BEA MS51 Battery-Powered Touchless Activation Sensor Instruction Manual

BEA MS51 Battery-Powered Touchless Activation Sensor

Product Information

The MS51 is a battery-powered, touchless activation device that utilizes active infrared technology. It has two infrared sensors and a detection range of up to 8 inches (20cm). The device is designed to have a battery life of 3 years with an average of 150 activations per day. It features a single electronic relay with galvanic isolation and can handle a maximum switching voltage of 42 VAC/VDC and a maximum switching current of 100 mA. The power supply requires 2 AA batteries with a maximum voltage of 1.5V each. The device consumes less than 0.5 mW when idle and less than 12 mW upon activation. It is made of stainless steel 304 and PC material, weighing approximately 0.34 lb for single gang, 0.55 lb for double gang, 0.71 lb for round, and 0.29 lb for jamb configurations. The MS51 has an IP65 rating, providing protection against dust and water.

Product Usage Instructions

Precautions

• Shut off all power going to header before attempting any wiring procedures.
• Observe battery polarity when inserting batteries.
• Maintain a clean and safe environment when working in public areas.
• Constantly be aware of pedestrian traffic around the door area.
• Always stop pedestrian traffic through the doorway when performing tests that may result in unexpected reactions by the door.
• Handle circuit boards with caution to prevent electrostatic discharge.
• Ensure all wiring is properly placed to avoid damage to equipment from moving door parts.
• Comply with applicable safety standards (e.g., ANSI A156.10 and 156.19) during installation.
• Do not attempt any internal repair; contact BEA, Inc. for authorized repairs or component replacements.
• Only trained and qualified personnel should install and set up the sensor.
• Ensure proper grounding of the door control system and the header cover profile.
• Test the proper operation of the installation before leaving the premises.
• Unauthorized repairs or repairs by unauthorized personnel may void the warranty.
• Use clean, lukewarm water and a soft, lint-free cloth to clean sensor windows and polycarbonate surfaces.

Assembly Diagram

Installation Site Preparation

To ensure system performance, it is recommended to use plastic electrical boxes when pairing with a transmitter. For new installations, follow these steps:

1. Install the appropriate mounting box or electrical box.

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TECHNICAL SPECIFICATIONS

TECHNOLOGY / PERFORMANCE

Technology| Active infrared
number of IR sensors| 2
Detection range| 8″ (20cm) max.
Battery life| 3 years (at 150 activations per day)
Product temperature range| -22 – 158 °F (-30 – 70 °C)
ELECTRICAL|
Output| 1 electronic relay (galvanic isolation – polarity free)
max. switching voltage| 42 VAC/VDC
max. switching current| 100 mA
Power supply| 3 VDC (2 AA batteries, each ~1.5 V max.)
Power consumption| < 0.5 mW (when idle)

< 12 mW (upon activation)

Wire gauge| 26-16 AWG
PHYSICAL|
Dimensions (overall)|
single gang| 2 ¾” (W) × 4 ½” (H) × 1 ¼” (T)
double gang| 4 ½” (W) × 4 ½” (H) × 1 ¼” (T)
round| 6″ (H/W) × 1 ¼” (T)
jamb| 1 ¾” (W) × 4 ½” (H) × 1 ¼” (T)
Material| Stainless steel 304 and PC
Weight| Single gang: 0.34 lb Double gang: 0.55 lb Round: 0.71 lb

Jamb: 0.29 lb

COMPLIANCE|
IP rating| IP65

Specifications are subject to change without prior notice.
All values measured in specific conditions, using lithium batteries..
For best performance, BEA recommends using lithium batteries.

PRECAUTIONS

CAUTION

• Shut off all power going to header before attempting any wiring procedures.

• Observe battery polarity when inserting batteries.

• Maintain a clean and safe environment when working in public areas.

• Constantly be aware of pedestrian traffic around the door area.

• Always stop pedestrian traffic through the doorway when performing tests that may result in unexpected reactions by the door.

• ESD (electrostatic discharge): Circuit boards are vulnerable to damage by electrostatic discharge.
  Before handling any board, ensure you dissipate your body’s ESD charge.

• Always check placement of all wiring before powering up to ensure that moving door parts will not catch any wires and cause damage to equipment.

• Ensure compliance with all applicable safety standards (i.e. ANSI A156.10 and 156.19) upon completion of installation.

• DO NOT attempt any internal repair of the components. All repairs and/or component replacements must be performed by BEA, Inc. Unauthorized disassembly or repair:

  • May jeopardize personal safety and may expose one to the risk of electrical shock.
  • May adversely affect the safe and reliable performance of the product resulting in a voided warranty.

ASSEMBLY DIAGRAM

PREPARE INSTALLATION SITE

To ensure system performance, BEA recommends using only plastic electrical boxes if pairing with a transmitter.

1. For new installation, install the appropriate mounting box or electrical box.
   For retrofitting an existing installation, remove the previous plate and disconnect wiring from the door control (if the previous installation was hardwired) or the transmitter (if the previous installation was wireless).

PREPARE MS51 ASSEMBLY

2. Insert 2 AA lithium batteries (provided).
   Observe battery polarity when inserting batteries.

3. Make necessary DIP switch adjustments.

WIRING

4. If retrofitting, cut off existing connectors (e.g. flag connectors) and strip the wires.
   If new installation, simply strip the wires.

5. Connect activation wires from the door control or transmitter to the terminal block (polarity free) on the MS51, and then tighten the screws on the terminal block. If used, place the transmitter back in the box.

COMPLETE THE INSTALLATION

6. Install MS51 assembly on box. Observe the orientation of the assembly as well as each individual component.

7. Secure with the provided screws (#6-32 flathead) and test functionality.

TROUBLESHOOTING

 | MS51 does not detect when waving in front of it| Dead batteries| Check battery life by placing your hand in front of the MS51. If there is no LED indication, replace batteries.
---|---|---|---
 | Detection range is too short| Check DIP 1 Position (see page 4) and ensure DIP 3 is in OFF position for indoor applications.
 | Incorrect battery orientation| Ensure batteries are installed properly with the right polarity (see label on product).
 | Incorrect MS51 assembly, causing water to leak into the assembly| Ensure all components of the assembly have been placed in the correct orientation (see page 6, step 6).

Ensure silicone is applied to the holes in mounting boxes to prevent water intrusion.

Door does not open when waving hand in front of the MS51| Incorrect receiver wiring/connection| Check wiring and relay connection.
 | Improper receiver pairing| Check receiver pairing with transmitter.
 | Incorrect transmitter or receiver frequency| If using wireless transmitters and receivers, ensure that the operating frequencies are the same.
 | Door safety system is holding the door closed| Clear the safety system to ensure that nothing is in detection.

| Transmitter interference| Ensure that a plastic junction box is used.
MS51 stays in detection

•  LED will remain solid

•  LED color will depend on the DIP 2 setting

| Window pollution| Check sensor window for any dirt and debris. Wipe sensor window with a non-abrasive, lint-free cloth if necessary.

| Cracked or damaged window| Replace the MS51.
LED flashes orange or red upon activation| Low battery indication| See page 4, step 3.

orange = replace soon

red = replace immediately

MS51 causes door activation without waving hand| Environmental conditions influencing sensor| Increase immunity settings (see page 4, step 3).
 | Remove moving or reflective objects in front of the MS51.
 | Ensure that door movement is not causing detection.
 | Detection range is too long. Switch to short range (see page 4, step 3).

BEA, INC. INSTALLATION/SERVICE COMPLIANCE EXPECTATIONS

BEA, Inc., the sensor manufacturer, cannot be held responsible for incorrect installations or incorrect adjustments of the sensor/device; therefore, BEA, Inc. does not guarantee any use of the sensor/device outside of its intended purpose. BEA, Inc. strongly recommends that installation and service technicians be AAADM-certifi ed for pedestrian doors, IDA-certifi ed for doors/gates, and factory-trained for the type of door/gate system.
Installers and service personnel are responsible for executing a risk assessment following each installation/service performed, ensuring that the sensor/device system performance is compliant with local, national, and international regulations, codes, and standards. Once installation or service work is complete, a safety inspection of the door/gate shall be performed per the door/gate manufacturer’s recommendations and/or per AAADM/ANSI/DASMA guidelines (where applicable) for best industry practices. Safety inspections must be performed during each service call – examples of these safety inspections can be found on an AAADM safety information label (e.g. ANSI/DASMA 102, ANSI/DASMA 107, UL294, UL325, and International Building Code).
Verify that all appropriate industry signage, warning labels, and placards are in place.

Tech Support & Customer Service: 1-800-523-2462
General Tech Questions: techservices-us@BEAsensors.com | Tech Docs: www.BEAsensors.com

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