Honeywell PK 81181 LSX Series Explosion-proof Limit Switches Instruction Manual
- June 3, 2024
- Honeywell
Table of Contents
Honeywell PK 81181 LSX Series Explosion-proof Limit Switches
WARNING
PERSONAL INJURY
DO NOT USE these products as safety or emergency stop devices, or in any
other application where failure of the product could result in personal
injury.
Failure to comply with these instructions could result in death or serious
injury.
OPENING PRODUCTS HAZARD
DO NOT OPEN these products when energized or in a flammable gas atmosphere. Failure to comply with these instructions could result in death or serious injury.
IMPROPER CONDUIT THREAD USE
DO NOT USE any other conduit thread than the one identified on the
product. Verify that the mating threaded fitting is identical with the conduit
thread shown on the product nameplate.
Failure to comply with these instructions could result in death or serious
injury.
MICRO SWITCH™ explosion-proof switches are designed specifically for use
in hazardous area applications. In addition to meeting explosion-proof
requirements, the MICRO SWITCH™ LSX meets additional enclosure sealing
classifications. This makes the LSX ideal for outdoor use or in adverse
environments where a combination of explosion proof plus sealing requirements
are needed.
The MICRO SWITCH™ LSX enclosure is sealed for protection against corrosion,
water, dust and oil, as defined in NEMA 1, 3, 4, 6, and 13. These enclosures
also meet NEMA standards for hazardous type Div. 1 & 2, Class I, Groups B, C,
& D; Div. 1 & 2, Class II, Groups E, F, & G.
MOUNTING INSTRUCTIONS
The LSX may be mounted using two 1/4-inch or M6 screws for clearance fit, or two 5/16-18 UNC bolts for threaded fit. Torque threaded fit bolts to 12 in-lb to16 in-lb [1.4 Nm to 1.8 Nm].
MICRO SWITCH™ LSX Terminology
MICRO SWITCH™ LSX General Dimensions
MICRO SWITCH™ LSX Series
MOUNTING INSTRUCTIONS: HDLS Mounting
If it is desired to mount on existing HDLS mounting hole locations, the
adapter plate (Catalog Listing: LSXZ4022) must be used. The adapter plate is
attached to the HDLS location.
Position the plate so the screw heads fit into the plate recesses provided.
Now simply attach the MICRO SWITCH™ LSX to the adapter plate using two
3/16-inch screws and the smaller mounting holes. The mounting plate fits into
the recess in the back of the LSX. It is good practice not to mount the switch
upside down or at the low point of long conduit runs.
MOUNTING INSTRUCTIONS:
NEW INSTALLATIONS
Note the mounting dimensional drawing (Figure 3) for hole locations.
MICRO SWITCH LSX Mounting Hole Pattern
WIRING INSTRUCTIONS
The circular cover on the front of the switch is unthreaded to expose the
switching element for wiring or replacement. To aid in cover removal, a
screwdriver or bar may be used on the wrenching lugs.
Use up to size #12 AWG solid or standard wire to connect to the pressure type
connector terminals. Stripped wire ends or any spade and ring connector that
will fit LS terminals may be used. Spades may be up to 0.312 inch wide, rings
up to 0.312 inch diameter. With spade or ring-type connections, pre-insulated
connectors or heat-shrinkable tubing should be used to provide insulation
between terminals. Circuit diagram is shown on nameplate.
It will be easier to wire the double pole units by connecting lead wires to
the terminals nearest the conduit opening first.
A grounding screw is located on the right side. The internal grounding
terminal must be used for the equipment grounding connection. After wiring,
replace cap so that the o-ring gasket is fully seated.
ADJUSTING INSTRUCTIONS: ACTUATOR HEAD
To give flexibility in application, the actuator head may be positioned in any of four directions. Loosen the four captive head screws, place the head in the desired position, and then securely tighten the four screws. The screw tightening torque is 12 in-lb to 16 in-lb [1.4 Nm to 1.8 Nm].
MICRO SWITCH™ LSX Side Rotary Head
REVERSING THE ROLLER LEVER
Except for the offset roller levers, the roller arm may be reversed to face
the roller to the inside or outside of the arm.
MICRO SWITCH™ LSX Series
POSITIONING LEVER
The lever on rotary-actuated units is adjustable to any position through 360° around the shaft. Loosen the cap screw with a 9/64-inch hexagon key wrench, move the lever to desired position and securely tighten screw (Figure 4). A 9/64-inch hex key wrench is provided in the adjusting tool set LSZ4005.
ADJUSTABLE LENGTH LEVERS
To adjust the length of the adjustable length levers, a 9/64-inch hexagon key wrench is required. A 9/64-inch hex key wrench is provided in the adjusting tool set LSZ4005.
TOP ROLLER PLUNGER
Position the top roller plunger in the desired roller plane, by adjusting the head as explained under actuator head.
SIDE ROLLER PLUNGER
Grasp the plunger with a pair of pliers and rotate to the desired horizontal or vertical position (Figure 5).
MICRO SWITCH™ LSX Side Roller Plunger
MICRO SWITCH™ LSX Side Rotary Actuator head Terminology
CHANGING DIRECTION OF ACTUATION
SIDE ROTARY
Catalog listings with the first four letters LSXA, LSXH, LSXL, LSXP, and LSXR may be adjusted to operate clockwise, counter-clockwise, or both. Catalog listings LSXM (center neutral) and LSXN (maintained) operate in both directions and cannot be changed. To change, follow these steps:
- Loosen the head screws and remove the head from the switch housing.
- On the bottom of the head, insert a screwdriver in the slot provided and lift open the hinged cover.
- Refer to Figure 8, slide the cam all the way back and away from the exterior portion of the actuator shaft, so cam is free to rotate on the shaft.
- Using a screwdriver or similar tool, rotate the cam to desired actuating position. See Figures 7, 8, & 9.
- Slide the cam all the way forward to its original position, and close the hinged cover.
- Replace the operating head on the switch housing and securely tighten the head screws. The screw tightening torque is 12 in-lb to 16 in-lb [1.4 Nm to 1.8 Nm].
MICRO SWITCH™ LSX Cam Slide
MICRO SWITCH™ LSX Cam Lobes for CW and CCW
MICRO SWITCH™ LSX Cam Lobe for CCW
MICRO SWITCH™ LSX Cam Lobe for CW
TOP ROTARY
Follow these steps to change the operating direction of the LSXB type switch:
- Loosen the head screws and remove head from the switch housing.
- From the bottom of the head, grasp the end of the pin plunger (Figure 11) and remove the pin. It may be necessary to rotate the actuating shaft to expose the end of the pin plunger.
- Using Figure 11 as a position reference orientate the pin plunger according to Figure 12, select the correct pin plunger position for the desired direction of actuation.
- Insert the pin plunger in the position providing the desired direction of actuation.
- Replace the operating head on the switch housing and securely tighten the head screws.
MICRO SWITCH™ LSX Top Rotary Actuator
MICRO SWITCH™ LSX Top Rotary Actuation Diagram
Proper Application of Limit Switches
REPLACEMENT PARTS
Following is a list of replacement parts for the heavy duty LS switches.
Should your specific switch catalog listing not appear in this list, contact
the nearest local Honeywell Authorized Distributor or a Honeywell Branch
Office.
For ease of making switch adjustments which may be necessary on various switch
listings, it is recommended to order the Lever and Switch Adjusting Tool Set
(Catalog Listing: LSZ4005). This set consists of (1) special 3/32- inch open
end wrench, and (1) 9/64-inch hexagon key wrench.
REPLACEMENT LEVERS
To order replacement levers, order the same part number as that which is metal stamped on either the lever or lever hub. Use only non-sparking levers to retain the explosion proof qualities.
ADAPTER MOUNTING PLATE
Catalog Listing: LSXZ4022
NON-PLUG IN
*Catalog listing on switch nameplate| Operating head only|
Contact block (basic switch only)**
---|---|---
LSXA3K| LSZ1A| LSXZ3K
LSXA4L| LSZ1A| LSXZ3L
LSXB3K| LSZ1B| LSXZ3K
LSXB4L| LSZ1B| LSXZ3L
LSXC3K| LSXZ1C| LSXZ3K
LSXC4L| LSXZ1C| LSXZ3L
LSXD3K| LSXZ1D| LSXZ3K
LSXD4L| LSXZ1D| LSXZ3L
LSXE3K| LSXZ1E| LSXZ3K
LSXE4L| LSXZ1E| LSXZ3L
LSXF3K| LSXZ1F| LSXZ3K
LSXF4L| LSXZ1F| LSXZ3L
LSXH3K| LSZ1H| LSXZ3K
LSXH4L| LSZ1H| LSXZ3L
LSXJ3K-7A| LSZ1JGA| LSXZ3K
LSXJ4L-7A| LSZ1JGA| LSXZ3L
LSXK3K-8A| LSXZ1KHA| LSXZ3K
LSXK4L-8A| LSXZ1KHA| LSXZ3L
LSXL4M| LSZ1L| LSXZ3M
LSXM4N| LSZ1M| LSXZ3M
LSXN3K| LSZ1N| LSXZ3K
LSXN4L| LSZ1N| LSXZ3L
LSXP3K| LSZ1P| LSXZ3K
LSXP4L| LSZ1P| LSXZ3L
LSXR3K| LSZ1R| LSXZ3K
LSXR4L| LSZ1R| LSXZ3L
- Above, only a portion of Catalog listing is shown to determine the replacement part. Listings shown with -7A, or -8A are complete Iistings.
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as being free of defective
materials and faulty workmanship. Honeywell’s standard product warranty
applies unless agreed to otherwise by Honeywell in writing; please refer to
your order acknowledgement or consult your local sales office for specific
warranty details. If warranted goods are returned to Honeywell during the
period of coverage, Honeywell will repair or replace, at its option, without
charge those items it finds defective. The foregoing is buyer’s sole remedy
and is in lieu of all other warranties, expressed or implied, including those
of merchantability and fitness for a particular purpose. In no event shall
Honeywell be liable for consequential, special, or indirect damages.
While we provide application assistance personally, through our literature and
the Honeywell web site, it is up to the customer to determine the suitability
of the product in the application.
Specifications may change without notice. The information we supply is
believed to be accurate and reliable as of this printing. However, we assume
no responsibility for its use.
Honeywell serves its customers through a worldwide network of sales offices,
representatives and distributors. For application assistance, current
specifications, pricing or name of the nearest Authorized Distributor, contact
your local sales office or:
- E- mail: info.sc@honeywell.com
- Internet: www.honeywell.com/sensing
- Phone and Fax: USA/Canada +1-800-537-6945 International +1-815-235-6847 + 1-815-235-6545 Fax
Sensing and Control Honeywell
1985 Douglas Drive North Golden Valley, MN 55422
www.honeywell.com
References
- Products - Advanced Sensing Technologies | Honeywell
- Honeywell - The Future Is What We Make It
- Products - Advanced Sensing Technologies | Honeywell
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