Hanna Instruments HI 83140 User Manual
Instruction Manual
HI 83140
Portable pH/mV/ºC meter
with Probe Check
This Instrument is in
www.hannainst.com
WARRANTY
All Hanna Instruments meters are warranted for two years against
defects in workmanship and materials when used for their intended
purpose and maintained according to instructions. The electrodes and
the probes are warranted for a period of six months. 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 purchase, 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 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, Hanna Instruments Inc., Woonsocket, Rhode Island, 02895 , USA.
Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice.
Compliance with the CE Directives
Dear Customer,
Thank you for choosing a Hanna product. This manual will
provide you with the necessary information for correct operation of the meter. Please read it carefully before using the
meter. If you need additional technical information, do not
hesitate to e-mail us at tech@hannainst.com.
This instrument is in compliance with directives.
PRELIMINARY EXAMINATION
Remove the instrument from the packing material and
examine it carefully to make sure that no damage has
occurred during shipment. If there is any damage, notify
your Dealer.
Each meter is supplied with:
• HI 121700, amplified, combination, double-junction,
plastic-body, gel pH electrode with built-in temperature sensor;
• HI 70007 pH 7.01 sachet (1 pc)
• HI 70004 pH 4.01 sachet (1 pc)
• HI 700661 Cleaning Solution sachet (2 pcs)
• HI 50021 Check Solution sachet (2 pcs)
• Instruction Manual
• Calibration screwdriver
• 1 x 9V alkaline battery.
Note: Conserve all packing material until the instrument
has been observed to function correctly. Any defective
item must be returned in its original packing.
GENERAL DESCRIPTION
HI 83140 is an hand-held pH/mV/°C meter designed for
simplicity of use in taking pH, mV (ORP) and temperature
measurements.
The pH, mV and °C ranges are easily selected using a
membrane keyboard on the front panel.
Calibration procedure is very simple and adjustments are
easily made with two trimmers on the front panel.
The meter is also provided with Probe Check feature, which
allows the user to easily check the probe calibration status
at any time.
The built-in temperature sensor in the pH electrode allows
automatic temperature compensation of pH readings.
Moreover HI 83140 has been designed with a low battery
detector feature and a lightweight ABS plastic housing.
FUNCTIONAL DESCRIPTION
1) DIN connector for combination pH or ORP electrode.
2) Liquid Crystal Display.
3) Green and Red LED’s for Probe Check.
4) Check key.
5) mV key, to display the mV (ORP) readings when
using an ORP electrode or the mV equivalent to pH
values when using a pH electrode.
6) OFFSET trimmer for pH calibration.
7) SLOPE trimmer for pH calibration.
8) °C key, to display the temperature measurement.
9) pH key, to display the pH value.
10) ON/OFF key.
SPECIFICATIONS
Range pH 0.00 to 14.00
mV ±1999
°C 0.0 to 100.0
Resolution pH 0.01
mV 1
°C 0.1
Accuracy pH ±0.01
(@20°C/68°F) mV ±1
°C ±0.4
Typical EMC pH ±0.05
Deviation mV ±5
°C ±0.5
pH Calibration Manual, 2-point through trimmers
Temperature Automatic from 0 to 70°C (32 to 158°F)
Compensation
Electrode (*) HI 121700 pH-electrode with built-in
(included) temperature sensor and DIN connector
Battery Type 1 x 9V (IEC 6LR61) alkaline
Battery Life approx. 150 hours of continuous use
Environment 0 to 50°C (32 to 122°F);
max 95% RH non-condensing
Dimensions 164 x 76 x 45 mm (6.5 x 3.0 x 1.8")
Weight 250 g (8.8 oz.)
(*) The max. operating temperature of the HI 121700 pH electrode is 80ºC.
To perform measurements at higher temperature use adequate electrodes.
BATTERY REPLACEMENT
When the battery becomes weak, the
meter displays a blinking additional decimal point on the left side of the LCD.
When the low battery indicator appears only a few hours of
battery life is remaining. A low battery level may also result
in unreliable measurements. It is recommended to replace
the battery soon.
Unscrew the 3 screws on the back of the meter, remove the
battery cover and replace the battery while paying attention to its polarity.
Replacement must only take place in a non-hazardous area
using an alkaline 9V battery.
OPERATIONAL GUIDE
The meter is supplied complete with a 9V battery. Remove 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
in HI 70300 Storage Solution for half an hour to reactivate it.
Connect the pH electrode to the DIN connector on the top of
the instrument and remove the protective cap.
Turn the meter ON by pressing the ON/OFF key.
TAKING pH MEASUREMENTS
To take a pH measurement simply submerge the electrode tip (4cm/1½") into
the sample to be tested.
Press the pH key to select the pH mode.
Stir briefly and wait a couple of minutes for the reading to
stabilize. The display will show the pH value automatically
compensated for temperature variations.
In order to take accurate pH measurements, make sure that
the instrument has been calibrated for pH before use.
If measurements are taken in different samples successively, it
is recommended to rinse the electrode thoroughly to avoid
cross-contamination. After cleaning, rinse the electrode with
some of the sample to be measured.
TAKING ORP MEASUREMENTS
Connect the ORP electrode to the DIN connector on the top of
the meter and remove the protective cap.
Turn the instrument ON and enter the mV (ORP) mode by
pressing the mV key.
Submerge the ORP electrode tip (at least 4 cm/1½") into the
solution to be tested, stir gently and wait a few minutes for the
reading to stabilize.
TAKING TEMPERATURE MEASUREMENTS
Turn the instrument ON, press the °C key and allow the
reading to stabilize.
Note: It is recommended to clean often the probe with HI
700661 Cleaning Solution.
Note: After measurements have been completed, the in-
strument should be switched off, and the probe
cleaned and covered with the protective cap.
pH CALIBRATION
For greatest accuracy, frequent calibration of the instrument is
recommended. The instrument should be recalibrated for pH:
a) Whenever the pH electrode is replaced.
b) At least once a month.
c) After testing aggressive chemicals.
d) Where extreme accuracy is required.
e) Whenever requested by the Probe Check.
PREPARATION
Pour small quantities of pH4.01 and pH7.01 buffer 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. In this way contamination of the buffers is
minimized.
PROCEDURE
• Connect the pH electrode and switch the meter ON.
• Remove the protective cap from the electrode, rinse the tip
with some pH4.01 solution, then immerse the electrode into
a pH4.01 buffer solution; stir gently and wait a couple of
minutes for thermal equilibrium to be reached.
Note: The electrode should be submerged approximately 4 cm
(1½") into the solution.
• Press the °C key to
display the temperature of the buffer
(e.g. 20°C).
• Press the pH key to read pH values. Stir
gently and wait for a couple of minutes.
• Adjust the OFFSET trimmer on the lower left of the front
panel until LCD shows
the pH value at the
noted temperature.
OFFSET
• Rinse the electrode, immerse it in pH7.01 and stir gently.
• Wait a couple of minutes and adjust the SLOPE trimmer on
the lower right of the
front panel until the
LCD shows the pH
value at the noted
SLOPE
temperature.
The pH calibration is now complete.
ºC
pH
pH
PROBE CHECK FEATURE
CLEAN & CAL PROCEDURE
The unique Probe Check feature allows the user to check the
probe status at any time. Simply follow the below procedure
to check if the response of your electrode is still satisfactory or
maintenance is needed.
• Rinse thoroughly the probe with water.
• Immerse the probe in HI 50021 Check Solution.
Note: If the reading is around pH 4.0, the probe is broken
and has to be replaced.
• Wait a couple of minutes and then
press the CHECK key.
• If the green LED lights
up, the electrode can
still be used.
• If the red LED lights
up, Cleaning is
needed:
1. immerse the probe in HI 700661 Cleaning Solution for 5 minutes, then rinse it with tap water;
2. immerse again in HI 50021 Check Solution and
press the CHECK key;
3. if the green LED lights up, the electrode can still
be used;
4. if the red LED lights up, calibrate the meter (see
"pH Calibration").
Note: If it is not possible to calibrate, the probe has to be
replaced with a new one.
Note: For field applications, it is always recommended to
keep a spare probe handy. When anomalies are not
resolved with simple maintenance, change the probe
and recalibrate the meter.
Recommendations for Users
Before using these products, make sure that they are entirely suitable for the environment
in which they are used. Operation of these instruments in residential area could cause
unacceptable interferences to radio and TV equipments, requiring the operator to take all
necessary steps to correct interferences. Any variation introduced by the user to the supplied
equipment may degrade the instruments' EMC performance. To avoid damages or burns, do
not perform any measurement in microwave ovens.
pH VALUES AT VARIOUS TEMPERATURES
TEMP pH VALUES
°C 4.01 7.01 10.01
0
4.01
7.13
10.32
5
4.00
7.10
10.24
10
4.00
7.07
10.18
15
4.00
7.04
10.12
20
4.00
7.03
10.06
25
4.01
7.01
10.01
30
4.02
7.00
35
4.03
6.99
40
4.04
6.98
45
4.05
6.98
50
4.06
6.98
55
4.07
6.98
60
4.09
6.98
65
4.11
6.99
70
4.12
6.99
9.96
9.92
9.88
9.85
9.82
9.79
9.77
9.76
9.75
ACCESSORIES
HI 121700 amplified, combination pH-electrode with built-
in temperature sensor and DIN connector
HI 3618D amplified, combination, Platinum ORP-electrode
with built-in temperature sensor and DIN connector
HI 4619D amplified, combination, Gold ORP-electrode with
built-in temperature sensor and DIN connector
HI 70004P pH 4.01 buffer sachet, 20 mL (25 pcs)
HI 70007P pH 7.01 buffer sachet, 20 mL (25 pcs)
HI 70010P pH 10.01 buffer sachet, 20 mL (25 pcs)
HI 70300M Storage Solution, 230 mL bottle
HI 700661P Cleaning Solution, 20 mL sachet (25 pcs)
HI 50021P Check Solution, 20 mL sachet (25 pcs)
HI 7082 3.5M KCl Electrolyte, 4 x 50 mL
HI 7091M Reducing Pretreatment Solution, 230 mL bottle
HI 7092M Oxidizing Pretreatment Solution, 230 mL bottle
HI 731326 Calibration screwdriver (20 pcs)
ISTR83140 12/02
Loading...