Fisher Scientific Accumet BASIC AB 15 Manuale utente

TABLE OF CONTENTS

1INTRODUCTION 1

2GETTING STARTED 2

2.1 Connectors 2

3USING THE METER 4

3.1 Electrodes 4

3.2 Display/ Keys 6

3.3 Screen Display 8

4pH OPERATION 9

4.1 Using Setup 9

4.1.1 View pH Electrode Slope 12

4.1.2 Clear pH Standardization 13

4.1.3 pH Buffer Group 14

4.1.4 Temperature Unit 15

4.1.5 Set pH Resolution 16

4.1.6 Stability Indicator (Only available in AB15+) 17

4.1.7 Baud Rate (Only available in AB15+) 19

4.1.8 Parity Bit (Only availble in AB15+) 21

4.1.9 Stop Bit (Only available in AB15+) 23

4.1.10 Print Current & Stored Data/ Clear Stored Data (Only available in AB15+) 25

4.1.11 Clear Stored Data (Only available in AB15+) 27

5STANDARDIZATION 29

5.1 Standardization Procedure 29

5.2 pH Electrode Diagnosis Indicator 33

5.3 Standardizing with buffers from different buffer sets 34

6MEASUREMENT 36

6.1 Measurement Procedure 36

7mV OR RELATIVE mV OPERATION 38

7.1 Absolute mV 38

7.2 Relative mV 39

7.3 Temperature Calibration (Only available in AB15+) 40

8MEMORY (Only available in AB15+) 41

8.1 Store Value Into Memory 41

8.2 Recall Value From Memory 42

9PRINT DATA (Only available in AB15+) 44

9.1 Printing Data 44

10 pH THEORY 45

10.1 Measuring pH 46

11 CLEANING 47

12 TROUBLE-SHOOTING 47

13 METER SPECIFICATIONS 48

14 WARRANTY 49

15 NOTICE OF COMPLIANCE 50

16 REPLACEMENT PARTS 51

16.1 Replacement parts 51

16.2 Accessories 51

16.3 pH Buffers and Solutions 52

1 INTRODUCTION

Thank you for selecting the Accumet AB 15/ 15+ bench-top meter.

This instruction manual describes the operation of the meter. The

state-of-art meter that you have purchased is easy to operate and will

guide you through the various functions by displaying easy to

understand prompts.

This instruction manual is designed to provide all the information

necessary to guide you through the process of measuring pH or mV

with a series of prompts on the screen.

)

You will find this symbol appearing in this manual; it indicates useful

tips that ease your meter operation.

The Accumet AB 15/ 15+ meter provides microprocessor precision in

a compact benchtop design that is easy to use. This meter allows you:

Measure pH, absolute mV , relative mV or temperature

Select one of three sets of standard buffer groups

Standardize with up to five/ six buffers

It all adds up to rapid, completely automatic, intuitive operation.

2 GETTING STARTED

2.1 Connectors

1. Review the layout and arrangement of the rear connector panel.

2. Connect the electrode arm to the base.

3. Connect the power cable to the connector cable to the rear

connector panel power jack and to a power source.

3 USING THE METER

3.1 Electrodes

This meter allows you to use two types of pH electrodes: the

conventional glass pH electrode and the field effect transistor (FET)

electrode. If both types of electrodes are connected, the meter will

read the FET electrode.

1. Carefully remove the protective

cover from the end of the electrode.

Before first using your glass pH

electrode, soak it 2-4 hours in an

electrode storage solution, pH 4

buffer, or KCI solution.

2. Remove the shorting cap on BNC connector. Connect the

combination pH electrode in to the BNC input connector.

If a combination electrode isn’t used, connect the indicating pH

electrode into the BNC input connector. Plug the reference

electrode into the reference pin jack. Also, install the ATC probe

into the ATC jack.

Note: be sure to connect all probes to the appropriate channel

connectors (for example: Input 1, Ref 1 and ATC1).

Option: Connect the optional FET electrode by plugging it into

the FET jack on the back meter panel. Allow the FET electrode to

warm up five minutes before use.

3. Rinse and blot-dry (don’t wipe)

electrodes between each

measurement. Rinse electrodes

with distilled or deionized water,

or a portion of the next solution

to be measured.

4. Between measurements, store

conventional pH electrodes

storage solution, pH 4 buffer, or

KCI solution. Always leave the

filling hole of liquid filled

combination electrodes open.

Refill when the level of

solution gets below the

manufacturer’s recommended

level.

)

Proper electrode care is fundamental to obtaining reliable pH

measurements. Improper care of the electrode may cause the

meter reading to drift, respond slowly, or produce erroneous

readings. For this reason, the electrode should always be

conditioned and used in accordance with manufacturer’s

instructions.

3.2 Display/ Keys

Overview of the meter screen display and function key layout.

Press std key to initiate

standardization from measure

mode. Or press std key at the

Standardize mode to confirm

the standardization and return

to Measure mode.

Press mode to select pH, mV

and Relative mV.

Press setup key to access

setup for configuration of meter

setting.

Press print key to print stored

data from memory or current

reading to a PC or printer

(depending on meter setup).

Press enter key to confirm

selection or change being

made.

Press save/ ▲key to

increment value or scroll up

selection.

Press view/ ▼key to

decrement value or scroll down

selection.

Press save/ ▲key to store

displayed data into memory

Press view/ ▼key to recall

and select memory location of

stored data

Press stdby key to start up or

put the meter in standby mode.

Meter Display: AB15+

)

save/ ▲and view/ ▼keys perform different functions whilst in

different modes. These keys are only available in Accumet AB15+.

Meter Display: AB15

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