Bronkhorst IN-FLOW User Manual download pdf (Page 30)

BRONKHORST HIGH-TECH B.V.

page 30

9.17.022

5 Digital instrument

See document number 9.17.023 for detailed description.

This document is available as PDF on the Multibus documentation/software tool CD.

6 Interface description

For a description of the available interfaces see document numbers:

9.17.024 for FLOW-BUS

9.17.025 for PROFIBUS-DP

9.17.026 for DeviceNet

9.17.027 for RS232

9.17.035 for Modbus

9.17.063 for EtherCAT

These documents are available as PDF on the Multibus documentation/software tool CD.

7 TROUBLESHOOTING

7.1 General

For a correct analysis of the proper operation of a flow/pressure meter or controller it is recommended to

remove the unit from the process line and check it without applying fluid supply pressure. In case the unit is

dirty, this can be ascertained immediately by loosening the compression type couplings and, if applicable the

flange on the inlet side.

Bronkhorst High-Tech B.V. does not recommend to open the housing, but in case that the housing has to be

opened, it should be done with great care, because the connection of the fieldbus and main p.c.board is

accomplished by a small flatconductor cable.

Energizing or de-energizing of the instrument of the instrument indicates whether there is an electronic

failure.

After that, fluid pressure is to be applied in order to check behaviour.

If there should be suspicion of leakage, do not check for bubbles with a leak detection liquid as this may lead

to a short-circuit in the sensor or p.c.board.

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Bronkhorst IN-FLOW User Manual Page 30