HANNA instruments HI 983304, HI 983306, HI 983307, HI 983308 User Manual
Instruction Manual
&
HI 983303, HI 983304, HI983306
HI 983307, HI983308
On-line, Waterproof
EC-TDS meters with Alarm
www.hannainst.com
WARRANTY
These meters are warranted for two years against defects in workmanship and materials when used for their intended purpose and
maintained according to instructions. 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 reserves the right to modify the design, construction
and appearance of its products without advance notice.
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.
These instruments are in compliance with the directives.
PRELIMINARY EXAMINATION
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 meters are supplied with:
• Conductivity probe (fixed):
HI 7631/2 for HI 983304
HI 7632/2 for HI 983307 and HI 983308
HI 7634/2 for HI 983303 and HI 983306
• Calibration screwdriver
• 12 Vdc power adapter and instructions
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
These instruments are specially designed to meet the needs
of simple continuous monitoring of conductivity or TDS.
The housing has been completely sealed against vapors and
humidity with IP54 rating.
You can simply hang the meter right above the sample to be
tested for continuous measurement.
All the meters come with a probe that compensates for the
temperature variation automatically. The probe is easy to
clean and requires little maintenance.
You can even select your own setpoint and be alerted of an
abnormal situation with a flashing LED alarm.
Measurements are highly accurate and the meters can be
calibrated at one point.
You no longer need to worry about battery changes either:
the unit runs without interruption on 12 VDC power supply.
FUNCTIONAL DESCRIPTION
1. Molded eye
2. Alarm LED
3. Probe (fixed)
4. 12 Vdc power adapter
5. Power supply connector
6. Calibration trimmer
7. Liquid Crystal Display
SPECIFICATIONS
HI 983303
Range 0 to 1990 µS/cm
Resolution 10 µS/cm
Setpoint 200 to 1600 µS/cm
Hysteresis +100 µS/cm over setpoint
Alarm LED blinks when the EC value is
100 µS/cm higher than setpoint
Probe HI 7634/2 (fixed)
HI 983304
Range 0.00 to 19.99 µS/cm
Resolution 0.01 µS/cm
Setpoint 1.00 to 5.00 µS/cm
Hysteresis +1.00 µS/cm over setpoint
Alarm LED blinks when the EC value is
1.00 µS/cm higher than setpoint
Probe HI 7631/2 (fixed)
HI 983306
Range 0 to 1990 ppm
Resolution 0 ppm
TDS Factor 0.5
Setpoint 200 to 1600 ppm
Hysteresis ±100 ppm around setpoint
Alarm LED blinks when the TDS value is
outside hysteresis range
Probe HI 7634/2 (fixed)
HI 983307
Range 0.00 to 9.99 mS/cm
Resolution 0.01 mS/cm
Setpoint 0.70 to 3.50 mS/cm
Hysteresis ±0.20 mS/cm around setpoint
Alarm LED blinks when the EC value is
outside hysteresis range
Probe HI7632/2 (fixed)
HI 983308
Range 0.00 to 9.99 ppt
Resolution 0.01 ppt
TDS Facto 0.5
Setpoint 0.70 to 3.50 ppt
Hysteresis ±0.20 around setpoint
Alarm LED blinks when the EC value is
outside hysteresis range
Probe HI 7632/2 (fixed)
COMMON SPECIFICATIONS
Accuracy (@ 25°C/77°F) ±2% f.s.
Typical EMC Deviation ±2% f.s.
Temperature Automatic, 5 to 50°C (41 to 122°F)
Compensation with ß=2.4% (HI 983304) or
ß=2% (HI 983303/6/7/8)
Calibration Manual with one trimmer
Casing IP54
Power Supply 12 Vdc adapter (included)
Dimensions 86 x 110 x 43 mm (3.4 x 4.3 x 1.7’’)
Weight 215 g (7.6 oz.)
OPERATIONAL GUIDE
TAKING MEASUREMENTS
• Turn the meter on by connecting the 12 Vdc power
adapter to the meter and to the mains.
• Immerse the probe in the solution, making sure that the metal
pins are completely submerged.
• The LCD will show the EC or TDS
value. Any initial variation may
be due to temperature compensation and the fact that the probe
is adjusting itself to the new
sample. Allow the reading to stabilize and the meter will start
continuous monitoring.
ADJUSTING THE SETPOINT
• Whenever the reading varies from
the setpoint more than the hysteresis specified for your model, the
red alarm LED will blink.
PROBE MAINTENANCE
To minimize clogging and provide longer life for the probe,
it is recommended to clean it often or at least once a month.
• Immerse the tip of the probe in HI 7061 Cleaning
Solution for one hour.
• If a more thorough cleaning is required, brush the
metal pins with very fine sandpaper.
• After cleaning or when not in use, rinse the probe with
tap water.
Note: HI 983304 is supposed to be used for pure water
applications and, therefore, probe cleaning is not
required.
CALIBRATION
• With the supplied screwdriver, adjust the calibration trimmer until the display shows the calibration solution value:
1410 µS (HI 983303), 1380 ppm (HI 983306), 5.00
mS (HI 983307) or 6.44 ppt (HI 983308).
• The calibration is now complete and the instrument is
ready for use.
The instrument should be recalibrated at least once a
month and after performing probe cleaning procedure.
Note: HI 983304 is supposed to be used for pure water
applications and, therefore, does not need calibration.
ACCESSORIES
HI 7631/2* Flow-thru conductivity probe with ½” NPT
thread, ATC & 2 m (6.6’) cable (HI 983304)
HI 7632/2* Flow-thru conductivity probe with ½” NPT
thread, ATC & 2 m (6.6’) cable (HI 983307/8)
HI 7634/2* Flow-thru conductivity probe with ½” NPT
thread, ATC & 2 m (6.6’) cable (HI 983303/6)
CE DECLARATION OF CONFORMITY
These meters allow you to select the desired setpoint value
and be alerted by a visual alarm (red LED) when an
abnormal situation arises.
• To access the MEASURE/SET switch, unscrew and remove
the rear panel and gasket. Then move the switch to the
left (SET Mode).
• With a small screwdriver adjust the
setpoint trimmer to display the desired setpoint (within the specified
range; see Specifications table).
• Move back the switch to the right (MEASURE Mode).
• Close the meter with the rear panel, while making sure
the gasket is in place before tightening the screws.
For the greatest accuracy, frequent calibration of the instrument is recommended.
• Turn the meter on and make sure
that the MEASURE/SET switch is on
the MEASURE position.
• Pour a small quantity of the proper
calibration solution in a beaker. If
possible, use plastic beakers to minimize any EMC interference.
Use the 1413 µS/cm solution at HI 983303, 1382
ppm for HI 983306, 5.00 mS/cm for HI 983307, or
6.44 ppt for HI 983308.
• Immerse the probe in the solution,
making sure that the metal pins
are completely submerged.
Note: In order not to affect the accuracy of measurements,
it is important that the probe body does not touch
nor stand close to the side walls of the beaker.
• Wait for a couple of minutes for thermal equilibrium to
be reached, then tap the probe gently on the bottom,
then shake it, to make sure no air bubbles have
remained trapped.
HI 70031P 1413 µS/cm calibration solution, 20 mL sachet
(25 pcs)
HI 70032P 1382 ppm calibration solution, 20 mL sachet
(25 pcs)
HI 70038P 6.44 ppt calibration solution, 20 mL sachet
(25 pcs)
HI 70039P 5.00 mS/cm calibration solution, 20 mL sachet
(25 pcs)
HI 70031L 1413 µS/cm calibration solution, 500 mL bottle
HI 7039L 5.00 mS/cm calibration solution, 500 mL bottle
HI 7061L Probe cleaning solution, 500 mL bottle
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
* To be replaced by authorized technical personnel only
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 areas could cause unacceptable interferences to
radio and TV equipment.
The metal band at the end of the probe is sensitive to electrostatic
discharges. Avoid touching this metal band at all times. During operation, ESD wrist straps should be worn to avoid possible damage to the
probe by electrostatic discharges.
Any variation introduced by the user to the supplied equipment may
degrade the instrument’s EMC performance.
To avoid electrical shock, do not use these instruments when voltages at
the measurement surface exceed 24 Vac or 60 Vdc.
Use plastic beakers to minimize any EMC interferences.
To avoid damages or burns, do not perform any measurement in micro-
wave ovens.
IST9833R3 05/05
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