Instruction Manual
HI 8730
Portable
EC, TDS, Temperature
Meter
www.hannainst.com
WARRANTY
This instrument is guaranteed for two years against
defects in workmanship and materials when used for their
intended purpose and maintained according to instructions.
Electrodes and probes are guaranteed for six months.
This warranty is limited to repair or replacement free of charge.
Damages due to accidents, 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 Num-
ber 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.
Dear Customer,
Thank you for choosing a Hanna product.
Please read carefully this instruction manual before using the
meter. If you need additional technical information, do not
This instrument is 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 meter is supplied with:
• HI 761285 conductivity probe with built-in temperature
sensor, DIN connector and 1 m (3.3’) cable
• HI 70031 (1413 μS/cm) calibration solution sachet
• HI 70032 (1382 ppm) calibration solution sachet
• Battery & 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
HI 8730 is a complete, versatile and water-tight conductivity
meter, that can measure EC in the 0 to 1990 μS/cm range,
TDS from 0 to 1990 ppm, and temperature from 0 to 70°C.
The desired measurement mode is easily selectable through a
membrane keyboard on the front panel.
Conductivity measurements are automatically compensated for
temperature changes with a fixed coefficient of 2%/°C.
The HI 761285 probe features a built-in temperature sensor,
and it has been designed to require little maintenance.
The meter can be calibrated at one point for EC or TDS, while
the temperature range is factory calibrated.
Recommendations for Users
Before using these products, make sure that they are entirely suitable for the environment in
which it is used. Operation of these instruments in residential areas could cause unacceptable
interferences to radio and TV equipment. Any variation introduced by the user to the supplied
equipment may degrade the instruments’ EMC performance. To avoid electrical shock, do not
use this instrument when voltage at the measurement surface exceeds 24 Vac or 60 Vdc. To
avoid damage or burns, do not perform any measurement in microwave ovens.
FUNCTIONAL DESCRIPTION SPECIFICATIONS
Range EC 0 to 1990 μS/cm
TDS 0 to 1990 ppm
Temperature 0 to 70°C (*)
Resolution EC 10 μS/cm
TDS 10 ppm
Temperature 1°C
Accuracy EC/TDS ±2% f.s.
Temperature ±1°C
TDS Factor 0.5
Calibration EC/TDS Manual, 1 point, through front knob
Temperature Factory calibrated
Probe HI 761285 (included)
Temperature Automatic, 0 to 50°C (32 to 122°F)
Compensation with β=2%/°C
Environment 0 to 50 °C (32 to 122°F); RH max 100%
Battery Type / Life 1x9V alkaline / approx. 250 hours
Dimensions 164 x 76 x 45 mm (6.4 x 3.0 x 1.8’’)
Weight 250 g (8.8 oz.)
(*) If using HI 761285 probe, it is recommended to not exceed 50°C
Hanna Instruments reserves the right to modify the design,
construction and appearance of its products without advance notice.
All rights are reserved. Reproduction in whole or in part is prohibited
without the written consent of the copyright owner, Hanna Instruments.
1) DIN connector for probe
2) Liquid Crystal Display
3) μS/cm (EC) range selection key
4) EC/TDS calibration knob
5) ppm (TDS) selection key
6) °C (Temperature) selection key
7) ON/OFF key
(11 pages)
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