PANASONIC LS-H21 (01) PDF Document

The PANASONIC LS-H21 is a Laser Sensor Head part of the LS-H series. It is a diffuse reflective type sensor designed for long sensing range spot reflective applications. It is intended for industrial use and must be used with an applicable amplifier, such as the LS-400 series.

No, you must never use the PANASONIC LS-H21 as a sensing device for personnel protection. For applications involving personnel protection, use products that meet specific safety standards such as OSHA, ANSI, or IEC applicable in your region.

The PANASONIC LS-H21 is classified as a Class 2 laser product according to IEC 60825-1-2014 and JIS C 6802-2014 standards. This classification indicates a visible beam of low power where the blink response of the eye typically affords protection.

Do not view the direct beam with the unprotected eye or with an optical instrument, as lasers are potentially hazardous. Using controls, adjustments, or procedures other than those specified in the instruction manual may result in hazardous radiation exposure.

The sensing range for the PANASONIC LS-H21 when used with an LS-400 series amplifier depends on the selected operation mode:

The PANASONIC LS-H21 features two indicators:

1. Operation indicator (Orange LED): Lights up when the amplifier output is ON.

2. Laser emission indicator (Green LED): Lights up while the laser is being emitted. This indicator is designed to be visible even when wearing laser protective glasses.

The operating ambient temperature range is -10 to +55 degrees Celsius, with no dew condensation or icing allowed. The storage temperature range is -20 to +70 degrees Celsius. The ambient humidity for both operation and storage should be between 35% and 85% RH.

The enclosure of the PANASONIC LS-H21 is made of PBT, and the lens cover is made of Acrylic.

The PANASONIC LS-H21 uses a red semiconductor laser (Class 2) with a maximum output of 3mW or less and a peak emission wavelength of 655nm.

The PANASONIC LS-H21 weighs approximately 30 grams.

The PANASONIC LS-H21 comes with one connector for the amplifier and one set of warning labels in Japanese, English, and Chinese.

The PANASONIC LS-H21 is designed to meet specifications only when used with the optional exclusive amplifier. Using a different amplifier may result in failed specifications, malfunction, or breakdown. Always ensure the PANASONIC LS-H21 is paired with its exclusive amplifier.

Always ensure that the power is off while wiring the PANASONIC LS-H21 to the amplifier. Do not run the wires together with high-voltage lines or power lines, and do not place them in the same raceway, as this can cause malfunction due to induction.

If noise-generating equipment (such as a switching regulator or inverter motor) is used in the vicinity, connect the frame ground (F.G.) terminal of that equipment to an actual ground. Similarly, if power is supplied from a commercial switching regulator, ensure its F.G. terminal is connected to an actual ground.

The initial transient time is 0.5 seconds. Do not use the sensor during this period immediately after the power supply is switched on.

Take care that the sensor head of the PANASONIC LS-H21 is not directly exposed to light from a rapid-starter lamp or a high-frequency lighting device, as this may negatively affect sensing performance.

No, the sensor head cable of the PANASONIC LS-H21 cannot be extended. Furthermore, ensure that stress is not applied to the sensor head cable joint.

No, the PANASONIC LS-H21 is suitable for indoor use only.

If water, oil, fingerprints, dust, or dirt are present on the emitting or receiving surfaces, wipe them with a clean, soft cloth or lens paper. Ensure the power is off while cleaning these windows. Do not allow materials that refract or block light to stick to these surfaces.

Take care that the PANASONIC LS-H21 does not come into contact with water, oil, grease, or organic solvents such as thinner. Additionally, do not use the sensor in vaporous, dusty, or corrosive gas atmospheres.

The tightening torque for the PANASONIC LS-H21 should be 0.5N·m or less. It is typically mounted using an optional sensor bracket and M3 screws (12mm length) with washers.

The PANASONIC LS-H21 incorporates a spot-size adjuster. To adjust the size of the spot diameter at your desired detecting distance, turn the spot-size adjuster clockwise or counterclockwise. Note that if the adjuster is over-turned, it may be damaged.

Process the core length to 7 to 8 mm in accordance with the “STRIP GAUGE” indicated on the side of the unit. Twist the core several times. If using shielded wires, twist them until the diameter is 1.2 mm or less.

Follow these steps to connect wires to the PANASONIC LS-H21:

Step 1: Prepare the core length (7-8mm) and twist.

Step 2: Use a flathead screwdriver (blade width 2mm or less) to push the white operating lever at the operating area until it is locked.

Step 3: Insert the wire into the innermost part of the wire inlet, ensuring the core end passes through the wire connection area.

Step 4: Place the screwdriver head underneath the white operating lever through the releasing slot and lift it. A snap sound indicates the lever has returned and the wire is fixed.

Step 5: Lightly pull the wire to ensure it is not loose.

The terminal connections for the PANASONIC LS-H21 are as follows:

To release a wire, use a flat-head screwdriver with a blade width of 2mm or less to push the white operating lever located at the wire inlet and then remove the wire.

If the label affixed to the PANASONIC LS-H21 is not visible after installation, you should affix the accessory warning label close to the product where it can be easily seen.

Yes, the PANASONIC LS-H21 is listed among the models that come with CE Marking.

The PANASONIC LS-H21 uses a 0.1mm2 shielded cable that is 2 meters long.

The PANASONIC LS-H21 is categorized as a Diffuse reflective type sensor, specifically a long sensing range spot reflective type.

You must configure the mode settings in the applicable amplifier LS-400 series to work correctly with the PANASONIC LS-H21.

Yes, the cable of the PANASONIC LS-H21 sensor head can be shortened to your desired length. However, as previously noted, it cannot be extended.

The operation modes on the amplifier determine the maximum detection distance for the PANASONIC LS-H21. The H-SP and FAST modes provide a range up to 300mm, the STD mode extends this to 500mm, and the U-LG mode offers the longest range at 1,000mm.

While the standard PANASONIC LS-H21 has a 2m cable, a model number with the suffix ‘-C5’ (e.g., LS-H21-C5) represents the version with a 5m cable length.

Yes, the PANASONIC LS-H21 uses a visible red laser beam. The Class 2 designation indicates it is visible and of low power.

The PANASONIC LS-H21 should be stored at a temperature between -20 and +70 degrees Celsius with an ambient humidity of 35% to 85% RH.

The sensing performance of the PANASONIC LS-H21 can be affected by direct exposure to fluorescent lamps from rapid-starter lamps or high-frequency lighting devices.

The green Laser Emission Indicator LED on the sensor head will light up whenever the laser is being emitted by the PANASONIC LS-H21.

After wiring, you should lightly pull the wires to ensure they are securely fixed in the connector and check that shielded wires do not contact each other.

The PANASONIC LS-H21 uses a Red Semiconductor Laser.

The peak emission wavelength for the PANASONIC LS-H21 is 655nm.

Yes, the PANASONIC LS-H21 is designed to be used with the LS-400 series of amplifiers.

When using shielded wires, the core must be twisted until the diameter is 1.2 mm or less.

The PANASONIC LS-H21 provides a spot reflective beam, and the diameter of this spot can be adjusted using the onboard spot-size adjuster.

A flathead screwdriver with a blade width of 2mm or less is required to operate the locking and releasing levers on the PANASONIC LS-H21 connector.

To avoid damage, ensure no stress is applied to the sensor head cable joint and do not attempt to extend the cable beyond its original length.

Across all sensing modes (H-SP, FAST, STD, and U-LG), the minimum sensing distance for the PANASONIC LS-H21 is 30mm.

The orange Operation Indicator LED on the PANASONIC LS-H21 sensor head will illuminate when the amplifier output is in the ON state.

No, you should take care that the PANASONIC LS-H21 does not come into contact with organic solvents such as thinner, as they may damage the device. Use only a clean, soft cloth or lens paper for cleaning.

When the PANASONIC LS-H21 is used in China, you must affix the Chinese warning label (provided as an accessory) over the existing label on the product, in accordance with GB 7247.1-2012.

No, the PANASONIC LS-H21 should not be used in vaporous, dusty, or corrosive gas atmospheres as these environments can lead to malfunction or damage.