Automatic Temperature Compensation
The readings are corrected, based on the temperature of the prism, 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.
Do not use organic
solvents (paint
thinner, benzene,
gasoline, etc.) on the
plastic body case.
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.
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 prism and/or sample stage
•
Water damage or having been dropped
•
Having been misused and/or operated outside the environmental specifications
•
Leakage from batteries other than those included with the unit
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.
Specifications
Measurement range
Formic acid 0.0 to 90.0% (g/100g)
Sample volume
At least 0.3mL
10.0 to 40.0℃
Measurement time
Approx. 3 seconds
Resolution
0.5% / 0.1℃
Backlight
The backlight stays on for 30 seconds after
Accuracy
±
1.0% /
±
1℃
any button is pressed.
Automatic temperature 10 to 40℃
Power supply
Two (2) AAA alkaline batteries
compensation range
Battery life
Approx. 11,000 measurements
Ambient temperature
10 to 40℃
(when using alkaline batteries)
range
International
IP65
Protection class
Dimensions and weight
55 (W) x 31 (D) x 109 (H)mm, 100g (main unit only)
The product is in conformity with the requirements of the EMC Directive 2004/108/EC.
Patent Granted in Japan, United States, Germany, China and Taiwan.
Headquarters: The Front Tower Shiba Koen,
23rd Floor 2-6-3 Shiba-koen, Minato-ku,
Tokyo 105-0011, Japan
TEL: 81-3-3431-1943 [email protected]
http://www.atago.net/
TEL: 1-425-637-2107
[email protected]
TEL: 91-22-2854-4915 / 4071-3232
[email protected]
TEL: 66-21948727-9 ,66-21171549
[email protected]
TEL: 55 16 3913-8400
[email protected]
TEL: 39 02 36557267
[email protected]
TEL: 86-20-38108256 [email protected]
TEL: 7-812-777-96-96 [email protected]
TEL: 234-707-558-1552 [email protected]
1705K Printed in Japan
Digital Hand-held
“
”
Formic acid Refractometer
PAL-31S
Cat.No.4431
4431-E05
Instruction Manual
Parts
Contents
Main unit.........1
Instruction Manual (this book) .....1
Calibration Report .. 1
AAA batteries ...........2
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.
Introduction
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.
◇
Handle formic acid in well ventilated areas only.
◇
When handling formic acid, take precautionary measures such as wearing goggles, gloves, and masks to avoid contact with eyes and skin and to avoid
inhaling any vapor.
◇
ATAGO may not be held liable for any injury or damage arising in connection with handling of formic acid 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 glass prism and/or metal sample stage, which may cause erroneous measurements.
◇
Do not use metal tools, such as a spoon, as they may scratch the prism, 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 PBT resin. Do not expose it to water vapor or solvents. See the list of
“
Solvents Harmful to Body Case.
”
Press to take measurements and
hold down to turn off the display.
START button
Place and remove batteries
from here.
Battery compartment
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.
Lanyard hole
Measurement results, prism
temperature, and remaining battery
charge are displayed.
The displayed value is an example.
LCD
