The Metravi PM-29 Process Meter is a versatile and precise instrument designed for measuring, monitoring, and calibrating a variety of process signals commonly used in industrial automation and process control environments. It is capable of measuring both current (mA) and voltage (mV/V) signals, making it ideal for verifying the performance of transmitters, sensors, controllers, and other process equipment. Its compact design, high accuracy, and easy-to-use interface make the PM-29 suitable for field use as well as in maintenance, troubleshooting, and calibration tasks in industrial settings.

Key Specifications:

• Model: PM-29
• Brand: Metravi
• Measurement Type: Process Meter (Current and Voltage Measurement)
• Display: High-resolution digital LCD with backlight for easy reading of measurements in various lighting conditions.

Measurement Capabilities:

• Current Measurement:
  • Range: 0 to 24 mA
  • Resolution: 0.001 mA, providing precise measurement of current signals.
  • Accuracy: Typically ±0.02% of reading 1 digit, ensuring high precision for process control applications.
• Voltage Measurement:
  • Range: 0 to 100 mV and 0 to 10V
  • Resolution: 0.01 mV (for low voltage) and 0.001V, allowing detailed and accurate voltage measurements.
  • Accuracy: Typically ±0.02% of reading 1 digit, suitable for calibrating and testing voltage-based signals in control loops.
• Loop Power Supply:
  • Output: 24V DC, allowing the PM-29 to power 2-wire transmitters during testing or calibration without needing an external power source.

Features:

• Multifunction Measurement:
  • Measures mA and Voltage Signals: Can be used to measure process currents (e.g., 4-20 mA loops) and low voltage signals, making it suitable for testing and verifying a wide range of process instruments.
  • Simulates mA Output: Capable of simulating current loops to test devices like controllers and indicators, ensuring accurate system calibration.
• Digital Display:
  • Clear Backlit LCD: Provides easy-to-read measurements, ensuring visibility of readings in both bright and low-light environments.
• Data Hold Function:
  • Freeze Readings: Allows users to hold the current reading on the display for easier recording and observation during testing.
• Max/Min Recording:
  • Captures Extremes: Records and displays the maximum and minimum values during a measurement session, providing insights into fluctuations in process signals.
• Compact and Portable:
  • Lightweight Design: Ergonomically designed for easy handling, making it suitable for fieldwork and on-site calibration.

Power Source:

• Battery Operated: Uses standard batteries for portability and flexibility in various locations.
• Battery Type: Typically powered by 1 x 9V battery or a rechargeable battery option.
• Low Battery Indicator: Alerts users when battery power is low, ensuring uninterrupted operation during critical measurements.

Safety and Compliance:

• Durable Construction: Designed to withstand industrial environments, with a robust casing that provides protection against impacts and rough handling.
• Safety Rating: Designed to meet safety standards for use in industrial and process control environments.
• Certifications: Compliant with relevant industry standards, ensuring reliable and accurate performance.

Physical and Design:

• Compact and Lightweight: Ergonomically designed for easy handling, making it suitable for prolonged use during measurements.
• Color: Typically available in a professional-grade finish, such as black or blue.
• Warranty: One year against manufacturing defects, providing assurance of product reliability.

Applications:

The Metravi PM-29 Process Meter is ideal for a variety of applications, including:

• Process Control Calibration: Calibrates and verifies the performance of 4-20 mA current loops, transmitters, sensors, and controllers used in industrial automation.
• Field Calibration and Maintenance: Portable design makes it suitable for on-site testing and calibration of control loops and process instrumentation.
• Troubleshooting: Assists in identifying issues in control systems by measuring and simulating process signals, making it easier to diagnose faults in current loops and voltage outputs.
• Quality Assurance: Ensures that process instruments meet specified accuracy standards, helping maintain consistency and reliability in production processes.
• Research and Development: Provides precise measurements for testing and developing new process control systems and devices.

The Metravi PM-29 is a versatile and user-friendly process meter, offering the functionality needed to accurately measure, simulate, and calibrate critical process signals. Its combination of high precision, portability, and robust design makes it an essential tool for professionals working in process control, industrial automation, and instrumentation fields. Whether used for routine maintenance or detailed troubleshooting, the PM-29 ensures accurate and reliable performance, helping to keep processes running smoothly.