Parameter Table
Parameter Category Specification for UD1AG3-200N-1KD-2TA-N-CN
Model Number UD1AG3-200N-1KD-2TA-N-CN
Product Type Digital Indicator / Controller with Alarms and Transistor Output
Form Factor 48x48mm panel cutout, DIN rail mountable
Display Dual Display (Main and sub-display)
• Main: 4-digit, 0.36" red LED
• Sub: 4-digit, 0.2" red LED
Input Signal (Universal) Accepts a wide range of signals, configurable:
• DC Voltage: mV, V (e.g., 0-5V, 1-5V)
• DC Current: mA (e.g., 0-20mA, 4-20mA)
• Temperature: Various Thermocouples (K, J, R, S, B, T, E, N, L, U) and RTDs (Pt100, JPt100)
Alarm / Control Outputs 2 Relay Outputs
• Type: SPDT (Single Pole Double Throw) relay contacts
• Rating: 250V AC, 2A (resistive load)
Transistor Output 1 Transistor Output (T)
• Type: Open-collector NPN transistor
• Rating: 30V DC, 50 mA max. (Used for high-speed pulse transmission or connecting to a high-speed counter module on a PLC).
Auxiliary Output Transmitter Power Supply (A)
• Output: 24V DC (±10%), max. 30mA
• Purpose: Used to power a 2-wire 4-20mA transmitter (e.g., a pressure sensor) directly.
Communication Option This model (-N suffix) typically indicates no built-in standard communication (like RS-485). Communication for setup is done via the front keys.
Power Supply 100-240V AC (50/60 Hz) or 24V AC/DC (depending on ordered variant).
Front Panel Protection IP50 (Dust protected)
Market Specification -CN denotes configuration for the Chinese market. This may include Chinese language labeling, a Chinese manual, and compliance with specific Chinese standards.
Key Features • Scaling function for input signals
• High/low alarm limits for each relay
• PV (Process Variable) value, sensor burnout, and range indication
• Programmable via front keys
Key Features and Applications
Versatile Input: The universal input allows it to connect to almost any analog sensor (temperature, pressure, level, flow, etc.) by simple software configuration.

Integrated Solution: The built-in transmitter power supply eliminates the need for an external DC power supply for 2-wire sensors.

Dual Control/Alerting: The two relay outputs can be used for alarm alerts or direct control of devices (e.g., activating a solenoid valve or starter).

High-Speed Output: The transistor output is designed for applications requiring fast response times, such as transmitting a pulse output from a flowmeter to a counter.

Applications: Ideal for a wide range of applications including HVAC systems, industrial machinery, plastic processing equipment, water treatment plants, and building automation where flexible display, control, and sensor power are needed in a single compact unit.