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Inert gas analysis module AGM22
AGM 22 represents the most advanced technology for thermal conductivity principle gas sensing transmitters in industrial applications. High precision, good long-term stability, excellent repeatability, and flexible application standards make it very suitable for the needs of different system developers. The enhanced flexibility makes the AGM22 thermal conductivity sensor module an ideal choice for different gas measurement products. Different structures can be selected to meet the needs of single component gas or multi-component gas measurement, with a range from 100% to 1% volume concentration, and dual advantages of high resolution and low signal-to-noise ratio.
| reaction time | 1~45s, corresponding to the sensing element used, flow rate, tube length, and digital time quantity |
| accuracy | Full range ± 2% FS |
| stability | Full scale ± 2% FS (over 12 months) |
| Repetitive accuracy | ± 0.2% (at zero), 1% (at sample gas) |
| Minimum detection value | <Full scale 1% FS |
| Linear error | <Full scale 2% FS |
| temperature characteristic | Full scale ± 1% FS/10 ℃ (zero point)+ 2% FS/10 ℃ (standard gas) |
| Temperature controlled heater | 55 ℃± 5 ℃, optional |
| Pressure characteristics | 0% (zero point)< 2% FS/10 mbar (standard gas) (without pressure compensation) |
| Pressure compensation | <0.2% FS/10 mbar (standard gas) (compensated to 800~1200 mbar), optional |
| Status/Fault Control | Dual color LED display |
| Status/Fault Output | +5V HCMOS on 34 Pin connector |
communication
| Analog output signal | Optional 0-20mA, 4-20mA, 0-1 VDC, 0-5 VDC, 0-10 VDC, 10 Bit resolution, linear |
| Digital output signal | RS232C interface (V.28/V.24); Linear, 12 bit resolution |
| Digital time quantity | 0.5s, 5s, 10s, 20s, DIP optional |
Working conditions
| Voltage | 24 VDC (18-30 VDC), 24 VDC (24-30 VDC) with optional heater |
| Average power consumption | Maximum 3W without heater, maximum 8W with heater, 28W for more than 3 minutes (preheating period) |
| Current output load | Typ. 250 Ω, max 500 Ω |
| temperature range | 0~+50℃ |
| Storage temperature | -20~+60℃ |
| flow | 0~750ml/min |
| Humidity range | 0~95% RH non condensing |
| Ready state | 10s working state, 30 minutes is optimal |
| Alarm setting | Two stage adjustable (potentiometer), output signal+5V HCMOS signal (no relay output) |
| calibration | Use a potentiometer for zero point and sample gas point calibration |
Product Features
Measurement principle: Thermal conductivity sensing principle with silicon micromechanics
measuring range
H2 : 0-5%, 0-10%, 0-20%, 0-30%, 0-50%, 0-80%, 0-100%
He : 0-5%, 0-10%, 0-20%, 0-30%, 0-50%, 0-80%, 0-100%
Xe : 0-5%, 0-10%, 0-20%, 0-30%, 0-50%, 0-80%, 0-100%
The principle of thermal conductivity can be measured in a background gas of nitrogen, air, or argon
Mechanical dimensions PCB 160 x 100mm, Height 40mm
Weight up to 800g
Diameter 3mm ID
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