Agilent Technologies 3200D User manual

Agilent Technologies
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Agilent 3200D 
Dissolved Oxygen Meter
溶解氧测定仪
Operating Guide
用户手册

3200D Dissolved Oxygen Meter Operating Guide
Notices
© Agilent Technologies, Inc. 2012
No part of this manual may be reproduced in
any form or by any means (including elec-
tronic storage and retrieval or translation
into a foreign language) without prior agree-
ment and written consent from Agilent
Technologies, Inc. as governed by United
States and international copyright laws.
Manual Part Number
5973-1779
Edition
First edition, March 2012
Printed in China
Agilent Technologies, Inc.
412 Ying Lun Road
Waigaoqiao Free Trade Zone 
Shanghai 200131 P.R.China
Warranty
The material contained in this docu-
ment is provided “as is,” and is sub-
ject to being changed, without notice,
in future editions. Further, to the max-
imum extent permitted by applicable
law, Agilent disclaims all warranties,
either express or implied, with regard
to this manual and any information
contained herein, including but not
limited to the implied warranties of
merchantability and fitness for a par-
ticular purpose. Agilent shall not be
liable for errors or for incidental or
consequential damages in connec-
tion with the furnishing, use, or per-
formance of this document or of any
information contained herein. Should
Agilent and the user have a separate
written agreement with warranty
terms covering the material in this
document that conflict with these
terms, the warranty terms in the sep-
arate agreement shall control.
Safety Notices
CAUTION
A CAUTION notice denotes a 
hazard. It calls attention to an oper-
ating procedure, practice, or the
like that, if not correctly performed
or adhered to, could result in 
damage to the product or loss of
important data. Do not proceed
beyond a CAUTION notice until the
indicated conditions are fully
understood and met.
WARNING
A WARNING notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly per-
formed or adhered to, could result
in personal injury or death. Do not
proceed beyond a WARNING
notice until the indicated condi-
tions are fully understood and
met.

3200D Dissolved Oxygen Meter Operating Guide 3
Contents
1 Installation 7
Tools and Components for Installation 8
Installing the 3200D Dissolved Oxygen Meter 9
Installing the electrode holder 9
Installing the probe 12
Installing the power adaptor 12
Installing the optional ground line 13
Installing Optional Software 14
2 Operation 15
Introduction 16
Where to find information 16
Term definitions 16
Proper use 17
Features 18
Specifications 19
Physical overview 20
Instrument Control 23
Turn on the Meter 25
Setup 26
Measuring Mode 26
Set Condition 30
System Setup 31
Language select 34
To set the air pressure (barometric pressure) 34
To set the salinity value (SALI Value) 35

4 3200D Dissolved Oxygen Meter Operating Guide
Contents
Auto power off 35
Set Default 36
Prepare the DO Probe 37
To use the DO probe 37
Calibrate the DO Probe 39
Zero oxygen calibration (Calib Zero) 39
Full scale calibration (Calib Full) 40
Perform another calibration 40
Perform a Measurement 41
To measure DO 41
To measure saturation 42
To measure temperature 42
To view other parameters while measuring 42
Managing Data 44
To save data 44
To delete data 44
To output data 44
To view data 45
Turn off the 3200D Dissolved Oxygen Meter 50
Software Operation 51
To use the optional G4390A Electrochemical Data Collecting
software 51
To use the Data Printing software 51
3 Troubleshooting and Maintenance 53
Troubleshooting the 3200D Dissolved Oxygen Meter 54
General Troubleshooting Procedure 56
Check the current response 56
Check the DO probe 56
Check the temperature measurement 57

Contents
3200D Dissolved Oxygen Meter Operating Guide 5
Check other possible causes 57
Meter Self-Diagnostics and Messages 58
Severe errors 58
Error warning 59
Maintenance 61
Probe maintenance 61
Short term storage 61
Long term storage 61
Consumables and Ordering Information 62

6 3200D Dissolved Oxygen Meter Operating Guide
Contents

7
Agilent Technologies
Agilent 3200D Dissolved Oxygen Meter
Operating Guide
1
Installation
Tools and Components for Installation 8
Installing the 3200D Dissolved Oxygen Meter 9
Installing Optional Software 14
The tools and accessories necessary for installation are shipped
with the 3200D Dissolved Oxygen Meter.

8 3200D Dissolved Oxygen Meter Operating Guide
1 Installation

Tools and Components for Installation
Agilent provides the tools needed for installation. The following
accessories are included in the shipping case.
•Multifunction electrode holder (G4389A)
•D6111 DO Probe (5190-3997)
•Power adaptor (5185-8389)

Installation 1
3200D Dissolved Oxygen Meter Operating Guide 9
Installing the 3200D Dissolved Oxygen Meter
Open the 3200D Dissolved Oxygen Meter shipping case. Remove
the meter, electrode holder, and other accessories.
Installing the electrode holder
1Place the electrode holder near the meter and move the arm
into position. Use the thumbscrews shown in Figure 1 to
secure the arm in place.
2Clip the DO (dissolved oxygen) probe into the electrode
fixture shown in Figure 1.
Figure 1 The electrode holder
Electrode fixture
Thumbscrew
Cable tabs
Thumbscrew
Thumbscrew
Thumbscrew
Base
Setscrew
NOTE
The DO probe includes an ATC probe.

10 3200D Dissolved Oxygen Meter Operating Guide
1 Installation

3Route the probe cable as shown Figure 2.
Figure 2 Installed meter and probes
Probes
Meter
Probe socket

Installation 1
3200D Dissolved Oxygen Meter Operating Guide 11
4Locate the DO/Temp probe socket on the back of the meter.
Plug the DO probe connector (5190-3997) into the DO/Temp
socket on the rear of the meter. See Figure 3.
Figure 3 The back view of the 3200D Dissolved Oxygen Meter
Ground
DO/Temp socket
USB
Power (DC 9 V 800 mA)

12 3200D Dissolved Oxygen Meter Operating Guide
1 Installation

Installing the probe
1Locate the socket for the DO probe on the back panel of the
meter. Insert the probe connector into the socket.
2Feed the probe cable through the hole of the multifunction
electrode holder.
Installing the power adaptor
The universal power adapter included with your benchtop
meter is the only power adapter recommended for use with this
unit.
Figure 4 Installing the probe

Installation 1
3200D Dissolved Oxygen Meter Operating Guide 13
The external electrical power adapter is rated at 100 to
240 VAC, 1 A, 50/60Hz.
This power adaptor includes a plug converter that supports
several kinds of plugs.
1Choose the appropriate power plug.
2Connect the output plug of the power adapter to the power
input on the meter. A click will be heard when the plug is
properly engaged.
Installing the optional ground line
The meter ships with an optional ground line. During use, if
another device (such as a constant temperature bath) causes
electrical interference and an unstable reading, install the
ground line. Connect one terminal of the ground line to the
meter ground socket ( ) and the other terminal to the
interference source.
Figure 5 Installing the power adaptor

14 3200D Dissolved Oxygen Meter Operating Guide
1 Installation

Installing Optional Software
If purchased, install the optional G4390A Electrochemical Data
Collecting Software now. The software provides
communications between the meter and a computer. Connect
the computer to the meter with a USB cable. See the G4390A
software documentation for more information.
If not using the G4390A software, Agilent provides
downloadable data printing software on the Agilent Customer
Portal (see “Agilent customer portal” on page 16). To use this
software, download it from the portal and install it. Then
connect the meter to the PC using the USB cable. Refer to the
data printing software documentation for more information.

15
Agilent Technologies
Agilent 3200D Dissolved Oxygen Meter
Operating Guide
2
Operation
Introduction 16
Instrument Control 23
Turn on the Meter 25
Setup 26
Prepare the DO Probe 37
Calibrate the DO Probe 39
Perform a Measurement 41
Managing Data 44
Turn off the 3200D Dissolved Oxygen Meter 50
Software Operation 51
This chapter provides an overview of the individual components
that make up the 3200D Dissolved Oxygen Meter.

16 3200D Dissolved Oxygen Meter Operating Guide
2Operation

Introduction
Where to find information
This document describes how to install, operate, maintain, and
troubleshoot the 3200D Dissolved Oxygen Meter.
Before operating your meter, be sure to read the meter
installation and operation information.
Agilent customer portal
Agilent also provides customized information for the products
you own through a customer portal. This web service provides
many customizable services as well as information related
directly to your Agilent products and orders. Log onto the
portal at http://www.agilent.com/chem.
Term definitions
Dissolved oxygen concentration The extent of oxygen molecules dissolved
in the water solution under certain
conditions in mg/L
Dissolved oxygen saturation The ratio of actual DO concentration
versus saturated DO concentration in
percent (%)
Barometric pressure Barometric pressure in kPa
Salinity The salinity in water in g/L
Zero point calibration Probe calibration in an oxygen-free
solution (freshly prepared 5% sodium
sulfite solution)
Full scale calibration Probe calibration in air-saturated water

Operation 2
3200D Dissolved Oxygen Meter Operating Guide 17
Proper use
The most common safety issues when working on the meter
include:
•Ground the meter using the connection on the back.
•The meter can be used continuously for a long time. After
each measurement, soak the DO probe in distilled water,
which is first boiled and then cooled. Do not soak the DO
probe in sodium sulfite solution. If a probe is out of use for
more than 6 hours, rinse and store it in a protective
container.
CAUTION
Do not expose to corrosive gas. Keep the sockets on the back of the
meter clean and dry. Do not allow contact with acid, alkaline, or salt
solutions.
CAUTION
Only use the power adapter included with the meter.
CAUTION
The probe must be polarized for at least 60 minutes after installing a
new membrane or after replacing the electrolyte.
WARNING
Be sure that the meter has a good ground connection.

18 3200D Dissolved Oxygen Meter Operating Guide
2Operation

Features
The 3200D Dissolved Oxygen Meter is a state-of-the-art and
customer-friendly benchtop analytical instrument for the
measurement of DO concentration and saturation in aqueous
solutions with high accuracy. It can measure temperature
simultaneously.
3200D Dissolved Oxygen Meter features include:
•Measurement of DO concentration, saturation and
temperature
•Calibration, both Zero Point and Full Scale
•A clear dot-matrix LCD display
•Supports GLP standards:
•Requires an operator number
•Records, views, and prints calibration data
•Stores 200 sets of measuring data
•Can view, print, and delete stored measuring data
•Three measuring modes to meet the needs of various users:
•Continuous Mode
•Timed Reading Mode
•Auto-Lock Reading Mode
•USB PC connectivity with available communication software
•Power-off protection: When the meter is manually or
automatically shut off, the stored measuring data, calibration
data, and setting parameters will not be lost.
•A back-lit design that can be used in a dark environment
•A durable key pad

Operation 2
3200D Dissolved Oxygen Meter Operating Guide 19
Specifications
Measuring range
DO concentration 0.00 to 45.00 mg/L
DO saturation 0.0 to 300.0%
Temperature –5.0 to 110.0 °C
Resolution
Temperature resolution 0.1 °C
DO concentration 0.01 mg/L
DO saturation 0.1%
Accuracy of electric unit
DO concentration ±0.10 mg/L
DO saturation ±2.0%
Temperature ±0.1 °C
Normal working conditions
Environmental temperature 0–40 °C
Relative humidity <=85%
Power supply Power adaptor (5185-8389)
Power input 100–240 VAC, 1 A
Power output 9 VDC, 800 mA
Size (width × depth × height, mm): 
190 × 190 × 105
Weight about 1 kg
CAUTION
Do not use where nearby vibrations will affect the performance. Do not
use if corrosive gas is in the air. Do not use near strong
electromagnetic fields.

20 3200D Dissolved Oxygen Meter Operating Guide
2Operation

Physical overview
The 3200D is composed of a meter and a probe system. The
probe system is held in place by the electrode holder. See
Figure 6, Figure 7, and Figure 8.
Figure 6 The meter, electrode holder, and probe
Figure 7 The front view of the 3200D Dissolved Oxygen Meter
Display
screen
Keypad
DO probe
Electrode holder
Meter
Display screen
Keypad