Automatic Span Gas Unit Transferstandard

The portable calibration unit ASGU-370TS is designed for the dynamic and continual manufacture of zero and span gas to perform all ongoing quality control procedures according EN Norms. To prepare various span gas concentrations the unit uses technologies like dilution, permeation, Gas Phase Titration.


Division: Ambient
Manufacturing Company: HORIBA (Austria) GmbH
Base product: ASGU-370 series
  • Portable one component multipoint calibration system acc. EN 14211 or EN 14212 or EN 14626
  • High accuracy of span gas in cause of usage of factory calibrated digital thermal mass flow controllers in high quality
  • Comfortable operation via big illuminated Touch-Screen-Display
  • Operation via RS232 and Ethernet interface (Bayern Hessen protocol)
  • Delivery scope includes remote software for easy external handling (Ethernet)
  • High flexibility by free definable span points (up to 20)
  • High flexibility by free definable cycles (e.g. Lack of fit)
  • High flexibility by free definable sequences (stringing cycles together)
  • Programmable timer allows time shifted start of calibration process
  • Internal data logger (option) stores raw values from calibration procedure (set value and actual value, status) for reporting with evaluation software (included in scope of delivery)




Dilution (incl. built in cylinder), Permeation,  Gas Phase Titration, (Mixed gas dilution)


Quality control in Laboratory
Quality control in field

Stage of extension

Only one channel (module) per unit

Flow regulation

Digital Mass flow Controllers

Span gas repeatability

+/- 1%

Span gas linearity

+/- 2% (minimum flow >20% F.S.)

Permeation system
(NO2, SO2, NH3, H2S, BTX)

PID temperature controller with Pt 100 sensor
Temperature: 50°C
Accuracy ±0,1°C
Indication of actual temperature on display

Zero Air Supply

Internal Zero gas preparation


Manual (Touch Screen Display)
External via RS232 (Gesytec Protocol)
External via Ethernet (Remote Software)

Battery packFor uninterruptible power supply for approx. 30min purge mode without mains voltage


230VAC, 50Hz
Power consumption depends on stage of channel


510mm(W) x 310mm(D) x 430mm(H)


Depends on stage of extension

Air Quality Monitoring
Air Quality Monitoring
During the period of rapid economic growth, Japan was burdened with various types of pollution such as water contamination and air pollution. The first step to regain the glow of the sky and the purity of water was analysis. HORIBA's measuring instruments play an active part in various fields to determine, for example, whether established regulations are complied with or whether the air and water are purified properly. The beautiful environment is the world's asset. Going forward, HORIBA will continue contributing to preserving the global environment through measurement.

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