Sentrol 5150 Series On-the-Glass Shock Sensors

Product Description

Sentrol On-the-Glass Shock Sensors, part of the 5150 Series, are designed for intrusion detection by sensing the shock of a glass break. They are suitable for all types of glass up to 1/4" thickness, including plate, wired, tempered, and laminated glass. These sensors are self-powered and connect directly into a closed alarm loop.

The sensors are not designed to detect cracks, bullet holes, window removal, or glass cutting without breakage. For comprehensive security, they should be used in conjunction with interior protection systems.

Note: Laminated glass, armor-coated glass, and plexiglass may reduce the detection range. Testing is recommended to ensure maximum detection, especially with these materials.

Models and Availability

Available models include:

• 5150-W
• 5150C-W
• 5150-M
• 5150C-M

The product is typically sold in quantities, with '5' noted as an example quantity.

Key Features

• Mounts directly on the glass.
• Two-wire, self-powered, solid-state design.
• Easy mounting using specially formulated 3M™ adhesive tape.
• Non-polarity sensitive wiring.
• Self-generating power means no impact on wireless transmitter battery life.

Installation Guide

Step 1: Mounting

To maximize detection range, mount the sensor approximately 1 inch (1") from any side of the glass frame. The sensors utilize industrial-grade acrylic tape designed to withstand sunlight and temperature changes.

For best adhesion:

• Ensure the glass surface is clean and dry. Apply a 50/50 solution of isopropyl alcohol and water to remove any residue.
• The ideal mounting temperature is between 70°F and 100°F (21°C to 38°C). Application at temperatures below 50°F (10°C) is not recommended as the adhesive may become too firm to adhere properly. Once applied, low temperatures do not affect the bond strength.
• Achieve strong bond strength by pressing the sensor firmly to the glass, ensuring good surface contact.

Visual Description: A diagram shows a square sensor mounted 1 inch from the top and left edges of a glass frame.

Step 2: Wiring

The 5150 is a two-wire device that does not draw power from the alarm loop. It generates its own power from the shock energy of a glass break using a piezo transducer.

The sensors are non-polarity sensitive and wire directly into the closed loop. When wiring multiple sensors in series, resistance is additive. The value of the end-of-line resistor may need adjustment for large quantities of sensors. Sentrol recommends a maximum of 10 sensors in series.

These sensors do not require a processor. Avoid wiring them into fast response loops, as this can lead to false alarms.

Step 3: Testing

Test the sensor by rapping the glass with the handle of a large screwdriver. Focus testing on likely points of attack, such as near door and window latches or lower areas prone to impact.

This method provides an accurate test, as the energy from a glass break is typically at least 50% greater than that from a screwdriver rap. Sentrol's experience indicates this method offers excellent testing with minimal risk of glass damage.

Use an ohmmeter connected across the sensor leads. The resistance should typically be around 14 ohms (13-24 ohms is acceptable). When the sensor is tripped by a shock, the resistance should increase to one Meg ohm and remain so for 1 to 10 seconds.

It is recommended to test the sensor at least once a year to ensure proper operation and detection.

Visual Description: A diagram shows a hand holding a screwdriver handle, about to rap a glass pane. Another diagram shows a sensor on glass, with an arrow indicating a connection to a panel or keypad. A third diagram shows a person walking away confidently.

Applications and Range

The 5150 series sensors are rated for all types of glass up to 1/4" thickness without adjustment. This includes plate, wired, tempered, and laminated glass.

The typical detection range is up to 10 feet (10').

Visual Description: A diagram shows a circular area representing a 10-foot maximum coverage radius around a point on glass.

Range Considerations:

• Laminated glass can reduce the specified range. Careful testing is advised.
• Armor-coated glass and plexiglass can reduce the specified range by approximately 50%, decreasing the detection radius from 10 feet to 5 feet.

Technical Specifications

Product Information

The Sentrol 5150 Series Shock Sensors are protected under patent 4,745,398 re. 33,807 and other patents.

Visual Description: A barcode is present with the number 0 46188 06851 7.