Overview

The YOKOGAWA UM33A-000-00/CV Digital Indicator is a versatile device designed for process control applications. It features contact input capabilities and retransmission output, making it suitable for various industrial environments.

Technical Specifications

Contact Input Specifications

• Number of Inputs: 2 points
• Input Type: No-voltage contact input or transistor contact input
• Input Contact Rating: 12 V DC, 10 mA or more
  • Minimum ON-current: 1 mA or less
• ON/OFF Detection:
  • No-voltage Contact Input:
    • “ON” when contact resistance is 1 kΩ or less
    • “OFF” when contact resistance is 50 kΩ or more
  • Transistor Contact Input:
    • “ON” when input voltage is 2 V or less
    • Leakage current must not exceed 100 µA when “OFF”
• Minimum Status Detection Hold Time: Input sampling period + 50 ms
• Usage: Event input

Retransmission Output Specifications

• Number of Outputs: 1 retransmission output (shared with 15 V DC loop power supply)
• Current Output:
  • 4 to 20 mA DC or 0 to 20 mA DC (load resistance of 600 Ω or less)
• Current Output Accuracy:
  • ±0.1% of span (±5% of span for 1 mA or less)
  • Accuracy based on standard operating conditions: 23 ± 2°C, 55 ± 10% RH, and power frequency at 50/60 Hz
  • Note: This accuracy refers to the performance of the transmission output itself, not conversion accuracy through input and output.