239/1ST UV High Temperature Flame Detector with Self-Test (660) - Stainless Steel by Crowcon
The 20/20M Mini Series Flame Detectors are high performance, unique IR3 and UV/IR flame detectors featuring lower cost, lower power, and more compact structures. The mini detectors are highly resistant to harsh environments, immune to false alarms and are designed for use in OUTDOOR or INDOOR applications. The IR3 model is also available as intrinsically safe (I.S.) approved format.
The detectors' small size, low cost and low power allow easy installation in small or congested areas where Ex hazardous area approvals are not a prime requirement. Both models are packaged in rugged, stainless steel enclosures that are less than 50% of the size of our standard explosion-proof detectors and weigh only 2.5 lbs (1.2 kg).
20/20ML MINI UV/IR FLAME DETECTOR
The low cost, compact, lightweight 20/20ML UV/IR Flame Detector comprises both UV and IR sensors, detecting hydrocarbon-based fuel and gas fires, hydroxyl and hydrogen fires, as well as metal and inorganic fires at distances of up to 50 ft (15m). The UV sensor incorporates a special logic circuit that helps prevent false alarms caused by solar radiation. Simultaneous detection of radiant energy by both the UV and IR sensors triggers an alarm signal.
Main Features
- Immune to False Alarms
- Large Field of View (100° horizontal/vertical)
- Low Power Consumption
- High-Speed Response
- Standard 4-Wire Connection
- 4-20mA Sink or Source (3-4 wires) Configuration
- RS-485 Modbus Compatible
- Automatic and Manual Built-In-Test (BIT)
- User-Programmable Function Con!gurable via software from a PC or handheld device
- MTBF Minimum 100,000 Hours
- 3 Year Warranty
Main Applications
- Aircraft Hangars
- Off road heavy duty vehicle
- Office areas and atrium areas
- Waste handling
- Unmanned gas stations
- Marine vessels engine rooms
20/20MI-1 |
20/20MI-3 |
20/20ML |
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General Specifications | ||||
Spectral Response | Triple Spectrum Design |
UV/IR Dual Sensor |
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ft (m) |
ft (m) |
ft (m) |
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Detection Range (Highest Sensitivity Setting for 1 ft2 (0.1m2) pan fire) | Gasoline | 133 (40) |
33 (10) |
50 (15) |
n-Heptane | 133 (40) |
33 (10) |
50 (15) |
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Diesel Fuel | 90 (27) |
23.1 (7) |
37 (11) |
|
JP5 | 100 (30) |
23.1 (7) |
37 (11) |
|
Kerosene | 100 (30) |
23.1 (7) |
37 (11) |
|
Alcohol (Ethanol) | 100 (30) |
24.8 (7.5) |
25 (7.5) |
|
IPA (Isopropyl Alcohol) | 100 (30) |
24.8 (7.5) |
25 (7.5) |
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Methanol | 100 (30) |
24.8 (7.5) |
25 (7.5) |
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Methane* | 40 (12) |
10 (3) |
15 (5) |
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LPG (Propane)* | 40 (12) |
10 (3) |
15 (5) |
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Hydrogen* | --- |
15 (5) |
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Silane* | --- |
15 (5) |
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Polypropylene Pellets | 16 (5) |
6 (2) |
15 (5) |
|
Office Paper | 50 (15) |
13 (4) |
12 (4) |
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*20" (0.5m) long 8" (0.2m) width plume fire | ||||
Response Time | Typical 5 sec. | |||
Adjustable Time Delay | Up to 30 sec. | |||
Sensitivity Range | 4 Sensitivity Ranges for 1 ft2 (0.1m2) gasoline pan fire: 33 ft (10m)–133 ft (40m) |
4 Sensitivity Ranges for 1 ft2 (0.1m2) gasoline pan fire: 7.5 ft (2.5m)–33 ft (10m) |
1 Sensitivity Range for 1 ft2 (0.1m2) gasoline pan fire: 50 ft (15m) |
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Field of View | 100° horizontal, 100° vertical | |||
Built-in-Test | Manual and Automatic BIT | |||
Temperature Range | Operating: -40°F (-40°C) to 160°F (70°C) Storage: -65°F (-55°C) to 185°F (85°C) |
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Humidity | Up to 95% | |||
Electrical Specifications | ||||
Power Supply | Operating Voltage: 18-32 VDC | |||
Power Consumption | Max. 25 mA in stand-by Max. 50 mA in alarm |
Max. 40 mA in stand-by Max. 70 mA in alarm |
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Electrical Connection | 12 wires 6 ft (2m) cable (for junction box connection) Optional: 12- wires electrical connector (the suitable connector will be supplied) |
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Electrical Input Protection | According to MIL-STD-1275B | |||
Electromagnetic Compatibility | EMI/RFI protected CE Marked | |||
Outputs | ||||
Relays | Alarm and Fault SPST volt-free contact rates 2A at 30 VDC or 0.5A at 250 VAC Fault relay normally closed, Alarm Relay normally open *The Relays do not apply to 20/20MI EX approved version |
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4-20mA | Sink (source option) configuration |
Source configuration |
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Fault: |
0 + 0.5mA |
0 + 0.5mA |
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BIT Fault: |
2mA + 10% |
2mA + 10% |
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Normal: |
5mA + 10% |
4mA +5% |
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IR Detection: |
--- |
8mA +5% |
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UV Detection: |
--- |
12mA +5% |
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Warning: |
10mA + 5% |
16mA + 5% |
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Alarm: |
15mA + 5% |
20mA + 5% |
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Resistance Loop: |
100-600 Ω |
100-600 Ω |
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RS-485 | The detector is equipped with an RS-485 communication link that can be used in installation with computerized controllers. The RS-485 is Modbus compatible. | |||
Mechanical Specifications | ||||
Dimensions | 4" x 4" x 2.5" (100 x 100 x 62 mm) | |||
Weight | St.St 316L 2.5lb (1.2 kg) Tilt Mount 0.8lb (0.37 kg) |
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Enclosure | Stainless Steel 316L with electro polish finish | |||
Environmental standards | Meets MIL-STD-810C for humidity, Salt & Fog, Vibration, Mechanical Shock, High Temp, Low Temp | |||
Water and Dust | IP66 and IP67 per EN60529 NEMA 250 6P |
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Approvals | ||||
Hazardous Area Ex Approvals | ||||
ATEX** | 04ATEX2010 EX II 1 GD, EExia IIC T5 (60°C), T4 (85°C) Zener barriers (not included) are required to achieve the stated approval ** The Relays do not apply to 20/20MI EX approved version |
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Functional Approvals | ||||
FM | Project ID 3020071 | Project ID 3013906 | Project ID 3020071 | |
VdS (EN54-10) | G207073 | --- | --- | |
CPD Certificate of Conformity | 0786-CPD-20916 | --- | --- | |
GOST R | POCC US.HO06.B00103 | |||
Other Approvals | ||||
DNV | A-12318 | --- | ||
ABS | Project No. 1627964 | --- | ||
GOST K | KZ.7500507.01.01.00029 |