ATAGO 4555 Instruction Manual

The following messages alert the user when an operation has failed.
The battery is low.
The ZERO button was pressed with nothing or something
other than water on the sensor.
The sample measured outside the measurement range.

Automatic Temperature Compensation

The readings are corrected, based on the temperature of the sensor, within the automatic temperature compensation range.
【Caution】
◇
Measurements may fluctuate with hot or cold samples. Wait for approximately 20 seconds to press the START button. Measurements will stabilize
once the instrument acclimates to the sample temperature.

Storage and Maintenance

Store the instrument in a dry place away from
direct sunlight. Exposure to humidity and heat
may damage the instrument.

Repair and Warranty

The instrument is warranted for one year from the date of purchase. This warranty is void if the instrument shows evidence of the following. Send the
included batteries as well if they are still in use.

Having been disassembled by unauthorized personnel

Damages to the sensor and/or sample stage

Water damage or having been dropped
Repair services are available for a fee after the warranty expires. Contact an ATAGO authorized service center for service and support.
Please have the serial number information ready when contacting a service center.
Measurement range
Sodium hypochlorite 50-500ppm
10-40℃
Resolution 1ppm / 0.1℃
About ±50ppm ±1℃
Accuracy /
Automatic temperature compensation range 10 to 40℃
Ambient temperature range 10 to 40℃
Backlight The backlight stays on for 30 seconds
after any button is pressed.
Patent Granted in Japan, United States, Germany, China and Taiwan.
TEL: 91-22-2854-4915 / 4071-3232
Headquarters: The Front Tower Shiba Koen,
customerservice@atago-india.com
23rd Floor 2-6-3 Shiba-koen, Minato-ku,
Tokyo 105-0011, Japan
TEL: 66-21948727-9 ,66-21171549
TEL: 81-3-3431-1943 overseas@atago.net
customerservice@atago-thailand.com
http://www.atago.net/
TEL: 55 16 3913-8400
customerservice@atago-brasil.com
TEL: 1-425-637-2107
customerservice@atago-usa.com
TEL: 39 02 36557267
customerservice@atago-italia.com

Error Messages

The sensor temperature is below the temperature range.
The sensor temperature is above the temperature range.
The instrument is faulty. (Replace the batteries. Contact
ATAGO if this error persists.)
Clean and dry the sample stage thoroughly, following the
"Cleaning" instructions.
Store the unit away from direct sunlight at a stable temperature
with as little fluctuation as possible.

Having been misused and/or operated outside the environmental specifications

Leakage from batteries other than those included with the unit

Specifications

Output NFC Forum Type 4 Tag , ISO/IEC 14443 Type A
Output category : Date Time,CONC[ppm], Temp [degC]
(e.g.) 2017/08/17 09:30:45, 503, 20.4
Maximum number of data history 100
Sample volume At least 0.6mL
Measurement time Approx. 2 seconds
Power supply Two (2) AAA alkaline batteries
International Protection class IP65
Dimensions and weight 55 (W) x 31 (D) x 109 (H)mm, 100g (main unit only)
TEL: 86-20-38108256
info@atago-china.com
TEL: 7-812-777-96-96
info@atago-russia.com
TEL: 234-707-558-1552
atagonigeria@atago.net
TEL: 7-727-257-08-95
info@atago-kazakhstan.com
2106K Printed in Japan
4555-E02
Hypochlorous acid Meter
PAL-Hypochlorous Acid (COVID-19)
LCD
Measurement results,
prism temperature,
remaining battery charge,
etc., are displayed.
The displayed value is an
example.
START button
(Power button)
Press to take measurements
and hold down to turn off
the display.
R Button
Press to restore default
settings for the Offset
Feature.
Batterycompartment
Place and remove batteries from here.
 Main unit ........ 1  Instruction Manual (this book) ..... 1
AAA alkaline batteries are included. Remove the tape from the battery compartment before inserting the batteries.
ATAGO instruments are rigorously inspected to ensure each unit meets the highest standards of quality assurance.
Thank you for purchasing the instrument. Carefully read and follow all instructions. Keep this manual for future reference.

Safety Instructions

Read and follow all safety instructions before operating the instrument. Failure to comply with the following instructions may result in personal injury or
property damage.
◇ Ensure safety when handling hazardous materials. Observe precautionary measures and use protective equipment, Be aware of the hazards of such
chemicals and emergency response guidelines.
◇ ATAGO may not be held liable for any injury or damage arising in connection with handling of hazardous materials during the use of the instrument.
◇ Do not drop the instrument or subject it to strong physical shock.
◇ Do not attempt to repair, modify, or disassemble the instrument.
◇ Carefully read this manual to have basic knowledge of the function of each component.
◇ ATAGO is not liable for any loss and damage caused by the measurement and use of this instrument.
◇ Some acids may corrode the sensor and/or metal sample stage, which may cause erroneous measurements.
◇ Do not use metal tools, such as a spoon, as they may scratch the sensor, resulting in erroneous measurements.
◇ Do not use water above 50℃ to rinse the instrument.
◇ Only use the specified battery type. Observe proper polarities, properly aligning the anodes and cathodes.
◇ Store the instrument away from direct sunlight/heat sources and excessive amounts of dust/debris.
◇ Do not expose the instrument to a rapid change in ambient temperature.
◇ Do not subject the instrument to strong vibration.
◇ Do not subject the instrument to extreme cold temperature.
◇ Do not place the instrument under anything heavy.
◇ Loosen the battery compartment cover for air transportation.
<International Protection Classification IP65>
◇ The instrument is water-resistant, not waterproof, and should not be submerged.
<Chemical Resistance of Body Case>
◇ The body case is made of resin. Do not expose it to water vapor. Some solvents may compromise the structural integrity of the instrument.
Cat.No.4555
Instruction Manual
Parts
Sample stage
Apply water and
samples on the glass
prism located in the
center of the sample
stage.
ZERO button
Press to perform
zero-setting.
START button &
ZERO button
Press to set date, time,
and delete data history.
Lanyard hole
Image is for explanation purposes only. It may be
different than the actual product purchased.
Contents
 AAA batteries ........... 2

Introduction