Hanna Instruments HI 983305 User Manual
Instruction Manual
HI 983305
On-line, Waterproof
EC meter with Alarm
http://www.hannainst.com
This Instrument is in
Compliance with the CE Directives
Dear Customer,
Thank you for choosing a Hanna product. This manual will
provide you with the necessary information for the 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
EN 50081-1 and EN 50082-1.
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
PRELIMINARY EXAMINATION
PRELIMINARY EXAMINATIONPRELIMINARY 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 meter is supplied with:
• HI 7631/2;
• 12 VDC power adapter.
Note: Conserve all packing material until the instrument
has been observed to function correctly. Any defective
item must be returned in its original packing.
Hanna Instruments reserves the right to modify the design, construction
and appearance of its products without advance notice.
directives
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
HI 983305 is an instrument specially designed to meet the
needs of simple continuous monitoring of conductivity.
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.
The meter comes 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.
An output relay is provided for controlling an external device
(e.g. pump).
You no longer need to worry about battery changes either:
the unit runs without interruption on 12 VDC power supply.
FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION
1. Molded eye
2. Alarm LED
3. Relay cable
4. EC probe
5. 12 VDC power adapter
6. Power supply connector
7. Setpoint knob
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
Range 0 to 20 µS/cm (EC)
Accuracy (@ 25°C/77°F) ±2% f.s.
Typical EMC Deviation ±2% f.s.
Temperature Automatic from 5 to 50°C (41 to 122°F)
Compensation with ß = 2.4%
Setpoint 1 to 5 µS/cm
Hysteresis 1 µS/cm over setpoint
Alarm LED blinks and relay is activated when
EC value is 1 µS/cm higher than setpoint
Relay SPST NC contact output, 0.5A 30VDC/48VAC max,
resistive load, 100,000 strokes
Probe HI 7631/2 EC probe (included)
Casing IP54
Power supply External 12 VDC (included)
Dimensions 86 x 94 x 33 mm (3.4 x 3.7 x 1.3”)
Weight 150 g (5.3 oz.)
OPERATIONAL GUIDEOPERATIONAL GUIDE
OPERATIONAL GUIDE
OPERATIONAL GUIDEOPERATIONAL GUIDE
• Turn the meter on by connecting the 12 VDC power
adapter to the meter and to the mains.
• Immerse the EC probe in the solution,
making sure that 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 vessel. The tip
may lay on the bottom of the beaker.
• Adjust the setpoint knob to the desired
value in the range 1 to 5 µS/cm.
• When the EC reading becomes 1
µS/cm higher than setpoint, the
red alarm LED will blink and output relay is activated.
Note: During alarm condition the relay is de-energized (the
alarm contacts are open). When not in alarm condition,
the relay is energized (the alarm contacts close). If the
power supply is interrupted, the relay is de-energized as
if in alarm condition to alert the operator.
PROBE MAINTENANCE
This meter does not need probe cleaning when used in pure
water applications. If the probe needs to be cleaned, the
following procedure should be performed.
• Immerse the tip of the electrode 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.
ACCESSORIESACCESSORIES
ACCESSORIES
ACCESSORIESACCESSORIES
HI 7631/2 EC “flow thru” probe with ½”NPT thread, ATC
and 2 m (6.6’) cable
HI 7061L Electrode cleaning solution, 460 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
CE DECLARATION OF CONFORMITYCE DECLARATION OF CONFORMITY
CE DECLARATION OF CONFORMITY
CE DECLARATION OF CONFORMITYCE DECLARATION OF CONFORMITY
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 microwave ovens.
WARRANTYWARRANTY
WARRANTY
WARRANTYWARRANTY
HI983305 is warranted for two years against defects in workmanship and materials when
used for its intended purpose and maintained according to instructions. The probe is war-
ranted for a period of one year. 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.
To validate your warranty, fill out and return the enclosed warranty card within 14 days from the
date of purchase.
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.
PRINTED IN PORTUGAL
IS983305R1 06/98
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