ZKTeco PSA‑02 – Magnetic Loop Detector Overview

The PSA‑02 is an inductive (magnetic) loop controller designed to detect vehicles positioned ahead of a barrier or gate—commonly used in automated entry systems like parking barriers. ZKTeco+11ZKTeco+11Redlinesys+11

It connects to a ground loop coil via the PSA‑03 wire of at least 1 mm² cross-sectional area. mbcommunication.com.pk+4ZKTeco+4Redlinesys+4

⚙️ Specifications

• Operating voltage: AC 230 / 110 V ±10%, 50 Hz

• Power consumption: ~4.5 W

• Relay output rating: AC 120 V / 3 A

• Operating range: −20 °C to +65 °C, humidity 10 %–90 % RH

• Frequency range: 20 kHz to 170 kHz (adjustable to reduce interference) artilec.com+4ZKTeco+4ZKTeco+4

• Reaction time: ~10 ms

• Recommended loop inductance: 80–300 µH

• Detection modes:

  • Infinite presence – keeps signal active while vehicle remains on loop

  • Limited presence – fixed timeout (default about 5 minutes) if absent longer pi-tech.biz+8ZKTeco+8ZKTeco+8Redlinesys+1ZKTeco+1

• Dimensions: approx. 78 × 40 × 108 mm

• Mounting: designed for dry control cabinets; maintain ≥10 mm clearance around device