سنسور و مبدل سنسور مجاورتی

Product Attributes

Introduction

The PCUA series piezoelectric analog or switch output ultrasonic proximity sensors feature the following characteristics:

• Maximum range 30 inches (760 mm)
• Metal housing version CSA certified intrinsically safe for DIV 1, Class I, II, III Groups C, D, E, F, G
• Available in switch and analog versions
• All PCUA products certified for ordinary locations
• Burst frequency 215 KHz
• Power requirements: 10 to 30 VDC, 50 mA maximum
• Sensing range: 4 to 30 inches (100 to 760 mm), adjustable
• Beam angle: 10° cone angle (typical)
• Weight: 9.0 oz (255 g)
• Operating temperature range: 32 to 122°F (0 to 50°C)
• Response time: 35 ms maximum
• Error: ±1.5% maximum at constant temperature
• Cable: PVC 3-conductor 24 AWG shielded cable
• Output circuit configurations:
  • Analog current output (A) sourcing unit: 4 to 20 mA current source, 20 mA maximum, acceptable load resistance 0 to 300 ohms
  • Analog voltage output (AV) sourcing unit: 0 to 5 VDC voltage source, 5 VDC at maximum distance, acceptable load resistance 50 KΩ or greater, 1 K ohm source impedance in series between unit and instrument
  • DC switch output current sinking (NA, NB) units: emitter follower current sink, 30 VDC maximum, 100 mA, will not switch TTL level inputs
  • DC switch output current sourcing (PA, PB) units: emitter follower current source, 30 VDC maximum, 100 mA, will switch TTL level inputs
• Analog units:
  • Non-linearity: ±1.5% of measured distance maximum at constant temperature
  • Error due to temperature change: 1%/°F (2%/°C) of measured distance typical
• Switch units:
  • Hysteresis: 10% of set point typical
  • LED: indicates target presence
  • Output (black wire) has no short circuit protection; must not be miswired
  • Switching point repeatability: ±1.5% maximum of initial set value at constant temperature
  • Error due to temperature change: 1%/°F (2%/°C) of initial set value typical
• Model number configuration:
  • Series: PCUA30
  • Housing: M = nickel-plated brass, M30 x 1.5 6g thread; P = nylon 6.6 glass-filled, M30 x 1.5 8g thread
  • Maximum sensing range: 30 = 30 inches
  • Output type: NA = sinking, normally open; NB = sinking, normally closed; PA = sourcing, normally open; PB = sourcing, normally closed; AI = 4–20 mA sourcing; AV = 0–5 VDC sourcing