Product details
AP-33A Positive Pressure Main Unit – Clean, Fast, and Built to Last
The AP-33A is a positive pressure main unit from Keyence. It reads air and non-corrosive gases. The gauge pressure range goes up to 1.000 MPa. A bright 2-colour LED shows clear values. Response time is as fast as 2.5 ms. This unit works well in tight spaces and fast cycles.
Questions? Write to sales@powergearx.com or message +86 18030005825.
Specifications
- Brand: Keyence
- Model: AP-33A
- Series: AP-30 Series
- Type: Positive pressure, NPN
Pressure Details
- Rated pressure: 0 to 1.000 MPa
- Fluid type: Air or non-corrosive gases
- Pressure type: Gauge pressure
- Detectable range: -15 to +110 % of F.S.
- Pressure resistance: 1.5 MPa (15 bar)
Display and Resolution
- Display: 3 1/2-digit, 2-colour, 7-segment LED
- Character height: 11 mm
- Resolution: 0.01 bar, 0.2 Psi, 0.001 MPa, 0.01 kgf/cm²
Performance
- Hysteresis: Variable in hysteresis mode; 0.5 % of F.S. in standard mode
- Response time (chattering prevention): 2.5 / 5 / 100 / 500 ms (selectable)
I/O and Outputs
- Analogue output: 1 to 5 V (load impedance 47 kΩ min.)
- Control output: NPN open collector
- 100 mA max. (40 V max.)
- Residual voltage: 1 V max.
- 2-output (N.O. / N.C. selectable)
Power and Consumption
- Power voltage: 12 to 24 VDC ±10 %
- Ripple: (P-P) 10 % or less
- Current use: 50 mA or less (at 24 V); 90 mA or less (at 12 V)
Environmental Resistance
- Ambient temperature: 0 to +50 °C (no freezing)
- Relative humidity: 35 to 85 % RH (no condensation)
- Vibration resistance: 10 to 55 Hz, double amplitude 1.5 mm, 2 hours in X, Y, and Z directions
Materials and Weight
- Front housing: Polyamide
- Front panel sheet: PET
- Rear housing: Polysulfone
- Pressure port: Die-cast zinc
- Cable: Oil-proof cabtyre cable
- Weight: Approx. 120 g
Manager’s Insight
Manager’s Insight: The AP-33A is a solid pick for air pressure checks on production lines. The 2.5 ms response catches fast leaks. The 2-colour LED makes pass/fail easy to read from a distance. NPN output fits most PLCs in Asia and Europe. The die-cast zinc port holds up well under daily use.
Expert Review
Expert Review: This unit does one job well: fast, clear pressure readings. The 1.000 MPa range covers most factory air systems. The selectable chattering filter stops false alarms. Wiring is simple. The oil-proof cable suits machine shops. For the price, it is a reliable workhorse.
Best Fit Equipment and Scenarios
- Air compressors and pneumatic lines
- Leak test benches
- Packaging machines
- Pick-and-place robots
- CNC coolant and air blow systems
- Automated assembly stations
- Vacuum and pressure clamping fixtures
FAQ
Q: Can this unit read vacuum pressure?
A: No. It reads positive gauge pressure only. The range is 0 to 1.000 MPa. For vacuum, pick a different model.
Q: What power supply do I need?
A: Use 12 to 24 VDC. Keep ripple under 10 % (P-P). A clean supply avoids LED flicker and false trips.
Q: How do I set the response time?
A: Use the chattering prevention menu. Choose 2.5, 5, 100, or 500 ms. Short times catch fast changes. Long times stop noise.
Q: Is the NPN output safe for my PLC?
A: Yes, for most PLCs with NPN input cards. Check your card current limit. The output handles 100 mA max.
Q: What is the warranty and shipping policy?
A: We offer a 12-month warranty. Orders ship in 12–24 hours. We use FedEx, UPS, and DHL. Tracking is provided.
Q: How do I pick the right pressure sensor?
A: First, check your fluid. Air and dry gases work best. Second, match the pressure range to your system. Third, check output type: NPN or PNP. Fourth, confirm your port size and cable length. Fifth, buy from a seller who offers a 12-month warranty and fast dispatch.
Q: Can I use this outdoors?
A: No. Keep it in a dry, indoor spot. Ambient temperature must stay between 0 and 50 °C. Avoid condensation.
Need help? Email sales@powergearx.com or chat on +86 18030005825.
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