ADWA AD 3000 Manuel utilisateur

USER MANUAL

AD 3000

EC/TDS/Temperature

Bench Meter

www.adwainstruments.com

MANAD3000R3 06/09

ADWA INSTRUMENTS Kft.

Alsókikötõ sor 11, 6726 Szeged, Hungary

Tel. +36 62 317 878

Fax +36 62 550 610

e-mail: [email protected]

www.adwainstruments.com

Dear Customer,

Thank you for choosing an Adwa product. Please read

carefully this manual before starting operations. This

instrument is in compliance with the EMC Directive 89/

336/EEC and Low Voltage Directive 73/23/EEC for

electrical equipments. For more technical information,

please e-mail us at [email protected].

WARRANTY

Adwa warrants this product to be free of defects in material

and workmanship as stated in the operating manual. If repair

or adjustment is necessary and has not been the result of

abuse, misuse or improper handling within the warranty pe-

riod,pleasecontactyourdealerorthenearestAdwaOfficefor

the RGA (Return Goods Authorization) number to put on the

outsideofyourpackage.Warrantedservicewillbe made with-

out charge. The meter is warranted for a period of 2 years,

while probes are warranted for 6 months. The warranty pe-

riod commences from the original date of sale. Warranty is

only valid when the product is used under normal conditions

and in accordance with the instruction manual. The warranty

is void if the instrument is repaired or serviced by unautho-

rizedpersonnel,notusedinaccordancetothe instructions, or

if non-Adwa accessories such as buffer solutions, probes,

etc. are used in conjunction with the meter. Adwa will not be

held responsible for any accident whether directly or indi-

rectly, caused by the use of this instrument.

PROBES AND SOLUTIONS

A76309 Conductivity probe with built-in tem-

perature sensor and 1 m cable

A70031P 1413 µS/cm solution, 20 ml sachet, 25

pcs

A70030P 12.88 mS/cm solution, 20 ml sachet, 25

pcs

A70032P 1382 ppm solution, 20 ml sachet, 25 pcs

Introduction........................................................... 4

Technical Data ..................................................... 6

Front and Rear Panels .......................................... 8

Operational Guide ................................................10

Autoranging .........................................................13

Temperature Compensation ..................................14

EC Calibration .....................................................16

Temperature Adjustment ......................................21

Setup ...................................................................22

Good Laboratory Practice ....................................25

Log-on-demand ....................................................29

Hold ....................................................................33

Probe Maintenance ..............................................34

Probes and Solutions ............................................35

TABLE OF CONTENTS

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 non-abra-

sive detergent.

Make sure to reinsert the sleeve onto the probe properly

and in the right direction.

After cleaning the probe, recalibrate the instrument.

AD3000 is a bench microprocessor-based conductivity,

TDS and temperature meter.

The autoranging feature of the EC and TDS ranges

automatically sets the instrument to the scale with the

highest resolution.

Measurements are compensated for temperature ef-

fect automatically (ATC) or manually (MTC) with the

conductivity probe with built-in temperature sensor. It

is also possible to disable the temperature compensa-

tion and measure the actual conductivity.

The temperature coefficient is user selectable.

The instrument is equipped with a stability indicator, to

indicate when measurement is to be recorded.

AD3000 includes also GLP capability.

In addition, the meter allows the user to enter an ID

code to uniquely identify the instrument.

INTRODUCTION

Note: Press SHIFT+HOLD keys to escape without

deleting data.

If no samples are stored in memory and a dele-

tion is attempted, the meter shows the "Zero"

message and then returns to measurement mode.

To freeze the first stable reading on

the LCD, press the HOLD key from

measurement mode.

The "Auto" and " H" tags will blink on the LCD until the

reading is stabilized.

When the reading becomes stable, the "Auto" and "H"

tags stop blinking and the reading is frozen.

Press the HOLD key again to return the normal mea-

surement mode.

HOLD

This model is supplied complete with:

•A76309 conductivity probe with built-in temperature

sensor and 1 m cable

•Calibration solutions at 1413 µS/cm and 12.88 mS/cm

and 111.8 mS/cm (20 ml sachet each)

•12 Vdc power adapter

•Probe holder

•User manual

TO DELETE STORED DATA

The meter allows to delete a single sample or all the

memory at one time.

To delete a single sample proceed as follows:

•Enter the viewing stored data mode and select the de-

sired sample number.

•Press the HOLD key. "dEL" and

"CFM" will start blinking.

•Press CFM to confirm deletion.

Note: Press HOLD key again to escape without de-

leting data. When scrolling through stored data,

if a deleted sample is selected, the meter will

display the "nuLL" message.

To delete all data in memory:

•Enter the viewing stored data mode.

•Press SHIFT+HOLD keys. "dEL" and "CFM" will start

blinking and the "ALL" message is displayed on the

secondary LCD.

•Press CFM to confirm

deletion.

TECHNICAL DATA

Range 0.00 to 19.99 µS/cm; 0.00 to 9.99 ppm

20.0 to 199.9 µS/cm;

10.0 to 99.9 ppm 200

to 1999 µS/cm; 100 to 999 ppm 2.00

to 19.99 mS/cm; 1.00 to 9.99 ppt

20.0 to 199.9 mS/cm; 10.0 to 99.9 ppt

-9.9 to 120.0°C

Resolution 0.01, 0.1, 1 µS/cm; ppm

0.01, 0.1 mS/cm; ppt

0.1°C

Accuracy ±1% f.s. (EC/TDS)

(@20°C/68°F) ±0.5°C

EC Calibration Offset at 0.00 µS/cm;

Slope at 1 point

with 6 memorized values

(84.0, 1413 µS/cm; 5.00, 12.88, 80.0, 111.8 mS/cm)

or with custom value

Temperature Automatic or manual,

Compensation -9.9 to 120°C

Temperature Selectable

Coefficient from 0.00 to 10.00%/°C

TDS Factor Selectable from 0.40 to 1.00

(default value: 0.50)

•time

•EC or TDS reading

(only dashes "----" means

reading out of range or

probe not connected)

•Temperature reading

(only dashes "----" means

reading out of range)

•To skip to the next or previous sample, use the up or

down arrow keys respectively.

For example, if the up arrow key is pressed while a

sample reading is displayed, the meter shows the read-

ing of next sample.

•To return to normal measurement mode, press the

SHIFT+RECALL keys at any time.

Reference Temperature

Selectable from 15.0 to 30.0°C

Log-on-demand Up to 250 samples

Probe (included) A76309 EC probe

with built-in temperature sensor

Power Supply 12 Vdc power adapter

Environment 0 to 50°C

RH max 95% non-

condensing

Dimensions 230 x 180 x 50 mm

Weight 1.8 kg

TO VIEW STORED DATA

To retrieve the memorized infor-

mation, press SHIFT+RECALL

keys.

The primary LCD displays the date (day and month)

and the secondary LCD shows the last stored sample

number.

If no samples are stored into memory, the "ZERO" indi-

cation is displayed.

•Select the desired sample number using the arrow keys.

If the up arrow key is pressed while the last sample is

displayed, the meter returns to the first sample.

•Press RANGE to view the remain-

ing data for the selected sample in

the following order:

•year

Front Panel

Rear Panel

FRONT AND REAR PANEL

LOG-ON-DEMAND

To store the current reading into

memory, press STORE key while in

measurement mode.

The LCD will display for a few seconds the "Stor" mes-

sage together with the "LOG" tag and the sample num-

ber.

By pressing the STORE key a complete set of informa-

tion is memorized: date, time, EC, TDS and temperature

readings.

Up to 250 samples can be stored into memory.

When the memory is full and

the STORE key is pressed,

the sample will not be stored

and the LCD will display the

"FULL" message.

In this case, it is necessary to delete all data from memory

to proceed.

1. Liquid Crystal Display (LCD)

2. STORE/RECALLkey, to store measurements and

recall stored data

3. CFM key, to confirm values

4. CAL key, to enter/exit calibration mode

5. Up arrow key, to manually increase the value of

temperature or other parameters

6. Down arrowkey, to manually decrease the value of

temperature or other parameters

7. SHIFT key, to activate the key alternate function.

Press and hold first the SHIFT key and then the

second desired key

8. SETUP key, to enter/exit setup mode

9. RANGE/”lock” key, to select measurement unit

or switch the focused data, and to freeze current

range on the LCD

10. ON/OFF key, to turn the instrument ON and OFF

11. HOLD/GLP key, to freeze the first stable reading

on the LCD and to display Good Laboratory Prac-

tice information

12. Power supply socket

13. Probe connector

If RANGE is pressed when the last parameter is dis-

played, the meter returns to measurement mode.

Notes:

•To exit GLP mode at any time press SHIFT+GLP keys.

•If the calibration procedure was never performed, af-

ter displaying the ID code, the LCD will show the "no

CAL" message blinking. Press RANGE or

SHIFT+GLP keys to return to measurement mode.

•Last calibration data is available for EC range only.

No calibration data can be recalled for TDS. If the

meter is in TDS mode, by pressing SHIFT+GLP keys

only the ID code is shown. Press SHIFT+GLP keys

again to return to measurement mode.

•The meter is provided with an internal lithium battery

that allows to correctly update date and time even if

the power supply is disconnected.

•GLP data are not affected by the zero calibration.

CONNECTIONS

•Plug the 12 Vdc adapter into the power supply socket.

Note: These instruments use non volatile memory to

retain the calibration parameters and all other

settings even when unplugged.

•Connect the probe to the 7-pin connector. Tighten the

threaded ring and make sure the probe sleeve is prop-

erly inserted, as shown below:

INSTRUMENT START-UP

•Turn the instrument on by pressing

the ON/OFF button.

•All LCD tags are displayed and a

beep is generated while the instru-

ment performs a self test.

OPERATIONAL GUIDE

Cell constant value (K):

If standard calibration solution was used:

If custom calibration solution was used:

If the cell constant was changed after calibration (through

the "CELL" setup function), this information is not dis-

played.

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