Eco
Sensors
Ozone
Controller,
Model
OS
‐
4
1
Division
of
KWJ
Engineering
Inc.
User
Manual,
Rev.
1.1
or
(800)
472
‐
6626
USER MANUAL
OZONE SWITCH
Model OS-4
OS-4 Features
The OS-4 is a small form-factor ozone controller and monitor. It pairs with a sensor module
featuring a calibrated user-replaceable sensor that enables users to efficiently operate and
maintain an accurate ozone control system. Its digital display and LED indicators are easy to read
and interpret. Additionally, an RS-232 serial output can connect to a computer, facilitating data
logging and real-time data analysis.
Front panel digital LCD displays ozone level.
LED indicators illuminate when ozone exceeds the 0.1 ppm
OSHA limit and when the connected ozone generator is
activated.
Interfaces with calibrated user-replaceable sensor modules.
Two user-adjustable set points define the low and high limits
for the ozone generator control relay.
Analog outputs (4-20 mA and 0-2 VDC) are compatible with
data loggers, PLCs, and other process controllers.
Digital serial output
(RS-232) allows for convenient
connection to a computer or data logger. Data output:
ozone (ppb), temperature (°C), and relative humidity (%).
