Short user's manual - ENG
Thank you for purchasing this instrument. In order to ensure that this product provides many
years of service please follow the guidance in this document. For more information, please
consult the full manual.
Unpacking
Carefully remove all of the packing material. It is recommended that the box and other
packing materials are retained so that, should the need arise, the instrument can be safely
returned to the supplier for service. Check that all parts listed below are present and that no
transit damage has occurred. If any are damaged or missing, contact the supplier
immediately.
Contents list
Quantity
1
PLR Series Refractometer
1
Power supply
1
Short user's manual
2
Spare air vent filter
1
Mains lead, Switzerland
1
Mains lead, Denmark
1
Mains lead, UK
1
Mains lead, Europe (Schuko)
Positioning the system
• Dry and indoors.
• Capable of holding the instrument's weight.
• Away from draughty or hot equipment like fans or
heaters.
• Out of direct sunlight or strong ambient light.
Do not block the air vents.
Mains connection
The power supply adapter is supplied with a moulded mains cord and plug to suit one of several socket types. For UK leads,
replace the fuse only with the type indicated on the plug.
• Voltage
110 to 230 V ~ ±10%
• Maximum current
2 A
RISK OF ELECTRIC SHOCK:
• For indoor use only.
• Must be kept dry.
• Disconnect the equipment from the mains supply before unplugging the mains lead from the instrument.
• Do not cover, designed to operate with free air convection.
• No cleaning required.
Switching on and off
Plug in the power supply and switch on the mains supply,
after startup the instrument will show a loading screen
indicating the software version. Once loaded, the
instrument will be in standby mode. To switch on, swipe a
finger or stylus across the display. After a few moments the
instrument will show the Measurement Display (or the
Setup Wizard if switching on for the first time).
This symbol is an internationally agreed indicator that the product bearing it should not be
disposed of as general waste or garbage which might end up in landfill sites, but should instead
be sent for special processing and/or recycling in those countries where appropriate legislation
and facilities are in place.
VWR® PLR Series Refractometer
EU cat. No 635-0844 / 635-0845
Item
Code
PLR1 635-0844
PLR2 635-0845
635-0853
NA
NA
635-0854
635-0855
635-0856
635-0857
• Away from potential sources of interference, such as RFI
generating equipment.
• Within reach of a power point.
• Not using a power circuit that also has large motors or
noise generating equipment connected to it.
• Frequency
50 to 60 Hz
To switch to standby mode press and hold the Menu
Button for several seconds and select Yes on the
confirmation screen. It is then safe to turn off the mains
supply and disconnect the power lead.
Manoeuvring through menus
The instrument features a capacitive, high-resolution
touchscreen display. On-screen buttons can be easily used
by simply touching the display. Use a stylus and screen
protector to keep the touchscreen clean and avoid
damage from improper use. The touchscreen should only
be used with a finger or stylus designed for use with a
capacitive touchscreen.
Alternatively, a USB keyboard can be used to select items
and navigate menus.
Setup Wizard
When switching on for the first time, after the instrument has completed its startup procedures, the Setup Wizard will
appear. First select the desired language. A list of different options will then appear:
Copy user guides to USB: Makes copies of the full User Guides to a removable USB storage device. Insert a USB removable
storage device before selecting. Full User Guides provide detailed instructions on instrument operation.
Set clock: Set the instrument to local time and set the date format.
Set reading mode: Make changes to the measurement settings.
Set record settings: Specify how reading results will be printed or saved.
Set user settings: Alter the security settings to a level suitable for the area of operation.
Select each in turn and alter the settings as desired, then press Quit to return to the Setup Wizard Menu. Each menu will be
marked by a tick after the settings are altered. Once all required settings are changed press Quit on the Setup Wizard
Menu to show the Measurement Display.
Auto Zero
When the instrument is turned on a Zero
calibration will be requested. This is to ensure that
readings are as accurate as possible. Whilst the
temperature stabilises the Reading Result section
of the screen will display a warning message.
Follow the onscreen instructions – ensure that the
prism is thoroughly clean and that the presser is then lowered.
The instrument stores the details of the last sample used for Zero calibration – typically distilled water. If a different sample
is to be used press the Change Sample button and enter the data as requested, the sample value must be entered in the
scale used for calibration.
Once the sample details are correct apply the Zero sample to the instrument prism. The complete prism surface must be
covered, 1ml is generally sufficient to achieve this. Lower the presser and press ok. Continuous readings will then be taken
until the sample stabilises The Zero point will then be set.
Caution or
Electrical
warning.
hazard.
Manufactured in United Kingdom
Many buttons feature a quick select option, indicated by
the two arrows on the right of the button. Simply touch
either arrow to cycle through the possible settings.
When in a menu, the Quit and Home buttons become
available. Press the Quit Button to return to the previous
menu. Any changes made will be saved. The Home Button
will exit to the Measurement Display, again any changes
made will be saved.
VWR International bv -
Haasrode Research Park, Zone 2020 -
Geldenaaksebaan 464 - BE-3001 Leuven -
www.vwr.com
Ver. 1
Date: 01/2022