Keyence AP-33A Pressure Sensor Main Unit
Product Introduction
The Keyence AP-33A is a positive-pressure sensor main unit for industrial air and gas monitoring. It measures gauge pressure across a rated range of 0 to 1.000 MPa. Because the unit accepts air and non-corrosive gases, it suits pneumatic lines, compressors, and leak test benches. Furthermore, the AP-33A displays readings on a 3 1/2-digit, two-colour, 7-segment LED. The character height of 11 mm keeps values readable from a distance. Meanwhile, the NPN open collector output drives alarms, valves, or PLC inputs directly. In addition, a 1 to 5 V analogue output supports continuous pressure logging. As a result, the AP-33A covers both switching and measurement duties in one device.
Technical Specifications
The AP-33A offers precise resolution and flexible output options. First, the display resolution is 0.01 bar, 0.2 Psi, 0.001 MPa, or 0.01 kgf/cm². Second, the detectable pressure range spans -15 to +110% of full scale. Moreover, hysteresis is variable in hysteresis mode and fixed at 0.5% of F.S. in standard mode. The response time includes 2.5, 5, 100, and 500 ms selections for chatter prevention. In addition, the control output provides two outputs with N.O./N.C. selection. Each output handles 100 mA maximum at 40 V maximum. Residual voltage stays at 1 V or less, which ensures clean signal transfer.
Electrical Parameters
The AP-33A runs on 12 to 24 VDC with ±10% tolerance. Ripple must remain at 10% P-P or less. Current consumption stays at 50 mA or less at 24 V. At 12 V, the draw rises to 90 mA or less. Additionally, the analogue output supplies 1 to 5 V into a load of 47 kΩ minimum. These ratings match common PLC and data-logger inputs. Therefore, integration into existing control panels is simple.
Mechanical and Environmental Parameters
The AP-33A resists pressure up to 1.5 MPa without damage. Ambient temperature ranges from 0 to +50 °C with no freezing. Relative humidity tolerance spans 35 to 85% RH without condensation. Vibration resistance covers 10 to 55 Hz at 1.5 mm double amplitude for two hours per axis. The front housing uses polyamide, and the rear housing uses polysulfone. Meanwhile, the pressure port is die-cast zinc, and the cable is oil-proof cabtyre type. The unit weighs approximately 120 g.
Installation Guide
Installation of the AP-33A requires attention to port sealing and wiring. First, mount the unit on a panel or bracket using the rear housing. Next, connect the pressure port to the air line with proper sealing tape. After that, wire the 12 to 24 VDC supply and the NPN outputs. Additionally, connect the analogue output if continuous monitoring is needed. Then, set the response time to match the system dynamics. However, keep the unit within the 0 to +50 °C ambient limit. Finally, verify readings against a known reference gauge.
Packaging List
FAQ
Q1: What pressure range does the AP-33A cover?
A: The AP-33A measures gauge pressure from 0 to 1.000 MPa. It withstands up to 1.5 MPa without damage.
Q2: What output types does this unit provide?
A: It offers two NPN open collector outputs and one 1 to 5 V analogue output.
Q3: Which fluids can I use with this sensor?
A: The AP-33A accepts air and non-corrosive gases only.
Q4: What is the display resolution?
A: Resolution is 0.001 MPa, 0.01 bar, 0.2 Psi, or 0.01 kgf/cm².
Q5: How do you ship this product?
A: We ship via Fedex, UPS, and DHL for global delivery.
