AI-6256C 1 is an insert type CO2 concentration transmitter, which uses non-dispersive infrared absorption method (NDIR) for measurement. It has linear output signal and long-term stability.
This manual describes the Al-6256C CO₂ sensor, its features, safety precautions, and proper installation methods. It includes detailed specifications, wiring diagrams, calibration procedures, and troubleshooting guidance.
Key sections cover the sensor's measurement range, power requirements, environmental limits, IP65 protection, and recommended maintenance intervals. The document also provides step‑by‑step instructions for connecting the sensor to a 24 VAC source and performing yearly gas‑calibration. This manual is written in Japanese.
| CO₂ measurement range | 0‑2000 ppm |
|---|---|
| Accuracy (±) | ±50 ppm (±5 % of reading) |
| Output signal | 1‑5 VDC |
| Operating temperature | 0‑50 °C |
| Operating humidity | 0‑95 %RH |
| Ingress protection | IP65 (main part) |
| Power consumption | 3 VA (max) |
The sensor measures CO₂ concentrations from 0 to 2000 ppm.
Calibration with the CO₂ gas package should be performed once per year.
The sensor provides a 1‑5 VDC analog output.