs,
the Bat tery Error Pr evention Syst em (BEPS) turn s the meter
o. It is recomme nded to replace t he batteri es as soon
as the displ ay ashes the ba ttery sy mbol. To replace the
batteries:

• Open the batt ery compar tment cap (on the b ottom of the

instr ument).

• Remove old batteries.

• Replace new bat teries, obs erving the p olarity on t he rear

of the inst rument.

• Close the bat tery compa rtment cap.