Designed for chemical-laden harsh environments, the Model D390 is the most suitable flame detector for semiconductor cleanrooms and wet benches.
The Model D390 is a stand-alone 3IR fire & flame detector in a totally sealed polypropylene enclosure specifically designed for semiconductor clean rooms and wet benches. The D390 detectors is optimized to respond to fire sources from hydrocarbon and non-hydrocarbon fuels while rejecting non-fire false alarm sources. The D390 detectors requires an external 24 VDC power source and is supplied with Alarm / Auxiliary / Fault relays, 4-20 mA Analog and RS485 Modbus outputs. The flame detector is supplied with an integral 10-foot Teflon Coated multi-conductor cable for wiring to external devices. The detector can store 200 events and 6FireGraphs in its FRAM memory.
| Multi-Spectrum Detection | 3IR design detects flame and fire across multiple spectrums for high false alarm immunity. |
| Outputs | Alarm, fault, and auxiliary relays; 4–20 mA analog output; RS485 Modbus® for seamless system integration. |
| Event Logging | Stores events and 6 FireGraphs® for accurate tracking and analysis. |
| Automatic Self-Test | Checks electronic circuitry and optical path integrity using OptiRadar® technology. |
| Enclosure | Leak-proof polypropylene enclosure. |
| Installation | Integral cable harness simplifies field wiring, with test mode for manual testing. |
| Warranty | Made in the USA with a 5-Year Warranty. |
| General | |
|---|---|
| Field of View | 90° |
| Response Time | Alarm: 3–5 Seconds |
| Spectral Sensitivity | IR: 2–5 microns (3 discrete bands) |
| Detection Range | 2 in Dia. n-Heptane fire: 4.5 ft.; 12 × 12 in IPA fire: 30 ft. |
| Electrical | |
|---|---|
| Operating Voltage | 24 VDC nominal (18–31 VDC), regulated |
| Power Consumption | Standby: 60 mA @ 24 VDC; Alarm: 90 mA @ 24 VDC |
| Visual Indications | Green LED (Normal), Red LED (Alarm), Amber LED (Fault) |
| Communication | RS485 Modbus |
| Wiring | Integral cable harness, 10 ft. long; 20 AWG 15 conductor shielded cable |
| Analog Output | 0–20 mA stepped source |
| Relay Outputs | Alarm, Auxiliary & Fault; SPDT contacts rated 2 A @ 24 VDC. Alarm/Auxiliary relays: De-energized; Fault relay: Energized when powered. |
| Mechanical | |
|---|---|
| Enclosure Material | Molded Polypropylene |
| Weight | 2.5 lb (1.1 kg), including cable |
| Environmental | |
|---|---|
| Operating Temperature | -40°F to +158°F (-40°C to +70°C) |
| Humidity Range | 5–95% relative humidity, non-condensing |
| Enclosure Type | NEMA 4 & 4X, IP67, watertight and dust-tight |
| Semiconductor Clean Rooms |
| Wet Bench Working Area |
| Wet Bench Plenum |
| Semiconductor Processing Facilities |
| Equipment Behind Wet Bench Area |
| Under-Floor Area of Clean Rooms |
| Hazardous Location Rating | Class I, Div. 2, Groups B, C, D (Zone 2) |
| Dust Hazard Rating | Class II/III, Div. 2, Groups E, F, G |
| EMC / RFI Compliance | RFI & EMC compliant |
| SIL Rating | Meets SIL 2 requirements |
| D390-111-K11 | Detector with sealed Polypropylene enclosure, Kal-Rez O-Ring, Relays & 4–20 mA outputs, and 10-ft. cable |
| DA-004 | Polypropylene Bracket Mounting Assembly |
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