Performance Parameters
| Characteristics | AIR-040S1 | ||||
| Physical Characteristics | |||||
| Dimension（W×H×D） | 34×115×100mm | ||||
| Power Characteristics | |||||
| Rated input voltage | 24V DC | ||||
| Input voltage range | 20.4V~28.8V DC | ||||
| Input current | 60mA | ||||
| Reverse polarity protection | Yes | ||||
| Bus power voltage | +5V DC | ||||
| Bus power current | 50mA | ||||
| LED lights Diagnostics | |||||
| 24V power LED | On：24VDC normal power；Off：No 24VDC power supply | ||||
| SF LED | On：system-down；off：No error,flash:iInput signal error | ||||
| Input Characteristics | |||||
| Input type | Module reference ground thermal resistance | ||||
| Number of inputs | 4 | ||||
| Wiring | 2-wire, 3-wire and 4-wire;default: 3-wire | ||||
| Input Range | RTD type (choose one):
Pt-100Ω，200Ω，500Ω，1000Ω（α=3850ppm，3920ppm，3850.55ppm，3916ppm，3902ppm） Pt-10000Ω（α=3850ppm） Cu-9.035Ω（α=4720ppm） Ni-100Ω，120Ω，1000Ω（α=6720ppm，6178ppm） R-150Ω，300Ω，600ΩFS default：Pt-100Ω（α=3850ppm）
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| Isolation
Field to Logic Site to 24VDC 24VDC to logic |
500VAC 500VAC 500VAC |
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| Common Mode Rejection | ＞100dB@120VAC | ||||
| Input resolution
Temperature Voltage Resistance
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0.1℃/0.1℉ – 15 + sign bit |
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| Measuring principle | Sigma-Delta | ||||
| Module update frequency (all channels) | 4 channel support 8Hz, 4Hz, 2Hz, 1Hz configured, default : 2Hz all channels | ||||
| 8 channel support 4Hz、2Hz、1Hz、0.5Hz configured, default : 2Hz all channels | |||||
| length of wire to sensor | Max,100m | ||||
| Wire loop resistance | 20Ω, Cu-type 2.7Ω | ||||
| Noise suppression | 85dB@50Hz/60Hz/400Hz | ||||
| Data word format | Resistance: -27 648 ~ + 27 648 | ||||
| Input impedance | ＞10MΩ | ||||
| Maximum input voltage | Inputs can support a maximum voltage to 30V DC of misconnection | ||||
| Resolution | 15bit + sign bit | ||||
| Input filter attenuation | -3dB@3.6KHz | ||||
| Basic error | 0.1%Fs（Resistance） | ||||
| Repeatability | 0.05%Fs | ||||
| Cold junction compensation | – | ||||
| Cold junction error | – | ||||
| Temperature Unit | Celsius / Fahrenheit can be configured, default Celsius | ||||
| Break detection | yes | ||||
| Support both positive and negative directions calibration, default positive calibration | |||||
| Diagnostic
Break No module supply |
32767（positive calibration），-32768（ negative calibration） 32766
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| With integrated PID control function | – | ||||
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