ESP-ME3 Controller
5
EN
Connect Pump Start Relay (optional)
A
Connect a wire from the PSR (pump start relay)
to the MV (master valve) terminal on the Base
Module. Then connect another wire from the
pump start relay to the field common wire, as
shown.
B
To avoid the possibility of damage to the pump,
connect a short jumper wire from any unused
terminal(s) to the nearest terminal in use, as
shown.
NOTICE
The ESP-ME3 controller DOES NOT provide power for a pump. The relay
must be wired according to manufacturer instructions.
Only the following Rain Bird pump start relay models
are compatible with the ESP-ME3:
Description Note Model No.
Universal Pump Relay 110 volt only PSR110IC
Universal Pump Relay 220 volt only PSR220IC
Connect Flow Sensor (optional)
NOTE: Install the flow sensor in the field accord-
ing to the manufacturer’s instructions.
A
Run the flow sensor wires to the controller.
WARNING
Do not route valve wires through the same opening as power wires.
B
Connect both flow sensor wires to the Flow
terminals, as shown. Be sure to connect the
positive (sometimes red) sensor wire to the red
(+) terminal and the negative (sometimes black)
sensor wire to the grey (-) terminal.
B
Flow Sensor Settings
Set the controller to obey or ignore a flow sensor.
When set to Sensor ON, automatic irrigation will
be suspended per station if detected flow exceeds
learned flow by more than 30%. When set to Sensor
OFF, all stations will ignore the flow sensor.
Turn the dial to Flow Sensor.
• Press
or to select SENS ON (sensor on) or SENS
OFF (sensor off).
Sensor ON Sensor OFF Flow detected
(flashing)
NOTE: When switching from Sensor OFF to Sen-
sor ON, the controller will begin to LEARN FLOW.
It will run each station for short period to set the
expected station flow.
NOTE: See Troubleshooting section of the Appen-
dix for Flow Alarms information.
A
NOTE: Connection to
pump and external
power not shown.
Refer to pump instal-
lation instructions.
PUMP START
RELAY
B
COM
PSR
1
2
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