Calibration Mode; Factory Calibration Reset; Technical Data - Thermo Scientific AQUAfast AQ3140 COD User Manual

Calibration Mode

Factory Calibration Reset

Resetting the user calibration to the original factory calibration will reset all methods and ranges .
A user calibrated method is indicated by a "Cal" symbol while the test result is displayed .
Cal
RESULT
To reset the calibration press both the [MODE] and [ZERO/TEST] key and hold .
Zero
Mode
Test
Switch the unit on using the [ON/OFF] key .
On
Release the [MODE] and [ZERO/TEST] keys after approx . 1 second .
Off
The following messages will appear in turn on the display:
SEL
CAL
The factory setting is active .
(SEL stands for Select)
or:
SEL
cAL
Calibration has been set by the user .
(If the user calibration is to be retained, switch the unit off using the [ON/OFF] key).
Calibration is reset to the factory setting by pressing the [MODE] key .
Mode
The following messages will appear in turn on the display:
SEL
CAL
On
Switch the unit off using the [ON/OFF] key.
Off
Version 1 02/2017
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Technical Data

Technical Data
Instrument double wavelength, automatic wavelength selection,
direct reading colorimeter
Light source: LEDs, interference filters (IF) and photosensor in transparent cell chamber.
Wavelength specifications of the IF:
430 nm = 5 nm
610 nm = 6 nm
Wavelength accuracy ± 1 nm
Photometric accuracy* 3% FS (T = 20° C – 25° C)
Photometric resolution 0 .01 A
Power supply 4 batteries (AAA/ LR 03)
Operating time 17hr operating time or 5000 test measurements in continuous mode when
display backlight is off
Auto-OFF automatic switch off
10 minutes after last keypress
Display backlit LCD (on keypress)
Storage internal ring memory for 16 data sets
Time real time clock und date
Calibration user and factory calibration
resetting to factory calibration possible
Dimensions 155 x 75 x 35 mm (LxWxH)
Weight approx . 260 g (incl . batteries)
Ambient conditions temperature: 5 – 40°C
rel . humidity: 30– 90% (non-condensing)
Waterproof as defined in IP 67
CE Certificate for Declaration of CE-Conformity
*measured with standard solutions
To ensure maximum accuracy of test results, always use the reagent systems supplied by the instrument manufacturer .
AQ3140 COD Colorimeter PROFORMA User Guide
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