1 week lead time to ship
- Integrating Version
- Flashing LED: The alarm indicating LED flashes when the detector is in a quiescent state
- Responds well to fast-burning, flaming fires
- Designed to operate in a variety of environments
The Series 65 Ionization Smoke Detector uses a low activity radioactive foil to detect fires by irradiating the air in the smoke chamber and causing a current flow. If smoke enters the chamber, the current flow is reduced leading to an alarm.
Circuitry in the Integrating Ionization Smoke Detector protects against transient levels of smoke above the normal threshold level for 10 to 20 seconds. The sensitivity of the detector is not affected by this modification.
| Detector Part no: | 55000-219 |
| Detector Type: | Point type smoke detector for fire detection and alarm systems for buildings |
| Detection Principle: | Ionization chamber |
| Chamber Configuration | Twin compensating chambers using one single-sided ionising radiation source |
| Radioactive Isotope: | Americium 241 |
| Activity: | 33.3 k Bq, 0.9µCi |
| Supply wiring: | Two wire monitored supply, polarity insensitive |
| Terminal functions: | L1 IN and L2: supply in connections (polarity insensitive)
L1 OUT and L2: supply out connections (polarity insensitive)
?R: remote indicator negative connection |
| Supply Voltage: | 9 to 33V DC |
| Ripple Voltage: | 2V peak to peak maximum at 0.1Hz to 100kHz |
| Quiescent Current: | 20-45µA at 24V |
| Switch-on Surge Current: | 110µA |
| Alarm voltage: | 6 to 33V |
| Normal Alarm Current: | 61mA at 28V
52mA at 24V
18mA at 10V |
| Alarm indicator: | Red, Light Emitting Diode (LED) |
| Design Alarm Load: | 420Ω in series with a 2V drop |
| Holding Voltage: | 6V (min) |
| Holding Current: | 10mA (min) |
| Minimum Voltage Required to Illuminate Indicator: | 12V |
| Alarm Reset Voltage: | 1V |
| Alarm Reset Time: | 1 second |
| Remote Output Characteristics: | Remote is a current sink to the negative line limited to 17mA |
| Calibration: | Factory set to ΔV of 0.8V |
| Sensitivity: | Nominal threshold Y value of 0.7 to EN 54-7: 2000 |
| Temperature Range: | Maximum continuous operating temperature: 60°C
Minimum continuous operating temperature: 0°C
Minimum operating temperature: -20°C
(no condensation or icing)
Storage: -30°C to 80°C |
| Temperature Compensation: | Automatic compensation by dual chambers to comply with EN 54-7: 2000 across the operating temperature range |
| Humidity: | 0 to 95% relative humidity
(no condensation) |
| Atmospheric Pressure: | Automatic compensation by dual chambers to maintain sensitivity up to a height of 2000m |
| Wind Speed: | 10m/s maximum |
| IP rating: | 23D in accordance with BS EN 60529 |
| Dimensions: (dia x height) | Detector: 100x42mm
Detector in Base: 100x50mm |
| Weights: | Detector: 102g
Detector in Base: 153g |
| Materials: | Detector Housing: White polycarbonate rated V-0 in accordance with UL94
Terminals: Nickel plated stainless steel |
