3 Water Level Control
04.09.2016 Mk8 MM Expansion Features Installation and Set-Up Guide Page 53
3.7 Auxiliary Alarm Inputs
For additional safety, it is possible to retain the site’s existing float type level controls by using auxiliary
alarm inputs. The schematic below shows a guide of how to wire these alarm inputs.
Figure 3.7.i Wiring Auxiliary Alarm Inputs
Note: If any of the three alarms are not being used when auxiliary alarm inputs have been enabled, a
line voltage input should be connected to the corresponding terminals to stop a fault occurring.
The table below shows the expansion options to be set on the MM for the auxiliary alarm inputs.
Expansion Option Description Setting
1 Water level control function 1
5 Auxiliary alarm inputs 1
Note: Auxiliary alarm inputs can only be used in conjunction with an analogue sensing device such as
two capacitance probes or one capacitance and an external level sensor at minimum; please see
section 3.3 Ways of Level Sensing for more information.
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