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Rosemount
Rosemount 248R Temperature Transmitter
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المعاملات الرئيسية
Accuracy
Basic Pt100 digital ≤0.20 °C; total analog = digital + D/A (example ±0.30 °C over 100 °C span)
Output
4–20 mA with HART 7 (option RK)
Supply
Ordinary location 7.5–48 Vdc; hazardous approval 7.5–30 Vdc
Protection
IP20
Ambient temperature
−50 to +85 °C operating and storage
Mounting
DIN rail mount, 23.5 mm thickness
| المعامل | القيمة |
|---|---|
| Accuracy | Basic Pt100 digital ≤0.20 °C; total analog = digital + D/A (example ±0.30 °C over 100 °C span) |
| Output | 4–20 mA with HART 7 (option RK) |
| Supply | Ordinary location 7.5–48 Vdc; hazardous approval 7.5–30 Vdc |
| Protection | IP20 |
| Ambient temperature | −50 to +85 °C operating and storage |
| Mounting | DIN rail mount, 23.5 mm thickness |
| Sensor Inputs | Single sensor; universal RTD, thermocouple, mV, ohms |
| Stability | ±0.05% of span/year; ±0.18% of span/5 years |
| Isolation | Ordinary 2.5 kVAC / 55 VAC; hazardous 2.5 kVAC / 42 VAC |
| Dimensions | 109 × 23.5 × 104 mm (H×W×D); weight ~150 g |
| Response Time | 70 ms; programmable damping 0–60 s |
| Diagnostics | NAMUR NE21, NE43, NE44, NE89, NE107; open/short sensor diagnostics |