Aalborg DFM Digital User Manual
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9. TROUBLESHOOTING
9.1 Common
Conditions
Your DFM Digital Mass Flow Meter was thoroughly checked at numerous quality
control points during and after manufacturing and assembly operations.
It was calibrated according to your desired flow and pressure conditions for a
given gas or a mixture of gases. It was carefully packed to prevent damage
during shipment. Should you feel that the instrument is not functioning properly
please check for the following common conditions first:
Are all cables connected correctly?
Are there any leaks in the installation?
Is the power supply correctly selected according to requirements?
When several meters are used a power supply with appropriate current
rating should be selected.
Were the connector pinouts matched properly?
When interchanging with other manufacturers' equipment, cables and
connectors must be carefully wired for correct pin configurations.
Is the pressure differential across the instrument sufficient?