The Single Advanced Gasmitter uses NDIR technology for the measurement of a wide array of gases for industrial applications.

NDIR S-AGM Plus Brochure (English)
NDIR S-AGM Plus Brochure (German)
Specifications (English & German)
Request a Quote

Single Advanced Gasmitter

Single Advanced Gasmitter

The Single - Advanced Gasmitter Plus (S-AGM Plus) Series is a completely revised Advanced Gasmitter® with optimized accuracy and reliability for gas measurement. A linearized output signal provides a superior signal to noise ratio, while standard temperature and pressure compensation minimize drift. Internal signal conditioning ensures accurate and reliable outputs. The S-AGM Plus series offers solutions for measuring and analyzing both industrial and environmental gases.

  • S-AGM Products
  • Features
  • Specifications
  • Options

S-AGM Plus 1000 Series
Reliable Gas Measurement

  • S-AGM Plus 1010: CO2 / CH4
  • S-AGM Plus 1030: CO2 / CH4
  • S-AGM Plus 1031: CO2 / N2O
  • S-AGM Plus 1032: CO2 / N2O / C3H8

S-AGM Plus 2000 Series
High resolution gas measurement for low gas concentrations. Contains an additional filter to minimize cross talking.

  • S-AGM Plus 2001: CO2 / CH4 / C6H14 / N2O

S-AGM Plus 3000 Series
Designed specifically for CO measurement. Contains an additional filter to minimize cross talking.

  • S-AGM Plus 3006: CO
  • NDIR-Dual wavelength sensor for gas measurement
  • Low-grade drift characteristics
  • Fast response time: 5...45s
  • Improved signal to noise ratio
  • USB and RS-485 interface
  • Linearized 4 - 20 mA / 0 - 6 V analog output
  • Display for measurement range deviation: 2 - 22 mA output
  • Temperature and pressure compensation in serial
  • Web based communication software


Measuring principle: Non Dispersive Infra-Red (NDIR) dual wavelength
Measurement Response1
Linearity error: ≤ ±1% FS*
Lower detection limit: < 0.5% FS*
Repeatability at zero: ≤ ±0.2% FS*
Repeatability at span: ≤ ±1% FS*
Long term stability: ±2% FS*
Influencing Variables1
Temperature dependence at zero: ≤ ±0.5% FS* per 10K (non heated version)
Temperature dependence at span: ≤ ±1% FS* per 10K (non heated version)
Heating option: 55°C ± 5°C
Pressure dependence at zero: 0%
Pressure dependence at span: ≤0.2% FS* per 10mbar (in the range of 800 - 1200 mbar); Pressure sensor and compensation included
Time Response
Warm up: 10s operation (≤ 30 min. to approach all specified properties)
Response time (T90): 5 - 45s (depending on used sensor element, flow, tube length, digital attenuation)
Gas Inlet Conditions
Ambient temperature: 0 - 50°C in process
-20 - 60°C in storage
Gas pressure: 800 - 1200 mbar
Ambient humidity: < 95% RH (non condensing)
Flow range (gas): 0.1 - 0.750 l/min (constant)
Zero point calibration: with inert gas (e.g. nitrogen N2, or ambient air free from measurement gases)
Span point calibration: with sample gas mixtures
Adjustment: zero point and span point adjustable with supplied software
Recalibration: At first initiation and depending on application and ambient conditions. Recurring cycles of recalibration are recommended.
Electric Properties
Operating voltage: 24 VDC
Power consumption: Max. 3W; 8W with heating option; 28W during warm up
Status / Failure visualization: Status and failure LED on the PCB
Analog output (linearized): 0 - 20 mA, 4 - 20 mA (range of 2 - 22mA displayable);optional voltage output 0 - 6V
Max. 300Ω load at current output; ≤ 300Ω burden at voltage output
Digital output (linearized): RS485 Interface, USB Interface
Dimensions / Materials
PCB dimensions: 160mm x 100mm (European PCB format); Height: 45mm (includes connectors and tubes)
Housing dimensions: 168mm x 103mm; Height: 56mm (Housing made of anodized aluminum)
Weight: ca. 800g
Tube connector: 3mm (outside diameter); Hose inside diameter < 3mm
Materials in contact with medium: Sample cell: Aluminum or gold-plated stainless steel
Window: CaF2, Al2O3 or Ge
Gas hoses: Viton®(FPM/FKM)
Hose connectors: nickel-plated brass
Filter: Polypropylene (PP)
Details regarding measuring ranges and gases can be found in the "NDIR S-AGM Plus Brochure".
Heating option
Certificate of compliance
*FS = Full scale
1 = Refers to 1013 mbar sample gas pressure, 25°C ambient temperature and 0.75 l/min constant gas flow
  • Heating option
  • Remote diagnostics over TCP/IP
  • Certificate of compliance