The Honeywell HM-PSE-S2 is an intelligent analog addressable photoelectric smoke detector engineered for integration into commercial and industrial addressable fire alarm loops. Proper mechanical mounting, address configuration, and electrical loop termination ensure seamless communication with compatible Honeywell fire alarm control panels.
Base Mounting and Physical Profile
The HM-PSE-S2 is designed as a plug-in unit that secures into the universal Honeywell B501AP detector base. The detector head twists directly into the base, enabling quick mechanical engagement and simplified field maintenance. When fully seated in the B501AP base, the complete assembly maintains a low-profile footprint with an installed diameter of 102 mm and an installed height of 52 mm. The net weight of the detector head including base is 97 g (gross packaged shipping weight is 0.13 kg). The white PC/ABS enclosure houses dual red status LEDs positioned to deliver 360° visual status indication from floor level.
Rotary Decade Switch Addressing
Device addressing is configured manually using two onboard rotary decade address switches located on the detector assembly:
- Address Range: Set the switches to assign any unique decimal address from 01 to 99 on the signaling line circuit (SLC).
- Configuration Method: Use a flat screwdriver to align the rotary dials to the designated tens and units digits according to the loop schedule prior to locking the head into the base.
- Protocol Compatibility: The device communicates via Honeywell's advanced digital/analog addressable protocol and remains both mechanically and electrically backwards compatible with existing Honeywell addressable loop installations.
Wiring and Terminal Connections
All field loop wiring terminates directly into the screw terminals on the universal B501AP mounting base rather than the detector head, allowing field pre-wiring and circuit continuity testing prior to head insertion:
- Wire Cross-Section: Base terminal blocks accommodate solid or stranded field conductors up to a maximum wire gauge of 2.5 mm².
- Base Loop Resistance: The additional loop resistance introduced by inserting the detector into the B501AP base is typically 20 mΩ (maximum 30 mΩ).
- Remote Annunciator Output: Dedicated terminals provide auxiliary output capability for driving a remote LED indicator. The remote output delivers 22.5 Vdc at 24 Vdc nominal loop voltage, with a maximum rated current load of 10.8 mA at 24 Vdc.
Loop Power and Electrical Ratings
| Parameter | Specification |
|---|---|
| Nominal Loop Supply Voltage | 24 Vdc |
| Maximum Standby Current (No Comm.) | 260 µA @ 24 Vdc |
| Maximum Standby Current (LED Blink Every 5s) | 310 µA @ 24 Vdc |
| Alarm LED Current Consumption | 3.5 mA @ 24 Vdc |
| Remote Annunciator Output | 22.5 Vdc, 10.8 mA max @ 24 Vdc |
Environmental and Site Placement Considerations
The HM-PSE-S2 is rated for operational ambient temperatures ranging from -30°C to +70°C and relative humidity levels between 10% and 93% (non-condensing). The detector incorporates an advanced hydrodynamic optical chamber design paired with internal processing circuitry and smoothing filters. This assembly resists nuisance alarms caused by settling dust, airborne insects, high air velocities, and back pressure. In dusty industrial environments, routine servicing is streamlined by the unit's washable chamber filter.
