A-22, Rugged and Versatile Ozone Sensor, 0.03 - 20 ppm
A general purpose sensor and monitor. Designed for rugged indoor field use, factories, pilot plants, process facilities, and sensor and monitoring uses of all kinds. The A-22 uses the same precalibrated sensor modules as our OS-4 permanent monitor and controller. The internal signal processing is done by digital microprocessor technology. The A-22 changes automatically to the matching measuring range: 0.030 - 1.999 ppm or 2.00 - 20.00 ppm. It has USB, 4-20 mA
and 0-2 VDC outputs and its LCD display can be backlit.
The plug-in sensors are precalibrated. Therefore it is cheaper to buy a spare sensor than to send the old one back to the factory for calibration. The user can choose between instant readout, high low and average of data, collected over a period of time. The rubber "boot" protects the device against mechanical damage. It has a tilt stand which can also be used as a wall hanging hook.
The instrument is powered by the built-in rechargeable battery or via the external charger/mains power supply.
Technical data:
Measurand: Ozone concentration in near earth air
Sensor: Heated Metal Oxide Semiconductor (HMOS)
Measuring ranges: 0.03 - 1.999 ppm and 2.00 - 20.00 ppm, auto range
Resolution: 0.001 and 0.01ppm
Sensitivity: First responds at 0.03 ppm
Accuracy: 10%, T & RH compensated
Response time: Within one minute of when gas reaches the sensor.
Temperature and humidity range: 0 - 40 °C and 0 - 80 % RH
Display: backlit LCD
Outputs: USB, 4-20mA, 0-2VDC for connection to loggers, PC and PLC
Supply voltage: integrated rechargeable battery for ca. 12h continuous operation with full battery,
Battery charging time: 8h
Battery charging and continuous operation via ext. power supply 8 - 24 VDC/ 300 - 500 mA (supplied).
Housing sizes: 108 x 222 x 64 mm³ (W x L x D)
Weight: ca. 745 grams
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