1. Product Overview
The STI-1100 Stopper II is a protective polycarbonate cover designed to deter false fire alarms while allowing legitimate access. This flush-mount device features an integrated horn that sounds when the cover is lifted, alerting personnel to potential misuse. Its robust construction provides protection against physical damage and tampering.
Figure 1: Front view of the STI-1100 Stopper II protective cover. This image displays the clear polycarbonate cover with the red alarm housing visible at the top, featuring the text 'IN CASE OF FIRE - LIFT ACTIVATE FIRE ALARM' and 'LIFT HERE' at the bottom.
2. Setup and Installation
The STI-1100 Stopper II is designed for flush mounting over existing fire alarm pull stations. Proper installation ensures optimal protection and functionality.
2.1 Components
- Polycarbonate Cover
- Mounting Frame
- Integrated Horn (95 dB or 105 dB)
- Cable connecting cover to frame
- Battery (included)
- Mounting hardware (screws)
2.2 Installation Steps
- Prepare the Mounting Surface: Ensure the surface around the fire alarm pull station is clean and flat for proper flush mounting.
- Position the Frame: Place the mounting frame over the fire alarm pull station. Ensure it aligns correctly and does not obstruct the pull station's operation.
- Secure the Frame: Use the provided mounting hardware to securely attach the frame to the wall. Do not overtighten.
- Install Battery: Open the alarm housing (typically located within the red section) and insert the included battery, observing correct polarity.
- Attach Cover: Connect the polycarbonate cover to the frame via the integrated cable. Snap the cover onto the frame, ensuring it closes securely.
- Test Functionality: Briefly lift the cover to ensure the horn sounds. Close the cover to verify the horn stops.
Figure 2: Side view of the STI-1100 Stopper II, illustrating its flush-mount design. This image shows the depth and how the unit sits against a wall.
3. Operating Instructions
The STI-1100 Stopper II operates as a deterrent and protective cover for fire alarm pull stations.
- Normal Operation: The clear polycarbonate cover remains closed, protecting the fire alarm pull station from accidental activation or tampering.
- Alarm Activation: When the cover is lifted to gain access to the fire alarm pull station, the integrated horn will sound. This alerts nearby personnel to the potential activation of the fire alarm.
- Horn Deactivation: The horn will stop sounding once the cover is snapped back onto the frame.
- Legitimate Alarm Activation: In a genuine emergency, lift the cover, activate the fire alarm pull station, and then close the cover.
4. Maintenance
Regular maintenance ensures the continued reliability and functionality of your STI-1100 Stopper II.
- Battery Function Check: The end user must verify the alarm and battery function every six months. Briefly lift the cover to ensure the horn sounds clearly.
- Battery Replacement: Replace the battery annually or as required if the horn sounds weak during the function check. Use a 9V battery (included with the unit).
- Cleaning: Clean the polycarbonate cover with a soft, damp cloth. Avoid abrasive cleaners that could scratch the surface.
- Physical Inspection: Periodically inspect the cover and frame for any signs of damage or wear. Ensure the cable connecting the cover to the frame is intact.
5. Troubleshooting
If you encounter issues with your STI-1100 Stopper II, refer to the following common troubleshooting steps:
- Horn Not Sounding:
- Check the battery. Ensure it is correctly installed and not depleted. Replace if necessary.
- Verify that the cover is fully lifted to trigger the alarm mechanism.
- Cover Not Securing Properly:
- Inspect the mounting frame and cover for any obstructions or damage that might prevent proper closure.
- Ensure the frame is securely mounted to the wall and not loose.
- Weak Horn Sound:
- This typically indicates a low battery. Replace the battery immediately.
For issues not resolved by these steps, please contact STI customer support.
6. Specifications
| Feature | Detail |
|---|---|
| Model Number | STI-1100 |
| Brand | STI (Safety Technology International, Inc.) |
| Mounting Type | Flush Mount |
| Material | Polycarbonate |
| Color | Red (Alarm Housing), Clear (Cover) |
| Sound Level | 95 dB or 105 dB |
| Power Source | Battery (12 Volts DC) |
| Operating Temperature | -40°F to 120°F (-40°C to 49°C) |
| Dimensions (Product) | 5 x 3.19 x 6.5 inches |
| Item Weight | 1 pound (16 ounces) |
| Certifications | UL Listed to U.S. and Canadian safety standards |
7. Warranty Information
Safety Technology International, Inc. provides the following warranty for the STI-1100 Stopper II:
- Polycarbonate Housing: Lifetime guarantee against breakage in normal use.
- Electronic Components: One-year warranty.
This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from misuse, abuse, unauthorized modification, or improper installation.
8. Support and Contact
For technical assistance, warranty claims, or further information regarding your STI-1100 Stopper II, please contact Safety Technology International, Inc. directly.
Manufacturer: Safety Technology International, Inc.
Please refer to the official STI website or product packaging for the most current contact details.
