Xylem TB500 ONLINE TURBIDITY ANALYZERS User Manual
Page 26

TB500 (2/07)
Rev. 1.0
22
7.11 Setting the Units
The most common unit is NTU (Nephelometric Turbidity Units) however the instrument
can display in FNU (Formazin Nephelometric Units). All instruments are shipped from
the factory set in NTU mode. Make a selection using the
t and u buttons then press the
↵ button.
7.12 Ultrasonic Cleaning (Model TB504-WL & TB504-IR)
This allows for a selection menu to turn off the ultrasonic cleaning function if desired. The
default mode is On. Make a selection using the
t and u buttons then press the ↵ button.
7.13 RS-485 Parameters
For instruments manufactured on or after June 2003, the following menus can be used to
modify the RS-485 parameters. These menus will only appear if the RS-485 is enabled
(see 7.1). The default is 8 Bit, no (nOnE) Parity, 1 Stop Bit. Make selections using the
t
and
u buttons then press the ↵ button to move to the next menu.
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