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Expansion Modules
LTW-5 controllers incorporate an “Infinite Expandability Port” (IEP) which allows for expansion
to the UV sensor and all other modules. Each module (including the sensor) comes with both a
male and female connection. Connect any device to the controller and all subsequent devices
are then connected into the female end of last device added in a “daisy chain” configuration.
The following optional expansion modules are available for use
on LTW-5 UV
controllers. Contact your authorized distributor for
purchasing information.
REMOTE ALARM CONNECTION MODULE: Allows for a connection
to a remote device such as a buzzer, light, alarm system, PLC,
etc., via a pair of contacts. In normal operation the OK and
COM contacts will be connected, and in a fault condition (Low
UV, Lamp fail, Power Fail), the Fault and COM contacts will be
connected. Maximum contact rating is 30V / 1A (use 16-22 AWG).
Order PN LTW-RAM.
SOLENOID CONNECTION MODULE: Connects a NORMALLY
CLOSED line voltage solenoid valve to the controller. Maximum
contact rating is 240VAC (50-60Hz) / 30VDC / 2A. On a non-
monitored system, the solenoid will only close on a lamp failure
error. On a monitored system, the solenoid is closed when the UV
level drops below 50%. Also note that in cases where emergency
use of untreated water is required, the controller can be placed
into a manual override mode allowing for the flow of water in an
alarm condition. Order PN LTW-SOL1.
4-20 mA MODULE: Outputs a 4-20mA signal of the UV output
to a remote device such as a data logger or computer. Order PN
LTW-420.
The WiFi module and accompanying IoT application allows you
to connect your UV system to a smart phone, tablet, computer
or other connected platform. View system status, receive SMS
or email messages of alarm conditions and monitor the health
of your UV from anywhere via this connected platform. Connect
the device via the APP found on Google Play or the APP Store
and connect your UV device to your router, then download the
software for your connected device and have peace of mind that
your UV system is providing safe, reliable disinfection. Order PN
LTW-MODAPP.
The Ultrasonic Flow Meter enables your UV system to dim power
in times of low to no flow, saving you money on energy, reducing
water temperature, and decreasing the risk of fouling. Order PN
LTW-FM10.
