
Keyence GT2-E3N NPN Sensor Expansion Board
The GT2-E3N is a Keyence expansion board for the GT2-100N amplifier. It adds three sensor head channels with NPN output, 0.1 µm resolution, and fast response.
The GT2-75P is a high-accuracy digital contact sensor amplifier from the Keyence GT2 series. This panel mount main unit serves as the core of a modular measurement system. Moreover, it accepts expansion boards for additional sensor channels. Therefore, it suits multi-point inspection and automated production lines.
The GT2-75P achieves a display resolution of 0.1 µm for precise measurement. Furthermore, its display range extends from -199.9999 to 199.9999. The amplifier offers flexible response times to match different applications. Specifically, users can choose hsp(3), 5, 10, 100, 500, or 1,000 ms. Besides, when paired with GT2-Pxxx heads, options include hsp(12), 20, 40, 400, 2,000, and 4,000 ms.
Control inputs cover timing, preset, reset, and bank functions. These work through no-voltage input signals for simple integration. The unit delivers HH, HI, GO, LO, and LL outputs. Additionally, the PNP open collector output handles 40 V and 50 mA maximum. Meanwhile, residual voltage stays at 1 V or less for reliable switching.
The GT2-75P runs on 10 to 30 VDC with 10 % ripple included. This Class 2 supply suits common industrial power sources. Power consumption stays at 2,200 mW or less, drawing 73.3 mA or less at 30 V. First, this low draw reduces heat inside control cabinets.
The GT2-75P performs well in demanding factory conditions. For instance, the ambient temperature range spans -10 to +50 °C without freezing. Meanwhile, relative humidity should stay between 35 and 85 % RH without condensation. The unit weighs approximately 140 g, including the panel bracket and cable.
Installing the GT2-75P begins with cutting a standard panel opening. First, power off the supply and slide the unit into the panel cutout. Next, attach the mounting bracket and tighten the screws evenly. Furthermore, connect the power cable to a 10 to 30 VDC Class 2 source.
The I/O wiring uses the supplied cable with clear color coding. For expansion, insert optional GT2 boards into the main unit slots. In addition, optional communication units add fieldbus connectivity when needed. Finally, verify all connections before powering the system on.
GT2-75P main unit × 1
Panel mounting bracket × 1
Protective front cover × 1
Power cable × 1
Q: What is the difference between the GT2-75P and GT2-75N?
A: The GT2-75P provides PNP output. Meanwhile, the GT2-75N offers NPN output.
Q: Can the GT2-75P work without expansion boards?
A: Yes. The main unit operates independently and accepts expansion boards only when needed.
Q: How many expansion boards can the GT2-75P accept?
A: The main unit accepts up to three expansion boards for additional sensor channels.
Q: Does the GT2-75P support fieldbus communication?
A: No built-in port exists. However, optional GT2 communication units add this function.
Q: How do I ship this product?
A: We ship worldwide via Fedex, UPS, or DHL with tracking available.
| Brand Name | |
| Model No. | GT2-75P |
| Product Type | Sensor Amplifier Unit |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |

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