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Rosemount
Rosemount 975MR Flame Detector
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المعاملات الرئيسية
Output
Relay outputs; 0–20 mA; HART; RS-485 Modbus
Approvals
FM; ATEX; IECEx; SIL; Declaration of Performance for 975MR
Detection Type
Multi-spectrum triple-IR (IR3) flame detector for hydrocarbon gas and liquid fires
Detection Range
Up to 300 ft (90 m) depending on fuel and sensitivity
Response Time
High-speed response under 50 ms for LPG-air explosions (per Emerson PDS)
Field Of View
100° horizontal / 95° vertical typical
| المعامل | القيمة |
|---|---|
| Output | Relay outputs; 0–20 mA; HART; RS-485 Modbus |
| Approvals | FM; ATEX; IECEx; SIL; Declaration of Performance for 975MR |
| Detection Type | Multi-spectrum triple-IR (IR3) flame detector for hydrocarbon gas and liquid fires |
| Detection Range | Up to 300 ft (90 m) depending on fuel and sensitivity |
| Response Time | High-speed response under 50 ms for LPG-air explosions (per Emerson PDS) |
| Field Of View | 100° horizontal / 95° vertical typical |
| Spectral Bands | Four IR bands in the 4–5 µm region |
| Sensitivity Levels | Six user-selectable sensitivity levels |
| Operating Temperature | −60 to +85 °C (−76 to +185 °F) |
| Enclosure | Stainless steel / aluminum explosion-proof / weatherproof housing per PDS |
| Comms | HART and RS-485 Modbus configuration / diagnostics |
| Special Features | Heated optics options; built-in test; immunity to false alarms from sunlight/welding |
| Form Factor | Fixed multi-spectrum IR flame detector for oil & gas, tank farms, compressor stations |
| Family | Rosemount 975 flame detector family (975MR multi-spectrum IR variant) |