NIEUWKOOP CB1000 User manual

USER MANUAL
CB1000
REFLECTOMETER RQFLEX 20

CB1000
REFLECTOMETER RQFLEX 20
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Table of contents
1 Intended use ............................................................................................................................................................................ 5
2 Getting started ..................................................................................................................................................................... 5
2.1 Description of the instrument .............................................................................................................................. 5
2.2 Package contents ................................................................................................................................................................6
2.3 Inserting the batteries .................................................................................................................................................... 7
2.3.1 Replacement of batteries ............................................................................................................................... 8
2.3.2 Saving data –Important notes ................................................................................................................ 8
2.4 Operation buttons and display .......................................................................................................................... 9
2.4.1 Operation buttons ................................................................................................................................................... 9
2.4.2 Display ................................................................................................................................................................................ 10
2.4.3 Menu items ................................................................................................................................................................... 10
2.5 Starting the RQflex® 20 the first time ......................................................................................................... 11
2.6 Settings .......................................................................................................................................................................................... 12
2.6.1 Overview ......................................................................................................................................................................... 13
2.6.2 Setting the language........................................................................................................................................ 14
2.6.3 Setting the date format ................................................................................................................................ 15
2.6.4 Setting the time format ................................................................................................................................. 16
2.6.5 Setting the date ..................................................................................................................................................... 17
2.6.6 Setting the time ...................................................................................................................................................... 18
2.6.7 Setting the auto power off time ........................................................................................................... 19
2.6.8 Setting the audible signal (ON or OFF) ....................................................................................... 20
2.6.9 Setting the acoustical countdown warning .......................................................................... 21
2.6.10 Setting the memory capacity warning
(ON or OFF) .................................................................................................................................................................. 22
2.7 Initial calibration ............................................................................................................................................................... 23
3 Measurement ........................................................................................................................................................................ 27
Method list .................................................................................................................................................................................................. 27
3.1 Add a new method ..........................................................................................................................................................28
3.1.1 Guided way ................................................................................................................................................................. 28
3.1.2 Shortcut ........................................................................................................................................................................... 30
3.2 Measuring with test kits ............................................................................................................................................ 31
Continue with the last used method ............................................................................................................ 31
Choose from method list ............................................................................................................................................ 31
Shortcut ......................................................................................................................................................................................... 32
Measurement procedures .................................................................................................................................... 33
3.2.1 Measurement procedure A ...................................................................................................................... 33
3.2.2 Measurement procedure B ....................................................................................................................... 35
3.2.3 Skip the timer ............................................................................................................................................................ 39
3.2.4 Serial measurements ...................................................................................................................................... 39
3.2.5 General notes on measurement ....................................................................................................... 40

CB1000
REFLECTOMETER RQFLEX 20
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3.3 Method details .................................................................................................................................................................... 40
3.4 Delete all methods ......................................................................................................................................................... 42
4 Result .................................................................................................................................................................................................... 43
Result list ..................................................................................................................................................................................................... 43
5 Quality assurance ........................................................................................................................................................ 46
5.1 Recalibration ....................................................................................................................................................................... 46
5.1.1 Procedure ................................................................................................................................................................................ 47
5.1.2 Calibration results ......................................................................................................................................................... 50
5.2 Checking the instrument ......................................................................................................................................... 51
5.2.1 Analytical quality assurance (AQA) ................................................................................................. 51
Monitoring of the instrument ................................................................................................................... 51
Total system monitoring ............................................................................................................................... 51
5.2.2 RQcheck procedure ......................................................................................................................................... 52
5.2.3 RQcheck results .................................................................................................................................................... 54
6 System information ................................................................................................................................................... 57
7 Maintenance of the instrument .............................................................................................................59
7.1 Handling ...................................................................................................................................................................................... 59
7.2 Cleaning the strip adapter ................................................................................................................................... 60
7.2.1 Procedure ...................................................................................................................................................................... 60
8 Trouble-shooting .............................................................................................................................................................. 61
8.1 User messages on the display .......................................................................................................................... 61
8.2 Error messages ................................................................................................................................................................. 63
8.3 Other faults ............................................................................................................................................................................ 65
9 Technical data ................................................................................................................................................................... 66
10 Accessories ............................................................................................................................................................................. 67
11 Service / Warranty ....................................................................................................................................................... 68

CB1000
REFLECTOMETER RQFLEX 20
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1 Intented use
The Reflectoquant® RQflex® 20 reflectometer is intended to be used exclusively according
to the operating manual.
The reflectometer was developed for performing analyses of chemical parameters in
water, food & beverage samples, and environmental samples using Reflectoquant® test
strips in the laboratory, on the production line or in the field. Any other use is considered to
be unauthorized.
2 Getting started
2.1 Description of the instrument
Your RQflex® 20 is a versatile, precise instrument. It is part of the Reflectoquant® system with
the components:
• instrument RQflex® 20
• Reflectoquant® tests
• test- and batch-specific barcode strip
According to the principle of reflectometry (remission photometry), reflected light from the
test strip is measured. Just as in classical photometry, the difference in intensity of emitted
and reflected light allows a quantitative determination of the concentration of specific
analytes.

CB1000
REFLECTOMETER RQFLEX 20
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2.2 Package contents
The standard contents of the Reflectoquant® RQflex® 20 Reflectometer package comprise
the following items:
1 Reflectometer inclusive strip adapter,
Cat.No.1.17246.0001
1 Recalibration set
1 Quick Guide
4 1.5-V batteries (AAA)
1 Safety Instructions
1 ABC sample cup, 1 funel and 1 glass measuring cylinder
1 box filterpaper

CB1000
REFLECTOMETER RQFLEX 20
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2.3 Inserting the batteries
Before operating the system for the first time, the batteries included in the package must be
installed.
Dispose of used batteries
in accordance with the
local regulations.
1. Remove the lid of the battery compartment on the back of the instrument by pressing
carefully in the indicated direction.
2. Insert the batteries into the compartment, heeding the + and –pole indicators.
3. Close the battery compartment.

CB1000
REFLECTOMETER RQFLEX 20
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2.3.1 Replacement of batteries
Refer to page 7 for how to replace used batteries.
Recommendation
Do not use rechargeable batteries!
2.3.2 Saving data - Important notes
Before changing the batteries, please shut down the instrument first.
Otherwise the date and time settings are lost.
During battery change, data in the RQflex® 20 reflectometer is saved for 60 seconds.
If the change time exceeds 60 seconds only date and time are lost, all stored data and
settings are still stored.
Recommendation
Replacement batteries (AAA non-rechargeable alkaline batteries, 1.5 V) must be on
hand for immediate insertion.

CB1000
REFLECTOMETER RQFLEX 20
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2.4 Operation buttons and display
2.4.1 Operation buttons

CB1000
REFLECTOMETER RQFLEX 20
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2.4.2 Display
General structure
Example
2.4.3 Menu items
The following items are displayed in the main menu:
Method List list of all stored methods
Result List list of all stored results
Settings list of instrument settings
Quality Assurancelist of all Analytical Quality Assurance options
Information list of instrument information

CB1000
REFLECTOMETER RQFLEX 20
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2.5 Starting the RQflex® 20 the first time
Before working with the RQflex® 20 insert the batteries (delivery contents).See chapter 2.3
"Inserting the batteries".
Switch on the reflectometer by pressing the
[Power On/Off] button.
The unit runs an electronic self-check test.
The serial number of the RQflex® 20 is displayed
at the bottom right.
The display then shows the main menu:
Pressing the [Up] and [Down] buttons takes the
RQflex® 20 to the different submenus.
The RQflex® 20 is supplied with English preset as the standard language setting. Before
making the first measurement you should therefore reset the unit to the language of your
choice (see section 2.6.2, "Setting the language").
The date and time should be set (see sections 2.6.3 and 2.6.4, "Setting the date" and
Setting the time").
The instrument needs to be calibrated before the first measurement is performed
(see section 2.7, "Initial calibration").

CB1000
REFLECTOMETER RQFLEX 20
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2.6 Settings
Switch on the reflectometer by pressing the
[Power On/Off] button.
The unit runs an electronic self-check test.
The display then shows the main menu:
Select [Settings] in the [MAIN MENU] using
the [Up] and [Down] buttons.
The display shows:
Confirm your selection by pressing [OK] or [Right (Next)].
The display shows:

CB1000
REFLECTOMETER RQFLEX 20
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2.6.1 Overview
The following items are displayed in the settings menu:
Languages for setting the desired language
(EN - DE - FR - ES - PT - JP - CN)
Date Format for setting the desired date format
(yyyy-mm-dd - dd.mm.yyyy - mm/dd/yyyy)
Time format for setting the desired time format
(24 h - am/pm)
Date for setting the current date
Time for setting the current time
Auto Power for setting the desired power off time
Off Time (00 (= Off) - 15 - 30 - 45 - 60 min)
Audible Signal for setting the audible alert
(On / Off)
Acoustic. for setting the desired duration of the
Countdown warning signal for the countdown
Warning (00 (= Off) - 5 - 10 - 15 - 20 - 25 - 30 sec) d
Memory for setting the memory capacity warning
Capacity (On / Off)
Warning

CB1000
REFLECTOMETER RQFLEX 20
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2.6.2 Setting the language
Select [Languages] using the [Up] and [Down]
buttons if necessary.
The display shows:
Confirm your selection by pressing [OK] or [Right (Next)].
The display shows:
Select the desired language using the [Up] and
[Down] buttons.
Confirm your selection by pressing [OK] or [Right (Next)]
and return to [SETTINGS].
Press the [Left (Back)] button to return to [MAIN MENU].
Abort:
Press the [Left (Back)] button to abort if desired, and return
to [SETTINGS].

CB1000
REFLECTOMETER RQFLEX 20
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2.6.3 Setting the date format
Select [Date Format] using the [Up] and
[Down] buttons.
The display shows:
Confirm your selection by pressing [OK] or
[Right (Next)].
The display shows:
Select the desired date format using the [Up]
and [Down] buttons.
Confirm your selection by pressing [OK] or
[Right (Next)] and return to [SETTINGS].
Press the [Left (Back)] button to return to
[MAIN MENU].
Abort:
Press the [Left (Back)] button to abort if
desired, and return to [SETTINGS].

CB1000
REFLECTOMETER RQFLEX 20
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2.6.4 Setting the time format
Select [Time Format] using the [Up] and
[Down] buttons.
The display shows:
Confirm your selection by pressing [OK] or
[Right (Next)].
The display shows:
Select the desired time format using the [Up]
and [Down] buttons.
Confirm your selection by pressing [OK] or
[Right (Next)] and return to [SETTINGS].
Press the [Left (Back)] button to return to
[MAIN MENU].
Abort:
Press the [Left (Back)] button to abort if
desired, and return to [SETTINGS].

CB1000
REFLECTOMETER RQFLEX 20
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2.6.5 Setting the date
Select [Date] using the [Up] and [Down] buttons.
The display shows:
Confirm your selection by pressing [OK] or
[Right (Next)].
The display shows:
Select the desired date using the [Up]
and [Down] buttons.
Change the column with the [Left (Back)] and
[Right (Next)] buttons.
Confirm your selection by pressing [OK] or
[Right (Next)] and return to [SETTINGS].
Press the [Left (Back)] button to return to
[MAIN MENU].
Abort:
Press the [Left (Back)] button to abort if
desired, and return to [SETTINGS].

CB1000
REFLECTOMETER RQFLEX 20
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2.6.6 Setting the time
Select [Time] using the [Up] and [Down] buttons.
The display shows:
Confirm your selection by pressing [OK] or
[Right (Next)].
The display shows:
Select the desired time using the [Up]
and [Down] buttons.
Change the column with the [Left (Back)] and
[Right (Next)] buttons.
Confirm your selection by pressing [OK] or
[Right (Next)] and return to [SETTINGS].
Press the [Left (Back)] button to return to
[MAIN MENU].
Abort:
Press the [Left (Back)] button to abort if
desired, and return to [SETTINGS].

CB1000
REFLECTOMETER RQFLEX 20
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2.6.7 Setting the power off time
Select [Auto Power Off Time] using the [Up]
and [Down] buttons.
The display shows:
Confirm your selection by pressing [OK] or
[Right (Next)].
The display shows:
Possible selections:
(00 (= Off) - 15 - 30 - 45 - 60 min)
Select the desired auto power off time in minutes
using the [Up] and [Down] buttons.
Confirm your selection by pressing [OK] or [Right (Next)]
and return to [SETTINGS].
Press the [Left (Back)] button to return to [MAIN MENU].
Abort:
Press the [Left (Back)] button to abort if desired,
and return to [SETTINGS].

CB1000
REFLECTOMETER RQFLEX 20
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2.6.8 Setting the audible signal (ON or OFF)
Select [Audible Signal] using the [Up] and
[Down] buttons.
The display shows:
Confirm your selection by pressing [OK] or
[Right (Next)].
The display shows:
Select the desired audible alert using the [Up]
and [Down] buttons.
Confirm your selection by pressing [OK] or
[Right (Next)] and return to [SETTINGS].
Press the [Left (Back)] button to return to
[MAIN MENU].
Abort:
Press the [Left (Back)] button to abort if
desired, and return to [SETTINGS].

CB1000
REFLECTOMETER RQFLEX 20
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2.6.9 Setting the acoustical countdown warning
Select [Acoustic. Countdown Warning] using the [Up]
and [Down] buttons.
The display shows:
Confirm your selection by pressing [OK] or
[Right (Next)].
The display shows:
Possible selections:
(00 (= Off) –5 –10 -15 - 20 - 25 - 30 sec)
Select the desired duration of the warning signal
in seconds using the [Up] and [Down] buttons.
Confirm your selection by pressing [OK] or [Right (Next)]
and return to [SETTINGS].
Press the [Left (Back)] button to return to [MAIN MENU].
Abort:
Press the [Left (Back)] button to abort if desired,
and return to [SETTINGS].