OS-4 Ozone Switch™
Acts like a thermostat to control ozone generators and alarms based
on adjustable ozone concentration set-points. Ozone ppm readout via
digital meter. Simple and inexpensive.
Features:
Easy to install. Minimal adjustments.
Sensor is in a replaceable precalibrated module. Separated by a
cable, the instrument is not in the high ozone area.
Sensor reading is temperature and relative humidity
compensated.
Replacement sensor is miniature, low cost, precalibrated and also
fits our A-22.
Operates from 12-24 VDC or from AC adapters available
worldwide.
Alarms, data loggers, and other accessories available.
Programmable turn-on and turn-off set-points.
Indication when .1 ppm safety standard exceeded.
Typical Applications:
Monitor ozone levels in treatment storage areas for fruits,
vegetables, and other agricultural products. Monitor ozonated HVAC
systems. General monitoring at .03-20 ppm.
Control the output of ozone generators using the set-point
controlled relay in the OS-4.
Use as either ozone leak alarm or ozone failure alarm for all sizes
of ozone generators.
OS-4 host unit normally located outside of the ozone treatment
area.
Specifications:
Range and Accuracy: .03-20 ppm of ozone.
Accuracy: 10-15% (Depends on application).
Temperature and humidity: 5-40°c 20-95% RH
Measurement Principle: HMOS (heated metal oxide semiconductor)
sensor.
Size: 127 × 64 × 42 mm (5 × 2.5 × 1.625 in).
Weight: 200 gr (7 oz)
Power Requirements: 12-24 VDC, 300 mA. AC adapters available.
Output control: SPDT non-latching relay. Contacts rated at 5 amps,
250 VAC.
.1 ppm danger alarm: Panel LED and SPDT relay 5 amp contacts.
Connections: Terminal blocks for relay output and DC input. 2.5 mm
DC power jack for AC adapter.
Indicators: Green LED: instrument on. Yellow LED: >.1 ppm. Red
LED: generator on.
Outputs: 0-2 V, 4-20mA, RS-232 digital.
Case: Flame-resistant ABS with mounting ears.
Not recommended for use in the presence of strong acid gases or VOC
fumes.