Swan Analytical Instruments AMI Turbiwell, Руководство оператора

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AMI Turbiwell
Instrument Setup
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4. Instrument Setup
Open Sample
Flow
Open the sample flow and wait until the measuring chamber is full
and the sample flows via overflow into the waste.
Switch on power.
First, the analyzer performs a self test, displays the firmware version
and then starts normal operation.
Programming Program all parameters for external devices (interface, etc.). Set all
parameters for instrument operation (limits, alarms).
Run-in Period If the turbidity value is very low (<1 FNU/NTU) rinsing may take sev -
eral hours (~24 h). Rinse until a constant value is displayed.
4.1. Adjusting the deltaT Flow Sensor (Option)
The accuracy of the flow measurement depends on the ambient tem -
perature of the installation location. The deltaT flow sensor is factory
calibrated at 20 °C (±20 % accuracy). If the temperature is higher or
lower, the deltaT flow sensor can be adjusted.
To adjust the deltaT sensor proceed as follows:
Run in After installation let the sensor run in for at least 1h.
Determine the
flow rate
1 Put the sample outlet of the instrument into a measuring cup with
a sufficient volume for 10 min.
2 To get the flow rate in l/h, calculate the amount of water con -
tained in the measuring cup with factor 6.

The flow rate in l/h results from the multiplication of the
amount of water after 10 min by 6.
Adjust slope 1 Navigate to <Installation>/<Sensors>/<Flow>, choose <Slope>
and press [Enter].
2 If the calculated flow rate is higher than the displayed flow rate in -
crease the Slope value.
3 If the calculated flow rate is lower than the displayed flow rate de -
crease the Slope value.
4 Press [Exit] and save with [Enter].
5 Compare the calculated flow rate with the displayed flow rate.

If the flow rates are roughly equal, the adjustment is finished.
6 Else repeat steps 1 to 5.