HF scientific AccUView Wastewater UV %Transmission Monitor - Manual (Page 20)

5.2 100%T Calibration Error
If the screen shown below is displayed after the 100%T calibration, the internal
diagnostics have determined that the calibration fluid requires replacement or the flow
through cuvette requires replacement. Check the calibration fluid & cuvette, then
recalibrate or restore the factory calibration see 6.1
Restoring Factory Settings. The
instrument cannot be used without performing one of these operations.
To recalibrate press the MODE key and start the calibration sequence again. To restore the
factory calibration, push and hold the
tbutton. Now push and release the ↵ then release
the
tbutton. See section 6.1 Restoring Factory Settings
AccUView Wastewater (1/09) 14
Rev. 2.9