Fisher Scientific accumet AB200 User manual

Instruction Manual
Fisher Scientific
accumet®Basic (AB)
Benchtop Meters
AB150 ●AB200 ●AB250
68X613601 Rev 0 Jul
y
201
2

1
Table of Contents
1. Introduction................................................................................................................ 3
2. Keypad & Display....................................................................................................... 4
Connections: ............................................................................................................................... 6
3. System Setup & Configuration................................................................................. 7
STABILITY .................................................................................................................................. 7
EXPORT DATA........................................................................................................................... 7
DATE & TIME.............................................................................................................................. 8
PASSWORD ............................................................................................................................... 8
FACT RESET.............................................................................................................................. 9
CONTRAST................................................................................................................................. 9
STIRRER..................................................................................................................................... 9
SAMPLE ID ................................................................................................................................. 9
LANGUAGE ................................................................................................................................ 9
BEEP........................................................................................................................................... 9
4. Setup pH & mV........................................................................................................... 10
BUFFER (pH Only) ..................................................................................................................... 10
RESOLUTION (pH Only) ............................................................................................................ 10
ALARM........................................................................................................................................ 10
STD DUE (pH Only) .................................................................................................................... 10
5. pH Standardization (With Preset Buffer Group)...................................................... 11
6. pH Standardization (With Custom Buffers)............................................................. 12
7. mV Standardization (Offset Adjustment)................................................................. 13
8. Temperature Setup .................................................................................................... 13
9. Temperature Standardization ................................................................................... 14
10. Conductivity, TDS, Salinity, & Resistivity Setup..................................................... 15
STD METHOD (Conductivity Mode Only)................................................................................... 15
STD POINTS............................................................................................................................... 15
PURE WAT COEF (Pure Water Coefficient) .............................................................................. 16
TEMP COEFFICIENT (Linear).................................................................................................... 16
NORMALIZATION TEMPERATURE (ºC) ................................................................................... 16
TDS FACTOR (TDS Mode Only) ................................................................................................ 16
CELL CONST (Cell Constant)..................................................................................................... 16
ALARM........................................................................................................................................ 17
STD DUE..................................................................................................................................... 17

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11. Conductivity Standardization (Automatic) .............................................................. 17
12. Cond/TDS/Salinity/Resistivity Standardization (Manual Adjustment) .................. 18
13. Ion Setup..................................................................................................................... 20
MEASURE UNIT ......................................................................................................................... 20
ALARM........................................................................................................................................ 20
STD DUE..................................................................................................................................... 20
STANDARDS .............................................................................................................................. 20
14. Ion Standardization.................................................................................................... 21
15. Viewing, Transferring, and Printing Data ................................................................ 22
16. Standardization Report ............................................................................................. 23
17. Troubleshooting......................................................................................................... 24
18. USB Driver & Boot Loader Documentation............................................................. 25
19. Specifications............................................................................................................. 37
20. Replacements and Accessories............................................................................... 40
21. Warranty ..................................................................................................................... 42
22. Return of Items........................................................................................................... 42
23. Notice of Compliance ................................................................................................ 43
24. Declaration of Conformity......................................................................................... 44

3
1. Introduction
Thank you for selecting the Fisher Scientific accumet AB series benchtop meter.
All models include an electrode arm with metal bracket (13-637-671), 110/220
universal power supply (13-636-104), RS-232, and USB cable. The electrode arm
can be attached to the left, right, or center of the meter according to your
preference using a Phillips screwdriver.
13-637-671 13-636-104
The AB150 replaces the AB15 and AB15Plus series while the AB200 and AB250
are new introductions to the product line.
Please note that this manual serves three models, so not all sections of the
manual are relevant to each model. The chart below lists the parameters served
for the various models:

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2. Keypad & Display
FIXED KEY DESCRIPTION
STD to initialize and complete standardization (calibration) of
displayed parameter
MODE to toggle between available measurement modes
SETUP to enter Setup mode; use to change system settings or
measurement parameters
PRINT / ENTER to print, also to confirm selection during setup
SAVE / ▲to record into memory without printing, also increment
VIEW / ▼to examine saved data, also decrement
STIRRER to turn 13-620-BSP stirrer (optional separately) on / off
POWER / BACKLIGHT to adjust backlight brightness, also hold >3 seconds to power off
SOFT KEY DESCRIPTION
HELP to view screen specific assistance
DISPLAY to toggle between available display types
REPORT to examine current standardization data such as slope
TEMP STD to initialize temperature standardization (calibration)
ACCEPT to accept existing values
CLEAR to erase existing values
BACK to return to previous screen
ESC to escape or cancel from the current display

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USB port is active.
RS-232 port is active.
Stable Based on the stability speed selected, instrument has detected a
stable reading.
Data was sent to the printer; either manually by pressing PRINT key or
automatically at timed intervals as entered thru the System Setup mode.
“High Alarm”, “Low Alarm”, or “Std Due” alarm limit had been reached.
Note: High/Low alarms also use an audible notification.
Standardization detail.
Measuring Range # of displayed value. Applicable to Conductivity, TDS,
Salinity, or Resistivity measurements only.
(ATC) Automatic Temperature Compensation is active; temperature is being actively
acquired with attached electrode. ATC is recommended.
(MTC)
Manual Temperature Compensation is active. This occurs when a temperature
sensor may not be attached and the default temperature is used.
See Section 9 – Temperature Standardization to calibrate the ATC or MTC
temperature values.

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Connections:
Power Power supply, 110/230 VAC, 9 VDC, 18 W, center positive.
Use only model 13-636-104 (included).
RS-232 RS-232 serial communication output, 2.5 mm jack.
For use with RS-232 cable 13-637-681 (included).
MINI-B
USB
USB communication for field software upgrades (cable included)
and data output.
2/4 Cell 8-pin DIN connection for 2-cell or 4-cell
Con/TDS/Resistivity/Salinity/Temperature electrodes.
TEMP Automatic Temperature Compensation probe (13-620-19) and
pH electrodes that also include ATC.
GROUND For electrical grounding / electrical noise reduction.
BNC
For combination pH, mV (ORP, Redox), or
Ion Selective Electrodes (ISE). Half-cell indicating electrodes
require 13-620-489 adapter.

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3. System Setup & Configuration
Use the System Setup to customize operation of your AB series meter.
Press SETUP from the measurement screen and then press PRINT/ENTER
when SYSTEM is highlighted to access these settings.
The following settings can be customized for each model:
STABILITY STIRRER
EXPORT D
A
TA S
A
MPLE ID
COMM SETUP LANGUAGE
D
A
TE & TIME BEEP
P
A
SSWORD
FACT RESET
CONTRAST
STABILITY
Adjust how quickly and frequently the ‘Stable’ indicator appears. There are four
levels of adjustment; SLOW, MEDIUM, FAST, or OFF (prevents the Stable
indicator from appearing in measurement mode). To display ‘Stable’ more
quickly and more often, use “FAST” setting. MEDIUM or SLOW is recommended
for most applications.
SLOW: The ‘Stable’ indicator will take longer to appear and will appear less
frequently. Use this setting if you want the best results and don’t mind waiting
longer to get them.
MEDIUM: This is the factory default setting. It provides a balanced response
which works best for most applications.
FAST: The ‘Stable’ indicator will appear quickest of any setting. If you find that
the indicator appears and disappears too frequently, you may want to select a
slower setting. This setting is often not suitable for use with most non-refillable
(gel filled) electrodes which are generally slower to respond.
Tip: Select a lower pH resolution X.XX instead of X.XXX to decrease
stabilization time.
EXPORT DATA
Printing: Select ON or OFF.
Datalog: Select ON or OFF.

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Timed: When either printing or datalog is ON, the option to select Timed
readings ON or OFF appears. Select “ON” to automatically print or save data
at selectable intervals. Select “OFF” to save data manually using the
PRINT/ENTER key.
Time Interval: (MM:SS) (Minutes:Seconds). When timed reading is ON, you
must select an interval at which the data will be sent to the Printer and/or Datalog
memory. Choose from 3 seconds to 60 minutes. Data will be collected until the
data limit is reached or the option is turned “OFF”. This feature is useful for
gathering data from a single sample over time. Note that “SAVE” is not available
during TIMED setting. To view the stored data, use “VIEW” key.
COMM SETUP (Communication Setup)
Format: To send data as a comma separated value, choose CSV – best for
exporting data into spreadsheet software. Choose PRINTER to send the data in
an easily viewable format – best for printing.
Communication Setup: Choose RS-232 (9600 or 19200 baud rate) or USB.
Baud Rate: When RS-232 is selected, choose (9600 or 19200)
DATE & TIME
Setting the correct date and time is required for GLP and will apply to power on,
measurement, data log, and print functions. Factory reset will not apply to date
and time setting once it has been set. Changes related to daylight savings time
must be manually entered.
Date Format: Select (MM DD YY) or (DD MM YY)
Time Format: Select 12Hrs (AM/PM) or 24Hrs
PASSWORD
Select “ENABLE” to restrict access to Calibration and Setup modes. When
password protection is enabled, password entry is required before performing any
calibration, or making changes to the setup mode. Setup parameters can be
viewed, but not changed without correct password entry. The password is a user
selectable number from 1 to 99999.
Select “DISABLE” if password protection is not desired.
The meter does not allow you to edit setup parameters or perform a new
calibration unless you enter the correct password. If an incorrect password is
entered 3 consecutive times, the meter returns to measurement mode.
If a password has been ENABLED but cannot be recovered, a password can be
provided via a written request. The instrument serial number and your contact
information are required.