Watson-Marlow Bredel 10 - Manual (Page 40)

MAINTENANCE
40
7.8.2 Revolution counter
For feedback of the pump revolutions to an "intelligent"
system, the pump can be provided with an inductive
sensor (A). This sensor is mounted between the two
ports.
Connection of the revolution counter:
The speed sensor can be connected via the 2 meter
long PVC cable (3 x 0.34 mm
2
).
Adjustment sensor:
The sensor (A) must be adjusted at an offset of 0.75-
1.25 mm to the rotor (B).
Where the float switch is constructed to
stop the equipment, operating has to be
arranged so that the stop function locks
out, preventing the equipment from being
re-started without re-setting. Check if the
float switch is mounted with the NC sign at
the top.
Specifications
*
* For use in non-explosive atmospheres
Voltage: 10...65 V DC
Current: Max. 200 mA