HF scientific Micro1000 Laboratory Turbidimeter - 0-10,000 NTU - Manual (Page 19)

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Notes: 1. You must use the 0.02 NTU standard at the beginning and end of the calibration cycle
to ensure accurate calibration of the instrument.
2. During calibration, the instrument performs some system self-diagnostics. Several
warning or error messages may be displayed. If there is an error in calibration, the
associated warning or error message(s) will be displayed in the lower row of the LCD
screen. Refer to the section on troubleshooting to determine the cause of the warning or
error.
3. At any point in time during calibration, you can cycle through the required calibration
points (0.02 NTU, 10 NTU, 100,0 NTU, 1750.0 NTU, and 10000.0 NTU) by pressing
either the ◄ or ► key to individually calibrate with a particular calibration standard.
If you wish to exit the calibration mode you may do so at any time by simply pressing
the ◄ or ► key until the word “END” is shown on the lower row of the display and
then pressing the
key. However, exiting the calibration process without completing
all of the steps for calibration may cause the accuracy of the instrument to be
diminished.
6. Instrument Configuration (SETUP) Mode
The instrument allows you to configure it according to your needs at any time during normal
operation (except when you are performing an instrument calibration). This section describes how
you can customize your instrument.
You can enter the SETUP mode of the instrument by pressing either the S or T key until the
“SETUP” block is highlighted. At this point, press the key and you will either enter the SETUP
mode or be prompted to enter the security code.
Note: To skip the selection of any parameter simply press either the ◄ or ► key to continue on to the
next (or previous) section.
6.1. Setting the Scale
After pressing the key, the Scale block will be lit and the current scale (measured units) will be
displayed on the lower row of the display.
Press either the S or T keys to change the units that will be displayed during normal automatic
measurement mode. When you have selected the desired units press the key.
6.2. Setting the Ratio Mode
After pressing the key, the Ratio block will be lit and the lower row of the display will indicate
the state of the Ratio
Mode in the instrument.