Description

The MTN/VM330D is a high-performance, compact, and rechargeable handheld vibration meter designed for accurate machinery health monitoring. While it shares the robust measurement capabilities of the VM220, the VM330D adds essential PC Link functionality, allowing engineers to download and manage data for long-term analysis.

Features

• High-Visibility Display: Features a vibrant 16-bit colour LCD screen with a 160 x 128 resolution and a wide 100° viewing angle.
• Durable Design: Housed in a rugged industrial rubber case to withstand field use.
• Internal Data Storage: Built-in non-volatile memory can store up to 100 time-stamped readings, including measurement values, filter settings, units, and crest factor.
• Integrated PC Link: Allows for the storage and transfer of measurement data to a PC via a USB mini-B cable.
• Audio and AC Output: Includes a 3.5mm stereo jack that allows users to listen to vibration directly through headphones or output an AC signal.
• Advanced Filtering: Equipped with switchable low-pass filters (1kHz, 5kHz, 10kHz) and a 1-10kHz band-pass filter specifically for bearing condition monitoring.

Technical Specifications and Measurement Modes

Measurement Capabilities

The device supports multiple measurement modes and units to suit various industrial applications:

• Acceleration: Range of 20g; units in g or m/sec².
• Velocity: Range of 200mm/s; units in mm/sec or in/sec.
• Displacement: Range of 2000µm; units in µm or mils.

 

Calculation and Analysis

The VM330D provides diverse calculation modes for comprehensive analysis:

• RMS (Root Mean Square): For standard severity assessment.
• Peak and Peak-to-Peak: To capture maximum vibration levels.
• Crest Factor (CF): Specifically designed to identify impacting caused by roller bearing wear, gear tooth wear, or cavitation.
• Bearing Condition: Specialised modes for bearing acceleration and velocity.

 

Machine Status Indication (ISO Standards)

The unit conforms to ISO10816-3 and ISO10816-7 standards, offering eight modes for different machine classes and foundations. It provides a visual colour-coded status indication:

• Unacceptable / Severe: Red.
• Unsatisfactory / Restricted: Orange.
• Satisfactory: Yellow.
• Good / Unrestricted: Green.

Hardware, Environmental, and Accessories

Power and Connectivity

• Battery: Powered by a 3.7V Lithium-ion battery providing over 20 hours of life.
• PC Connection: The device connects to a computer via the USB mini-B port.
• Charging: Reaches full charge within 4 hours via mini-USB port using the supplied worldwide charger.
• Auto Power-Off: To conserve energy, the meter shuts down after 15 minutes of inactivity (or 5 minutes if the sensor is disconnected).
• Sensor Connection: Uses a robust 4-pin Lumberg connector for the sensor cable.

Data Transfer and Logging

• Software Integration: Using the Data Reader software, users can download all stored readings at once or select specific entries.
• CSV Export: Data can be exported into CSV files, enabling seamless integration with spreadsheets like MS Excel for trending and reporting.

 

Physical and Environmental Specifications

• Dimensions: 130mm (L) x 78mm (W) x 28mm (H).
• Weight: The meter alone weighs 0.215kg, while the complete kit is 1.427kg.
• Operating Temperature: 0 to +45°C.
• Environmental Protection: Rated to IP54 standards.

 

Standard Kit Accessories

The VM330D is typically supplied as a complete kit (MTN/HE016 carrying case) including:

1. MTN/2100-X Probe Sensor.
2. MTN/MM001 Magnet.
3. MTN/PS002 4” Spike.
4. MTN/CA476 Coiled Sensor Cable (up to 2.2m stretch length).
5. MTN/BT004 Worldwide Adaptor with four regional plugs.
6. MTN/CA477 USB A to mini USB B Charger Cable.
7. MTN/HB039 Handbook.