Sibata AQUAB AQ-201 User manual

CODE 080560-201
Handy Water Meter
"AQUAB"
Model AQ-201
[ For Measurement of Residual Chlorine ]
Thank you for purchasing this product.
This operation manual describes
important precautions for preventing
accidents as well as procedures for
handling the product.
Read this operation manual and the
attached warranty thoroughly before
use, and use the product safely and
correctly.
After reading this operation manual
and the warranty, keep them handy
for future reference.
2003-2022 SIBATA SCIENTIFIC TECHNOLOGY LTD.

2
Table of Contents
Page Page
Before Use
Finding the Combined Residual
Chlorine Concentration
About This Operation Manual Memory Check Mode
Contents of Package User Calibration Mode
Safety Precautions Troubleshooting
About This Product
Error Displays
Names of Parts
Inspections and
Maintenance
Powder Reagents Main Specifications
Using the Product
Consumables and
Related Parts
Workflow
Warranty and Repairs
Measurement Precautions
Inquiries
Mode Selection
Inserting the Batteries
Measurement
Be Sure to Read This
Page 4 lists important precautions for ensuring the safe use of the product, and for
preventing harm to you and other people and damage to property. Be sure to
thoroughly read these precautions before use and observe them.

3
Before Use
Read and understand the instructions given in
this operation manual before using the product.
Keep this operation manual handy for future
reference.
Familiarize yourself with the safety precautions
given in this operation manual and observe them.
Observe usage procedures that are suitable for
the product and are specified in this operation
manual.
Be sure to observe the above instructions.
Failure to do so may result in an accident or injury.
About This Operation Manual
Information in this operation manual is subject to change without notice in the interest of
product improvement.
Every effort has been made to ensure that the information in this operation manual is correct.
If you discover any errors or omissions, however, please contact your Sibata representative.
The copyright of this operation manual belongs to Sibata Scientific Technology Ltd.
This operation manual, or any part thereof, may not be reproduced, reprinted, or altered in
any form without prior written permission from Sibata Scientific Technology Ltd.
Contents of Package
Check the package for the following items before using the product.
AQUAB body ·······1 unit Sample cells ····················2 pcs
Powder reagent ···25 packs AAA batteries
(for checking operation) ····· 4 pcs
Carrying case ······1 pc Warranty ························· 1 copy
Quick Manual ······1 copy
Note: If any of the items are damaged or missing, contact the distributor where you purchased
the product.

4
Important
WARNING
CAUTION
Do Not Touch
Mandatory
Safety Precautions
The precautionary information in this operation manual is provided to ensure the safe use of the
product and to prevent property damage and injury to you and other people. It is all important for
ensuring safety, so be sure to read it thoroughly before using the product and observe it during
use.
Graphical Symbols
This operation manual uses various graphical symbols to indicate warnings and instructions.
The meanings of these graphical symbols are as follows. Fully understand the following
descriptions before reading the subsequent sections.
Indicates a potentially hazardous situation which, if not avoided,
could result in serious injury or possibly death.
Indicates a potentially hazardous situation which, if not avoided,
may result in minor to moderate injury or equipment damage.
Examples of Labels
indicates a forbidden action (that must not be done).
Specific details are given in or near the symbol.
The label on the left indicates that touching is prohibited.
indicates a mandatory action (that must be done).
Specific details are given in or near the symbol.
The label on the left indicates something that must be done.
Precautionary Information
Do Not Touch
Do not touch or operate
the product with wet
hands.
Doing so may result in
electric shock.
Do Not Touch
Do not handle batteries
with wet hands.
Doing so may result in
electric shock.
WARNING

5
Mandatory
Handle sample cells
carefully to prevent
them from getting
damaged.
Sample cells are partially
made of glass. Failure to
handle them carefully may
result in injury.
Prohibited
Do not use a power
supply not specified in
this document.
Doing so may damage the
product.
Prohibited
Do not allow water or
chemicals to come in
contact with the
product.
Doing so may result in
electric shock or damage
to the product.
Prohibited
Do not put your fingers
or foreign objects in the
product.
Doing so may result in
injury, electric shock, or
damage to the product.
Prohibited
Do not use the product
near flammable objects.
The product is not
explosion-proof. Doing so
may result in fire or
explosion, which is very
dangerous.
Prohibited
Do not install the
product in locations
with an ambient
temperature outside the
range 5 °C to 40 °C.
Doing so may damage the
product.
Mandatory
If the product becomes
abnormally hot or emits
sound or smoke, stop
using it immediately.
Failure to do so may result
in an accident or injury.
Mandatory
If you hear thunder
during use outdoors,
stop using the product
immediately.
Failure to do so may result
in electric shock or injury.
WARNING

6
Prohibited
Do not let powder or
other reagents get into
your eyes or mouth.
Doing so may cause
physical abnormalities.
Prohibited
Do not use powder or
other reagents for other
applications.
Doing so may result in an
accident.
Note: If these get into your eyes or mouth,
see page 11 for remedies.
Prohibited
Do not swing the
carrying case or
strongly tug the strap.
Doing so may result in an
accident or injury.
Prohibited
Do not leave the
product within reach of
children.
Doing so may result in an
accident or injury.
Do Not
Disassemble
Do not attempt to
disassemble, repair, or
modify the product by
yourself.
Doing so may result not
only in damage to the
product, but also in electric
shock or fire.
WARNING

7
Prohibited
Do not use the product
in environments where
there is condensation
or condensation is likely
to form.
Doing so may damage the
product.
Mandatory
When not using the
product for a long time,
remove the batteries
from the compartment.
Failure to do so may
damage the product.
Prohibited
Do not subject the
product to vibrations or
shocks or drop it.
Doing so may damage the
product.
Prohibited
Do not place any
objects on top of the
product.
Doing so may result in an
accident or damage to the
product.
Prohibited
Do not place the
product in locations that
are subject to direct
sunlight or that reach
high temperatures.
Doing so may damage the
product.
Prohibited
Do not wipe the product
with organic solvents or
chemicals that will
damage its surface.
Doing so may damage the
product.
CAUTION
In addition to the precautions
given here, precautionary
information is provided
throughout this operation manual.
Be sure to read it thoroughly
before using the product.

8
About This Product
This product is an easy-to-use handy water
meter.
The test water is colored with a reagent,
and the concentration of residual chlorine
is measured by the amount of transmitted
light. Being compact and easy to handle,
the AQ-201 makes it suitable for use in
on-site measurement.
For a meter in this class, it employs a large,
easy-to-view, original LCD screen so that
just enough information can be displayed.
In addition, it is provided with handy
functions including a memory function for
saving up to 99 measurement values, a
user two-point calibration function, and an
auto OFF function for automatically turning
the power OFF.
The AQ-201, dedicated to measurement of
residual chlorine, can measure the
concentration of free residual chlorine in
tap water in the range 0.00 to 2.00 mg/L.
Names of Parts
AQUAB Body Front
Easy-to-carry, compact body
Auto OFF function
Carrying case handy for carrying around
User calibration mode
Saves up to 99 measurement values
Cell cover
Display
[MODE] key [ZERO] key
[MEAS.] key
Metal strap attachment
Measurement
chamber
Triangle mark
[ When cell cover is open ]

9
Function of Operation Keys
Name Function
[ZERO] key
When this key is pressed in the measurement mode, zero-point recognition
is started.
In the memory check mode or user calibration mode, it functions as the up
key.
[MEAS.] key
When this key is pressed in the measurement mode, measurement of the
test water is started.
In the memory check mode or user calibration mode, it functions as the
down key.
[MODE] key
When this key is pressed, the mode is changed as shown below.
Pressed in the measurement mode →Memory check mode
Pressed in the memory check mode →Measurement mode
Pressed in the user calibration mode →Measurement mode
Holding this key down for at least 2 seconds enters the mode selection
screen. This key functions as the enter key when selecting a mode, etc.
CLEAR
When the [ZERO] and [MEAS.] keys are held down at the same time for at
least 5 seconds, data is cleared.
Measurement mode →Clears the zero-point value.
Memory check mode →Clears all measurement data.
User calibration mode →Clears user-specified conversion equation.
AQUAB Body Rear and Sample Cell
Battery cover
Cap
Reference
line
Triangle mark
Sample cell
Battery compartment
Connector for calibrations
by the manufacturer
(Note: This connector cannot be
used by customers.)
Battery lock

10
Carrying case
Quick manual
Powder
reagent
Display
No. Name Description
(1) Main display This displays measurement values, various setting values, error
messages, and other information.
(2) Unit display In this water quality photometer, concentration is displayed in terms
of mg/L.
(3) Display in memory
check mode This is displayed and flashes in the memory check mode.
(4) Number of memory
entries and entry No.
In the measurement mode, the memory No. used for saving the
measurement results (the number of saved measurement values) is
displayed (When the number exceeds 99, data is overwritten
starting from "01."). In the memory check mode, the memory No.
displayed is indicated.
(5) Display in
measurement mode This is displayed in the measurement mode.
(6) Display at zero-point
recognition
This is displayed when the zero-point recognition has been
completed.
(7) Display in user
calibration mode
This is displayed when the mode is switched to the user calibration
mode.
(8) Display at user
calibration setting
This is displayed when the concentration conversion equation has
been changed in the user calibration mode.
(9) Display at mode
selection This is displayed when the screen is at mode selection.
(10) Remaining battery
power
The remaining battery power is displayed graphically in three
stages.
Other
There is sufficient
battery power left.
The remaining battery
power is approximately
50 %.
The batteries have run
out. Replace with new
batteries.