A-96.250.231 / 130421
AMI Turbitrack
Product Description
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2.
Product Description
Application
The AMI Turbitrack is used for the measurement of relative turbidity.
It is applicable for natural water, filtering processes and the process
-
ing in water supply companies.
Measuring
Principle
Turbidity is a measure of how much of the light traveling through wa
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ter is scattered by suspended particles. The scattering of light in
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creases with increasing suspended solid. The intensity of light
scattered at 90° as a beam of light passes through a water sample is
measured and indicates turbidity of the sample.
Signal
Outputs
Two signal outputs programmable for measured values (freely scal
-
able, linear or bilinear) or as continuous control output (control pa
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rameters programmable).
Current loop:
0/4–20 mA
Maximal burden:
510 Ω
Third signal output available as an option. The third signal output can
be operated as a current source or as a current sink (selectable via
switch).
Relay
Two potential-free contacts programmable as limit switches for mea
-
suring values, controllers or timer for system cleaning with automatic
hold function. Both contacts can be used as normally open or nor
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mally closed.
Maximum load: 1 A / 250 VAC
Alarm Relay
One potential free contact.
Alternatively:
Open during normal operation, closed on error and loss of
power.
Closed during normal operation, open on error and loss of
power.
Summary alarm indication for programmable alarm values and in
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strument faults.
Input
For potential-free contact to freeze the measuring value or to inter
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rupt control in automated installations (hold function or remote-off).
Safety
Features
No data loss after power failure. All data is saved in non-volatile
memory. Over voltage protection of in- and outputs.Galvanic separa
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tion of measuring inputs and signal outputs.
