System Monitor PSM 2
REV 1A – Software V3 Page 15
7.2 Submenu Tank
Needed interface/component: CMT2
7.2.1 Features of Tanks
By touching on one of the tank graphics, the volume indication changes between
percentage, litres, and a no-volume display. If a tank is configured for a DFS Flow
Sensor, the percentage volume can be changed manually to the new level by tapping
on the name of the tank underneath the graphic. This will bring up another screen
where you can enter the new level, i.e. enter 100% when filling the tank completely.
For a water maker, we recommend a tank size of 100 times the hourly water making
capability.
7.2.2 Power save Mode CMT2
To reduce the current consumption when using ultrasonic sensors, which draw approx.
50mA per sensor, the “Power save” mode can be activated.
The Power save mode is activated as soon as all PSM2 system monitors connected
are in sleep mode (display off). At that point, the measuring changes from continuous
to a cyclic routine. If the power supply voltage is between 11.5V and 13 V (23 V and
26 V), a measurement is taken every 30 minutes with a duration of 5 minutes. If the
power supply voltage drops below 11.5 V (23 V), a 5-minute measurement is made
once every 2 hours. Above 13V (26 V) the power save mode is switched off
automatically. Below 10V no measurement is taken.
If the system is in Power save mode, a measuring cycle can be initiated as soon as
you activate the tank menu to obtain up-to-date volumes.
During periods where no measurements are being taken, the last measured results are
shown.
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