Pressure Switches With Adjustable Switching Difference - Honeywell Fema DCM-203-574 Series Assembly And Operating Instructions Manual

2. Pressure Switches with Adjustable Switching Difference ...V...-203
2. Pressure Switches with
Adjustable Switching
Difference ...V...-203
2.1 Technical Data as for 1.1
2.2 Electrical Connection as for
1.2
2.3 Pressure Connection as for
1.3
2.4 Setting
One spindle each is available for setting
the switch pressure and the switching
differential. The two spindles are arranged
concentrically. The outer, larger-diameter
spindle influences the upper switching
point. The switching differential – and thus
also the lower switching point – is changed
with the smaller, inside screw.
The action direction is indicated by the
arrow.
18
Fig. 8. Action direction
Setting sequence

Using the outer spindle, first set the
switching point (at increasing pressure)
according to the scale or pressure gauge.

Using the smaller, inside screw, then set the
switching differential (x ) and thus also the
d
reset point.
MU2B-0238GE51 R0616D