Operation
Turb 2000 Series
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3 Operation
This process turbidimeter allows for the on-line measurement of the turbidity of process water,
swimming pool water and drinking water. The turbidity of the water is usually reported in Nephelometric
Turbidity Units (NTU), but may be reported in Formazin Nephelometric Units (FNU). Readings above
1100 NTU will cause the display to flash indicating an over range condition.Readings above 1100 NTU
will cause the display to flash indicating an over range condition.
During normal operation, the instrument will have the arrow beside AUTO highlighted. The current scale
is displayed on the lower row of the display and the measured reading on the upper row of the display
(see illustration below).
3.1 Routine
measurement
The following steps describe how to measure the turbidity of a sample using this instrument:
1. Apply power to the instrument and allow the unit to warm up (typically
45 minutes – 1 hour on initial commissioning).
2. When a continuous process stream is flowing through the instrument, the instrument will display the
measured turbidity level of the sample by displaying it on the LCD screen. In addition, the equivalent
signal is provided on the analog
(4-20 mA) or the digital output RS 485 - depending on the options selected.
3.2
Security access feature
The instrument is equipped with a security access code feature that can be activated in the
configuration mode. If the security feature is enabled, the screen shown in the illustration below will
appear when the
MODE/EXIT
button is pressed.
Summary of Contents for Turb 2000 Series
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