B401BH SYSTEMSENSOR | Alldatasheet
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D400-50-00 1 I56-0612-005R B401BH and B401BHA Sounder Bases INSTALLATION AND MAINTENANCE INSTRUCTIONS 3825 Ohio Avenue, St. Charles, Illinois 60174 1-800-SENSOR2, FAX: 630-377-6495 www.systemsensor.com Before Installing Please thoroughly read the System Sensor manual I56-407, Guide for Proper Use of System Smoke Detectors , which provides detailed information on detector spacing, place- ment, zoning, wiring, and special applications. Copies of this manual are available at no charge from System Sensor. NFPA 72 and NEMA should be observed. (For installa- tion in Canada, refer to CAN/ULC-S524, Standard for the Installation of Fire Alarm Systems and CEC Part 1, Sec. 32.) NOTICE: This manual should be left with the owner/user of this equipment. IMPORTANT: The detector used with these bases must be tested and maintained regularly following NFPA 72 requirements. The detector used with these bases should be cleaned at least once a year. Specifications Base Diameter: 6 inches (152 mm) Base Height (less base and sensor): 0.75 inches (19mm) Weight: 0.3 lb. (140 g) Operating Temperature Range: 14° to 140°F (–10° to +60°C) Operating Humidity Range: 10% to 95%, noncondensing Electrical Ratings Voltage: 17 to 32 VDC Standby Current: 1.0 mA maximum Alarm Current: 15 mA maximum Maximum Ripple Voltage: 10% of supply voltage Start-up Capacitance: 200 µF Horn Input Current Requirement: 600 µA maximum Sound Output: Greater than 90 dBa measured in anechoic room at 10 feet (3 meters), 24 volts. 85 dBa minimum measured in UL reverberant room. General Description Models B401BH and B401BHA sounder bases are intended for use with System Sensor 400 Series plug-in sensor heads in conventional 2-wire plug-in systems. Refer to systems manuals for the maximum allowable number of units per loop. The B401BH requires an external 24VDC (nominal) supply with reverse polarity capability. The connections of the external supply (terminals 1 and 2) and the initiating loop (terminals 3, 4, and 5) are isolated in the B401BH to prevent electrical interaction between them. When the detector head’s visible LEDs are latched on for approximately 10 seconds, the associated horn sounds. A loop of horns can be made to sound by reversing the polar ity of the external supply. NOTE: When the associated system is NOT used as a sup- plementary evacuation system, the external 24VDC supply must be treated as a component of the main power supply system with the result that it falls under the requirements of NFPA 72. I56-0612-005R
1 External Supply Positive (+)
2 External Supply Negative (–)
3 Negative (–) V
4 Positive (+) V In
5 Positive (+) V Out
from responding properly in the event of a fire. electrical interference on the initiating loop. the connections are supervised, as shown in Figure 2. DO NOT loop the wire under the clamping plate. ity, and dielectric tests on the wiring. being used before wiring the detector loops. Figure 1. Terminal Layout:
D400-50-00 4 I56-0612-005R ©2007 System Sensor System Sensor warrants its enclosed base to be free from defects in materi- als and workmanship under normal use and service for a period of three years from date of manufacture. System Sensor makes no other express warranty for this base. No agent, representative, dealer, or employee of the Company has the authority to increase or alter the obligations or limita- tions of this Warranty. The Company’s obligation of this Warranty shall be limited to the repair or replacement of any part of the base which is found to be defective in materials or workmanship under normal use and service during the three year period commencing with the date of manu- facture. After phoning System Sensor’s toll free number 800-SENSOR2 (736-7672) for a Return Authorization number, send defective units postage prepaid to: System Sensor, Repair Department, RA #__________, Testing Before testing, notify the proper authorities that the smoke detector system is undergoing maintenance and that the system will be temporarily out of service. Disable the zone or system undergoing maintenance to prevent unwanted alarms. Detectors and bases must be tested after installation and following periodic maintenance. Test the B401BH/B401BHA as follows: 1. Test the conventional detector head following the proce- dure in its manual. The B401BH/B401BHA should sound approximately 10 seconds after the detector alarms. 2. Reverse the polarity of the external 24 VDC supply. This should cause every base in the loop to sound after approximately 10 seconds. Please refer to insert for the Limitations of Fire Alarm Systems Three-Year Limited Warranty 3825 Ohio Avenue, St. Charles, IL 60174. Please include a note describing the malfunction and suspected cause of failure. The Company shall not be obligated to repair or replace units which are found to be defective because of damage, unreasonable use, modifications, or alterations occur- ring after the date of manufacture. In no case shall the Company be liable for any consequential or incidental damages for breach of this or any other Warranty, expressed or implied whatsoever, even if the loss or dam- age is caused by the Company’s negligence or fault. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state.