CE DECLARATION OF CONFORMITY...................................................... 19
ISO 9000 Certified
Company since 1992
2
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
PRELIMINARY EXAMINATION
PRELIMINARY EXAMINATIONPRELIMINARY 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.
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
HI8819 and HI8820 are digital bench-top multirange conductivity
meters designed for simplicity of use in measuring electrical conductivity in liquids. Four ranges of conductivity measurements are provided
to cover every application from deionized water to brine. The conductivity 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%.
3
KEYBOARD & REAR PANELKEYBOARD & REAR PANEL
KEYBOARD & REAR PANEL
KEYBOARD & REAR PANELKEYBOARD & REAR PANEL
KEYBOARD:
ON/OFFTo 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 µSTo select the range 0.0 to 199.9µS/cm
1999 µSTo select the range 0 to 1999µS/cm
19.99 mSTo select the range 0.00 to 19.99 mS/cm
99.9 mSTo 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).
Standard Conductivity at 25°C
ON
Standard
OFF
COND
TEMP
HI 7033
HI 7031
HI 7030
HI 7034
Keyboard of HI 8819
Conductivity
84 µS
1413 µS
12,880 µS
80,000 µS
199.9
19.99
1999
µS
µS
99.9
TEMPERATURE
mS
mS
ON
OFF
Standard Conductivity at 25°C
Conductivity
Standard
HI 7033
HI 7031
HI 7030
HI 7034
84 µS
1413 µS
12,880 µS
80,000 µS
199.9
19.99
mS
1999
µS
µS
99.9
mS
1.5
1
0.5
0
TEMPERATURE
COEFFICIENT
Keyboard of HI 8820
REAR PANEL:
1) Probe Connection
Connect the conductivity probe to the DIN socket.
2) Calibration Trimmer
3) DC Power Socket
CONDUCTIVITY
ELECTRODE
123
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
4
+
2
2.5
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
HI8819
Range0.0 to 199.9 µS/cm
0 to 1999 µS/cm
0.00 to 19.99 mS/cm
0.0 to 99.9 mS/cm
Resolution0.1 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
CalibrationManual single point through trimmer
TemperatureManual from 0 to 50°C (32to 122°F)
Compensationwith ß at 2%/°C
ProbeHI 7685 platinum 4-ring conductivity probe
with 1 m (3.3') cable (included)
Power Supply12VDC through HI710005 or HI710006 (included)
Environment 0 to 50°C (32 to 122°F); 95% RH
Dimensions230x 170x 70mm (9.1 x 6.7 x 2.7")
Weight1 Kg (2.2 lbs)
HI8820
Range0.0 to 199.9 µS/cm
0 to 1999 µS/cm
0.00 to 19.99 mS/cm
0.0 to 99.9 mS/cm
Resolution0.1 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
CalibrationManual single point through trimmer
TemperatureAutomatic from 0 to 50°C (32to 122°F)
Compensationwith a variable ß from 0 to 2.5%/°C
ProbeHI 7687 platinum 4-ring conductivity probe
with 1 m (3.3') cable (included)
Power Supply12VDC through HI710005 or HI710006 (included)
Environment 0 to 50°C (32 to 122°F); 95% RH
Dimensions230x 170x 70mm (9.1 x 6.7 x 2.7")
Weight1 Kg (2.2 lbs)
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 interferences, 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 recipient 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.
°C
••
• Press the COND/TEMP key to select the con-
••
TEMPERATURE
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.
mS
••
• 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).
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