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FST Series Specifications
| PROBE | FST-12 | FST-13 |
| Humidity sensor | ROTRONIC Hygromer ™ C94 thin film capacitive | |
| Temperature sensor | Pt100 RTD | |
| Operating limits | 0...100%RH 0...50°C / 32...122°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 | type D15G, stainless steel wire mesh, PPS frame | |
| Probe material | Polycarbonate | |
| TRANSMITTER | FST-12 | FST-13 |
| 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 |
| Measuring range |
30...60%
RH 0...50°C or 50...100°F or 0...100°F |
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| Accuracy at 23°C | ±1.0% RH
from 35 to 50 %RH ± 0.2°C from 20 to 25.5°C / ± 0.4°F from 68 to 78°F |
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| 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 | cable grip and terminals | |
| Housing material | ABS | |
| Protection grade | IP65/NEMA 4 | |
| Weight | 292 g / 10.3 oz | |
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