horiba LaquaTwin B-771 User manual

CODE:GZ0000297065

Refer to page 6 to page 19 for detailed instructions.

August, 2012 © 2012 HORIBA, Ltd.
Preface
This manual describes the operation of the COMPACT CONDUCTIVITY
METER, B-771.
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.
JWarranty 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;
zAny malfunction or damage attributable to improper operation
zAny malfunction attributable to repair or modification by any person
not authorized by HORIBA, Ltd.
zAny malfunction or damage attributable to the use in an
environment not specified in this manual
zAny malfunction or damage attributable to violation of the
instructions in this manual or operations in the manner not specified
in this manual
zAny malfunction or damage attributable to any cause or causes
beyond the reasonable control of HORIBA, Ltd. such as natural
disasters
zAny deterioration in appearance attributable to corrosion, rust, and
so on
zReplacement of consumables such as the sensor and standard
solutions
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.

JTrademarks
Generally, company names and brand names are either registered
trademarks or trademarks of the respective companies. (R), (TM)
symbols may be omitted in this manual.

Regulations
JConformable Directive
This equipment conforms to the following directives and standards:
QInformation 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.
Directives: the EMC Directive 2004/108/EC
Standards: [the EMC Directive] EN61326-1:2006
Class B,
Portable test and measurement equipment

JFCC Rules
Any changes or modifications not expressly approved by the party
responsible for compliance shall void the user's authority to operate the
equipment.
QWARNING
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.
JKorea Certification
Q
JTaiwan Battery Recycling Mark
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Contents
1 Introduction.......................................................................................... 1
1.1 Items in package .........................................................................1
1.2 Consumable parts sold separately ..............................................1
2 Part Names and Functions ................................................................. 2
3 Handling Precautions.......................................................................... 4
4 Basic Handling..................................................................................... 6
4.1 Inserting/removing batteries ........................................................6
4.2 Attaching/detaching the sensor ...................................................7
4.3 Power ON/OFF ............................................................................8
4.4 Storage ........................................................................................8
4.5 Electrode surface treatment ........................................................8
5 Calibration............................................................................................ 9
5.1 About calibration ..........................................................................9
5.2 One-point calibration .................................................................10
5.3 Two-point calibration .................................................................11
6 Measurement...................................................................................... 12
6.1 Sample setting ...........................................................................12
6.2 Measurement operations ...........................................................14
7 Special Setting Mode......................................................................... 15
7.1 Measurement unit setting ..........................................................16
7.2 Temperature display mode ........................................................17
7.3 Calibration point setting .............................................................18
7.4 Initialization mode ......................................................................19
7.5 Software version display mode ..................................................19
8 Appendix ............................................................................................ 20
8.1 Frequently asked questions .......................................................20
8.2 Specifications ............................................................................22

1
1 Introduction
COMPACT CONDUCTIVITY METER B-771 incorporates HORIBA original
flat sensor and enables accurate measurement of conductivity from a single
drop of a sample.
B-771 can display converted salt concentrations and converted TDS (total
dissolved solids) as well as conductivity.
1.1 Items in package
Note
Before using the sensor for the first time, perform electrode surface
treatment as instructed on page 8.
1.2 Consumable parts sold separately
Meter model B-771
Sensor S070 1
Meter B-771 1
Storage case 1
Batteries CR2032 2
Dedicated standard solutions Conductivity 1.41 mS/cm 1
Moistening solution 1
Pipette 1
Instruction manual B-771 1
Quick-start manual 1
Part No. Name Type Application
3200459672 Sensor S070, COND B-771
3200457717 Standard
solutions Y071L, 1.41 mS/cm B-771 (low conductivity)
3200457718 Y071H, 12.9 mS/cm B-771 (high conductivity)

2
2 Part Names and Functions
No. Name Description
1 Measurement cell Place a sample in this cell to measure it with the electrode
located on the bottom of the cell.
2 Protection cover Protects the measurement cell and flat sensor.
3 Lithium batteries CR2032 (u2)
4 MEAS switch Switches the calibration mode to the measurement mode,
activates/deactivates the reading locking function in the
measurement mode, and starts/applies settings in the
special setting mode.
5 ON/OFF switch Turns ON/OFF the meter.
6 CAL switch Starts calibration, and switches items/settings in the special
setting mode.
7 Waterproof gasket Makes the meter waterproof.
8 Strap eyelet A strap can be attached here.
910 11 12 13
14 15
1
2
3
45
6
7
8

3
9 MEAS icon Blinks until the measured value is stabilized, and lights steadily when the measured value is settled, while the
reading locking function is active.
10 CAL icon Blinks during calibration, and lights steadily when calibration
is finished.
11 Battery alarm icon Lights up when the batteries are low and need to be
changed.
12 Temperature alarm
icon Blinks when the measuring environment temperature does not meet the specified operating temperature (5qC to 40qC).
13 Stability icon Lights up when the measured value is stabilized.
14 Measured value
display Displays a measured, set, or status value.
15 Measurement unit
display
A unit symbol lights up corresponding to the value displayed
on the measured value display (14). For conductivity, “S/cm”
or “S/m” is selectable (refer to page 16). “%” lights up for
converted salt concentrations, and “ppm” lights up for con-
verted TDS. The default setting is “S/cm”.
No. Name Description

4
3 Handling Precautions
JMeter and sensor
zThe sensor is a consumable part. If it becomes damaged or its
performance deteriorates, replace it with a new one (the sensor can not
be repaired).
zDo not swing the meter and sensor by holding a strap.
zTo ensure the waterproof performance, confirm the followings when
attaching the sensor.
- The waterproofing gasket is clean and undamaged.
- The waterproofing gasket is seated properly in the groove with no
twisting or warping.
- The meter and sensor are not deformed.
zNeither the meter nor sensor is waterproof by itself.
The sensor must be securely mounted on the meter
before use.
zDo not drop the meter or apply excessive force to it.
zDo not leave the meter in areas of direct sunlight or high temperature/
humidity.
zDo not clean the meter with organic solvents.
zThe surface of the electrode is treated specially. Take care not to touch
it with anything.

5
zDo not measure samples such as the following, since they may
damage the sensor or shorten its life: Organic solvents, oils, adhesives,
cement, alcohols, concentrated acid (0 pH to 2 pH), concentrated
alkaline (12 pH to 14 pH) or solid materials.
zIn the following cases, perform electrode surface treatment as
instructed on page 8.
࡮The sensor is used for the first time.
࡮The sensor is slow to respond, after several weeks of disuse, etc.
࡮The inside of the measurement cell is dirty.
࡮Bubbles tend to occur inside the measurement cell.
࡮The measured value is unstable.
JBattery
zKeep batteries out of reach of children. If someone accidentally
swallows a battery, call a doctor immediately.
zDo not throw batteries in fire.
zDo not attempt to recharge batteries.
zThe provided batteries are intended for use in operation checking,
therefore their service life may be short.
zThe battery alarm icon lights up when the battery voltage is low.
Replace the batteries when the battery alarm icon lights up. The meter
power may not be turned ON/OFF when the battery voltage is low.
zReplace the 2 batteries at the same time.
JOthers
zWash off any calibration fluid that comes into contact with hands or
other exposed skin. If fluid gets in eyes, rinse them immediately and
see a doctor.

6
4 Basic Handling
4.1 Inserting/removing batteries
Note
zTurn OFF the meter before inserting/removing batteries.
zAlways replace both batteries at once. Do not use old and new
batteries together.
JInserting the batteries
1. Slide both batteries into the
battery case as shown.
Be sure to use two CR2032
batteries, and put them with the plus
sides (+) upwards.
JRemoving the batteries
1. Use a ball-point pen or other tool to pry
the batteries out from the clips as
shown.
Battery
Battery
clip

7
4.2 Attaching/detaching the sensor
Note
zTurn OFF the meter before attaching/detaching the sensor.
zIf the meter is turned ON with the sensor detached, the battery
alarm may light up. In this case, turn OFF the meter and attach the
sensor, and then turn ON the meter again.
Note
zMake sure that the sensor tongue is outside the meter case.
If the tongue is inserted between the case and the connector of
the meter, it may damage the connector.
zWhen removing the sensor, do not let any water get inside the
meter. If some moisture remains on the waterproof gasket, wipe it
off carefully.
JAttaching the sensor
1. Confirm that the waterproofing gasket is
clean and undamaged.
2. Slide the sensor onto the meter so that
catch "A" on the back of the meter fits
into hole "a" on the sensor tongue as
shown.
Note
Be careful not to twist the waterproof gasket.
JDetaching the sensor
1. Lift the sensor tongue tip and slide the
sensor a little away from the meter.
2. Pull out the sensor all the way from the
meter.
aA
Waterproof
gasket
Sensor tongue Meter
Connector Meter
Good
Sensor Meter
Sensor
Wrong

8
4.3 Power ON/OFF
4.4 Storage
1. Clean the sensor with tap water and remove moisture on the sen-
sor and meter with soft cloth or paper.
2. Close the protection cover, then store the meter.
4.5 Electrode surface treatment
JPower ON
1. Press and hold the ON/OFF switch for
over 2 seconds.
The power is turned ON, and the meter
model number is displayed on the LCD.
JPower OFF
1. Press and hold the ON/OFF switch for
over 2 seconds.
The power is turned OFF.
Note
Before using the sensor for the first time, perform electrode surface
treatment.
1. Put some drops of the moistening solution into the measurement
cell.
2. Let it sit still for approximately 10 minutes.
3. Clean the measurement cell with running water.
4. Wash the measurement cell with the standard solution.
5. Perform calibration.

9
5Calibration
5.1 About calibration
JCalibration points
The following 2-type calibrations are available.
zOne-point calibration: calibration at 1.41 mS/cm
zTwo-point calibration: calibration at 1.41 mS/cm and 12.9 mS/cm (sold
separately)
“One-point calibration” is set by default.
Refer to the instructions on page 18 for switching the calibration points.
The calibration point setting and calibration result are saved after the meter
is turned OFF.
JPrecautions for calibration
zWhen using the sensor for the first time or again after several weeks of
disuse, perform electrode surface treatment, as instructed on page 8,
before calibration.
zPut an appropriate amount of the standard solution or a sample into
the measurement cell without bubbles inside. If not, the measurement
may be inaccurate.
zIf remains blinking and Err (error display)
appears, the calibration is failed.
Check that the standard solution conductivity is
correct, and perform calibration again after
cleaning the sensor well.
zIf the calibration is failed using correct standard solution(s), the sensor
may be deteriorated. Replace the sensor with new one (part No.:
3200459672).
zIn two-point calibration, confirm that the calibration operations are
completed respectively for 1.41 mS/cm and 12.9 mS/cm. The calibra-
tion operation at 12.9 mS/cm can not start until the calibration at 1.41
mS/cm is completed, and the whole calibration sequence is not com-
pleted until the calibration at 12.9 mS/cm.
Cell Cross-section of the measurement cell
Electrode
Appropriate Too little

10
5.2 One-point calibration
1. Set “One-point calibration” (refer to page 18).
2. Open the protection cover and put some drops
of the 1.41 mS/cm standard solution into the
measurement cell.
Washing the sensor with the standard solution
beforehand may provide more accurate calibration.
3. Close the protection cover and press the CAL
switch for over 2 seconds.
and blink and the calibration value is
displayed.
After the calibration is completed, and
stop blinking and light steadily.
4. Clean the sensor with tap water and
remove moisture.
5. Press the MEAS switch for 0.5 seconds to
enter the measurement mode and prepare
for measurement.
Protection
cover