The thread 8mm inductive sensor consists of two parts. The front end is composed of an iron core wrapped with transmitting and receiving coils, forming the detection part; The backend is the circuit part, which is encapsulated in a plastic or metal casing as a whole. During the operation, the electromagnetic core generates an alternating magnetic field, which creates eddy current effects on the surface of nearby metal objects, thereby weakening the LC oscillation circuit. Analyze the weak LC oscillation circuit changes of the electromagnetic core receiving coil in the amplification circuit section and provide the corresponding output.
Characteristics
① No active contacts, high reliability, long lifespan;
② High resolution;
③ High sensitivity;
④ High linearity and good repeatability;
⑤ Wide measurement range (low resolution when the measurement range is large);
⑧ Not suitable for high-frequency dynamic measurement.




Advantages
1. Bright Indicator Light: The Garantta 8mm inductive sensor feature a bright indicator light, making it easy to check the product's operating status on-site.
2. Stable and Reliable: The Garantta M8 series inductive proximity sensors utilize hot-melt sealing technology to ensure impact and vibration resistance.
3. High Accuracy: The Garantta M8 series inductive proximity sensors offer a repeatability of <0.2% Sn, effectively improving equipment positioning accuracy.
4. Miniaturization: The Garantta M8 series inductive sensors have a mounting diameter of only 8mm, making them suitable for installation in confined spaces and easily embedded in equipment.
5. Protection Rating: The Garantta 8mm inductive sensor are IP67 rated, effectively protecting against dust and water.
Function
1. 8mm inductive sensor use magnetic field-induced currents to detect nearby metal objects. If the target is close to the magnetic field, eddy currents will be generated. These currents dissipate power due to resistance, resulting in energy loss in the field and a decrease in signal amplitude.
2. Inductive proximity sensors detect magnetic losses caused by eddy currents generated by external magnetic fields on conductive surfaces. Generate an AC magnetic field on the detection coil and detect impedance changes caused by eddy currents generated on metal objects.
3. Inductive proximity sensors can only detect metal targets. They are unable to detect non-metallic targets such as plastic, wood, paper, and ceramics. Unlike photoelectric sensors, this allows inductive proximity sensors to detect metal objects through opaque plastic.
4. Inductive sensors use magnetic fields to detect objects. Capacitive sensors use electric fields. Capacitive sensors will respond to objects acting as dielectric materials and conductive objects. This makes metal and non-metal objects suitable targets.
FAQ
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Standard unshielded cylindrical type inductive sensor specification
| Model | Detection distance | Set distance | Response difference distance |
NPN/PNP | Action mode | Standard test substance | Voltage | Current consumption | Load current | Residual voltage | Switch frequency |
Protection circuit | Ambient temperature | Protection level |
| GPL-M08KU02-NO-2m | 2mm | 0~1.6mm | Within 10% detection distance | NPN | Normally open | Mild steel (ST37) | Below 10-30VDC | Below 8mA | Below 100mA | Below 1V | 800Hz | Output polarity reverse protection, power supply reverse polarity protection, surge absorption, short circuit protection | -25~70℃ | IP67 |
| GPL-M08KU02-NC-2m | NPN | Normally closed | ||||||||||||
| GPL-M08KU02-PO-2m | PNP | Normally open | ||||||||||||
| GPL-M08KU02-PC-2m | PNP | Normally closed | ||||||||||||
| GPL-M08LU02-NO-2m | NPN | Normally open | ||||||||||||
| GPL-M08LU02-NC-2m | NPN | Normally closed | ||||||||||||
| GPL-M08LU02-PO-2m | PNP | Normally open | ||||||||||||
| GPL-M08LU02-PC-2m | PNP | Normally closed |
Standard shielded cylindrical inductive proximity sensor specification
| Model | Detection distance | Set distance | Response difference distance |
NPN/PNP | Action mode | Standard test substance | Voltage | Current consumption | Load current | Residual voltage | Switch frequency |
Protection circuit | Ambient temperature | Protection level |
| GPL-M08KS01-NO-2m | 1.5mm | 0-1.2mm | Within 10% detection distance | NPN | Normally open | Mild steel (ST37) | Below 10-30VDC | Below 8mA | Below 100mA | Below 1V | 800Hz | Output polarity reverse protection, power supply reverse polarity protection, surge absorption, short circuit protection | -25~70℃ | IP67 |
| GPL-M08KS01-NC-2m | Normally closed | |||||||||||||
| GPL-M08KS01-PO-2m | PNP | Normally open | ||||||||||||
| GPL-M08KS01-PC-2m | Normally closed | |||||||||||||
| GPL-M08LS01-NO-2m | NPN | Normally open | ||||||||||||
| GPL-M08LS01-NC-2m | Normally closed | |||||||||||||
| GPL-M08LS01-PO-2m | PNP | Normally open | ||||||||||||
| GPL-M08LS01-PC-2m | Normally closed |
Double distance unshielded circular inductor proximity sensor specification
| Model | Detection distance | Set distance | Response difference distance |
NPN/PNP | Action mode | Standard test substance | Voltage | Current consumption | Load current | Residual voltage | Switch frequency |
Protection circuit | Ambient temperature | Protection level |
| GPL-M08KU04-NO-2m | 4mm | 0~3.2mm | Within 10% detection distance | NPN | Normally open | Mild steel (ST37) | Below 10-30VDC | Below 8mA | Below 100mA | Below 1V | 1000Hz | Output polarity reverse protection, power supply reverse polarity protection, surge absorption, short circuit protection | -25~70℃ | IP67 |
| GPL-M08KU04-NC-2m | NPN | Normally closed | ||||||||||||
| GPL-M08KU04-PO-2m | PNP | Normally open | ||||||||||||
| GPL-M08KU04-PC-2m | PNP | Normally closed | ||||||||||||
| GPL-M08LU04-NO-2m | NPN | Normally open | ||||||||||||
| GPL-M08LU04-NC-2m | NPN | Normally closed | ||||||||||||
| GPL-M08LU04-PO-2m | PNP | Normally open | ||||||||||||
| GPL-M08LU04-PC-2m | PNP | Normally closed |
Double distance shielded circular inductor proximity sensor specification
| Model | Detection distance | Set distance | Response difference distance |
NPN/PNP | Action mode | Standard test substance | Voltage | Current consumption | Load current | Residual voltage | Switch frequency |
Protection circuit | Ambient temperature | Protection level |
| GPL-M08KS02-NO-2m | 2mm | 0-1.6mm | Within 10% detection distance | NPN | Normally open | Mild steel (ST37) | Below 10-30VDC | Below 8mA | Below 100mA | Below 1V | 1500Hz | Output polarity reverse protection, power supply reverse polarity protection, surge absorption, short circuit protection | -25~70℃ | IP67 |
| GPL-M08KS02-NC-2m | Normally closed | |||||||||||||
| GPL-M08KS02-PO-2m | PNP | Normally open | ||||||||||||
| GPL-M08KS02-PC-2m | Normally closed | |||||||||||||
| GPL-M08LS02-NO-2m | NPN | Normally open | ||||||||||||
| GPL-M08LS02-NC-2m | Normally closed | |||||||||||||
| GPL-M08LS02-PO-2m | PNP | Normally open | ||||||||||||
| GPL-M08LS02-PC-2m | Normally closed |













