Hanna Instruments HI 8014 User manual

HI8014
Portable pH Meter
INSTRUCTION MANUAL

Thank you for choosing a Hanna Instruments product.
Please read this instruction manual carefully before
using the instrument.
This manual will provide you with the necessary
information for correct use of the instrument, as well
as a precise idea of its versatility.
If you need additional technical information, do not
hesitate to e‑mail us at [email protected] or view
our worldwide contact list at www.hannainst.com.
Dear
Customer,
All rights are reserved. Reproduction in whole or in part is prohibited
without the written consent of the copyright owner, Hanna Instru-
ments Inc., Woonsocket, Rhode Island, 02895, USA.

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Preliminary Examination ........................................................
Safety Measures ...................................................................
Description............................................................................
Functional Description............................................................
Specifications........................................................................
Operational Guide .................................................................
pH Calibration.......................................................................
Taking REDOX measurements .................................................
mV output ............................................................................
Display Codes Guide ..............................................................
Electrode Conditioning and Maintenance.............................13
Battery Replacement..........................................................16
Accessories........................................................................17
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13
4
4
5
7
12
18
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6
13
10
14
TABLE OF CONTENTS
19

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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 found, notify your Dealer or
the nearest Hanna Customer Service Center.
Each HI8014 meter is supplied with:
• HI1230B ‑plastic body, double jonction, gel, combination
• pH electrode with BNC and 1 m cable
• 9V battery
• calibration screwdriver
• calibration certificate
• instruction manual
Note: Save all packing material until you are sure that the
instrument functions correctly. Any defective item must be
returned in the original packing together with the supplied
accessories.
INCLUDED
Before using this product, make sure that it is entirely suitable
for your specific application and for the environment in which it
is used.
Operation of this instrument may cause interference to other
electronic equipment, requiring the operator to take steps to
correct interference. Any variation introduced by the user to
the supplied equipment may degrade the instrument’s EMC
performance.
To avoid damages or burns, do not put the instrument in
microwave ovens. For your and the instrument’s safety, do not
use or store the instrument in hazardous environments.
SAFETY MEASURES

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HI8014 is hand‑held pH/mV meter with interchangeable plastic‑
body electrode, simple controls on the front panel, low battery
detector, large easy‑to‑read display, simple calibration procedure
and lightweight ABS plastic housing.
HI8014 is an affordable portable pH/mV meter. The pH or mV
ranges are easily selected with a rotary knob, as well as the °C
range for manual temperature compensation.
DESCRIPTION
1) BNC socket for combination pH electrodes.
2) Liquid Crystal Display (LCD).
3) Rotary Knob: with the following selectable positions:
OFF To switch the meter off (in any other position the
instrument is on).
°C To display the manual temperature setting (through
°C trimmer).
pH To display the pH value.
mV To display the mV (ORP) readings when using an
ORP electrode or the mV equivalent to the pH values
when using a pH electrode.
4) Trimmers:
°C To set temperature manually.
mV/pH For SLOPE calibration of pH
AP For OFFSET calibration of pH.
FUNCTIONAL DESCRIPTION
1
2
3
4

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SPECIFICATIONS
Range pH
mV
0.00 to 14.00
±1999
Resolution pH
mV
0.01
1
Accuracy pH
@ 25 °C / 77 °F mV
±0.01
±1
pH Calibration Manual 2 point through offset and
slope trimmers
Offset Calibration ±1 pH
Slope Calibration from 85 to 105%
Temperature
Compensation
Manual from 0 to 100 ºC
(32 to 212 ºF)
pH Electrode
HI1230B combination, double‑
junction, gel‑filled, with BNC
connector and 1 m (3.3’) cable
(included)
Input Impedance 1012 Ω
Environment 0 to 50 ºC (32 to 122 ºF);
max 95% RH non‑condensing
Battery Type
Life
9V (1 pcs.)
100 hours of continuous use
Dimensions 185 x 82 x 53 mm
(7.3 x 3.2 x 2.1”)
Weight 265 g (9.3 oz.)

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INITIAL PREPARATION
Each meter is supplied complete with a 9V battery. Slide off the
battery compartment cover on the back of the meter, install the
battery while paying attention to its polarity.
Always remove the electrode protective cap before taking any
measurements. If the electrode has been left dry, soak the tip
(bottom 4 cm / 1½”) in pH 7.01 or pH 4.01 buffer solution for
a few hours or overnight to reactivate it.
Connect the pH electrode to the BNC socket on the top of the
meter.
Switch the meter on by turning the rotary knob to the °C, pH
or mV position.
OPERATIONAL GUIDE

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pH MEASUREMENTS
To take a pH measurement simply
submerge the tip (4 cm/1½”) of the
electrode and a HI98501 or another
accurate thermometer in the sample to
be tested.
Turn the rotary knob to the °C position to
display temperature setting on the LCD.
Using the provided screwdriver, turn
the temperature trimmer to display the
temperature measured by HI98501
e.g. 25 °C..
Turn the rotary knob to the pH position to
display the pH measurement.
Shake the electrode briefly and allow a
few minutes for the electrode to adjust and
stabilize. The display will show the pH value
compensated for the manually adjusted
temperature.
Notes: In order to take accurate pH measurements, make sure
that the instrument is calibrated for pH before use.
For a faster response time when using refillable electrodes,
unscrew the refill hole cap.
If measurements are taken in different samples successively, it
is recommended to clean the electrode thoroughly to eliminate
cross contamination. After cleaning, rinse the electrode with
some of the sample to be measured.
Temperature compensation
The pH reading is directly affected by temperature. In order for the
meter to measure the pH accurately temprature must be taken into
consideration. HI8014 provides only for manual compensation.
OPERATIONAL GUIDE

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ORP MEASUREMENTS
Connect an ORP electrode to the BNC socket on the top of the
meter.
To enter the “mV” mode (ORP Oxidation Reduction Potential)
switch the rotary knob to the mV position.
To measure the mV of a sample submerge the ORP electrode tip
(4 cm/1½”) in the sample to be tested.
Allow a few minutes for the readings to stabilize. Also, see further
on for more information about REDOX measurements.
AFTER MEASUREMENTS
After measurements switch the instrument off to save the battery,
disconnect the electrode from the meter and store it with a few
drops of HI70300 storage solution in the protective cap.
Operational Guide
OPERATIONAL GUIDE

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For best accuracy, frequent calibration of the instrument is recom‑
mended. The instrument should be recalibrated for pH:
a) Whenever the pH electrode or temperature probe is replaced.
b) At least once a month.
c) After testing aggressive chemicals.
d) Whenever the battery has been replaced.
e) When high accuracy is required.
PREPARATION
Pour small quantities of pH 7.01 (HI7007) and pH 4.01 (HI7004)
solutions into two clean beakers.
For accurate calibration use two beakers for each buffer solution:
the first one for rinsing the tip of the electrode, the second one for
calibration. This way, contamination of the buffers is minimized.
For accurate readings, use pH 7.01 (HI7007) and pH 4.01
(HI7004) if you are going to measure acidic samples, or pH 7.01
(HI7007) and pH 10.01 (HI7010) for alkaline measurements.
If you need to calibrate HI8014 to NBS standards, use pH 6.86
(HI7006) instead of pH 7.01 and pH 9.18 (HI7009) instead
of pH 10.01.
PROCEDURE
• Remove the protective cap from the
electrode, rinse and immerse it in
pH 7.01 buffer and stir gently. Wait
a couple of minutes for the reading
to stabilize.
• Take the temperature of the buffer solution with HI98501 or
another accurate thermometer, e.g. 20°C.
pH CALIBRATION
pH 7.01