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API 400A   

 API 450

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*0-100 ppb to 0-10 ppm, user selectable
*Dual and auto-ranging with independant calibration
*Single pass, single path ultraviolet absorption
*Multi-tasking software allows viewing test variables while operating
*Continuous self checking with warning alarms
*Bi-directional RS-232 for remote operation
*Digital status outputs provide instrument condition
*Extensive built-in diagnostics, including self leak check
*Adaptive signal filtering optomizes response time
*Internal Zero/Span check, including dual span points (optional)

*Tempature and Pressure compensation
*Internal data logging, 1 min to 24 hour averages

*0-1 ppm to 0-1000 ppm, user selectable
*Ultraviolet absorption method
*Microprocessor controlled for versatility
*Multi-tasking software allows viewing test variables while operating
*Continuous self checking with warning alarms
*Bi-directional RS-232 for remote operation
*1, 3 and 6 channel versions

 API 450H

Process Ozone Monitor

API 454

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*UV absorption method
*Ranges 100, 200, 400 g/m3(w/w, g/Nm3 available)
*Microprocessor controlled
*Built-in diagnostics
*Self-check warning alarms
*Fast response time
*Minimal zero drift
*Programmable concentration alarms
*Pressure, temperature, molecular weight compensation (option)
*No switching valves for measurement
*Internal Flow Control

*Ranges from 0-5% to 0-20% w/w
*Available in standard DIN panel mount or NEMA 4X
*High visibility, 4-dight display
*Temperature and Pressure Compensation
*Units of weight % or grams/Normal m3
*Narrow Band detector eliminates need for UV filters
*Analog and RS232/485 outputs
*Status LEDs to monitor performance

Process Ozone Sensor

API 452

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*Range: 0-15 wt%, 0-400 g/m3
*100, 200, 400 g/Nm 3
*Pressure Comp.: up to 3 Bar absolute. (option)
*Proof pressure: 115 psia
*Repeatability: 1% of Full Scale.
*Response Time: 2 sec. to 95%
*Zero Drift: 1% Full Scale/month (non ?cumulative)
*Temperature range: 5 0 to 45 0 C