Parameters
Parameter Category Specification
Model Number UD1050A0CA-2A0
Product Type Digital Signal Converter (for Vortex Flowmeters)
Enclosure Type General Purpose (Aluminum Die-cast, Dustproof and Drip-proof IP66/NEMA 4X)
Power Supply Two-wire, 4-20 mA DC loop-powered.
• Operating Voltage Range: 10.5 to 42 V DC (Must be ≤ 32 V DC for intrinsic safety barriers in hazardous areas).
Output Signal • Primary Output: 4 to 20 mA DC analog, linear with configured process variable (e.g., flow rate).
• Load Resistance: 0 to 1050 Ω (with 42 V DC power supply).
• Digital Communication: BRAIN or HART protocol (FSK) superimposed on the 4-20 mA signal.
Input Signal Digital signal from a Yokogawa vortex flow sensor.
Compatible Sensors Yokogawa DY, YFVP, and other supported vortex flowmeter sensors.
Display (Local) • Type: 4-digit, 7-segment LCD display with status indicators.
• Functions: Displays flow rate, totalized flow, percentage, and diagnostics.
Programming (Configuration) • Local: Via magnetic switch on the front face.
• Remote: Via BRAIN or HART communicator (handheld device or PC-based software).
Performance • Accuracy: Highly dependent on the connected vortex sensor. The converter itself adds negligible error.
• Ambient Temperature: -40 to 85 °C (-40 to 185 °F).
Process Fluid Temperature Limited by the connected sensor, typically up to 450°C (842°F).
Electrical Connections • Conduit Entries: 1/2" NPT.
• Terminals: Spring-clamp terminals for easy wiring.
Certifications (General Purpose) CE, SIL 2 (Functional Safety according to IEC 61508).
Note: This -2A0 suffix denotes a general-purpose unit. For hazardous areas, an explosion-proof model (e.g., with -3A0 suffix) would be required.
Primary Applications Remote monitoring and control of steam, gas, and liquid flow in various industrial processes such as HVAC, power generation, chemical, and pharmaceutical industries.