7ML19981CJ02
MiniRanger Plus – INSTRUCTION MANUAL
Page 29
Relays
General
Two onboard relays are provided in the MiniRanger Plus. Each relay can be assigned one
of two functions: Alarm or Pump. Relay two can also be used to control a totalizer when
the unit is in OCM mode.
Functions
Alarm
high alarm :
occurs when the level
rises to the on setpoint.
The alarm is cancelled
when the level reaches
the off setpoint.
low alarm :
occurs when the level
falls to the on setpoint.
The alarm is cancelled
when the level reaches
the off setpoint.
Pump
pump down :
occurs when the
level rises to the
on setpoint. The
pump is stopped
when the level
reaches the off
setpoint.
pump up :
occurs when the
level falls to the on
setpoint. The pump
is stopped when
the level reaches
the off setpoint.
Note:
Alarm relays are de-energized in alarm condition.
Note:
Pump relays are energized in pump condition.
on, P112
off, P113
off, P113
on, P112
high
alarm
low
alarm
on, P112
on, P112
off, P113
off, P113
pump
down
pump
up
