Hanna Instruments HI 981400 User manual
Instruction Manual
HI 981400
pH Indicator
with Alarm Signal for
HACCP Control
5.8
FOOD STABILITY
pH INDICATOR
HACCP
pH
pH4 pH7
This Instrument is in
Compliance with the CE Directives
Hanna Instruments reserves the right to modify the design, construction
and appearance of its products without advance notice.
WARRANTYWARRANTY
WARRANTYWARRANTY
WARRANTY
HACCP Food Stability pH Indicator is warranted for one years
against defects in workmanship and materials when used for their in-
tended purpose and maintained according to instructions. This warranty
is limited to repair or replacement free of charge.
Damages due to accident, 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 failure. 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 de-
partment and then send it with shipment costs prepaid. When shipping
any instrument, make sure it is properly packaged for complete protec-
tion.
To validate your warranty, fill out and return the enclosed warranty card
within 14 days from the date of purchase.
All rights are reserved. Reproduction in whole or in part is prohibited
without the written consent of the copyright owner, Hanna Instru-
ments Inc.
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
PRELIMINARY EXAMINATION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTION
Manufacturers since 1978
OPERATIONAL GUIDEOPERATIONAL GUIDE
OPERATIONAL GUIDEOPERATIONAL GUIDE
OPERATIONAL GUIDE
pH ELECTRODE MAINTENANCE
• Any combination pH electrode ending in a BNC connec-
tor can be attached to the controller. Choose from the
vast range of HANNA electrodes by consulting our
general catalog.
• Do not be alarmed if white crystals appear around the
electrode protective cap. This is normal with pH elec-
trodes and they dissolve when rinsed with water.
• When not in use, rinse the electrode with water to
minimize contamination and store it with a few drops of
storage (HI 70300) or pH 7 (HI 7007) solution in the
protective cap. Always replace the protective cap after
use.
DO NOT USE DISTILLED OR DEIONIZED WATER FOR
STORAGE PURPOSES.
• If the electrode has been left dry, soak the tip in a
storage (HI 70300) or pH 7 (HI 7007) solution for at
least one hour to reactivate it.
• To minimize clogging and provide longer life for the pH
electrode, it is recommended to clean it at least once o
month. Immerse the tip of the electrode in HI 7061 for
half an hour and then rinse it with tap water.
PRINTED IN PORTUGAL ISTR981400R1 04/2000
Dear Customer,
Thank you for choosing a Hanna product. This manual will
provide you with the necessary information for a correct
operation. Please read it carefully before using the meter. If
you need additional technical information, do not hesitate
These instruments are in compliance with the directives
EN 50081-1 and EN 50082-1.
Remove the instrument from the packing material and
examine it carefully. If any damage has occurred during
shipment, immediately notify your Dealer or the nearest
Hanna Customer Service Center.
The meter is supplied with:
• Calibration screwdriver;
• pH 4.01 and 7.01 buffer solutions (20 mL each);
• 12 VDC power adapter.
Note: Conserve all packing material until the instrument
has been observed to function correctly. Any defective
item must be returned in its original packing.
HACCP Food Stability pH Indicator is an indicator specially
designed to check pH in foodstuff.
The pH value ranks as one of the most important indicators
of food quality and safety. pH of raw ingredients such as
milk and meat is measured to ensure that quality standards
have been properly met. pH is also monitored at different
stages of food preparation and transformation to guarantee
safety, improve production and enhance quality.
HI 981400HI 981400
HI 981400HI 981400
HI 981400 measures and displays the pH value on a
liquid cristal display. In addition, a flashing LED will
indicate if the measured pH exceeds the selected limit.
The HANNA range of electrodes includes some models spe-
cially made for the food sector, such as FC 200BFC 200B
FC 200BFC 200B
FC 200B with an
open junction and FC 230BFC 230B
FC 230BFC 230B
FC 230B with a cutting blade recom-
mended for meat measurement.
With a built-in hook, you can simply hang the meter right
above the sample to be tested for repetitive measurements.
The meter can be calibrated at one or two points.
You no longer need to worry about battery changes either: the
unit runs without interruption on 12 VDC power supply.
http://www.hannacan.com
FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTION
1. Molded eye
2. Alarm LED
3. pH 4.0 calibration trimmer
4. BNC connector for pH electrode
5. Liquid Crystal Display
6. pH 7.0 calibration trimmer
7. Power supply connector
8. 12 VDC power supply (included)
5.8
FOOD STABILITY
pH INDICATOR
HACCP
pH
pH4 pH7
Any pH electrode ending in a
BNC connector can be attached
to the meter
1
2
3
4
6
5
7
8
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
Range 0.0 to 14.0 pH
Resolution 0.1 pH
Accuracy (@ 25°C/77°F) ±0.2 pH
Typical EMC Deviation ±0.2 pH
Setpoint 4.0 to 7.5 pH
Alarm LED blinks when
measurement is higher than setpoint
Calibration Manual with two trimmers
for offset (pH 7.0) and slope (pH 4.0)
Power supply External 12 VDC (included)
Dimensions 86 x 94 x 33 mm (3.4 x 3.7 x 1.3”)
meter only
Weight 150 g (5.3 oz.) meter only
TAKING pH MEASUREMENTS
• Turn the meter on by connecting the 12 VDC power
adapter to the meter and the mains.
• Connect a pH electrode to the HACCP Indicator.
• Remove the protective cap from the pH electrode and
immerse the tip (4 cm/1½”) in the sample.
• Allow the reading to stabilize.
ADJUSTING THE SETPOINT
You can select a Setpoint between 4.0 and 7.5 pH. A visual
LED indication alerts you when the sample pH is more than
the desired value.
• Unscrew and remove the rear panel and gasket seal to
access the MEASURE/SET switch and the Setpoint ad-
justment trimmer.
• Move the switch up to visualize the Setpoint.
• With a small screwdriver adjust the Setpoint trimmer to
display the desired value. The Setpoint is factory set at
5.5 pH.
• Move the switch down to return to measurement mode.
• Replace the rear panel and the gasket, ensuring the
unit is properly closed.
• Whenever the pH reading ex-
ceeds Setpoint, the alarm LED
blinks to warn the user.
For better accuracy, frequent calibration of the instrument is
recommended. In addition, the instrument must be recali-
brated whenever:
a) The pH electrode is replaced.
b) After testing aggressive samples.
c) Where higher accuracy is required.
d) At least once a month.
e) When the electrode has been used for a long time.
PREPARATION
Pour small quantities of pH 7.0 (HI 7007HI 7007
HI 7007HI 7007
HI 7007) and pH 4.0
(HI 7004HI 7004
HI 7004HI 7004
HI 7004) solution into two clean beakers.
For accurate calibration use two beakers for each buffer
solution, the first one for rinsing the tip of the electrode and
the second one for calibration. This way, contamination of
the buffers is minimized.
A range of HANNA buffer solutions in single-use sachets is
also available for a more hygienic calibration.
CALIBRATION PROCEDURE
• Turn the meter on and make sure that the MEASURE/SET
switch is on the MEASURE mode.
• Remove the protective cap from
the electrode, rinse and im-
merse it in a pH 7.0 buffer.
Stir gently and then wait a
couple of minutes for the read-
ing to stabilize.
Note: The electrode should be sub-
merged approximately 4 cm
(1½”) in the solution.
CALIBRATIONCALIBRATION
CALIBRATIONCALIBRATION
CALIBRATION
HI 7004 HI 7007HI 7004 HI 7007
HI 7004
HI 7007
RINSE
HI 7007
CALIBRATION
• Adjust the right hand trimmer with the calibration
screwdriver until the LCD shows pH 7.0.
•Rinse and immerse the pH electrode in
pH 4.0 solution (second buffer) and stir
gently.
• Wait a couple of minutes and then adjust the left hand
trimmer until the LCD shows the value of the second
buffer (4.0 in this case).
The pH calibration is now complete.
4 cm
(1½")
7.0
FOOD STABILITY
pH INDICATOR
HACCP
pH
pH4 pH7
Recommendations for Users
Before using this product, make sure that it is entirely
suitable for the environment in which it is used. Operation
of this instrument in residential areas could cause unaccept-
able interference to radio and TV equipment.
The glass bulb at the end of the electrode is sensitive to
electrostatic discharge. Avoid touching this glass bulb at all
times. During operation, ESD wrist straps should be worn to
avoid possible damage to the electrode by electrostatic dis-
charge.
Any variation introduced by the user to the supplied equip-
ment may degrade the instrument’s EMC performance.
To avoid electrical shock, do not use this instrument when
voltage at the measurement surface exceeds 24 VAC or 60 VDC.
To avoid damage or burns, do not perform any measurement
in microwave ovens.
ACCESSORIESACCESSORIES
ACCESSORIESACCESSORIES
ACCESSORIES
FC 200B Conic open junction pH electrode
FC 230B pH electrode with optional blade
FC 098 Stainless steel blade, 20mm (0.8”)
FC 099 Stainless steel blade, 35mm (1.4”)
HI 70004P pH 4.01 solution, 20 mL sachet (25 pcs)
HI 70007P pH 7.01 solution, 20 mL sachet (25 pcs)
HI 710005 12 VDC power adapter, US plug
HI 710006 12 VDC power adapter, European plug
HI 710012 12 VDC power adapter, Australian plug
HI 710013 12 VDC power adapter, Southern Africa plug
HI 710014 12 VDC power adapter, UK plug
HI 77400P pH 4 & 7 solutions, 20 mL sachet (5 each)
HI 7004M pH 4.01 solution, 230 mL
HI 7007M pH 7.01 solution 230 mL
HI 70300M Storage solution, 230 mL
HI 7061M Cleaning solution, 230 mL
ISTRHI981400 04/2000
PRINTED IN PORTUGAL
SET
MEAS
5.8
FOOD STABILITY
pH INDICATOR
HACCP
pH
pH4 pH7
SET
MEAS
