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M1 Series Specifications
| PROBE | M12 | M13 |
| Humidity sensor | ROTRONIC Hygromer ™ C94 thin film capacitive | |
| Temperature sensor | Pt100 RTD | |
| Operating limits | 0...100%RH -40...60°C / -40...140°F |
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| Repeatability | better than 0.5%RH and 0.1°C/°F | |
| Humidity sensor stability | better than 1% RH per year | |
| Sensor protection |
W and D models: type
D15G, stainless steel wire mesh, PPS frame S model: n/a |
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| Probe material | Polycarbonate | |
| TRANSMITTER | M12 | M13 |
| Circuit type | 2-wire loop-powered | 3-wire |
| Signal type | 4...20 mA | 0...20
mA, 4...20 mA 0...1V, 0...5V, 0...10V |
| Standard output ranges | 0...100%
RH -30...70°C, 0...50°C or 0...100°F |
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| Accuracy at 23°C | ± 2.0% RH / ± 0.3°C (± 0.5°F) | |
| Operating limits | 0...99%
RH non condensing -40...60°C / -40...140°F |
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| Power supply | 10...28
VDC, 10 + 0.02 x load 20 mA per output |
10...35
VDC (50 mA) or 12...24 VAC minimum 15 V for current outputs < 50 mA |
| Maximum load for current outputs | 250 Ohm | |
| Minimum load for voltage outputs | n/a | 1000 Ohm |
| Electrical connections |
W and D models: cable
grip and terminals S model: terminals |
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| Housing material | ABS | |
| Protection grade |
W and D models: IP65/NEMA4 S model: IP52 / NEMA5 |
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| Weight |
W and D models:
292
g / 10.3 oz S model: 110 g / 4 oz |
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