YOKOGAWA MLD LOOP POWERED INDICATOR MLD-A1 LP312052

Description:

The Yokogawa MLD-A1 LP312052 Loop Powered Indicator is used in industrial process systems to display real-time measurement values from 4–20 mA signals without requiring external power. Commonly installed in field-mounted locations such as pipelines, tanks, and process equipment where local indication is required. Maintenance teams, OEMs, and system integrators use this indicator for process monitoring, troubleshooting loops, and replacing outdated or non-visible instrumentation.

Applications:

The Yokogawa MLD-A1 LP312052 loop powered indicator is used in industrial automation systems to display process variables such as pressure, flow, temperature, and level directly from transmitters. It is commonly deployed in chemical plants, oil & gas facilities, power generation, and water treatment systems where operators need local visual feedback. The unit is ideal for hazardous or remote environments due to its explosion-proof design and ability to operate solely from the loop signal without external power. 

Technical Specifications:

• Manufacturer: Yokogawa
• Model / Part Number: MLD-A1 / LP312052
• Product Type: Loop Powered Process Indicator
• Input Signal: 4–20 mA DC (loop-powered operation)
• Power Requirement: No external power required (powered by current loop)
• Display Type: Digital display (0–1999 or 0–100% scaling)
• Accuracy: ±0.05% of full scale ±1 count
• Voltage Drop: ~1.8 V typical (max 2 V)
• Operating Temperature: -20°C to 60°C
• Mounting: Wall mount or 2” pipe mount
• Housing: Explosion-proof, NEMA 4X enclosure
• Electrical Connection: 1/2” NPT or M20 conduit entry
• Function: Displays process variable from transmitter signal
• Application Environment: Hazardous and industrial field installations
• Product Status: Discontinued (modern replacements available)

Common Replacements:

• Yokogawa MLX Field Mount Loop Indicator
• Yokogawa YPP6870 Process Meter
• Yokogawa MLA Analog Loop Indicator