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  4. FA sensor Special purpose sensor Safety liquid leak sensor [Control category 4 PLe SIL3] SQ4 (Panasonic Industry Co., Ltd.)
FA sensor Special purpose sensor Safety liquid leak sensor [Control category 4 PLe SIL3] SQ4-SQ4-A21-P
FA sensor Special purpose sensor Safety liquid leak sensor [Control category 4 PLe SIL3] SQ4-Panasonic Industry Co., Ltd.

FA sensor Special purpose sensor Safety liquid leak sensor [Control category 4 PLe SIL3] SQ4
Panasonic Industry Co., Ltd.

About This Product

basic information

■Two-stage detection method that improves productivity and reliable safety performance that complies with international standards.

- Obtained UL, CE, CSA, TUV, Korean S Mark, UKCA. (CE: Machinery Directive, EMC Directive UKCA: Machinery Regulation, EMC Regulation UL, CSA: Certified by TÜV SÜD America Inc.) ・SEMI-S2 ・PLe SIL3 ・Control category: Supports up to control category 4 Features

■Initial leakage (alarm) and abnormal leakage (emergency stop), two-stage detection for each condition

Two detection sections are installed on the back of the sensor, one at the tip and the other at the center. When a leak occurs in front of the sensor, the detection part at the tip detects a small initial leak, and when the leak increases and reaches the center, the sensor detects it as an abnormal leak. Previously, two-stage detection of liquid leakage required two sensors installed at different heights, but now it can be detected with a single sensor.

■Human error (improper installation) is also detected

The SQ4 series not only detects liquid leaks, but also detects human errors such as forgetting to install a sensor, and abnormal sensor conditions. If the sensor itself or the mounting hardware comes off, if the sensor is improperly installed, or if the cable is disconnected, no light will be received, and the same output as "liquid leakage" will be obtained.

■Can be used as a single sensor

You can add the benefits of two-stage detection even when adding to or replacing your current equipment.

■Obtained safety certification. Achieving the highest level of safety performance

The SQ4 system is configured to meet international safety standards. The combination of sensor [SQ4-A] and controller [SQ4-C11] has achieved control category 4, PLe, and SIL3 in ISO13849-1, which has been updated to add probability theory to the conventional risk assessment system (control category) to evaluate the functional safety of programmable electronic control systems. The sensor alone has achieved control category 1, PLc, and SIL1.

■Two CPUs provide high safety control

Two independent CPUs installed in the controller mutually check the operating status. Safety is ensured by duplicating the signal processing circuit and output circuit. Furthermore, in order to prove safe operation, we pursue even higher safety using FMEA*. *FMEA: A systematic analysis method for potential failures and defects with the aim of preventing failures and defects.

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    FA sensor Special purpose sensor Safety liquid leak sensor [Control category 4 PLe SIL3] SQ4

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1 Models of FA sensor Special purpose sensor Safety liquid leak sensor [Control category 4 PLe SIL3] SQ4

Image Part Number Price (excluding tax) Cable Operating ambient temperature Ambient humidity Protective structure Light emitting element Material Detected object Detection output (liquid leak detection) NPN output type Detection output (liquid leak detection) PNP output type Detection output (liquid leak detection) Output operation Detection output (liquid leak detection) Response time Detection output (liquid leak detection) Short circuit protection Current consumption Mass Power supply voltage
FA sensor Special purpose sensor Safety liquid leak sensor [Control category 4 PLe SIL3] SQ4-Part Number-SQ4-A21-P

SQ4-A21-P

Available upon quote

0.18mm2 4-core PVC cabtyre cable with 2m

-10~+55℃ (However, no condensation or freezing), Storage: -10~+55℃

35~85%RH, during storage: 35~85%RH

IP65 / IP67 (IEC)

Infrared LED (modulated)

Body case: Polypropylene

Water (standard liquid)

NPN transistor open collector
・Maximum inflow current: 50mA
・Applied voltage: Same as power supply voltage (between detection output and 0V)
・Residual voltage: 2V or less (at inflow current 50mA)

PNP transistor open collector
・Maximum outflow current: 50mA
・Applied voltage: Same as power supply voltage (between detection output and +V)
・Residual voltage: 2.5V or less (at outflow current 50mA)

During normal operation and initial detection: ON, when leakage is detected and when installation is abnormal: OFF

10ms or less

Equipment

30mA or less

Body weight: Approx. 45g, Packing weight: Approx. 110g

12~24V DC±10% Ripple P-P 10% or less

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Panasonic Industry Co., Ltd.

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