Specifications
The AL250-V2 incorporates the following specifications:
Power Requirements:
The controller can operate with following primary
voltages (acceptable range). Depending upon the voltage being used,
the power must be wired to the proper position on the power terminal
strip near the transformer.
115 VAC (108-130 VAC)
208 VAC (187-220 VAC)
230 VAC (216-254 VAC)
Environment
: The controller can operate at a temperature from 0° to 55° C (32°
to 131° F). Relative humidity must not exceed 95 percent.
Do not
mount controller in direct sunlight.
Conductivity Monitor:
The conductivity monitor measures the feed and product
water quality and displays this information in uS/cm. The value is
temperature compensated to 25° C (77° F). The controller calculates
and displays the salt rejection of the system (as a percentage).
Outputs
The AL250-V2 is equipped with the following outputs. The 24 VAC outputs are in the
form of solid state triac outputs.
Inlet Solenoid:
A 24 VAC output is provided to power the inlet solenoid valve.
This output always energizes 15 seconds before the pump turns on,
and de-energizes 15 seconds after the pump turns off. All water
systems equipped with this controller are also equipped with a
compatible inlet solenoid valve. If the valve must be replaced it must
function on 24 VAC and have a current load less than one ampere.
AutoFlush Valve
: A 24 VAC output is provided to power the
reject (Autoflush)
solenoid valve. This output will energize during the flush cycle thus opening
the valve and allowing flow to bypass the reject control valve. If the valve
must be replaced it must function on 24 VAC and have a current load less
than one ampere.
Chemical Injection Pump
: A 24 VAC output is provided to control a chemical
injection system. This output energizes before the main pump starts and de-
energizes before the main pump shuts down. This output is intended to
power a relay or some other low current device.
Motor Starter:
A 24 VAC output is included to provide controlled pump
operation. This output powers the coil of the magnetic starter relay.
This output is energized depending on other operating parameters.
This output also has a maximum current rating of one ampere.
Permeate Diversion Valve
: This is also a 24 VAC output. When the percent rejection
of the system is below the setpoint, this output will be energized. This output
is also energized during a flush. This output will power a relay, which will
control an electric actuator. The maximum current available is one ampere.
Alarm
: This consists of a 12 VDC output powering 108 db alarm horn mounted inside
the AL250-V2 enclosure. A dry contact relay (2 amps resistive) is also
provided for signaling external devices. The horn and relay are energized
when the following conditions are present:
1-2
!
Voltages outside of these values will damage
the AL250-V2 power circuitry. Check primary
line voltage before connecting power to the
AL250-V2.
!
