Watson-Marlow Bredel 10 - Manual (Page 39)

MAINTENANCE
39
7.8 Fitting options
7.8.1 Fitting a high-level float switch
1. Dismount the standard breather (A) on the
cover of the pump head.
2. Mount the breather (A) with high-level float
switch.
3. Connect the high-level float switch to the
auxiliary power circuit via the 2-metre long PVC
cable (2 x 0.34 mm
2
). Bear in mind that the
electrical contact of the float switch is normally
closed (NC). The knob is upwards for normally
closed operation. When the lubricant level is
(too) high the contact will open.
Specifications
*
* For use in non-explosive atmospheres
Voltage: Max. 230 V AC/DC
Current: Max. 2 A
Power: Max. 40 VA