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BRONKHORST HIGH-TECH B.V. 9.17.051page 4

MASS-VIEW(r) Manual - 56353 2.6 Piping

BE SURE THAT PIPING IS ABSOLUTELY CLEAN! CAUTION - DO NOT install small diameter piping on high flow rates, because the inlet jet flow will affect the accuracy. CAUTION - DO NOT mount abrupt angles directly to the inlet or outlet, especially for high flow rates. CAUTION - DO NOT mount pressure regulators directly to the inlet of gas flow meters/controllers, but allow some distance of piping (at least 25 D). Special attention should be taken at high flow rates with flow controllers.

2.7 Electrical connections

We recommend using our standard cables. These cables have the right connectors and if loose ends are used, these are coloured and marked to prevent improper connection. All cabling options can be purchased online at massflow-online.com. Please study carefully the hook-up diagram which is shown here Depending on the mode of the digital output (which can be changed through the user interface) the function of Pin 1 and 6 are: Pin 1 = RS232 TXD or RS485B (MODBUS D0) Pin 6 = RS232 RXD or RS485A (MODBUS D1) Pin 2 = analog output Pin 3 = alarm contact 1 Pin 5 = alarm contact 2 Pin 4 = 0V shared alarm contact for alarm 1/2 To use both the power supply and an analog or digital connection, you should use the optional shielded RJ-45 Y- adapter.
Available cabling options on massflow-online.com