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4WTAR-B Smoke Detectors with Sounder and Relay Option.
System Sensor i3™ sounder and relay smoke detectors apply the guiding principles of installation ease, intelligence, and instant inspection in a series of specialty conventional devices. Installation ease. Throughout the i3 series, installation is simple with its installer-friendly base and plug-in design. The base accommodates a broad range of back box and direct mounting options and provides ample space for pre-wiring the device. To complete the installation, the i3 detector plugs into its base with a simple Stop-Drop ’N Lock action. Intelligence. To reduce the likelihood of nuisance alarms, all i3 detectors are equipped with both drift compensation and smoothing algorithms. These capabilities minimize both short- and long-term causes of nuisance alarms, such as RF interference and dust accumulation. When connected to the 2W-MOD2 loop test/ maintenance module or an i3 Ready™ panel, 2?wire i3 detectors can generate a remote maintenance signal when in a maintenance or freeze trouble condition. To measure the sensitivity of any i3 detector, the SENS-RDR displays the reading, in terms of percent-per-foot obscuration, within seconds. Instant inspection. i3 has red and green LEDs to simplify local status indication during power-up, standby, alarm, maintenance, and freeze trouble conditions. When in alarm, i3 sounder models generate an 85 dB temporal tone. If connected to the RRS-MOD reversing relay/synchronization module, all i3 sounders on the loop will activate when one detector is in alarm. The RRS-MOD also synchronizes i3 sounder output to ensure a clear audible signal. Should the application call for differentiating between a local and a general alarm, the i3 line offers an isolated thermal model, which initiates a local alarm when smoke is detected, and a general alarm when the thermal sensor is activated.
Features
- 85 dB sounder.
- Form C relay.
- Isolated thermal sensor.
- Plug-in design (base included.
- In-line terminals.
- Flexible mounting options.
- Stop-Drop ’N Lock™ attachment to the base.
- Removable cover and chamber.
- Remote maintenance signaling.
- Drift compensation and smoothing algorithms.
- Simplified sensitivity measurement.
- Dual-color LEDs.
Specifications
| Operating Voltage: | Standby Current: | 2-wire: 50 ?A maximum average 4-wire: 50 ?A maximum average | Peak Standby Current: | 2-wire: 100 ?A 4-wire: n/a | |
| Maximum Ripple Voltage: | 30% peak to peak of applied voltage | ||||
| Maximum Alarm Current | 2-wire: 2WTR-B: 130 mA limited by control panel 2WTA-B: 130 mA** 4-wire: 4WTA-B, 4WTR-B: 35 mA 4WTAR-B, 4WITAR-B: 50 mA **Direct Power (Non-Reverse Polarity): 130 mA limited by panel. Reverse Polarity Power: 30 mA for the 2WTA-B in alarm; 12 mA for all other 2WTA-B units on the loop. Add 25 mA for the RRS-MOD reversing relay alarm current. | ||||
| Operating Temperature Range: | 32°F to 100°F (0°C to 37.8°C) | ||||
| Operating Humidity Range: | 0 to 95% RH non-condensi | ||||
| Thermal Sensor: | 135°F (57.2°C) fixed | ||||
| Sensitivity: | 2.5%/ft nominal | ||||
| Input Terminals: | 14 to 22 AWG | ||||
| Dimensions (including base): | 5.3 inches (127 mm) diameter; 2.0 inches (51 mm) height | ||||
| Weight: | 6.3 oz. (178 grams) | ||||
| Mounting: | 3.5-inch (8.8 cm) octagonal backbox 4-inch (10.16 cm) octagonal backbox. Single-gang back box 4-inch (10.16 cm) square backbox with plaster ring. Direct mount to ceiling.) |