Functions
7.14 Reflexor
FUS1010 IP65 NEMA 4X & IP66 NEMA 7
142 Operating Instructions, 01/2013, A5E02951520-AC
Mounting Sensors
Two mounting configurations are available in the Reflexor Mode:
● Adjacent mounting locates the two sensors alongside each other using a single mounting
chain or strap.
● In-Line mounting locates the two sensors axially along the pipe using two mounting
chains or straps.
① ③ C2 Sensors Connect to DN on flow meter
② Flow Direction ④ Connect to UP on flow meter
Figure 7-3 Adjacent Sensor Mounting
On inline mounted metal pipes the Receive Sensor is always located downstream of the
Transmit Sensor. On plastic pipes the Transmit Sensor is always located downstream of the
Receive Sensor.
Table 7- 12 Inline Metal and Plastic Pipe Cable Connections
Sensor Metal Pipe Plastic Pipe
C2 Sensor (A) DN UP
C2 Sensor (B) UP DN
In both cases, the cable entry will be on downstream side. Adjacent mounting will provide the
maximum sensitivity to flow. Refer to the appropriate sensor installation drawing for the
191N1S (Installation Drawing 191N1S-7).
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