Panasonic LS-401P-C2 Digital Laser Sensor Amplifier

Technical Overview

12-24VDC PNP output, 100mA max source, 80µs response time (H-SP). Integrated dual 4-digit LED display, 2m 5-core cable, IP40 rating for robust industrial use.

Key Features

PNP open-collector transistor two outputs
Dual 4-digit LED display for incident light intensity and threshold value
Fast response time: 80 µs (H-SP mode)
Supports multiple sensing modes: Hysteresis, Window comparator, 2 independent output, Differential sensing
Easy adjustment with jog switch and MODE key
Incorporated fine sensitivity adjustment function
Built-in variable ON-delay / OFF-delay / One shot timer
Automatic interference prevention function (up to 4 sensors)
External input for laser emission halt and teaching functions
2-meter, 5-core cabtyre cable included
IP40 protection rating

Technical Specification Matrix

Parameter	Value
Output Type	PNP open-collector transistor two outputs
Connection Method	2 m 6.562 ft cabtyre cable (5-core) included
Cable Outer Diameter	Ø3.7 mm Ø0.146 in
Supply Voltage	12 to 24 V DC ±10% Ripple P-P 10% or less
Power Consumption (Normal)	950 mW or less (40 mA or less at 24 V supply)
Power Consumption (ECO mode)	780 mW or less (33 mA or less at 24 V supply)
Maximum Source Current	100 mA
Applied Output Voltage	30 V DC or less (between output and +V)
Output Residual Voltage	1.5 V or less (at 100 mA source current)
Response Time (H-SP)	80 µs or less
Response Time (FAST)	150 µs or less
Response Time (STD)	500 µs or less
Response Time (U-LG)	4 ms or less
External Input (PNP High)	+4 V to +V (sink current 3 mA or less)
External Input (PNP Low)	0 to +0.6 V or open
External Input Impedance	10 kΩ approx.
Operation Indicator	Orange LED (Output 1 and 2 ON)
Laser Emission Indicator	Green LED (Laser emission)
Digital Display	4 digit (green) + 4 digit (red) LED display
Ambient Temperature (Operating)	-10 to +55 °C (+14 to +131 °F)
Ambient Temperature (Storage)	-20 to +70 °C (-4 to +158 °F)
Ambient Humidity (Operating/Storage)	35 to 85% RH
Voltage Withstandability	1,000 V AC for one min. (between all supply terminals and enclosure)
Insulation Resistance	20 MΩ or more (with 250 V DC megger)
Vibration Resistance	10 to 150 Hz frequency, 0.75 mm double amplitude or 49 m/s² (X, Y, Z for 2 hours each)
Shock Resistance	98 m/s² acceleration (10 G approx.) in X, Y, Z directions three times each
Enclosure Material	Heat-resistant ABS
Transparent Cover Material	Polycarbonate
Cable Type	0.15 mm² 5-core cabtyre cable
Protection	IP40 (IEC)
Cable Length	2 m 6.562 ft
Cable Extension	Up to total 100 m with 0.3 mm² or more cable
Physical Weight (kg)	0.07
Dimensions L x W x H (cm)	5.87 x 1.2 x 3.09

Industrial Applications

1. Precision Object Detection on Fast-Moving Conveyors

In high-speed packaging lines, the LS-401P-C2 amplifier, when paired with a compatible LS-400 series sensor head, offers a rapid 80 µs (H-SP mode) response time, ensuring accurate detection of small or irregularly shaped objects. The PNP open-collector output can directly interface with PLCs for immediate process control.

Problem Solved

Prevents production bottlenecks and errors caused by missed or inaccurate detection of items on rapid conveyor systems, improving throughput and quality control.

High-speed detectionpackaging linePNP outputrapid response timeobject presenceindustrial automation

2. Material Level Monitoring in Opaque Containers

Utilizing its integrated dual 4-digit digital display and various sensing modes, the LS-401P-C2 can be configured for window comparator mode with an LS-400 series sensor head. This allows for precise monitoring of material levels within opaque tanks or hoppers, detecting when levels fall between or exceed set thresholds. The 12-24 VDC operation and robust IP40 enclosure ensure reliability in industrial environments.

Problem Solved

Automates inventory management and prevents material shortages or overflows in manufacturing processes, reducing manual checks and associated risks.

Level sensingwindow comparatormaterial handlinginventory controlindustrial tanksprocess automation

3. Automated Assembly Line Error Proofing

The LS-401P-C2 amplifier, with its fine sensitivity adjustment and ability to detect minute variations (M.G.S. function), is ideal for quality control in automated assembly. When paired with a spot reflective sensor head like the LS-H21, it can verify the correct placement of small electronic components or fasteners by precisely detecting their presence or absence from a remote location.

Problem Solved

Eliminates assembly errors and reduces rework costs by providing real-time verification of component presence and alignment, enhancing product quality in electronics manufacturing.

Quality controlerror proofingcomponent verificationassembly automationfine sensitivityelectronics manufacturing