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Advanced
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Instrumentation, Inc.
UV Photometric Ozone Calibrator
Model 401
Features
- Primary or transfer standard for calibration of Ozone Analyzers
- Output concentrations from 50 ppb to 1 ppm
- Ability to set concentration directly in ppb
- Flow adjustable from 2 LPM to 5 LPM
- Automatic program modes: Zero/Span; Zero/2 Span Points; Zero/5
Span Points
- UV Lamp Feedback modes: current control; reference detector
control; photometer control
- Multitasking microprocessor controlled
- Internal pumps
- Powerful bi-directional RS-232 communications
- Temperature & pressure compensation
- Built in self checks and diagnostics
- Non-volatile program memory
- Digital status
- Internal pumps for photometer and internal zero air
- Bi-directional RS-232
- Convenient carrying handle
Accessories
- RS-232 cable
- Expendables kit
- Recommended spare parts kit
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The Model 401 is a microprocessor controlled UV photometer for use as
a primary or transfer standard for calibration of Ozone analyzers. The
Model 401 can deliver concentrations from 50 ppb to 1 ppm at flows from
2 LPM to 5 LPM. The calibrator has two major components; the ozone generating
device, and the photometer. The ozone generator is a flow controlled zero
air supply passing by a UV lamp. Flow rate and lamp intensity are adjusted
to deliver a specified ozone concentration by volume. The temperature-
and pressure-compensated photometer (identical to the one used in the
Model 400 Ozone analyzer) measures the output of the generator. Photometer
output provides feedback control of the UV lamp intensity, assuring stable
ozone output. A variety of automatic calibration routines can be programmed.
For example, one program could generate a zero reading followed by a series
of span values, while another could cycle between zero and span. Model
401 has many other versatile features, including a choice of operation
from the manual keyboard, via external contact closure, remotely with
RS-232, or automatically once per day on a timed basis. The diagnostics
capability is the most advanced in the industry. Critical parameters are
continually monitored and alarmed when out of normal. The Model 401 is
versatile, simple to operate and easy to keep operational.
Voltage/frequency Options
- 100V/50 Hz
- 100V/60 Hz
- 115V/60 Hz
- 220V/50 Hz
- 220V/60 Hz
- 230V/50 Hz
- 240V/50 Hz
Additional Options
- Rack mount (19") with chassis slides
- Rack mount only
- Multi-drop RS-232 connection
- Dryer cartridge for internal zero air pump
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