MACHEREY-NAGEL PF-12Plus Manual De Instrucciones página 37

5.2.10 Turbidity control (NTU-Check) (Method 958)
Use /
enter an individual NTU limit using the keypad. If this function is turned on, parallel
to each measurement the nephelometric turbidity of the sample is determined and
stored. If the turbidity is exceeding your selection, an exclamation mark is displayed next to
the measurement value. Press
5.2.11 Filter 8
Enter the wavelength of the special filter using the keypad and press
This configuration can only be performed in the service mode. To calibrate the spe-
cial filter press
5.2.12 AUTO-OFF (Method 953)
Use /
(the instrument is never turned off automatically), 5 min (factory setting), 10 min,
15 min, 20 min, 60 min. Press
5.2.13 SYSTEM-RESET
This configuration can only be made in the service mode. After an additional secu-
rity confirmation, the photometer performs a SYSTEM-RESET, thus restoring the
state of delivery.
5.2.14 PROG. UPDATE (Method 955)
In order to perform a program update, you must first install the update software
and the new program file (www.mn-net.com) on your computer. Before you start
the update procedure the photometer has to be connected to your computer via
the USB-interface. The photometer should be recognized automatically. If not, activate the
update-mode manually. Therefore confirm the program update with
update the photometer restarts.
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to turn the turbidity control on or off and press
to display the NTU value.
and confirm with
to adjust the AUTO-OFF time. Five different settings are possible: Off
09.12.2014
. Press to reset the settings.
to confirm.
to confirm. You can
to confirm.
. After a successful