Hanna Instruments HI 8819 User manual

HI 8819 - HI 8820
Bench Conductivity
Meters
Instruction Manual
Standard Conductivity at 25°C
Standard
HI 7033
HI 7031
HI 7030
HI 7034
Conductivity
TEMPERA
TURE
90 µS
1413 µS
12,880 µS
80,000 µS
OFF
ON
Standard Conductivity at 25°C
Standard
HI 7033
HI 7031
HI 7030
HI 7034
Conductivity
TEMPERATURE
COEFFICIENT
90µS
1413 µS
12,880 µS
80,000 µS
OFF
ON
1999
µS
199.9
µS
99.9
mS
19.99
mS
0
0.5 11.5 2
2.5
HI 8819
HI 8820
COND
TEMP
1999
µS
199.9
µS
99.9
mS
19.99
mS
http://www.hannainst.com These Instruments are in
Compliance with the CE Directives

2
Dear Customer,
Thank you for choosing a Hanna Instruments Product.
Please read this instruction manual carefully before using the instru-
ment.
This manual will provide you with all the necessary information for the
correct use of the instrument, as well as a precise idea of its versatility
in a wide range of applications.
These instruments are in compliance with CSA, UL and (EN
50081-1 and EN 50082-1) directives.
TABLE OF CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTS
PRELIMINARY EXAMINATION ................................................................ 3
GENERAL DESCRIPTION ........................................................................ 3
KEYBOARD AND REAR PANEL ............................................................... 4
SPECIFICATIONS .................................................................................. 5
CONDUCTIVITY MEASUREMENTS ........................................................... 6
CALIBRATION ....................................................................................... 8
CONDUCTIVITY VS. TEMPERATURE CHART ........................................... 12
TEMPERATURE COMPENSATION .......................................................... 13
DETERMINATION OF THE TEMPERATURE
COEFFICIENT OF A SOLUTION (FOR HI8820 ONLY) .............................. 14
PROBE MAINTENANCE ....................................................................... 15
ACCESSORIES .................................................................................... 16
WARRANTY ........................................................................................ 18
CE DECLARATION OF CONFORMITY...................................................... 19
ISO 9000 Certified
Company since 1992

3
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
PRELIMINARY EXAMINATION
Remove the instrument from the packing material and examine it to
make sure that no damage has occurred during shipping. If there is
any damage, notify your Dealer.
Each meter comes supplied with a conductivity probe (HI7685 for
HI8819 or HI7687 for HI8820), a voltage adapter, a dust cover and
an instruction manual.
Note::::: Save all packing material until you are sure that the instrument
functions correctly. All defective items must be returned in the
original packing with the supplied accessories.
HI8819 and HI8820 are digital bench-top multirange conductivity
meters designed for simplicity of use in measuring electrical conduc-
tivity in liquids. Four ranges of conductivity measurements are provided
to cover every application from deionized water to brine. The conduc-
tivity probe does not require changing or re-calibration when switching
from one range to another.
The probe is made of glass with 4 platinum rings that are corrosion
resistant. It is also suitable for measuring conductivity of liquids in
small sample sizes, and comes with a 1 m (3.3') cable.
The temperature effect can be compensated through a knob on the
front panel of HI8819.
With HI8820, the 4-ring probe has a built-in temperature sensor that
automatically compensates for temperature changes in the liquid
tested. The temperature coefficient can be adjusted from 0 to 2.5%.
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTION

4
Standard Conductivity at 25°C
Standard
HI 7033
HI 7031
HI 7030
HI 7034
Conductivity
TEMPERATURE
COEFFICIENT
84 µS
1413 µS
12,880 µS
80,000 µS
OFF
ON
1999
µS
199.9
µS
99.9
mS
19.99
mS
0
0.5 11.5 2
2.5
Standard Conductivity at 25°C
Standard
HI 7033
HI 7031
HI 7030
HI 7034
Conductivity
TEMPERATURE
84 µS
1413 µS
12,880 µS
80,000 µS
OFF
ON
COND
TEMP
1999
µS
199.9
µS
99.9
mS
19.99
mS
Keyboard of HI 8819
Keyboard of HI 8820
KEYBOARD & REAR PANELKEYBOARD & REAR PANEL
KEYBOARD & REAR PANELKEYBOARD & REAR PANEL
KEYBOARD & REAR PANEL
KEYBOARD:
ON/OFF To switch the instrument ON or OFF
COND/TEMP To select the display of conductivity readings or tem-
perature settings for compensation (for HI8819 only)
199.9 µS To select the range 0.0 to 199.9µS/cm
1999 µS To select the range 0 to 1999µS/cm
19.99 mS To select the range 0.00 to 19.99 mS/cm
99.9 mS To select the range 0.0 to 99.9mS/cm
TEMPERATURE Knob: To manually set to the temperature compen-
sation of the reading (for HI8819 only)
TEMPERATURE COEFFICIENT knob: To set the temperature coeffi-
cient from 0% to 2.5% per °C (for HI8820 only).
REAR PANEL:
1) Probe Connection
Connect the conductivity probe to the DIN socket.
2) Calibration Trimmer
3) DC Power Socket
Power connection
Plug the 12VDC adapter (HI710005 or HI710006) into the DC socket.
Note: Make sure the main line is protected by a fuse.
CAL. DC POWER
12V to 20V
CONDUCTIVITY
ELECTRODE +
123

5
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
HI8819
Range 0.0 to 199.9 µS/cm
0 to 1999 µS/cm
0.00 to 19.99 mS/cm
0.0 to 99.9 mS/cm
Resolution 0.1 µS/cm; 1 µS/cm
0.01 mS/cm; 0.1 mS/cm
Accuracy ±1% Full Scale excluding probe error
Typical EMC ±1% Full Scale
Deviation
Calibration Manual single point through trimmer
Temperature Manual from 0 to 50°C (32to 122°F)
Compensation with ß at 2%/°C
Probe HI 7685 platinum 4-ring conductivity probe
with 1 m (3.3') cable (included)
Power Supply 12VDC through HI710005 or HI710006 (included)
Environment 0 to 50°C (32 to 122°F); 95% RH
Dimensions 230x 170x 70mm (9.1 x 6.7 x 2.7")
Weight 1 Kg (2.2 lbs)
HI8820
Range 0.0 to 199.9 µS/cm
0 to 1999 µS/cm
0.00 to 19.99 mS/cm
0.0 to 99.9 mS/cm
Resolution 0.1 µS/cm; 1 µS/cm
0.01 mS/cm; 0.1 mS/cm
Accuracy ±1% Full Scale excluding probe error
Typical EMC ±2% Full Scale
Deviation
Calibration Manual single point through trimmer
Temperature Automatic from 0 to 50°C (32to 122°F)
Compensation with a variable ß from 0 to 2.5%/°C
Probe HI 7687 platinum 4-ring conductivity probe
with 1 m (3.3') cable (included)
Power Supply 12VDC through HI710005 or HI710006 (included)
Environment 0 to 50°C (32 to 122°F); 95% RH
Dimensions 230x 170x 70mm (9.1 x 6.7 x 2.7")
Weight 1 Kg (2.2 lbs)

6
CONDUCTIVITY MEASUREMENTSCONDUCTIVITY MEASUREMENTS
CONDUCTIVITY MEASUREMENTSCONDUCTIVITY MEASUREMENTS
CONDUCTIVITY MEASUREMENTS
Make sure that the instrument has been calibrated before taking
conductivity measurements (see page 8 for calibration procedure).
Connect the probe to the back of the meter and
switch the instrument on by pressing the ON/OFF
key. If possible, to minimize any EMC interfer-
ences, use plastic beakers for the solutions.
FOR HI8819:
••
••
• Immerse the probe in the solution submerging
the holes of the sleeve (0.5 cm below). Tap
the probe lightly on the bottom of the recipi-
ent to remove any air bubbles which may
have being trapped inside the sleeve.
••
••
• Take the temperature of the solution with a
CHECKTEMP or a glass thermometer.
••
••
• Press the COND/TEMP key to select tempera-
ture mode.
••
••
• Adjust the TEMPERATURE knob until the LCD
displays the temperature of the solution.
••
••
• Press the COND/TEMP key to select the con-
ductivity measurement range.
••
••
• If the display shows only a "1", there is an
over-range condition. Select the next higher
range.
••
••
• The conductivity reading displayed has been manually compen-
sated for temperature variations.
••
••
• After the measurement is completed, the in-
strument should be switched off by pressing
the ON/OFF key and the probe should be
cleaned (see page 15 for cleaning procedure).
°C
TEMPERATURE
mS

7
2
1.51
0.5
0
TEMPERATURE COEFFICIENT
FOR HI8820:
••
••
• Immerse the probe in the solution submerging
the holes of the sleeve (0.5 cm below). Tap
the probe lightly on the bottom of the recipient
to remove any air bubbles which may have
being trapped inside the sleeve.
••
••
• If the display shows only a "1", there is an
over-range condition. Select the next higher
range.
••
••
• Adjust the "TEMPERATURE COEFFICIENT" knob
to the value of the solution. See page 15 for
the procedure to select the correct coefficient
value.
••
••
• Before taking any measurement allow a few minutes for the
reading to stabilize. As soon as the thermal equilibrium is reached
(3 or 4 minutes) the reading stops drifting.
• The conductivity reading displayed has been automatically com-
pensated for temperature variations (after 2 or 3 minutes).
••
••
• After the measurement is completed, the in-
strument should be switched off by pressing
the ON/OFF key and the probe should be
cleaned (see page 15 for cleaning procedure).

8
CALIBRATIONCALIBRATION
CALIBRATIONCALIBRATION
CALIBRATION
INITIAL PREPARATION
If you are measuring in the mS ranges, calibrate the meter using
HI7030 (or HI8030) conductivity solution (12.88 mS @ 25°C) or
HI7034 (or HI8034) conductivity solution (80 mS @ 25°C). Choose
a solution with a conductivity value close to the solution to be
measured. For the µS ranges, use HI7031 (or HI8031) conductivity
solution (1413 µS @25°C) when calibrating in the range from 0 to
1999 µS or HI7033 (or HI8033) conductivity solution (84 µS @
25°C) when calibrating in the range from 0 to 199.9 µS.
Rinse the probe thoroughly in distilled water. This is to minimize
contamination of the calibration solution and secure higher accuracy.
When possible, use plastic beakers to minimize any EMC interfer-
ences.
PROCEDURE FOR HI8819:
• Pour a small quantity of the conductivity so-
lution into a plastic beaker e.g. HI7030 or
HI8030 (12.88 mS/cm @ 25°C).
• Immerse the conductivity probe in the solu-
tion submerging the holes of the sleeve (0.5cm
below). Make sure that no air bubbles are
trapped inside the glass sleeve. Wait for 2 or
3 minutes for the thermal equilibrium.
• Use a CHECKTEMP or a glass thermometer
with resolution of 1° for measuring the
temperature of the solution (e.g. 18°C).
• Switch the instrument on by pressing the ON/
OFF key.
• Press COND/TEMP key to display temperature
settings.
• Adjust the TEMPERATURE knob to display
"25°C" if you are using 25°C (77°F) as refer-
ence temperature.
HI 7030
°C
TEMPERATURE

9
CAL DC POWER
12V to 20V
CONDUCTIVITY
ELECTRODE +
mS
TEMPERATURE
• Press the COND/TEMP key to display conduc-
tivity readings and select the appropriate
conductivity range
e.g. "19.99 mS" for HI7030/HI8030,
"99.9 mS" for HI7034/HI8034,
"1999µS" for HI7031/HI8031,
"199.9 µS" for HI7033/HI8033.
• Using a small screwdriver adjust the trimmer on the rear panel
until the display shows the conductivity reading at the tempera-
ture of the solution noted earlier (see the
conductivity vs. temperature chart on page
13) e.g. "11.19 mS".
Calibration is now completed and the instrument is ready for use.
TO CHECK THE CALIBRATION
• Press the COND/TEMP key to display the tem-
perature.
• Adjust the TEMPERATURE knob to display the
temperature of the calibration solution, i.e.
the temperature noted with the CHECKTEMP
or glass thermometer.

10
• Press the COND/TEMP key to display conduc-
tivity.
• The display should read the conductivity of the
calibrating solution at the reference tempera-
ture.
E.g. using HI7030/HI8030 with a so-
lution at 18°C, the reading will be
"12.88 mS".
PROCEDURE FOR HI8820:
• Pour a small quantity of the conductivity solu-
tion into a plastic beaker.
• Immerse the conductivity probe in the solution sub-
merging the holes of the sleeve (0.5 cm below).
Make sure that no air bubbles are trapped inside
the glass sleeve. Wait for 2 or 3 minutes for thermal
equilibrium.
• Switch the instrument on by pressing the ON/OFF
key.
• Select the appropriate conductivity range
e.g. "19.99 mS" for HI7030/HI8030,
"99.9 mS" for HI7034/HI8034,
"1999µS" for HI7031/HI8031,
"199.9 µS" for HI7033/HI8033.
• Set the temperature coefficient knob to
2%°C.
HI 7030
0
0.5 11.5 2
2.5
TEMPERATURE
COEFFICIENT