Mechanical Installation

NOTE: LCN recommends the use of a BodyMount P/N 761222-79 for most Presence Sensor applications. The BodyMount is a 3” standoff that allows the Presence Sensor to be slightly distanced from the face of the closed door. This helps to prevent ghosting caused by slight door movement while closed, and also prevents ghosting when Door Mounted Safety Sensors are used (as the Door Mounted Safety Sensor extrusions at the top of the door are extremely close to the sensor while the door is closed).

1.The extrusion has pre-drilled mounting holes at each end as shown below in pictures 5 & 6.

Pre Drilled

Mounting Holes

Approx. 9 ¾” Apart

2.Hold the Presence Sensor up to the pre-determined location, and attach using the 2 self-drilling screws that are included with the package, as shown in picture 7 below. It may be necessary to pre-drill a pilot hole (picture 8) in the header for ease of screw installation. Ensure that Presence Sensor is mounted securely at each end.

3.If Presence Sensor is mounted directly to door header, and cabling is to pass directly into header, drill a ¼” hole next to the Presence Sensor’s left side end cap to allow wire passage into header as shown below. The wire passage hole should be in a location that aligns with the cut out in the end cap as shown below.

ELECTRICAL INSTALLATION AND CABLING

Once the Presence Sensor is securely attached to header, cabling & wiring may be completed.

1.Install the 10-pin connector as shown below in picture 10. If wiring the Presence Sensor to a LCN module, refer to the schematic for the respective module.

75.5255.02 XXXXXXXX 7940-8770 LCN

1 PWR
2 PWR
3 COM
4 NO
5 NC
6	IN -
7	IN +	10 PIN

10 PIN

Position	Connection 7-Pin	Wire Color (10-pin cable)
1	12 to 24 V AC / DC	Red
	+/- 10%
2	24 to 24 V AC / DC	Black
	+/- 10%
3	Common	White
4	Normally Open	Green
5	Normally Closed
6	Data -	Brown
7	Data +	Blue

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7940-8770 specifications

The Ingersoll-Rand 7940-8770 is a high-performance pneumatic tool that stands out in the industry due to its durability and versatility. It has been engineered for demanding applications in various work environments, including automotive, manufacturing, and construction. This tool is designed to provide efficient, powerful performance while ensuring user comfort and safety.

One of the key features of the 7940-8770 is its lightweight design. Weighted at only a fraction of similar tools in the market, it minimizes fatigue during extended use. Users can enjoy prolonged operation without feeling burdened, which significantly enhances productivity. Additionally, the ergonomic handle allows for a secure grip, ensuring greater control and precision during operations.

The 7940-8770 incorporates advanced technologies, notably its patented air control system. This innovative feature enables users to adjust the air pressure depending on the application, ensuring optimal torque output. With a maximum torque of 600 ft-lbs, the tool is capable of handling heavy-duty tasks with ease. Furthermore, the impact mechanism has been finely tuned to deliver outstanding power while reducing vibration, which also contributes to the tool's user-friendly profile.

Another prominent characteristic of the Ingersoll-Rand 7940-8770 is its robust construction. It is built with high-quality materials that withstand the rigors of daily use, extending its lifespan. The tool’s components are designed to resist wear and tear, even in the most demanding conditions. As a result, maintenance is minimal, making it a cost-effective solution for professionals.

In terms of safety, the 7940-8770 features an integrated exhaust system that directs air away from the user, significantly improving the working environment. This feature is crucial in preventing inhalation of debris, promoting a safer workspace.

In conclusion, the Ingersoll-Rand 7940-8770 is a dependable pneumatic tool that merges power, durability, and user comfort. With its advanced air control system, robust design, and safety features, it is ideally suited for both professional tradespeople and DIY enthusiasts. Whether tackling automotive tasks or industrial applications, the 7940-8770 proves to be a valuable asset in any toolkit. Its competitive edge lies in its ability to deliver consistent performance while ensuring user satisfaction through thoughtful engineering and design.