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Automatic oi test performs on each sensor once every minute. Fault relay de-energizes if fault detected.
Manual oi feature provides same test as automatic oi, actuates Alarm relay for output verification.
All U7652 models have two standard output relays rated for 5 amperes resistive at 30 vdc.
U7652C has auxiliary relay or 4-20mA output in addition to standard outputs.
Lists typical response distances of the U7652 Detector to various flammable materials.
Discusses conditions that can prevent response or cause false alarms, like arc welding and blackbody sources.
U7652 ignores arc welding beyond 10 feet; UV sensor responds to intense UV radiation.
Discusses IR radiation from objects above absolute zero and its potential effect on the IR sensor.
Position detector for unobstructed view of area, considering fire hazard location and detection range.
Details cable gauge, voltage, shielding, conduit, and sealing requirements for installation.
Troubleshooting for manual oi selection issues during startup or normal operation.
Troubleshooting for automatic oi selection issues during normal operation.
Maintain detector sensitivity by keeping viewing windows and oi rings clean at all times.
O-rings ensure watertight integrity; inspect for breaks, cracks, dryness, and proper seating.
Defines the spectral response range for UV (0.185-0.245 micron) and IR (4.45 microns) sensors.
Describes the detector's nominal 90-degree cone of vision with highest sensitivity along its central axis.
Details the detector's response distances to various fire sizes and fuel types like gasoline and JP-4.
Response time is field programmable for 0.5 or 3 seconds based on fuel, fire size, distance, and orientation.
Specifies ratings for Fire, Fault, and Auxiliary relays, including programmable latching/non-latching operation.
Specifies enclosure materials like copper-free aluminum or 316 stainless steel with mounting bracket.
Lists operating and storage temperature ranges for the detector.
Specifies the acceptable humidity range for detector operation and short-term condensation.
Lists various certifications including FMR, CSA, ULC, and NEMA/Type 4X enclosure rating.
Lists recommended accessories such as swivel mount assembly and air shield assembly.
Provides a list of recommended spare parts for the U7652 detector, quantities provided.
Lists specific approvals including fire alarm signaling, explosionproof, dust-ignitionproof, and ambient temperature limits.
General| Brand | Det-Tronics |
|---|---|
| Model | U7652 |
| Category | Security Sensors |
| Language | English |
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