Operation Manual

8. Sensor Installation

Before installing the sensor, please make sure that all components listed

below are included in your package.

Qty Description Item No.

1 Sensor S695 4120

1 Sealing ring No P/N

2 M12 plug C219 0059

1 Instruction manual No P/N

1 Calibration certificate No P/N

1 Measuring section A1301 ... A1308 (R thread)

A1321 ... A1328 (Flange, EN-1092-1)

A1341 … A1348 (Flange, ANSI 16.5)

The S 421 is always shipped with mounted measurement section.

Please make sure that the sensor is installed correctly to the flow

direction in the tube. For this observe the flow direction indicated on the

housing, it must match the flow direction of the compressed air or gas.

The gas flows from the inlet (long pipe section) to the outlet (short pipe

section) like illustrated in the picture below.

S 421 17