Can be used with:
The control unit can monitor and report on two water tank monitors which are functionally the same. Water passing out of a tank turns a little bucket wheel and fractions of rotation of this wheel are detected, counted and converted to litres of water by the electronics and programming.
The flow sensor provides only data on the outflow of absolute litres but, with the help of user supplied data regarding tank capacity, as well as a signal that the tank has been newly filled, the app can report the percentage of tank capacity remaining in addition to reporting the total outflow since last fill.
The Flow Sensor
The flow sensor measures water flow by means of a bucket wheel in the water passage. Every time 3,5mL passes through the pipe an electronic signal is generated and the flow is registered in the control unit. The control unit keeps count of how many 3,5mL units of water are drawn from the tanks and reports this figure to the control unit. The count is cleared on instruction from the mobile phone.
The flow sensor is a very durable unit that requires no maintenance. It has a G1 (previously known as 1" BSP) thread at both ends which makes it compatible with commonly stocked plumbing fittings as well as a Gardena garden hose fitting, stocked by virtually every hardware or garden shop. The direction of flow is clearly marked and the sensor can be oriented in any position. The only maintenance it will ever need is being cleared of foreign matter glogging the bucket wheel.
Clearing the Flow Count
The flow sensor will report every 3,5mL water that passes through it to the control unit. The control unit will add this count to a total kept in memory until the counter overflows or is cleared by instruction from the mobile phone.
To keep an accurate track of water usage from a tank the outflow counter needs to be cleared every time the tank is filled.
The user does this by double tapping the tank icon on the mobile phone screen. The phone will buzz briefly when the clear command is sent to the control unit, and the water usage total for that tank will reset within a few seconds.
Water Used & Capacity Remaining
The normal display is for the app to show the percentage of tank contents remaining. While any water tank icon is pressed and held down the app will display insead the actual water drawn from that tank since the count was last cleared, as shown for Tank 1 at left.
Setting the Tank Capacities
In order to successfuly calculate the percentage of water remaining the app needs to know the total capacity of each tank.
To set the tank capacity tap the icon for the chosen tank, and immediately double tap the Caravan Pilot title.
A slide control will appear which will allow any value up a maximum of 200 Litres to be specified.
Move the slider to the correct position and Save by tapping the Caravan Pilot title again.
Repeat for the other tank.
Flow Sensor (including 3-pin XLR plug, 2M cable) ea R350
Shipping usually together with other items.