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Photoelectric Fire Heat Temperature Detector
All of the Sentek’s HD912 series detectors meet the requirements of UL521 and EN 54-5 for use in fi re alarm signaling systems, which provide fast and reliable response for heat 57°C (135°F) or Rate-of-Rise detection, They are intended for use in 2-wire/4-wire Class A2 supervised zone circuits. The HD912 series detectors are subject to panel compatibility limits and compliance with corresponding NFPA 72E standards, local codes, and ordinances.
Specification:
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Product Name: |
Photoelectric Fire Heat Temperature Detector |
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Item |
HD912-2/2L |
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Response Temperature: |
Fixed termperature: 57°C (135°F) Rate-of-Rise: CLASS 2 (EN54-5); or 8°C/Min (UL521) |
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Ceiling Spacing: |
50 foot rating for heat sensor |
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Reset Voltage: |
less than 1 volt |
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Alarm Indicator: |
LED continuously emitting red light |
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Remote Output: |
25 mA max., diode gate |
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Temperature Range: |
-10°C to 50°C |
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Permissible Current: |
80mA maximum |
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Humidity: |
0 to 95% RH, no condensation or icing |
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Alarm Contact: |
(for 4-wire) NO or NC Operation, Form A: 1.0A@30VDC/0.5A@125VAC |
Photoelectric Fire Heat Temperature Detector
Feartures:
1)2 or 4 wire modles
2)Advanced detectiona and discrimination algorithms
3)Easy installation and mantenance
4)Sleek low-profil housing design
5)Durable sensor head , no need to replace
6)Normai open and normal closed selectable rely output
7)SMD circuit board design-satisfactory quality and reliability guaranteed
8) AR (Auto Reset) function for security systems (optional for 4 wire models) Sensor base option: standard and Shottky Diode
9) Five-year limited warrantyFive years limited warranty
The range includes:
HD912-2 2 wire heat alarm
HD912-2L 2 wire heat alarm with remote LED output
HD912-4 4 wire heat alarm (12/24VDC)
HD912-4B 4 wire heat alarm with buzzer (12/24VDC)
HD912-4AR 4 wire heat alarm with auto-reset function (12/24VDC)
HD912-4ARB 4 wire heat alarm with auto-reset function and buzzer (12/24VDC)
| Model | 2/4 wire |
Voltage DC (Min./Max.) |
Standby Current (Max.) |
Alarm Current (12/24V) |
Surge Current (Max.) |
Start-Up Time (Max.) |
Permissible Current (Max.) |
Cycle Time |
Alarm contact |
Certified | Base Model No. |
| HD912-2 | 2 | 10~33V | 45μA | 50mA | 100μA | 30Sec. | 80mA | 1-3 Sec. | — | UL/EN | P/N852001 |
| HD912-2L | 2 | 10~33V | 45μA | 50mA | 100μA | 30Sec. | 80mA | 1-3 Sec. | — | UL/EN | P/N854001 |
| HD912-4-12/24 | 4 | 12/24V | 45μA | 30mA | 100μA | 30Sec. | — | 1-3 Sec. | Form A | UL/EN | P/N854001 |
| HD912-4AR-12/24 | 4 | 12/24V | 45μA | 30mA | 100μA | 30Sec. | — | 1-3 Sec. | Form A Auto Reset |
CE | P/N854001 |
| HD912-4ARB-12/24 | 4 | 12/24V | 45μA | 30mA | 100μA | 30Sec. | — | 1-3 Sec. | Form A Auto Reset |
CE | P/N854001 |
| HD912-4B-12/24 | 4 | 12/24V | 45μA | 30mA | 100μA | 30Sec. | — | 1-3 Sec. | Form A | CE | P/N854001 |
