9
Place the REFO on the sample
Press Meas/ON to start continual measurement
Press Meas/ON again to end the measurement process
C8 Check Program for Standard
Check program P8 checks the function of REFO 3D. The check is performed as follows:
Place REFO on the standard
Turn on REFO with key Meas/ON
Select program
P8
with the program key
Now you can measure the standard. In addition to the ordinary single- and three-angle
measurements, the statistics function can be used, too. If the measurings are not identi-
cal with the calibration values, the calibration is bad.
D
Technical Information
D1 Service
Even a product such as the REFO 3 will benefit from occasional care and attention.
The outer casing can be cleaned using a dry cloth or mild household cleaner. Solvents
such as benzine, acetone or similar substances must NOT be used. Cleaning of the opti-
cal parts should be carried out be our customer service. Further servicing need not be
carried out.
D2 Error Messages
If your REFO-display shows one of these error messages please find out whether an op-
erator’s error has happened and repeat the measurement as described in the operating
instructions.
If the same error message appears again, contact Hach Lange service department im-
mediately and state the error message.
Error messages:
M>Ref
cause:
remedy:
signal high (e.g. too glossy)
calibrate REFO 3D to metal standard
ST20
St60
ST85
cause:
remedy:
bad standard values
check calibration values with program P9 and inform service
department, if required.
Lo.Ba
cause:
remedy:
batteries run-down
charge batteries or connect power pack
D3 Service and Addresses
For further information please contact your local service agent or the Hach Lange
branches:
Hach Lange GmbH, Willstaetterstr.11, 40549 Duesseldorf, Tel.: +49 211 5288-0
