em-tec BioProTT - Connecting and Powering Up the System

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BioProTT

Flow Measurement System Version 1.00 page 24 of 75

6.2.3 Connecting and powering up the system

The power supply must be current limited to max. 6.25 A and

continuously short circuit proof.

Please ensure that all national requirements with respect to EMC and

electrical safety regulations are met for when connecting a power

supply that was NOT originally shipped.

The BioProTT™ flow meter shall be powered by 24 V DC (±10%).

The power supply shall deliver at least 300 mA.

Please note: the flow meter can be powered with the provided power supply or with

another external power supply meeting the above mentioned specifications. If the power

supply does not meet the specifications above the protection provided by the device may be

impaired.

For installation with provided power supply observe the following steps:

1. Connect power supply

2. Connect Clamp-On Transducer to BioProTT

flow meter.

3. Connect the 4-20 mA and/or digital serial output to your data acquisition system. The

connectors should be firmly tightened. Unused connector sockets should be covered

with provided flexible grip caps.

4. Power on the device with the switch. Wait approx. 15s until the system is completely

initialized. The system will automatically start to transfer measurement values.

Please note: The Current loops can either be powered through the process control

system or via the flow meter. The wiring needs to be done as show in chapter

INITIAL SET UP

5. Clamp transducer around tubing (for details see chapter INSTALLATION OF THE

BIOPROTTTM CLAMP-ON TRANSDUCER). An arrow on the sensor lid indicates

the flow direction; make sure that the sensor is oriented in the flow direction

otherwise negative readings occur. Make sure the tubing size, material and conditions

fit calibration data and the sensor lid is closed (locked in).

6. If not yet done fill tubing with liquid. You will see an increase of the RSS value.

7. Make sure that the liquid is not in motion and press the (zero) Offset adjust button.

8. The flow measurement system is now ready for use.