Aquametrix AM-TBR Turbidimeter User Manual - Manual (Page 23)

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7. Instrument Configuration (CONFIG mode)
The instrument has been designed to provide the ability to customize the instrument according to
needs at any time during normal operation. This mode has been split into sub-menus to facilitate
instrument configuration. This section describes how to use each of the sub-menus to configure
the instrument. While in the configuration mode, the instrument has a time-out feature that
automatically returns the system operation to the AUTO mode after a fifteen (15) minute period.
Enter the CONFIG mode of the instrument by pressing the MODE/EXIT button until the arrow
beside CONFIG is illuminated, then press the
↵ button.
Note: To exit the CONFIG mode, press the MODE/EXIT button.
7.1. Selecting the Output (O/P)
The first configuration selection is the O/P. The selections are 4-20 for the 4-20 mA output, 485
for the RS-485 and OFF if no outputs are required. Select the desired output by using the and
buttons. Once the desired output has been set, press the ↵ button to accept it. The next prompts will
depend on the output selected.
7.2. Setting the 4-20 mA
If the 4-20 mA output was turned on, prompts to set the 4mA (4MA) and 20mA (20MA) turbidity
limits levels will be displayed. There is also a menu to adjust the error level (ERLV). The first
prompt will be the turbidity limit assigned to the 4 mA output level:
Select the turbidity level to assign to the 4MA using the and buttons.
The factory setting is 0.02 NTU.
Once the desired level has been set, press the ↵ button to accept it.