Key Features
- Heat detector detects rate of rise and fixed temperature
- Address settable from 001 to 254 by a dedicated programmer
- Automatic sensitivity compensation
- Well suited for sensitive environments
- Corresponds to auto-test function of Velocity MMP series control panel
Overview
Velocity Addressable Smoke & Heat Detectors are stylish, low-profile combined photoelectric and heat detectors designed to be used as part of a Velocity MMP fire alarm system.
These analogue addressable detectors are assigned their own unique address at the factory which allows them to be easily identified on the system.
Smoke sensitivity can be programmed to suit the environment using the control panel’s software and is continuously monitored and reported at the panel.
The detector’s sophisticated smoke chamber provides the same sensitivity regardless of smoke type and has a chemically etched, stainless steel insect screen to protect the detection elements from insects and airborne contaminants.
The Velocity Addressable Smoke & Heat Detector incorporates a highly-linear thermistor circuit that initiates an alarm when it detects a rapid rise in temperature or at a fixed heat of 57°C.
Approvals
All components in the Velocity range are UL certified and comply with the requirements of Underwriters Laboratories (UL) 864 Control Units and Accessories for Fire Alarm Systems 10th Edition.
Tech Specs
| Detector Element (Smoke) | LED (Peak Wavelength 630 nm) Photodiode (High-Output, High-Speed Silicon Photodiode) |
| Detector Element (Heat) | Thermistor (Negative Temperature Coefficient) |
| LED Visual Indicator | Stand-By – Flashing green LED Alarm – Solid Red LED with Flashing Green |
| Operating Voltage | 20 VDC to 38 VDC Peak |
| System Voltage | 35 VDC |
| Stand-by Current | 200 µA |
| Alarm Current (with Red LED) | 5 mA |
| Sensitivity | 0.66 %/Ft to 3.49 %/Ft |
| Fixed Heat Alarm Temperature | 57 °C (135 °F) |
| Rate of Rise Detection | Responds to Greater Than 8.3 °C (15 °F) / Min. |
| Operating Temperature | -10 °C to +55 °C (14 °F to 131 °F) |
| Storage Temperature | -20 °C to +60 °C (-4 °F to 140 °F) |
| Relative Humidity | ≤ RH 95 % Non-Condensing |
| Addressing Method | Soft addressing, Non-Volatile EEPROM |
| Address | 1 to 254 (Decimal) |
| Maximum Quantity Per Loop | 254 Units |
| Material | IDEMITSUKOSAN R2200 |
| Dimensions (W x H) | 104mm x 42 mm (Detector Head Only) 104mm x 57 mm (Detector Head and VDOT-UB4 Base) |
| Weight | 105g (Detector Head Only)170g (Detector Head and VDOT-UB4) |
| Standard | UL268 and UL521 |