TAPI - Model T703U -Trace-Level Photometric Ozone Calibrator

In addition to a high range with similar performance to the Model T703, the Model T703U has the capability to generate ozone in a low range, or “fractional” mode, for producing ozone levels down to 3 ppb, with exceptional accuracy.  Flow rate and lamp intensity are adjusted to deliver a specified ozone concentration by volume.  The temperature and pressure compensated photometer, identical to that of the Model T400 ozone analyzer, provides feedback control of the UV lamp intensity, assuring stable ozone output.  A nearly unlimited number of calibration sequences may be programmed into the non-volatile memory of the T703U, covering time periods up to a year.

All T Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, flexible I/0, and built-in data acquisition capability.  All instrument set up, control and access to stored data and diagnostic information is available through the front panel, or via RS232, Ethernet, or USB com ports, either locally or by remote connection.

The Model T703U comes with NumaView™ Software.  NumaView™ Remote PC Software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView™ Software. 

• Transfer standard for calibration of ozone analyzers
• Ultra-low ozone capability – down to 3 ppb
• Large, vivid, and durable color graphics display with touch screen interface
• Ethernet, RS-232, and (optional) USB com ports
• Front panel USB connections for peripheral devices and firmware upgrades
• 12 independent timers for sequences
• Nested sequences (up to 5 levels)
• UV Lamp Feedback modes: current control; reference detector control; photometer control
• Internal zero air pump (optional)
• Flow adjustable from 1 LPM to 5 LPM (with internal zero air source)
• Flow adjustable from 1 LPM to 15 LPM (with external zero air source)
• High Flow/High Output capability (optional)
• Inlets for external ozone reference sources
• Two-year warranty

• System
• Linearity ± 1% of full scale
• Precision 1.0 ppb
• Response Time < 240 seconds to 95%:
• Stability (7 days)
• < 1% with photometer feedback
• < 3% without photometer feedback (CNST or REF)
• Ozone Generator Module
• Flow Rate (with internal zero air source) 1 to 5 LPM adjustable
• Flow Rate (with external zero air source) 1 to 15 LPM adjustable
• Maximum Output 5 ppm LPM
• Minimum Output 15 ppb LPM
• Maximum Concentration 5 ppm at 1 LPM
• Minimum Concentration 3 ppb at 5 LPM
• Response Time < 240 seconds to 98%
• UV Photometer
• Range 0 - 100 ppb to 0 - 10 ppm (selectable)
• Precision 1.0 ppb
• Linearity ± 1% of full scale
• Rise/Fall Time < 20 seconds to 95% (photometer response)
• Response Time < 180 seconds to 95% (system response)
• Zero Drift < 1.0 ppb/7 days
• Span Drift < 1%/24 hours
• Lag Time < 10 seconds
• Flow Rate 800 cc/min ±10%
• Electrical Specifications
• Power Requirements 100V-120V, 220V-240V, 50/60 Hz
• Analog Output Ranges (Test Channel) 10V, 5V, 1V, 0.1V (selectable)
• Communications Specifications
• Included I/O :
• 1 x Ethernet: 10/100Base-T
• 2 x RS232 (300-115,200 baud)
• 2 x USB device ports
• 12 x digital control outputs
• 12 x digital control inputs
• 8 x digital status outputs
• Optional I/O:
• 1 x USB com port
• 1 x RS485
• Multidrop RS232
• Physical Specifications
• Operating Temperature Range : 5 - 40ºC
• Dimensions (HxWxD) : 7” x 17” x 24” (178 x 432 x 609 mm)
• Weight : 35.5 lbs (16.1 kg) with internal zero air pump