Rain Master Weather Center II, Руководство пользователя

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Weather Center II User Manual Rain Master Irrigation Systems
Page 54
problem must be isolated to either the Rain Switch
or the Controller.
8.5 Verification of Rain Fall Sensor Electronics
8.5.1 At the Evolution DX2 Controller
This procedure provides the recommended steps to check and verify the
operation of the Evolution DX2 Controller Rain fall sensor input. This
process simulates the incoming pulses (+ 8 volts) from a Rain Gauge,
displaying the results on the controller’s Rain/Wind display screen.
The following steps will assist in the isolation of the Rainfall sensor
reading problems to the Rainfall sensor, the associated wiring, the
Controller, or the associated Sensor terminal inputs.
Step 1 Disconnect the two wires from the Sensor Terminal board
at terminals Input 3 ( + ) and Input 3 ( - ). Connect a short
wire (14 - 12 AWG) in each of the Input 3 terminals.
Step 2 Observe the controller’s Rain display screen and note the
present value displayed.
Step 3 At the Sensor Terminal board, touch the two wires
together momentarily 2 or 3 times. (A Rain reading of
0.01 inches should be recorded each time the wires are
shorted together.)
Step 4 Re-check the Rain values on the controller Rain display
screen. Verify that the reading has increased 0.01 inches
(1/100 inch) each time the wires were shorted.
Note: If readings change properly, the Sensor Terminal Input
3 is OK and the Controller is operating properly.
Rainfall sensor reading problems must therefore be
associated with the Rainfall sensor or its associated
wiring. Check the Rainfall sensor installation and all
connections.
If readings do not change properly, the problem lies
within the Controller. Check the controller cables to
make sure that everything is plugged in correctly.