HI 9835
Instruction Manual
HI 9835
Autoranging
Portable Waterproof
Microprocessor
EC/TDS/NaCl/°C Meter
Manufacturers since 1978
This Instrument is in
Compliance with the CE Directives
32
Remove the instrument from the packing material and examine it
carefully to make sure that no damage has occurred during shipping.
If there is any damage, notify your Dealer.
Each meter is supplied complete with:
• HI 76309 Conductivity/TDS probe
• AA size Alkaline Batteries (4 pcs)
• Instruction manual
• Rugged Carrying Case.
Note: Save all packing material until you are sure that the instrument
functions correctly. Any defective item must be returned in its
original packaging together with the supplied accessories.
HI 9835 is a waterproof portable microprocessor-based Conductivity/
TDS/NaCl/temperature meter.
The autoranging feature of the EC and TDS ranges automatically sets
the meter to the scale with the highest possible resolution.
The measurements are automatically (ATC) or manually (MTC) compen-
sated for temperature. The temperature coefficient value is user
selectable. It is possible to disable the temperature compensation and
measure the actual conductivity.
The meter is equipped with a stability indicator.
The Battery Error Preventing System (BEPS) switches the meter off
when the batteries are too weak to support proper function.
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
PRELIMINARY EXAMINATION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTION
Dear Customer,
Thank you for choosing a Hanna product.
Please read this instruction manual carefully before using the instru-
ment.
This manual will provide you with the necessary information for a
correct use of the instrument, as well as a precise idea of its versatility.
If you need additional technical information, do not hesitate to e-mail
us at tech@hannainst.com.
These instruments are in compliance with directives
EN 50081-1, EN 50082-1 and EN 61010-1.
PRELIMINARY EXAMINATION .............................................................. 3
GENERAL DESCRIPTION ...................................................................... 3
FUNCTIONAL DESCRIPTION .................................................................4
SPECIFICATIONS................................................................................ 5
CONNECTIONS .................................................................................. 6
TAKING MEASUREMENTS ................................................................... 7
AUTORANGING ..................................................................................8
TEMPERATURE COMPENSATION .......................................................... 8
EC / TDS CALIBRATION ...................................................................... 9
NaCl CALIBRATION .......................................................................... 10
TEMPERATURE CALIBRATION ............................................................ 11
TEMPERATURE ADJUSTMENT ............................................................ 11
CONDUCTIVITY VS. TEMPERATURE CHART ........................................... 12
SETUP ........................................................................................... 13
BATTERY REPLACEMENT ................................................................... 15
PROBE MAINTENANCE ..................................................................... 15
ACCESSORIES ................................................................................. 16
WARRANTY ..................................................................................... 18
CE DECLARATION OF CONFORMITY .................................................... 19
TABLE OF CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTS
All rights are reserved. Reproduction in whole or in part is prohibited
without the written consent of the copyright owner,
Hanna Instruments Inc., 584 Park East Drive, Woonsocket, Rhode
Island, 02895 , USA.
Visit our Internet Home Page:
http://www.hannainst.com
54
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
Range EC 0.00 to 29.99 µS/cm
(Autoranging) 30.0 to 299.9 µS/cm
300 to 2999 µS/cm
3.00 to 29.99 mS/cm
30.0 to 200.0 mS/cm
Up to 500.0 mS/cm actual
(*)
Conductivity
TDS 0.00 to 14.99 ppm
(Autoranging) 15.0 to 149.9 ppm
150 to 1499 ppm
1.50 to 14.99 g/L
15.0 to 100.0 g/L
Up to 400.0 g/L actual
(*)
TDS
(with 0.80 factor)
NaCl 0.0 to 400.0 %
Temp. 0.0 to 60.0 C
Resolution EC 0.01 µS/cm (from 0.00 to 29.99 µS/cm)
0.1 µS/cm (from 30.0 to 299.9 µS/cm)
1 µS/cm (from 300 to 2999 µS/cm)
0.01 mS/cm (from 3.00 to 29.99 mS/cm)
0.1 mS/cm (over 30.0 mS/cm)
TDS 0.01 ppm (from 0.00 to 14.99 ppm)
0.1 ppm (from 15.0 to 149.9 ppm)
1 ppm (from 150 to 1499 ppm)
0.01 g/L (from 1.50 to 14.99 g/L)
0.1 g/L (over 15.0 g/L)
NaCl 0.1 %
Temp. 0.1C
Accuracy EC ±1% of reading ± (0.05 µS/cm or 1 digit,
whichever greater)
TDS ±1% of reading ± (0.03 ppm or 1 digit,
whichever greater)
NaCl ±1% of reading
Temp. ±0.4C
Typical EMC EC ±1% of reading
Deviation TDS ±1% of reading
NaCl ±1% of reading
Temp. ±0.1 C
FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTION
1) Power adapter socket
2) Probe Connector
3) Liquid Crystal Display (LCD)
4) ON/OFF key, to turn the meter on and off
5) ALT key, to alternate key function
6) RANGE / FIXED key, to select measurement range or (with ALT)
to freeze the current range on the LCD
7) CAL / CALT key, to enter calibration mode
8) WCFM key, to move down or (with ALT) confirm values
9) ATC / TC key, to select temperature compensation mode or (with
ALT) to view the temperature coefficient value
10) VFNC key, to move up or (with ALT) enter setup mode
(*)
Actual conductivity (or TDS) is the non-temperature compensated conductivity (or
TDS) value of a solution.
76
EC Calibration 1 point with 6 memorized buffers
84,1413,5000,12880,80000,111800 µS/cm
NaCl Calibration 1 point with HI 7037 buffer (optional)
Temperature 2 points at 0 and 50C
Calibration (plus ±1C adjustment)
Temperature Automatic or Manual from 0 to 60C
Compensation (can be disabled to measure actual conductivity)
Temperature 0.00 to 6.00 %/C (for EC and TDS only)
Coefficient Default value is 1.90%/C
TDS Factor 0.40 to 0.80 (default value is 0.50)
Probe HI 76309 4-ring probe, K=1 nominal and
built-in temperature sensor (included)
Auto Off After 5 minutes (can be disabled)
Power supply 4x1.5V AA alkaline type batteries (included), or
12 VDC adapter
Casing IP 67
Environment 0 to 50C ; 100% RH
Dimensions 196 x 80 x 60 mm (7.7 x 3.1 x 2.4")
Weight 500 g (18 oz)
CONNECTIONSCONNECTIONS
CONNECTIONSCONNECTIONS
CONNECTIONS
Remove the back cover, unwrap the batteries
and install them while paying attention to
the polarity. Replace the back cover.
Alternatively, connect the voltage adapter to
the power socket.
Connect the EC/TDS probe to the
7-pin connector located on the top
of the instrument. Tighten the
threaded ring.
Make sure the probe sleeve is prop-
erly inserted, as shown in the figure.
Press the ON/OFF key to turn the meter on.
Immerse the probe into the solution to be tested.
The sleeve holes must be completely submerged.
Tap the probe repeatedly to remove any air bubbles
that may be trapped inside the sleeve.
If needed, press the RANGE key repeatedly until
the desired range (EC, TDS, NaCl) is selected on
the LCD.
Allow for the reading to stabilize. The upper
LCD displays the measure in the selected
range while the temperature is displayed on
the lower LCD.
Notes:
I If the meter displays "----" the reading is out of range.
II If the reading is unstable, the stability indicator " " blinks.
III The "gm" indication on the LCD means g/L.
IV Make sure the meter is calibrated before taking measurements.
V If measurements are taken successively in different samples, to
have accurate readings it is recommended to rinse the probe
thoroughly with deionized water before immersion in the samples.
VI To maximize battery life, the meter is automatically switched off
after 5 minutes of non-use. To reactivate the instrument press
the ON/OFF key. This feature can be disabled by entering the
setup mode and selecting the "AoF" item (see SETUP for de-
tails).
VII TDS reading is obtained multiplying the EC reading by the TDS
factor, which has a default value of 0.50. It is possible to
change the TDS factor in the 0.40 to 0.80 range by entering
the setup mode and selecting the "tdS" item (see SETUP for
details).
VIII When the use of an alternate function (FNC, CFM, GLP,FIXED,TC
and CALT) is requested, press and hold the ALT key first and
then the second key.
TAKING MEASUREMENTSTAKING MEASUREMENTS
TAKING MEASUREMENTSTAKING MEASUREMENTS
TAKING MEASUREMENTS
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