Draper Expert 10645 Manual
Draper
Ikke kategoriseret
Expert 10645
Læs nedenfor 📖 manual på dansk for Draper Expert 10645 (2 sider) i kategorien Ikke kategoriseret. Denne guide var nyttig for 4 personer og blev bedømt med 5.0 stjerner i gennemsnit af 2.5 brugere
Side 1/2
EN
Original Instructions
Version 3
Version 1: January 2013
First release
Version 2: November 2023
Template change
Version 3: September 2024
Template change
Read this manual in full before using this product and retain it for future use. Always use the latest version of the manual.
Please visit for the latest version.drapertools.com/manuals
1. Intended Use
For accurately measuring the strength of battery uid,
antifreeze and screen wash. Any other application beyond
the conditions established for use will be considered misuse.
Draper Tools accepts no responsibility for improper use of
this product.
2. Specication
Stock No. 10645
Part No. RFR
Measuring range of screen wash 0 – -40°C
Measuring range of anti-freeze 0 – -50°C
Measuring range of battery uid
specic gravity
1.10 – 1.40
3. GettingtoknowyourRefractometer
(1) Cover plate
(2) Main prism assembly
(3) Calibration screw
(4) Rubber grip
(5) Focus adjustment
(6) Eyepiece
(1)
(2)
(3)
(4)
(6)
(5)
10645
REFRACTOMETER
Draper Tools
Draper Tools Limited
Hursley Road, Chandler’s Ford
Eastleigh, Hampshire, SO53 1YF UK
Website: drapertools.com
Email: sales@drapertools.com
Product Helpline: +44 (0) 23 8049 4344
Telephone Sales Desk: +44 (0) 23 8049 4333
General Enquiries: +44 (0) 23 8026 6355
© Published by Draper Tools Limited
Delta International
Delta International BV
Oude Graaf 8
6002 NL
Weert
Netherlands
4. Maintenance
WARNING!
– When testing battery uid do not allow
the uid to come in contact with eyes or skin. Wear
appropriate PPE as specied in the relevant Safety
Data Sheet.
• This is an optical instrument, it requires careful handling
and storage. Failure to do so can result in damage to the
optical components and its basic structure. With care,
this instrument will provide years of reliable service.
• Do not expose the instrument to damp working conditions
and do not immerse the instrument in water. If the
instrument becomes foggy, water has entered the body.
Call a qualied service technician or contact your dealer.
• Clean the instrument between each measurement using a
soft, damp cloth. Failure to clean the prism on a regular
basis will lead to inaccurate results and damage to the
prism’s coating.
• Do not measure abrasive chemicals with this instrument.
They can damage the prism’s coating.
• Accurate measurement depends on careful calibration.
The prism and test uid sample must be at the same
temperature for accurate results (20°C recommended).
5. Calibration
This refractometer is a precision optical measuring device.
Before rst use it must be calibrated. This device is tted with
Automatic Temperature Compensation (ATC) and must be
initially calibrated at 20°C (68°F) ambient temperature for
both the calibration uid and the refractometer.
Open cover plate and place 2-3 drops of calibration uid
(distilled water) on the main prism (Fig.1). Close the cover
plate so the water spreads across the entire surface of the
prism without air bubbles or dry spots. Allow the sample to
temperature adjust on the prism for approximately 30
seconds before proceeding further. (This allows the sample to
adjust to the ambient temperature of the refractometer).
Hold cover plate in the direction of a light source and look into
the eyepiece. You will see a circular eld with graduations
down the centre (you may need to focus the eyepiece to clearly
see the graduations). The upper measurement eld should be
blue, while the lower up to the waterline should be white (Fig.2).
Remove the rubber cap above the calibration screw and look
into the eyepiece slowly turn the Calibration screw until the
boundary between the upper blue eld and the lower white
eld meet exactly on the waterline, shown in Fig.3. That is the
end of the calibration process.
Once calibrated, shifts in ambient temperature within the
acceptable range between 10°C-30°C should not aect
accuracy. Recalibration can be conducted as required by
the user.
6. OperationandUse
Ensuring the prism and cover plate are clean and dry, place a
few drops of the sample to be tested onto the main prism, close
the cover plate and check reading. Take the reading where the
boundary line of blue and white cross the graduated scale.
The scale will provide a direct reading of the concentration
on the relevant scale to the uid being measured. After use,
clean and dry the prism face and cover plate. Always store in
carry case when not in use and do not drop or immerse in
uid as this will irrevocably damage the refractometer.
Fig. 1
Fig. 3
Fig. 4
Fig. 2
Produkt Specifikationer
| Mærke: | Draper |
| Kategori: | Ikke kategoriseret |
| Model: | Expert 10645 |
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