The Model T750 is a portable, microprocessor based calibrator for precision gas analyzers. Using highly accurate mass flow controllers combined with compressed sources of standard gases, calibration standards are provided for multipoint span and zero calibrations.  The T750 is housed in a high-density, molded travel case which includes an integral handle and wheels for durability and ease of use in the field.
The Model T750 can be equipped with an optional UV ozone generator for accurate, dependable ozone calibrations, and production of NO2 when blended with NO gas in the included, internal gas phase titration (GPT) chamber.  An optional photometer allows even more precise control of the ozone generator giving accurate and dependable ozone calibrations and enhanced GPT.  A number of calibration sequences may be programmed into the non-volatile memory of the Model T750, covering time periods up to a year.
All T Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, and flexible I/0.  All instrument set up, control and diagnostic information is available through the front panel, or via RS232, Ethernet, or the optional USB com port, either locally or by remote connection.
The Model T750 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.

•Generates precise calibration gases for SO2, H2S, NO, NO2, CO, O3 and others
•Large, vivid, and durable color graphics display with touch screen interface
•Ethernet, RS-232, and (optional) USB com ports
•Front panel USB ports for peripheral devices and firmware upgrades
•Nested sequences (up to 5 levels)
•Software linearization of mass flow controllers (MFC)
•3rd MFC for wide dynamic range (optional)
•Gas phase titration chamber (GPT) (optional)
•Ozone generator and photometer allow use as a primary or transfer standard (optional)
•Inlets for external ozone reference sources
•Two-year warranty

•Dilution System
-Flow Measurement Accuracy: ± 1% of full scale
-Repeatability of Flow Control: ± 0.2% of full scale​
-Linearity of Flow Measurements: ± 0.5% of full scale
-Flow Range of Dilution Air: 0 - 10 SLPM
-Optional Ranges: 0 - 5 SLPM, 0 - 20 SLPM
-Flow Range of Cylinder Gases*: 0 - 100 cc/min
-Optional Ranges: 0 - 50 cc/min, 0 - 200 cc/min (others available)
-Zero Air Requirements: 10 SLPM @ 30 psi
-Optional Ranges: 20 SLPM @ 30 psi
-Input Pressure: 20 - 40 psig
-Calibration Gas Input Port: 1
-Diluent Gas Input Port: 1

•Ozone Generator Module Option
-Maximum Output: 5.5 ppm LPM
-Minimum Output: 100 ppb LPM
-Response Time: 180 seconds to 98%

•UV Photometer Option
-Range: 0 - 100 ppb to 0 - 10 ppm (selectable)
-Precision: 1.0 ppb
-Linearity: 1.0% of reading
-Rise/Fall Time: < 20 seconds (photometer response)
-Response Time: 180 seconds to 95% (system response)
-Zero Drift: < 1.0 ppb/24 hours

•Electrical Specifications
-Power Requirements: 85V - 264V, 47Hz - 63Hz
-Analog Output Ranges: 10V, 5V, 1V, 0.1V (selectable)

•Communication 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): 9" x 17" x 21" (229 x 432 x 533 mm)
-We​ight: 37 lbs (16.78 kg), 46.6 lbs (21.14 kg) with photometer, GPT, and ​O3 generator ​​