Hanna Instruments HI 9835 Manual de usuario

Instruction Manual

HI 9835

Waterproof

EC/TDS/NaCl/°C Meter

for Lab and Field

99 Washington Street

Melrose, MA 02176

Phone 781-665-1400

Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

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 probe with 1 m (3.3') cable

•Batteries (4 x 1.5V AA alkaline)

•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 portable microprocessor-based EC/TDS/NaCl/temperature

meter. The autoranging feature of the EC and TDS ranges automati-

cally 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 as well as the TDS conversion factor.

The temperature compensation can also be disabled to measure the

actual conductivity.

The housing is completely waterproof and built to stand the harsh

conditions of field use.

For extended time operations, this meter can be connected to an

external 12 Vdc power supply.

PRELIMINARY EXAMINATION

GENERAL DESCRIPTION

Dear Customer,

Thank you for choosing a HANNA instruments® product.

Please read this instruction manual carefully before using the instru-

ment.

This manual will provide you with the necessary information for correct

use of the instrument, as well as a precise idea of its versatility.

This instrument is in compliance with the directives.

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 CONTENTS

All rights are reserved. Reproduction in whole or in part is prohibited

without the written consent of the copyright owner.

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 (0.00 to 29.99 μS/cm)

0.1 μS/cm (30.0 to 299.9 μS/cm)

1 μS/cm (300 to 2999 μS/cm)

0.01 mS/cm (3.00 to 29.99 mS/cm)

0.1 mS/cm (over 30.0 mS/cm)

TDS 0.01 ppm (0.00 to 14.99 ppm)

0.1 ppm (15.0 to 149.9 ppm)

1 ppm (150 to 1499 ppm)

0.01 g/L (1.50 to 14.99 g/L)

0.1 g/L (over 15.0 g/L)

NaCl 0.1 %

Temp. 0.1°C

Accuracy EC ±1% of reading ± (0.05 μS/cm or 1 digit)

TDS ±1% of reading ± (0.03 ppm or 1 digit)

NaCl ±1% of reading

Temp. ±0.4°C

Typical EMC EC ±1% of reading

Deviation TDS ±1% of reading

NaCl ±1% of reading

Temp. ±0.1 °C

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 activate alternate key function

6) RANGE/FIXED key, to select measurement range or (with ALT)

freeze the current range on the LCD

7) CAL/CALT key, to enter calibration mode

8) ▼CFM key, to move down or (with ALT) confirm values

9) ATC/TC key, to select temperature compensation mode or (with

ALT) view the temperature coefficient value

10) ▲FNC key, to move up or (with ALT) enter setup mode (*) Actual conductivity (or TDS) is the conductivity (or TDS) value of a solution

without temperature compensation.

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 point, at 0 and 50°C

Calibration (plus ±1°C adjustment)

Temperature Automatic or Manual from 0 to 60°C

Compensation (can be disabled to measure actual conductivity)

Temperature Adjustable from 0.00 to 6.00 %/°C (EC and

Coefficient TDS only); default value is 1.90%/°C

TDS Factor Adjustable from 0.40 to 0.80 (default 0.50)

Probe HI 76309 4-ring probe with K=1 (nominal)

and built-in temperature sensor (included)

Auto-off After 5 minutes of non-use (can be disabled)

Power supply 4x1.5V AA alkaline type batteries (included),

or 12 Vdc adapter

Casing IP 67

Environment 0 to 50°C (32 to 122°F); RH max 100%

Dimensions 196 x 80 x 60 mm (7.7 x 3.1 x 2.4")

Weight 500 g (1.1 lb.)

CONNECTIONS

Remove the back cover, unwrap the batter-

ies and install them while paying attention

to the polarity. Replace the back cover.

Alternatively, connect the voltage adapter to

the power socket.

Connect the conductivity probe to

the DIN 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 or 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:

IIf 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.

VIf measurements are taken successively in different samples, it

is recommended to rinse the probe thoroughly with deionized

water before immersion in the samples.

VI To maximize battery life, the meter automatically switches off after 5

minutes of non-use. To reactivate the instrument press ON/OFF.

This feature can be disabled by entering the setup mode and

selecting the "AoF" item (see "Setup" section for details).

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"

section 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 MEASUREMENTS

EC/TDS CALIBRATION

EC/TDS calibration is a single point procedure. Selectable calibration

points are: 0.0, 84.0 μS/cm, 1413 μS/cm, 5.00 mS/cm, 12.88

mS/cm, 80.0 mS/cm,111.8 mS/cm.

To enter EC calibration, select the EC range and

press the CAL key.

Note: TDS reading is automatically derived from the EC reading and

no specific calibration for TDS is needed. Pressing CAL while TDS

range is selected has no effect.

Rinse the probe with some of the calibration solution or

deionized water. Immerse the probe into the solution.

The sleeve holes must be completely submerged. Tap

the probe repeatedly to remove any air bubbles that

may be trapped inside the sleeve.

For zero calibration, just leave the dry probe in air.

The indications "BUF" and "CAL" are dis-

played. The upper LCD shows the uncalibrated

EC reading. The lower LCD shows the buffer

value. The stability indicator " " blinks.

Select the desired value with the ▲

and ▼keys, if necessary.

When the " " symbol stops blinking, the

reading is stable. The "CON" indication starts

blinking on the LCD asking for confirmation.

Press ALT + CFM to confirm the calibration.

If everything is satisfactory, the meter displays the "Stor Good"

message and returns to measurement mode.

Notes

IIf the uncalibrated reading is too far from the expected value,

calibration is not recognized. The "CON" indication does not

appear; the " " and "BUF" symbols blink to warn the user.

II For best results choose a calibration solution with an EC value

as close as possible to the sample to be measured.

TEMPERATURE COMPENSATION

Three options of compensating temperature are available:

Automatic (Atc): The probe has a built-in temperature sensor; the

value of the temperature is used to automatically compensate the EC/

TDS reading using 25°C as reference temperature. This is the default

option.

Manual (Mtc): The temperature value, shown on the lower LCD, can

be manually set by the user with the up and down arrow keys. The

compensation is referenced at 25°C. The "°C" symbol blinks when this

option is active.

No Compensation (notc): The temperature reading shown on the

lower LCD is not taken into account. The reading displayed on the

upper LCD is the actual EC or TDS value. The "°C" and "%TC" symbols

blink when this option is active.

To select the desired option press the ATC key until

the option is briefly displayed on the LCD.

Note: The default compensation mode is ATC.

If temperature compensation is active, measurements are compen-

sated using a default temperature coefficient of 1.90 %/°C.

It is possible to select a different temperature coefficient (TC) in the

0.00 to 6.00 %/°C range by entering the setup mode and selecting

the "tc" item (see SETUP for details).

The current temperature coefficient can be

quickly viewed pressing ALT+TC. The value

is briefly displayed on the lower LCD.

The EC and TDS scales are autoranging. The meter automatically sets

the scale with the highest possible resolution.

By pressing ALT+FIXED, the autoranging

feature is disabled and the current range

is frozen on the LCD. "F1" symbol blinks

on the LCD.

To restore the autoranging option press ALT+FIXED again.

Note: Autoranging is automatically restored if the RANGE key is pressed,

if the setup or calibration modes are entered and if the meter is

turned off and back on again.

AUTORANGING

1110

TEMPERATURE CALIBRATION

(for technical personnel only)

The temperature calibration is a 2 point procedure, at 0 and 50°C.

• Immerse the probe in a 0°C temperature bath.

• Press ALT+CALT to enter temperature calibration mode.

• The lower LCD displays "0.0 °C"; "BUF" and "CAL" tags appear.

• When the reading is stable, "CON" symbol starts blinking.

• Press ALT+CFM to confirm. The lower LCD displays "50.0°C".

• Immerse the probe in a 50°C temperature bath.

• When the reading is stable, "CON" symbol starts blinking.

• Press ALT+CFM to confirm and return to normal operation.

TEMPERATURE ADJUSTMENT

The temperature reading can be manually fine-tuned by following this

procedure:

Press ALT+CALT to enter the temperature

calibration mode.

Press CAL to enter the temperature adjust-

ment mode. The upper and lower LCD will

display the current temperature reading.

Adjust the temperature reading on

the upper LCD using the arrow keys.

The maximum adjustment is ±1°C

around current reading.

Press ALT+CFM to confirm. The meter re-

turns to measurement mode and displays

the new temperature.

Note: Press ALT+CALT to escape without any changes.

Note: It is possible to enter the temperature adjustment mode only if

the probe is connected.

NaCl CALIBRATION

NaCl calibration is a single point procedure at 100.0% NaCl.

Use the HI 7037 calibration solution (sea water solution) as 100%

NaCl standard.

To enter NaCl calibration select the NaCl range and

press the CAL key.

Rinse the probe with some of the calibration solu-

tion or deionized water, then immerse it in HI 7037

solution. The sleeve holes must be completely sub-

merged. Tap the probe repeatedly to remove any

air bubbles that may be trapped inside the sleeve.

The "BUF" and "CAL" indications are dis-

played. The upper LCD shows the uncalibrated

NaCl reading in percentage. The lower LCD

shows "100".

When the " " symbol stops blinking, the

reading is stable. The "CON" indication starts

blinking on the LCD asking for confirmation.

Press ALT + CFM to confirm the calibration.

If everything is satisfactory, the meter displays the "Stor Good"

message and returns to measurement mode.

Note: If the uncalibrated reading is too far from the expected value,

the calibration is not recognized. The "CON" indication does not

appear; the " " and "BUF" symbols blink to warn the user.

Note: The meter uses 1.90%/°C compensation factor during calibra-

tion. If the setup item "tc" has been set to a different value,

when exiting calibration mode the value displayed on the upper

LCD could be different from the nominal calibration value.

III Use plastic beakers to minimize any EMC interference.

IV The meter uses 1.90%/°C compensation factor during calibra-

tion. If the setup item "tc" has been set to a different value,

when exiting the calibration mode the value displayed on the

upper LCD could be different from the solution nominal value.

VIt is possible to set the cell constant value directly without

following the calibration procedure. Enter the setup mode and

select "CEL" (see "Setup" section for details).

1312

The setup mode is used to view or change the instrument parameters.

To enter setup press ALT+FNC when the

meter is in measurement mode.

"Set" is displayed on the upper LCD. The

lower LCD displays the blinking code of the

current setup item.

Select the desired setup item using

the ▲or ▼key.

Press ALT+CFM to confirm.

Note: If ALT+FNC are pressed before item confirmation, the meter

will escape and return to measurement mode.

Once the desired setup item has been

selected, its current value blinks (if it is a

changeable parameter).

To change the value use the ▲or

▼key.

Press ALT+CFM to confirm.

Note: Press ALT+FNC before confirmation to escape without chang-

ing the previously set value.

SETUP

The conductivity of an aqueous solution is the measure of its ability to

carry an electrical current by means of ionic motion.

The conductivity invariably increases with increasing temperature.

It is affected by the type and number of ions in the solution and by

the viscosity of the solution itself. Both parameters are temperature

dependent. The dependency of conductivity on temperature is ex-

pressed as a relative change per degree Celsius at a particular

temperature, commonly as percent per °C.

The following table lists the temperature dependence of the HANNA

instruments®calibration solutions.

°C °F HI 7030 HI 7031 HI 7033 HI 7034 HI 7035 HI 7039

HI 8030 HI 8031 HI 8033 HI 8034 HI 8035 HI 8039

(μS/cm) (μS/cm) (μS/cm) (μS/cm) (μS/cm) (μS/cm)

0 32 7150 776 64 48300 65400 2760

5 41 8220 896 65 53500 74100 3180

10 50 9330 1020 67 59600 83200 3615

15 59 10480 1147 68 65400 92500 4063

16 60.8 10720 1173 70 67200 94400 4155

17 62.6 10950 1199 71 68500 96300 4245

18 64.4 11190 1225 73 69800 98200 4337

19 66.2 11430 1251 74 71300 100200 4429

20 68 11670 1278 76 72400 102100 4523

21 69.8 11910 1305 78 74000 104000 4617

22 71.6 12150 1332 79 75200 105900 4711

23 73.4 12390 1359 81 76500 107900 4805

24 75.2 12640 1386 82 78300 109800 4902

25 77 12880 1413 84 80000 111800 5000

26 78.8 13130 1440 86 81300 113800 5096

27 80.6 13370 1467 87 83000 115700 5190

28 82.4 13620 1494 89 84900 117700 5286

29 84.2 13870 1521 90 86300 119700 5383

30 86 14120 1548 92 88200 121800 5479

31 87.8 14370 1575 94 90000 123900 5575

CONDUCTIVITY VS TEMPERATURE CHART

1514

PROBE MAINTENANCE

After measurements, rinse the probe with clean water. If a more

thorough cleaning is required, remove the probe sleeve and clean the

probe with a cloth or a nonabrasive detergent.

Make sure to reinsert the sleeve onto the probe properly and in the

right direction.

After cleaning the probe, recalibrate the instrument.

When the batteries are inserted and no power adapter is connected,

the meter can recognize the following battery charge levels:

•Low battery - "LOBAT" indication is displayed on the LCD.

Backlight is automatically disabled and it is not possible to

enable it until new batteries are inserted or an external power

adapter is used. When "LOBAT" appears, batteries have typically

10% of their life left and the meter is still measuring properly.

•Very weak battery - The meter shuts off to avoid erroneous

operations.

Note: If the meter is not powered for several minutes (e.g. in dead

battery condition), the current date and time are lost.

Battery replacement must only take place in a safe area and using

1.5V alkaline AA type batteries.

In order to replace run down batteries, simply

remove the two screws on the rear cover of the

instrument and replace the four 1.5V AA bat-

teries with new ones, paying attention to the

correct polarity.

New batteries allow approximately 150 hours of continuous use.

A 12 Vdc power adapter can also be used.

It is recommended to use the HANNA volt-

age adapters that provide the proper polarity

configuration.

However, other adapters can be used. In this case, check the polarity

of the adapter before connecting it to the meter.

BATTERY REPLACEMENT

The following table lists the setup items, their valid range of values

and the factory settings (default):

Item Description Valid values Default

tc Temp. compensation coeff. 0.00 to 6.00 %/°C 1.90

tcE Temp. compensation mode Atc, Mtc, notc Atc

tdS TDS factor 0.40 to 0.80 0.50

CEL Cell constant (K) 0.500 to 1.700 1.000

Aof Auto-off enable On, OFF On

vEr Firmware release

Chr Battery level test

Notes

IOnce enabled, the Auto-off time is fixed at 5 minutes.

II When the battery level test is selected (Chr), the LCD will display

the remaining percentage of battery charge. 100% means fully

charged battery and 0% corresponds to the minimum battery

level that allows the meter to operate.

The battery charge level calculation is based on a typical

alkaline battery discharge curve.

If the meter is connected to an external power adapter and

"Chr" is selected, the LCD will display "LINE".

1716

OTHER ACCESSORIES

HI 76309 Stainless steel 4-ring conductivity probe with built-

in temperature sensor and 1 m (3.3') cable.

HI 76310 Platinum 4-ring conductivity probe with built-in

temperature sensor and 1 m (3.3') cable.

HI 710005 12 Vdc voltage adapter, US plug

HI 710006 12 Vdc voltage adapter, European plug

HI 710012 12 Vdc voltage adapter, UK plug

HI 710013 12 Vdc voltage adapter, South-african plug

HI 710014 12 Vdc voltage adapter, Australian plug

HI 740036 100 mL plastic beaker (6 pcs)

HI 740034 Cap for 100 mL beaker (6 pcs)

HI 76405 Electrode holder

CONDUCTIVITY CALIBRATION SOLUTIONS

HI 70030P 12880 μS/cm solution, 20 mL sachet (25 pcs.)

HI 7030L 12880 μS/cm solution, 500 mL bottle

HI 7030M 12880 μS/cm solution, 230 mL bottle

HI 70031P 1413 μS/cm solution, 20 mL sachet (25 pcs.)

HI 7031L 1413 μS/cm solution, 500 mL bottle

HI 7031M 1413 μS/cm solution, 230 mL bottle

HI 70033P 84 μS/cm solution, 20 mL sachet (25 pcs.)

HI 7033L 84 μS/cm solution, 500 mL bottle

HI 7033M 84 μS/cm solution, 230 mL bottle

HI 7034L 80000 μS/cm solution, 500 mL bottle

HI 7034M 80000 μS/cm solution, 230 mL bottle

HI 7035L 111800 μS/cm solution, 500 mL bottle

HI 7035M 111800 μS/cm solution, 230 mL bottle

HI 70039P 5000 μS/cm solution, 20 mL sachet (25 pcs.)

HI 7039L 5000 μS/cm solution, 500 mL bottle

HI 7039M 5000 μS/cm solution, 230 mL bottle

HI 7037L 100% NaCl standard solution, 500 mL bottle

PROBE CLEANING SOLUTIONS

HI 7061M General cleaning solution, 230 mL bottle

HI 7061L General cleaning solution, 500 mL bottle

ACCESSORIES

1918

WARRANTY

All Hanna Instruments meters are warranted for two years

against defects in workmanship and materials when used for their

intended purpose and maintained according to instructions. The

electrodes and the probes are warranted for a period of 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 number from the Customer

Service department and then send it with shipping costs prepaid.

When shipping any instrument, make sure it is properly packaged for

complete protection.

Hanna Instruments reserves the right to modify the design, construction and

appearance of its products without advance notice.

Recommendations for Users

Before using this product, make sure that it is entirely suitable for the environment in which it is used.

Operation of this instrument in residential area could cause unacceptable interference to radio and TV

equipment, requiring the operator to take all necessary steps to correct interference.

The metal bands of the probe are sensitive to electrostatic discharges. Avoid touching these metal bands

at all times.

To maintain the EMC performance of this equipment the recommended cables must be used.

Any variation introduced by the user to the supplied equipment may degrade the instruments EMC

performance.

Toavoid electricalshock, do not use this instrument when voltage at the measurement surface exceeds 24

Vac or 60 Vdc.

To avoid damages or burns, do not perform any measurement in microwave ovens.

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com

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