horiba LAQUA COND DS-72 User manual

Instruction Manual
COND METER
DS-72

February, 2016 © 2011 2016 HORIBA, Ltd.
■Preface
This manual describes the operation of the DS-72 COND Meter.
Be sure to read this manual before using the product to ensure proper and safe
operation of the instrument. Also safely store the manual so it is readily possible
whenever necessary.
Product specifications and appearance, as well as the contents of this manual
are subject to change without notice.
■Warranty and Responsibility
HORIBA, Ltd. warrants that the Product shall be free fromdefectsinmaterialand
workmanship and agrees to repair or replace free of charge, at option of
HORIBA, Ltd., any malfunctioned or damaged Product attributable to
responsibility of HORIBA, Ltd. for a period of one (1) year from the delivery
unless otherwise agreed with a written agreement. In any one of the following
cases, none of the warranties set forth herein shall be extended;
• Any malfunction or damage attributable to improper operation
• Any malfunction attributable to repair or modification by any person not
authorized by HORIBA, Ltd.
• Any malfunction or damage attributable to the use in an environment not
specified in this manual
• Any malfunction or damage attributable to violationofthe instructions in
this manual or operations in the manner not specified in this manual
• Any malfunction or damage attributable to any cause or causes beyond
the reasonable control of HORIBA, Ltd. such as natural disasters
• Any deterioration in appearance attributable to corrosion, rust, and so on
• Replacement of consumables
HORIBA, LTD. SHALL NOT BE LIABLE FOR ANY DAMAGES RESULTING
FROM ANY MALFUNCTIONS OF THE PRODUCT, ANY ERASURE OF DATA,
OR ANY OTHER USES OF THE PRODUCT.
■Trademarks
Company names and brand names are either registered trademarks or
trademarks of the respective companies. (R), (TM) symbols may be omitted in
this manual.

I
■EU Regulations
●Conformable standards
This equipment conforms to the following standards:
●Installation environment
This product is designed for the following environment.
- Overvoltage category II
- Pollution degree 2
●Information on disposal of electrical and electronic equipment and
disposal of batteries and accumulators
EMC: EN61326-1
Class B, Basic electromagnetic environment
Safety: EN61010-1
RoHS: EN50581
9. Monitoring and control instruments
Warning: This product is not intended for use in industrial environments. In an
industrial environment, electromagnetic environmental effects may
cause the incorrect performance of the product in which case the user
may be required to take adequate measures.
The crossed out wheeled bin symbol with underbar shown on the
product or accompanying documents indicates the product requires
appropriate treatment, collection and recycle for waste electrical and
electronic equipment (WEEE) under the Directive 2012/19/EU, and/or
waste batteries and accumulators under the Directive 2006/66/EC in
the European Union.
The symbol might be put with one of the chemical symbols below. In
this case, it satisfies the requirements of the Directive 2006/66/EC for
the object chemical.
This product should not be disposed of as unsorted household waste.
Your correct disposal of WEEE, waste batteries and accumulators will
contribute to reducing wasteful consumption of natural resources, and
protecting human health and the environment from potential negative
effects caused by hazardous substance in products.
Contact your supplier for information on applicable disposal methods.

REGULATIONS
II
●Authorised Representative in EU
HORIBA UK Limited
2 Dalston Gardens, Stanmore, Middx HA7 1BQ, UK
REGULATIONS
■FCC Rules
Any changes or modifications not expressly approved by the party
responsible for compliance shall void the user's authority to operate the
equipment.
●Warning
This equipment has been tested and found to comply with the limits for
a Class A digital device, pursuant to part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio
communications.
Operation of this equipment in a residential area is likely to cause
harmful interference in which case the user will be required to correct
the interference at his own expense.
■Korea Certification
●
■Taiwan Battery Recycling Mark

SAFETY OPERATION
III
■Hazard Classification and Warning Symbols
Warning messages are described in the following manner. Read the
messages and follow the instructions carefully.
●Hazard classification
●Warning symbols
SAFETY OPERATION
This indicates an imminently hazardous situation which,
if not avoided, will result in death or serious injury. This
signal word is to be limited to the most extreme
situations.
This indicates a potentially hazardous situation which, if
not avoided, could result in death or serious injury.
This indicates a potentially hazardous situation which, if
not avoided, may result in minor or moderate injury. It
may also be used to alert against unsafe practices.
Description of what should be done, or what should be followed
Description of what should never be done, or what is prohibited

SAFETY OPERATION
IV
■Safety Precautions
This section provides precautions to enable you to use the product
safely and correctly and to prevent injury and damage. The terms of
DANGER, WARNING, and CAUTION indicate the degree of imminency
and hazardous situation. Read the precautions carefully as it contains
important safety messages.
WARNING
Do not use an unspecified AC adapter.
Otherwise, it may heat up or be ignited resulting in a fire or an accident.
Do not disassemble or modify the meter.
Otherwise, it may heat up or be ignited resulting in a fire or an accident.
Fire
• For your safety, make sure to unplug the power plug from the electrical outlet
when not in use.
• Clear dust on the power plug periodically (a few times a year).
If the power supply cord is left plugging into the electrical outlet for a long period of
time, electrical tracking may occur due to dust and moisture, and it may result in an
ignition or a fire.
Fire or electric shock
• Do not bundle the power supply cord during use.
• Do not damage the power supply cord nor apply an excessive load to it, such as
bending and stretching it repeatedly, putting a heavy thing on it.
• If it can not be plugged into an electrical outlet firmly, stop use of the power
supply cord.
If may result in overheating, a fire, an electrical shock, or breakdown.
CAUTION
Broken glass
Broken glass may cause injury.
The outer tube and tip of an electrode are made of glass.
Handle them with care.
Do not use the cable of serial communication, USB, or AC adapter under wet or
humid conditions.
Otherwise, it may cause an fire, electric shock, or breakage.

SAFETY OPERATION
V
■Product Handling Information
●Operational precautions
●Only use the product including accessories for their intended
purpose.
●Do not drop, crash, or give any physical impact on the instrument.
●Do not immerse the instrument into alcohol, organic solvent, strong
acid, strong alkaline, or the like. The instrument body contains ABS
resin, acrylic resin, and some rubber parts.
●If the instrument is dropped into water or gets wet, wipe it using soft
cloth. Do not heat to dry it with a hair-dryer (or the like).
●Use fingers to press the operation keys or the touch panel.
Do not use a hard object like a metal stick or rod.
●Be careful not to let water into the instruction inside.
The instrument is not water-proof.
●To disconnect an electrode or interface cable, hold the connector and
pull it off. If you pull at the cable, it may cause a breakage.
●The touch panel is capacitance-type. Make sure to turn OFF the
power before cleaning the panel. If you wipe it with the power ON, it
may cause instrument malfunction.
●RS-232C or USB communication between the instrument and a per-
sonal computer may fail because of environmental conditions, such
as (radio/electromagnetic) noise.
●Make sure to use the provided power supply cable to power this
product.
●Environmental conditions for use and storage
●Temperature: 0C to 45C
●Humidity: under 80% in relative humidity and free from 
condensation
Avoid the following conditions:
●Dusty environment
●Strong vibration
●Direct sunlight
●Corrosive gas environment
●Close to an air-conditioner
●Direct wind
●Transportation
When transporting the instrument, repackage it in the original package
box. Otherwise, it may cause instrument breakage.
●Disposal
Standard solution used for the calibration must be under neutralized
before the disposal. As for the disposal of the meter, treat it as an
industrial waste.

MANUAL INFORMATION
VI
■Description in This Manual
This interprets the necessary points for correct operation and notifies
the important points for handling the product.
This indicates the part where to refer for information.
This indicates reference information.
■Original Language
This is the English translation of an original Japanese document.
HINT!

Contents
VII
Chapter 1 OVERVIEW ................................................................................ 1
1.1 Description of Each Part ........................................................................ 1
1.1.1 Rear ................................................................................................ 1
1.1.2 Display ............................................................................................ 1
1.1.3 Left Side .......................................................................................... 2
1.1.4 Right Side ....................................................................................... 2
1.1.5 Accessories ..................................................................................... 2
1.1.6 Operation Keys ............................................................................... 3
1.1.7 Icons (Icon Bar) ............................................................................... 4
1.1.8 Status Icons .................................................................................... 5
1.1.9 Meas Screen ................................................................................... 6
1.2 Basic Operation of Touch-Panel and Touch-Key ................................ 7
1.3 Function and Operation of the Meas Screen ....................................... 8
1.4 Assembling the Electrode Stand ......................................................... 10
1.5 Connecting the Electrode .................................................................... 11
1.5.1 Electrode Connector ..................................................................... 11
1.5.2 Temperature Connector ................................................................ 11
1.6 Connecting the Power Source ............................................................. 12
1.7 Connecting the Printer ......................................................................... 12
1.8 Connecting the Personal Computer ................................................... 13
1.9 Turn ON the Power ............................................................................... 14
Chapter 2 Before Measurement (Meter SET) ........................................ 15
2.1 Meter SET Screen ................................................................................. 15
2.2 Auto Hold Setting ................................................................................. 15
2.3 Custom Setting ..................................................................................... 16
2.4 Sample Name Setting ........................................................................... 17
2.5 Interval Memory Setting ....................................................................... 18
2.6 USB Memory Setting ............................................................................ 19
2.7 Printer Setting ....................................................................................... 21
2.8 Screen Settings ..................................................................................... 23
2.9 Sound Setting ....................................................................................... 25
2.10 Language Setting ................................................................................ 26
2.11 Security Setting .................................................................................. 26
2.12 User Entry/Info Change/Delete .......................................................... 28
2.13 Date Setting ......................................................................................... 30
2.14 Analog Output Adjustment ................................................................ 31
2.15 Temperature Sensor Calibration ....................................................... 32
2.16 Resetting to Factory Defaults ............................................................ 33
Chapter 3 COND (conductivity) Measurement ...................................... 34
3.1 COND Calibration ................................................................................. 34
3.1.1 Automatic Calibration Setting ........................................................ 34
3.1.2 Calibration of Standard Solution ................................................... 35
3.2 COND Measurement Setting ................................................................ 38

Contents
VIII
3.2.1 Cell Constant Setting .................................................................... 38
3.2.2 COND Measurement Unit Setting ................................................. 39
3.2.3 Temperature Setting ..................................................................... 40
3.2.4 Temperature Conversion Function Setting ................................... 41
3.2.5 Alarm Setting ................................................................................ 42
3.2.6 Electrode Model Setting ................................................................ 44
3.2.7 Electrode Lot No. Setting .............................................................. 45
3.3 COND Measurement ............................................................................. 46
Chapter 4 SAL (Salinity) Measurement .................................................. 47
4.1 Measurement Target Selection ........................................................... 47
4.2 SAL Calibration Setting ....................................................................... 48
4.3 SAL Measurement Setting ................................................................... 49
4.4 SAL Measurement Unit Setting ........................................................... 49
4.5 Temperature Setting ............................................................................. 49
4.6 Alarm Setting ........................................................................................ 50
4.6.1 Input Upper or Lower Limit Values ............................................... 50
4.7 Electrode Model Setting ....................................................................... 51
4.8 SAL Measurement ................................................................................ 51
Chapter 5 Resist (Resistivity) Measurement ......................................... 52
5.1 Resist Measurement Setting ............................................................... 52
5.2 Resist Measurement Unit Setting ....................................................... 52
5.3 Temperature Setting ............................................................................. 52
5.4 Alarm Setting ........................................................................................ 53
5.4.1 Input Upper or Lower Limit Values ............................................... 53
5.5 Electrode Model Setting ....................................................................... 54
5.6 Resist Measurement ............................................................................. 54
Chapter 6 TDS (Total Dissolved Solids) Measurement ........................ 55
6.1 TDS Measurement Setting ................................................................... 55
6.2 TDS Measurement Mode Setting ......................................................... 55
6.2.1 Input TDS Linear Value when selecting LINEAR .......................... 56
6.3 Temperature Setting ............................................................................. 56
6.4 Alarm Setting ........................................................................................ 56
6.4.1 Input Upper or Lower Limit Values ............................................... 57
6.5 Electrode Model Setting ....................................................................... 57
6.6 TDS Measurement ................................................................................ 58
Chapter 7 Application Mode ................................................................... 59
7.1 Pharmacopeia Mode ............................................................................. 59
7.1.1 Shift to Pharmacopeia Mode ........................................................ 60
7.1.2 Measured by USP (Stage 1) ......................................................... 60
7.1.3 Measured by USP (Stage 2) ......................................................... 61
7.1.4 Measured by EP ........................................................................... 62

Contents
IX
7.1.5 Measured by JP (OFF-LINE) ........................................................ 63
7.1.6 Measured by JP (0mL-10mL (in container)) ................................. 64
7.1.7 Measured by JP (10mL- (in container)) ........................................ 65
7.1.8 Measured by PPRC (CP) (Stage 1) .............................................. 66
7.1.9 Measured by PPRC (CP) (Stage 2) .............................................. 67
7.1.10 Temperature and Conductivity Requirements ............................ 68
Chapter 8 Periodic Inspection Mode ..................................................... 69
8.1 COND Periodic Inspection Mode Setting ........................................... 69
8.1.1 Pharmacopoeia Mode ................................................................... 69
8.1.2 COND Checker (X-52) Mode ........................................................ 71
8.2 Comment Input ..................................................................................... 72
Chapter 9 Data ......................................................................................... 73
9.1 Measurement data_All .......................................................................... 73
9.2 Deleting Saved Data ............................................................................. 73
9.3 Measurement data_latest50 ................................................................. 74
9.4 Measured data_Search ......................................................................... 74
9.5 Copy all Meas. Data ............................................................................. 75
9.6 Delete all meas. Data ............................................................................ 75
Chapter 10 Specifications ....................................................................... 76
10.1 Specifications ..................................................................................... 76
10.2 Default Settings .................................................................................. 77
10.2.1 Meter Default Settings ................................................................ 77
10.2.2 Measurement Condition Default Settings 
(Can be set per operator) .............................................................. 78
10.3 Options ................................................................................................ 80

Chapter 1 OVERVIEW
DS-72 1
Chapter 1 OVERVIEW
This chapter describes functions and basic operations of the instrument.
1.1 Description of Each Part
1.1.1 Rear
1.1.2 Display
CH2 reference electrode
CH2 measurement electrode
CH2 for temperature electrode
CAL key
POWER key
MEAS key
DATA key
Icon bar
Status bar
Touch panel

Chapter 1 OVERVIEW
2HORIBA
1.1.3 Left Side
1.1.4 Right Side
1.1.5 Accessories
*Clock battery (CR-2032) is put into the battery cover at the instrument bottom.
Name Function
AC adapter Used to power the instrument.
Electrode stand Used to move and set electrodes during measurement.
Rubber cover Protects the instrument side surfaces.
Instruction manual Instructs the usage of the instrument.
Quick manual Instructs the operations of calibration and measurement.
Ferritecore Attach this device to the AC adapter cable to reduce interference.
AC adapter connector
Serial communication connector (RS-232C)
Analog output connector 2 (CH2 data)
Analog output connector 3 (Alarm)
Connector for Connector for USB communication
with a personal computer
USB memory

Chapter 1 OVERVIEW
DS-72 3
1.1.6 Operation Keys
The POWER key does not work for 10 seconds after the AC adapter is connected.
Wait for a while after connecting AC adapter.
Operation key Function
POWER Turns ON or OFF the power. 
(Press and hold for 2 seconds or more.)
CAL Displays the calibration screen (CAL screen).
MEAS Displays the measurement screen (MEAS screen).
DATA Displays the data screen (DATA screen).

Chapter 1 OVERVIEW
4HORIBA
1.1.7 Icons(Icon Bar)
The icons displayed on the bottom of the touch panel allow you to set up the instrument,
check calibration information, and print out and save data.
Icon Function
Menu
Used to perform measurement, display the Meter
SET screen, and switch to the inspection and
application modes.
Information
Used to check calibration information on the MEAS
or CAL screen, and application information on the
Meter SET screen.
User's guide Used to check operation instructions and
information about measurement and maintenance.
Printer Used to print out measurement or calibration
values or saved data when a printer is connected.
Save in USB Used to save measured data into a USB memory.
Save data Used to save measurement values displayed on
the screen into the instrument.
Trash box Used to delete calibration data or the data saved in
the instrument.
Operation
Used to start and stop the operations of
measurement and calibration, and to change to the
instantaneous value display.
The icon label depends on the corresponding
operation.

Chapter 1 OVERVIEW
DS-72 5
1.1.8 Status Icons
The icons displayed on the top of the touch panel show information on the instrument.
*1: These icons appear when a USB cable is connected, but it does not always mean that
the communication is conducted.
Status icon Function
Auto hold
Shows that the automatic hold function is ON, and that the
end point is determined automatically according to input
signals from the electrode based on the pre-selected stability
criterion of measurement values.
Refer to "2.2 Auto Hold Setting" (P.15).
Manual hold
Shows that the manual hold function is ON, and that the end
point is determined manually.
Refer to "2.2 Auto Hold Setting" (P.15).
USB1*1 Shows that the instrument is connected with a personal
computer via a USB cable.
USB2*1 Shows that the instrument is connected with a USB data
storage media.
Printer Shows that the instrument is connected with a printer with a
dedicated printer cable.

Chapter 1 OVERVIEW
6HORIBA
1.1.9 Meas Screen
Indicator Name Description
Temperature
compensation
electrode
connection
indicator
Displayed: A temperature compensation electrode
is connected. 
The displayed temperature is the
electrode temperature (ATC).
Not displayed: The displayed temperature is preset
value (MTC).
HOLD indicator
Not displayed: An instantaneous value is displayed.
Blinking: In-process for HOLD
Lighting up: HOLD completed.
Temperature
HOLD indicator
Channel
Icon
Measurement mode
Status
Date and time
Measurement item
Temperature
compensation
electrode
connection
indicator
Measurement values
Measurement
operation
information

Chapter 1 OVERVIEW
DS-72 7
1.2 Basic Operation of Touch-Panel and Touch-Key
The instrument has touch panel and keys and you can operate it by touching the screen.
The 3 basic operations of Tap, Flick, and Drag allow you to operate the instrument
intuitively. This section describes the basic operations.
Operation Description
Tap Tap on the screen lightly once with a finger.
Tap a menu item or icon to select it or change settings.
Flick Touch and flick on the screen with a finger.
Used to switch to the digital or graph display on the MEAS or CAL
screen.
Drag Keep a finger in contact with the screen and drag it on the screen.
Used to search a setting item, or measurement data on the DATA
screen. When a scroll bar is displayed on the right of the screen, you
can scroll the screen by this operation.

Chapter 1 OVERVIEW
8HORIBA
1.3 Function and Operation of the Meas Screen
The MEAS screen has three display methods to check variation and tendency of
measurement values.
You can shift the screen to the digital, graph or analog screen by flicking it.
Digital display
If arrows, like and , appear when you touch the screen, you can flick in the directions
to switch the screen display.
Graph display Analog display