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 manu-
facturer 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)
B
NOTE:
Install the flow sensor in the field accord-
ing to the manufacturer’s instructions.
a
Run the flow sensor wires to the controller.
C
WARNING
Do not route valve wires through the same open-
ing 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)
B
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.
B
NOTE:
See Troubleshooting section of the Appen-
dix for Flow Alarms information.
a
B
NOTE:
Connection to
pump and external
power not shown.
Refer to pump instal-
lation instructions.
PUMP START
RELAY
b
COM
COM
PSR
PSR
11
22
