Operating manual PMF/GMF Page 15 of 37 B0343
3.5.5.3 Oscillating drive "O"
The eccentric stroke required for the oscillating drive is calculated with the following
formula:
h = 2 x L x π x n
1
x i x n
-1
h Eccentric stroke mm
L Rocker arm length mm
n
1
Number of strokes of the pump elements min
-1
i Transmission ratio
n Drive shaft speed min
-1
Transmission ratio i:
3.5.6 Filling level monitoring specification
The (optional) filling level monitoring is characterised by the following technical data:
Switching power max. 40 W / 60 VA
Switching voltage max. 230 VUC
Switching current max. 0,5 A
Protection class DIN EN 60529 IP65
Connection Threaded terminals
Cable inlet M16x1,5
Wire cross-section 0.5 … 1,5 mm²
Connecting diagram:
Reservoir full Reservoir empty
When inductive or capacitive loads are to be connected, appropriate
protective devices (diode, RC-element, varistor) have to be installed