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| Brand | ADOS |
|---|---|
| Origin | Germany |
| Model | MWS 903 |
| Sensor Inputs | 8 (2-wire or 3-wire, e.g., LCTR 903) |
| Power Supply | 24 V DC / 200 mA |
| Operating Temperature | −10 to +40 °C |
| Digital Input | 1 (alarm mute) |
| Digital Outputs | up to 12 alarm relays + 1 fault relay + 1 alarm label relay (all floating changeover contacts, 250 V AC / 4 A max) |
| Analog Output | 4–20 mA |
| Communication Interface | RS232 |
| Main Power Options | 230 V AC / 50 Hz |
| Enclosure Dimensions | 240 × 160 × 90 mm |
| Weight | ~2 kg |
| Ingress Protection | IP54 per DIN 40050 |
| Display | 4-line LCD with real-time value, 30-min average, and error messages |
| Keypad | 6-key menu-driven interface |
| Adjustable Alarm Thresholds | 2 independent setpoints per channel (5–100% of full scale) |
| Brand | ADOS |
|---|---|
| Origin | Germany |
| Model | MWS906 |
| Sensor Inputs | 16 (2-wire or 3-wire, e.g., GTR 196) |
| Power Supply | 24 V DC / 2 A |
| Operating Temperature | -10 to +45 °C |
| Enclosure Rating | IP54 per DIN 40050 |
| Dimensions | 390 × 270 × 160 mm |
| Weight | ~5 kg |
| Input/Output | 1 digital input (alarm reset), up to 48 digital outputs (floating changeover contacts, max. 250 V / 4 A), 1 alarm relay, 1 fault relay, 1 service relay, 1 alarm message relay |
| Analog Output | 4–20 mA |
| Communication | RS232 (for printer or PC connection) |
| Main Power Options | 230 V AC, 50 Hz (60 VA max) |
| Gas Measurement Ranges | O₂: 0–25 % vol |
| CO₂ | 0–4 % vol or 0–2000 ppm |
| CO | 0–300 ppm |
| NO₂ | 0–30 ppm |
| H₂S | 0–100 ppm or 0–10,000 ppm |
| NH₃ | 0–1000 ppm |
| H₂ | 0–100 % LEL or 0–1000 ppm |
| HCl | 0–10 ppm or 0–100 ppm |
| N₂O | 0–1 % vol |
| He | 0–100 % vol |
| SF₆ | 0–1000 ppm |
| O₃ | 0–5 ppm |
| ClO₂ | 0–50 ppm |
| CH₄ | 0–100 % LEL |
| C₂H₂ | 0–100 % LEL |
| C₂H₈O (ethanol) | 0–1000 ppm or 0–100 % LEL |
| C₃H₈ | 0–100 % LEL |
| C₄H₁₀ | 0–100 % LEL |
| C₄H₁₀O (diethyl ether) | 0–100 % LEL |
| C₇H₈ (toluene) | 0–100 % LEL or 0–2000 ppm |
| C₈H₁₀ (xylene) | 0–100 % LEL or 0–2000 ppm |
| LPG | 0–100 % LEL |
| R134a | 0–2000 ppm |
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