Your FMA 4000 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
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 cor-
rect pin configurations. Is the pressure differential across the instrument sufficient?