HORIBA F-74BW Instruction Manual

Instruction Manual

表紙は別途デザインの表紙とする

pH/ION/COND METER
F-74BW

■ Preface

This manual describes the operation of the F-74BW pH/ION/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 available
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 from defects in material
and 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 violation of the 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

Generally, company names and brand names are either registered trademarks
or trademarks of the respective companies.

■ Unauthorized Reprinting or Copying of This

Operation Manual

No unauthorized reprinting or copying of all or part of this operation manual is
allowed. The utmost care has been used in the preparation of this operation
manual.

Copyright © 2011 by HORIBA, Ltd. All rights reserved.

REGULATIONS

■ Conformable Directive

This equipment conforms to the following directives and standards:

Directives: The EMC Directive 2004/108/EC

The Low Voltage Directive 2006/95/EC

Standards: [the EMC Directive] EN61326-1:2006

Class B, Basic requirements
[the Low Voltage Directive] EN61010-1:2010(Ed.3.0)

● Installation Environment

This product is designed for the following environment.

- Overvoltage category II

- Measurement category I

WARNING: Do not use the equipment for measurements within

measurement categories II, III and IV.

● Information on Disposal of Electrical and Electronic Equipment and
Disposal of Batteries and Accumulators

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 2002/96/EC, 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

I

■ 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.

REGULATIONS

II

SAFETY OPERATION

■ Hazard Classification and Warning Symbols

Warning messages are described in the following manner. Read the
messages and follow the instructions carefully.

● Hazard classification

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.
Without safety alert indication of hazardous situation which, if
not avoided, could result in property damage.

● Warning symbols

SAFETY OPERATION

Description of what should be done, or what should be followed

Description of what should never be done, or what is prohibited

III

SAFETY OPERATION

■ 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.

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.

WARNING

CAUTION

Harmful chemicals

Some ion electrodes are used with hazardous standard solutions. Handle them
with care.
If the internal solution comes in contact with the skin, wash it off immediately. If it
gets into eyes, flush with plenty of water and then consult a doctor.

Harmful chemicals

The internal solution of an electrodes is highly concentrated potassium chloride
(3.33 mol/L KCl).
If the internal solution comes in contact with the skin, wash it off immediately. If it
gets into eyes, flush with plenty of water and then consult a doctor.

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.

IV

SAFETY OPERATION

■ Product Handling Information

● Operational Precautions

●

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 per­sonal computer may fail because of environmental conditions, such
as (radio/electromagnetic) noise.

● 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.

V

MANUAL INFORMATION

■ Description in This Manual

This interprets the necessary points for correct operation and notifies
the important points for handling the instrument.

This indicates the part of where to refer the informatione.

HINT!

This indicates reference information.

MANUAL INFORMATION

VI

CONTENTS

Chapter 1 About the F-74BW . . . . . . . . 1

Chapter 2 Information of the F-74BW . 2

2.1 Measurement Items . . . . . . . . . . . . . . . . . . . . . . . 2

2.2 Packing List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.3 Names and Functions . . . . . . . . . . . . . . . . . . . . . 4

2.3.1 Names of Each Part . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.3.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.3.3 Operation Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.4 Measurement (MEAS) Flow Chart . . . . . . . . . . . . 7

2.4.1 CH1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.4.2 CH2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.5 Setting (SET) Flow Chart . . . . . . . . . . . . . . . . . . . 8

2.5.1 CH1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.5.2 CH2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.6 Data (DATA) Flow Chart . . . . . . . . . . . . . . . . . . . 10

Chapter 3 Basic Operation . . . . . . . . . 11

3.1 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1.1 Assembling the Electrode Stand . . . . . . . . . . . . . . . 11

3.1.2 Electrode Connection . . . . . . . . . . . . . . . . . . . . . . . . 12

3.1.3 Connecting the Power Source . . . . . . . . . . . . . . . . . 13

3.1.4 Connecting and Setting the Printer . . . . . . . . . . . . . 14

3.1.5 Connecting the Personal Computer . . . . . . . . . . . . . 15

3.2 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2.1 pH Standard Solution Setting . . . . . . . . . . . . . . . . . . 16

3.2.2 Temperature Compensation Function Setting . . . . . 18

3.2.3 Auto Data Memory Setting . . . . . . . . . . . . . . . . . . . . 20

3.2.4 pH Calibration Interval Setting . . . . . . . . . . . . . . . . . 21

3.2.5 Sample ID Setting . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.2.6 ION Unit Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.2.7 ION Valency Setting . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.2.8 Conductivity Unit Setting . . . . . . . . . . . . . . . . . . . . . 25

VII

CONTENTS

3.2.9 Conductivity

Temperature Coefficient Setting . . . . . . . . . . . . . . . 26

3.2.10 Conductivity Cell Constant Setting . . . . . . . . . . . . . 27

3.2.11 Salinity Unit Setting . . . . . . . . . . . . . . . . . . . . . . . . 28

3.2.12 Auto Printer Setting . . . . . . . . . . . . . . . . . . . . . . . . 29

3.2.13 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

3.3 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3.3.1 pH Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3.3.2 ION Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

3.3.3 Conductivity Calibration . . . . . . . . . . . . . . . . . . . . . . 66

3.3.4 Salinity Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . 67

3.3.5 Calibration Value Printing . . . . . . . . . . . . . . . . . . . . . 69

3.4 Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

3.4.1 Measurement Value Hold . . . . . . . . . . . . . . . . . . . . . 71

3.4.2 Measurement Items Changing . . . . . . . . . . . . . . . . . 72

3.4.3 Auto Data Memory . . . . . . . . . . . . . . . . . . . . . . . . . . 73

3.4.4 Measurement Value Printing . . . . . . . . . . . . . . . . . . 74

3.5 Data Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 78

3.5.1 Data Memory of Measurement Value . . . . . . . . . . . 78

3.5.2 Memory Data Display . . . . . . . . . . . . . . . . . . . . . . . . 79

3.5.3 Memory Data Printing . . . . . . . . . . . . . . . . . . . . . . . 80

3.5.4 Calibration History Display . . . . . . . . . . . . . . . . . . . . 82

3.5.5 Calibration History Printing . . . . . . . . . . . . . . . . . . . . 84

3.5.6 pH Check History Display . . . . . . . . . . . . . . . . . . . . 86

3.5.7 pH Check Data Printing . . . . . . . . . . . . . . . . . . . . . . 87

Chapter 4 Maintenance and

Troubleshooting . . . . . . . . 88

4.1 pH (ORP) Electrode Maintenance . . . . . . . . . . . 88

VIII

4.2 ION Electrode Maintenance . . . . . . . . . . . . . . . 92

4.2.1 65XX-10C Electrode Maintenance . . . . . . . . . . . . . . 94

4.3 Conductivity Electrode Maintenance . . . . . . . . 99

4.4 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 100

4.4.1 Error Message Chart . . . . . . . . . . . . . . . . . . . . . . . 100

4.4.2 More Troubleshooting . . . . . . . . . . . . . . . . . . . . . . 107

CONTENTS

Chapter 5 Specifications . . . . . . . . . 113

5.1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 113

5.2 Default Settings . . . . . . . . . . . . . . . . . . . . . . . . 116

5.3 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

IX

Chapter 1 About the F-74BW

Chapter 1 About the F-74BW

The desktop type pH meter F-74BW is optimized for
laboratory measurement, and allows you to measure
pH, ORP, ION, conductivity, resistivility, salinity, and
TDS.

It provides a comfortable measurement environment
with the design easy to wipe clean without roughness on
the surface, and the free-standing electrode stand and
the custom LCD for ease of measurement.

F-74BW 1

Chapter 2 Information of the F-74BW

2.1 Measurement Items

Chapter 2

Information of the F-74BW

2.1 Measurement Items

Measurement item F-74BW

pH √

ORP (mV) √

Ion √

Conductivity √

Salinity √

Resistivity √

TDS
(Total Dissolved Solids)

Temperature √

√

2HORIBA

2.2 Packing List

The F-74BW’s package includes the following.
Electrodes are required for the measurement in addition

to this package. If you want to buy an electrode, contact
HORIBA sales representative.

Main unit 1

Electrode stand 1

Instruction Manual 1

Quick Manual 1

Chapter 2 Information of the F-74BW

2.2 Packing List

Product Quantity

AC adapter 1

Ferrite core 1

F-74BW 3

Chapter 2 Information of the F-74BW

2.3 Names and Functions

2.3 Names and Functions

2.3.1 Names of Each Part

Stand arm

Display

Operation key

CH2 reference electrode

Stopper

Stand base

CH1 reference electrode

CH2 measurement electrode

CH2 temperature electrode

AC adapter connector

Printer connector

CH1 measurement electrode

CH1 temperature electrode

4HORIBA

2.3.2 Display

Chapter 2 Information of the F-74BW

2.3 Names and Functions

Connector for USB communication with a personal computer

Electrode status icon

Setting mode

Error No.,
Data No.,
Date

Active mode

Measuring
parameter

Calibration
status

HOLD
indicator

Printer connecting icon

Data memory icon

USB icon

Temperature

Measurement
unit

F-74BW 5

Chapter 2 Information of the F-74BW

2.3 Names and Functions

2.3.3 Operation Key

This instrument employs capacitance switches.
You can not operate them with thick gloves. Operate

them with bare hands or thin rubber gloves.

Operation key Function

CAL key Starts/stops calibration or enters the

calibration mode.

MEAS key Starts/stops measurement or enters the

measurement mode.
Applies the setting values of the setting
mode.

DATA key Enters the data operation mode.

Printouts calibration value.

SET key Enters the setting mode.

Cancels the setting values of the setting
mode.

MODE key Toggles the measurement items.

▲ key
▼ key

Increases the values.
Decreases the values.
Switches the setting item.
Switches the CH items.

▲

key

▼

Change number of digits, selects functions.

Printouts measurement values. ( key)

▼

ENTER key Settlement, execution, prinout

(except measurement values)
Start/stops automatic data memory.

POWER key Turns ON or OFF the power.

Press the POWER key for 1 second or longer to turn ON the
power, for 2 seconds or longer to turn OFF the power.

6HORIBA

Chapter 2 Information of the F-74BW

2.4 Measurement (MEAS) Flow Chart

2.4 Measurement (MEAS) Flow Chart

2.4.1 CH1

pH measurement

MODE key

2.4.2 CH2

ORP measurement

(mV)

MODE key

ION measurement

(mV)

MODE key

COND measurement

MODE key

Resistivity measurement

MODE key

ORP measurement

(relative mV)

CAL key

Salinity measurement

MODE key

TDS measurement

MODE key

F-74BW 7

Chapter 2 Information of the F-74BW

2.5 Setting (SET) Flow Chart

2.5 Setting (SET) Flow Chart

2.5.1 CH1

Standard solution setting

▲▼ key

Temperature compensation

function setting

▲▼ key

Automatic data memory

setting

▲▼ key

pH calibration interval setting

▲▼ key

Sample ID setting

NIST, USA, CUST

ATC, MTC

ON, OFF

ON, OFF

▲▼ key

Ion unit setting

▲▼ key

Ion valency setting

▲▼ key

Automatic printout setting

▲▼ key

Maintenance

▲▼ key

g/L, mol/L

−2, −1, +1, +2

ON, OFF

LCD Check, Printer Test, Auto Power Off Set­tings, Day and Time Settings, Memory Data
Deleting, Calibration Data Deleting, Number of
Memory Data Display, Temperature Calibra­tion, Setting Value Initialization, Password Set­tings

8HORIBA

2.5.2 CH2

Chapter 2 Information of the F-74BW

2.5 Setting (SET) Flow Chart

Temperature compensation

function setting

▲▼ key

Automatic data memory

setting

▲▼ key

Sample ID setting

▲▼ key

Conductivity

unit setting

▲▼ key

Conductivity temperature

coefficient setting

ATC, MTC

ON, OFF

S/cm, S/m, mS/cm

Input range: 0.00% to 10.00%

FIX

▲▼ key

Conductivity

cell constant setting

▲▼ key

Salinity unit setting PPT, %

▲▼ key

Automatic printout setting

▲▼ key

Maintenance

▲▼ key

×10, ×100, ×1000 /m

×0.1, ×1, ×10 /cm

Input range: 0.700 to 1.300

ON, OFF

LCD Check, Printer Test, Auto Power Off Set­tings, Day and Time Settings, Memory Data
Deleting, Calibration Data Deleting, Number of
Memory Data Display, Temperature Calibra­tion, Setting Value Initialization, Password Set­tings

F-74BW 9

Chapter 2 Information of the F-74BW

2.6 Data (DATA) Flow Chart

2.6 Data (DATA) Flow Chart

Data memory

▲▼ key

Data display

▲▼ key

pH calibration data

▲▼ key

pH check data

▲▼ key

Ion calibration data

▲▼ key

10 HORIBA

Chapter 3 Basic Operation

Chapter 3 Basic Operation

3.1 Preparation

3.1.1 Assembling the Electrode Stand

1. Attach the stand shaft to the stand base.

2. Attach the stopper and the stand arm to the stand

shaft.

3.1 Preparation

Stand shaft

Stopper

Stand base

Stand arm

F-74BW 11

Chapter 3 Basic Operation

3.1 Preparation

3.1.2 Electrode Connection

CH2 reference electrode

CH2 measurement electrode

CH2 temperature electrode

● Electrode connector

1. Insert the groove of electrode plug by fitting it with

the socket pin of the instrument.

If the pin and groove are misaligned, do not insert the plug with
force.

CH1 reference electrode

CH1 measurement electrode

CH1 temperature electrode

CH1 measurement electrode

2. Turn the electrode connector to the right along the

groove to plug the connector.

12 HORIBA

3. Put the connector cover on the connector.

Just push the cover on the instrument. Do not screw in it.

● Temperature connector

1. Insert the temperature connector into the jack

socket on the instrument.

Chapter 3 Basic Operation

3.1 Preparation

CH1 temperature electrode

If the temperature connector is unconnected or the connection is
wrong, the MTC set temperature is displayed as the sample
temperature.

3.1.3 Connecting the Power Source

1. Insert the AC adapter cable by fitting with the

connector socket of in the instrument.

AC adapter connector

F-74BW 13

Chapter 3 Basic Operation

3.1 Preparation

・ Do not insert the cable with force when the connectors do not

match.

・ Attach the provided ferrite core to the AC adapter cable.

3.1.4 Connecting and Setting the Printer

● Connecting the Printer

1. Insert the printer cable by fitting with the connector

socket of the instrument.

Printer connector

The following printer is possible.

Printer

・CITIZEN CBM-910-24RJ120 V:

plain paper type (Parts No.: 3014030146)

・CITIZEN CBM-910-24RJ230 V:

plain paper type (Parts No.: 3014030147)

・Optional printer cable (Parts No.: 3014030148) is

required.

・ Make sure to use an appropriate cable for the printer.
・ Make sure to power OFF the instrument before connecting a

printer.

・ When you do not connect a printer with the instrument,

disconnect the printer cable and put the rubber cap firmly on
the connector sockets on the instrument.

14 HORIBA

● Setting the Printer

Refer to the instruction manual of the printer for settings
and operations of the printer.

(1) Set the DIP switch No. 6 to ON and No. 7 to OFF,

and then set printer paper and ink ribbon. Keep the
LF key held down.

(2) Keep the SEL key held down.

The printer prints output when the SEL key is being
pressed.

3.1.5 Connecting the Personal Computer

Chapter 3 Basic Operation

3.1 Preparation

Personal computer communication connector

・Use proprietary cables to connect with a personal

computer.
Proprietary cable
Parts name: USB cable (1 m)
Parts No.: 3200373941

・Make sure that the transfer formats of the measuring

instrument and personal computer are same.
Otherwise, communication may fail due to a
communication error or the online mode start failure.
If you change the transfer formats, power OFF both of
the instrument and the personal computer once, and
then turn on them again.

・For the details of communication commands, register

with our website and see the free download page of
manuals.

F-74BW 15

Chapter 3 Basic Operation

3.2 Settings

3.2 Settings

This section describes the procedures of the instrument
condition settings for measurement, calibration, and
maintenance.

The settings apply when you press the MEAS key to
return to the measurement screen.

If you press the SET key during setting or after pressing
the ENTER key, the settings are cancelled.

3.2.1 pH Standard Solution Setting

There are 3-type settings of standard solutions used for
calibration; NIST, USA, and CUST.

NIST is selected initially for pH standard solutions.
This setting is possible only for CH1.

1. Press the SET key on the measurement screen is

displayed to enter the pH standard solution setting
screen.

2. Press the ENTER key to enter the pH standard

solution change screen.

16 HORIBA

Chapter 3 Basic Operation

3.2 Settings

3. Press the or key to change NIST, USA, and

▲

▼

CUST, and press the ENTER key.

NIST
specification
(NIST)

When using a standard solution of
interior specification

Bottle mark

US specification
(USA)

When using a standard solution of the
USA specification

Bottle mark

Customized
specification
(CUST)

The calibration value of the pH7 standard solution differs between
NIST and USA.
NIST specification: pH6.865 (at 25°C)
US specification: pH7.000 (at 25°C)
When you use NIST standard solution for calibration, make sure
to set NIST here.

When the user’s exclusive standard
solution

Bottle mark

F-74BW 17

Chapter 3 Basic Operation

3.2 Settings

3.2.2 Temperature Compensation Function Setting

You can perform temperature compensation for pH
electrode outputs.

This setting can be set to each of CH1 and CH2.

1. Press the SET key on the measurement screen,

and press the ▼ key to enter the temperature
compensation function setting screen.

2. Press the ENTER key to enter the temperature

compensation function change screen.

3. Press the or key to change ATC or MTC,

and press the ENTER key.

▲

4. If you select MTC, press the or key to select

a digit and press the ▲ or ▼ key to change the
value, and then press the ENTER key.

Setting range: 0°C to 100°C

▼

▲

▼

18 HORIBA