Fisher Scientific accumet AB40 User manual

TABLE OF CONTENTS
1. INTRODUCTION 1
2. UNPACKING THE METER 2
3. GETTING STARTED 3
3.1. Connectors 3
4. USING THE METER 4
4.1. The Electrode 4
4.2. Display/ Keys 5
4.3. Screen Display 6
5. SETUP PROCEDURE CHECK 7
5.1. Using Setup 7
5.1.1. Setup Page 1: View last calibration factor 10
5.1.2. Setup page 2: Select % Sat Mode 12
5.1.3. Setup Page 3: Set the mg/L mode 13
5.1.4. Setup Page 4: Set the Pressure 14
5.1.5. Setup Page 5: Set the Salinity Value 16
5.1.6. Setup Page 6: Select Number of User Cal Points for 17
% Sat calibration 17
5.1.7. Setup Page 7: Enable/ Disable Auto Cal 19
5.1.8. Setup Page 8: Select the Temperature Unit 21
5.1.9. Setup Page 9: Enable/ Disable Stability Indicator 22
5.1.10. Setup Page 10: Clear the Calibrated Buffers 24
6. USER CALIBRATION 25
6.1. %Sat- One Point Calibration (Auto) 25
6.2. %Sat – Two Point Calibration (Auto) 26
6.3. %Sat- One Point Calibration (Manual) 27
6.4. mg/L- One Point Calibration (Auto) 28
6.5. mg/L One Point Calibration (Manual) 29
6.6. ATC Calibration 30
7. DO THEORY 31
8. METER SPECIFICATIONS 32
9. CLEANING 33
10.TROUBLESHOOTING 33
11.SETTING THE BAROMETRIC PRESSURE 34
12.WARRANTY 35
13.NOTICE OF COMPLIANCE 36
14.REPLACEMENT PARTS AND ACCESSORIES 37

1
1. INTRODUCTION
Thank you for selecting a Fisher Scientific Accumet Dissolved
Oxygen 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 meter is designed to provide all the information necessary to
guide the user through the process of measuring DO with a series of
prompts on the screen.
The Accumet BASIC AB40 provides microprocessor precision in a
compact bench top design that’s easy to use. Five function keys
control all procedures, letting you:
•Set the barometric pressure
•Set the salinity value of the sample
•Read DO in mg/L or % Saturation
It all adds up to rapid, completely automatic, intuitive operation.
)
You will find this symbol appearing in this manual; it indicates useful
tips that ease your meter operation.

2
2. UNPACKING THE METER
The following is a listing of what you should have received with your
new Accumet AB40 Dissolved Oxygen meter:
Meter with kit includes:
•meter
•power supply
•BOD probe
•membrane kit
•Instruction manual
Meter only includes:
•meter
•power supply
•Instruction manual
If any of these items are missing, please contact the Fisher Lab
Equipment Group Electrochemistry Division by dialing 1888-358-
4706.
Accessories are available and can be ordered by calling Fisher
Scientific Customer Service at 1888-358-4706.
BOD probe: 13-620-SSP
Membrane kit: 13-637-DOM

3
3. GETTING STARTED
3.1. Connectors
1. Review the layout and arrangement of the rear connector panel.
2. Connect the power adapter’s output power jack to the meter’s
rear panel DC input power socket and plug in the adapter to a
power source.

4
4. USING THE METER
4.1. The Electrode
This meter comes equipped with a self-stirring BOD probe, model
5010, from YSI. Read the accompanying manual prior to installation
and operation. The 5010 probe need be plugged into the meter only,
as the meter supplies both its operation power and stirring power.
1. Prepare the electrode as described in its instruction manual.
2. Plug the electrode into the DO socket located at the rear panel of
the meter.
3. Place the probe into a BOD bottle filled with at least 1 inch of
water. Allow the probe to warm up for 30 minutes before
calibration or taking a measurement.

5
% Sat

4.2. 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
Standardization mode to
confirm the standardization
and return to measurement
mode.
Press to adjust values/
selection.
Press setup key to access
setup for configuration of meter
settings.
Press enter key to confirm
selection or change being
made.
Press stdby key to start up or
put the meter in standby mode
Meter Display: AB 40

6
4.3. Screen Display
Familiarize yourself with the layout of the digital screen display.

7
5. SETUP PROCEDURE CHECK
5.1. Using Setup
Setup allows you to set the operating parameters of the meter to
meet your requirements. There are two ways to access setup, and
the parameters that you can set will be different depending on how
you accessed setup. Determine which access route you need to
utilize from the chart below:
To set the following parameter Access Setup from the following screen
View the last calibration factor
From the Measurement Mode Screen
Select the type of measurement
unit you wish to measure dissolved
oxygen in %Sat, mg/L and
associated units.
From the Measurement Mode Screen
Select the pressure value From the Measurement Mode Screen
Select the salinity value
From the Measurement Mode Screen
Select the number of Calibration
Points (For %Sat mode only)
From the Measurement Mode Screen
Enable/ Disable Auto Calibration
From the Measurement Mode Screen
Select Temperature units
From the Measurement Mode Screen
Enable/ Disable Stability Indicator
From the Measurement Mode Screen
Clear Standardization
From the Measurement Mode Screen

8
std

stdby
enter
setup
The setup button is in essence a scroll key which allows you to
change several operating parameters. While in the setup mode you
may:
Press std to exit from setup to measure screen
without making change.
Press to set values within each setup option.
Press setup to scroll to the next parameter to view
or change.
Press enter to accept the displayed parameter. The
meter will then return to the measurement mode.
Press stdby to return to the standby mode without
making a change. Pressing standby again will place
the meter in the Measure mode.