Operation
Turbimax CUE25 / CUE26
14
Hauser
Step three:
1.
The instrument prompts for the 0.02 NTU standard with a flashing "0.02".
2.
Insert the 0.02 NTU standard into the optical well and press down until the cuvette snaps fully
into the instrument. Align the indexing ring with the arrow on the instrument.
3.
Press and hold the
F
key and fine-tune the standard to the lowest value on the display by
slowly rotating it back and forth about 5°.
4.
Release the
F
key to initiate calibration. The instrument will show a 30 second count down.
5.
When the instrument has completed calibration on the 0.02 NTU standard, it returns to the
read mode and is ready to read.
!
Note!
• If you wish to exit the calibration mode, you may do so at the end of any step simply by pressing
the
Ï
key. The instrument will store any of the values calibrated prior to exiting.
• You can cycle through the required calibration points (0.02 NTU, 10 NTU, 1000 NTU) by
pressing either the
V
or
W
keys to individually calibrate with a particular calibration standard.
• The required calibration values are set in software and cannot be changed.
Calibration error
If the calibration failed, the instrument will display the error shown below.
Calibration failure can have the following reasons:
• Bad calibration standards
• Wrong order of calibration standards
Either check the standards and recalibrate or restore the factory calibration by performing the
following operation:
1.
Push and hold the
V
key.
2.
Push and release the
F
key and then release the
V
key.
3.
The instrument will turn itself off. When it is turned on again, the error screen will be gone.
!
Note!
After restoring factory calibration, the instrument may operate with reduced accuracy until a new
calibration can be performed.
a0003815
NTU
FNU
-rd-
a0003817
NTU
FNU
CAL
ERR
