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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)
connection to a computer or data logger. Data output:
ozone (ppb), temperature (°C), and relative humidity (%).
Eco Sensors
Division of KWJ Engineering Inc.
sales@ecosensors.com or (800) 472‐6626
OZONE SWITCH
Model OS-4
OS-4 Features
allows
Ozone Controller, Model OS‐4
for
convenient
User Manual, Rev. 1.1
USER MANUAL
1
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Table of Contents
Related Manuals for ECO Sensors OS-4
Summary of Contents for ECO Sensors OS-4
- Page 1 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.
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Page 2: External Connections
Initial Operation & Warm-Up All standard connections between the OS-4 and the SM-module are made at the factory. Once power is connected to the OS-4 using one of the methods described above, the green power LED will illuminate and then blink at a 1-second interval as data is received from the SM- module. -
Page 3: Set Point Settings
Set Point Settings Two dials are mounted on the circuit board, behind the rear panel. For access, disconnect the OS-4 from power and remove the four screws and rear panel. The dials are located in the upper, right corner. The dials are marked from 0-100, which represents percent of the 20 ppm full-scale range. -
Page 4: Notes And Precautions
If a defect develops during the warranty period, Eco Sensors, in its sole discretion, will repair the instrument or replace it with a new or reconditioned model of equivalent quality. - Page 5 Appendix A SM-Module Wiring Illustration OS-4 Wiring Panel Analog Outputs to Process Controller 4-20 mA Out 0-2 VDC Out Serial RS-232 3-Wire Cable Power Out User Replaceable Sensor Connects Here Data In SM-Module Power In 12-24 VDC N/O COM N/C Alarm Relay: Above 0.1 ppm OSHA Safety Limit...
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