Meter Test Board (MTB3) – True Three-Phase Meter Testing System
The TESCO MTB3 Meter Test Board is a true three-phase testing system designed for electric utilities to perform advanced meter testing, validation, and diagnostics under real operating conditions.
Built on TESCO’s NextGen platform, the MTB3 applies true three-phase voltage and current to fully energize meters, enabling accurate testing of modern AMI meters, complex meter forms, and advanced functionality.
What is a True Three-Phase Meter Test Board?
A true three-phase meter test board applies independent voltage and current to all phases, allowing utilities to test meters exactly as they operate in the field.
This enables:
- Accurate testing of polyphase and complex meter forms
- Validation of phase relationships and load conditions
- Advanced functional and communications testing
Description
Key Features and Capabilities
True Three-Phase Testing
- Applies true three-phase voltage and current to meters
- Independent phase control enables precise phase-by-phase validation
- Fully energizes meters under real operating conditions
- Supports modern AMI and advanced meter types
Advanced Meter Testing Capabilities
The MTB3 supports:
- Accuracy testing
- Functional testing
- Qualification testing
- Demand and runtime testing
Sequence Testing & Automation
- Automated test sequences for repeatable results
- Configurable test setups
- Reduced operator intervention
Communications & PLC Testing
- Power Line Carrier (PLC) testing capabilities
- Communications validation for AMI meters
- Real-world communications simulation
Disconnect Testing
- Test meter disconnect functionality under load
- Validate meter switching performance
- Simulate field conditions
User Interface & Control
- Integrated display and control interface
- PC software interface via Ethernet
- Manual and automated testing modes
Modular & Scalable Design
- Configurable multi-rack system architecture
- Expandable based on utility requirements
- Each rack operates as a self-contained unit
Applications
The MTB3 is used by utilities for:
- Advanced meter testing and validation
- Polyphase meter testing
- AMI meter qualification and diagnostics
- Communications and PLC testing
- Meter certification and compliance testing
- Engineering and lab-level testing
What Makes the MTB3 Different?
The MTB3 is designed for modern meter testing challenges, where basic testing is no longer sufficient.
By providing:
- True three-phase energization
- Automated sequence testing
- Integrated communications validation
The MTB3 allows utilities to fully validate meter performance before deployment, reducing risk and improving system reliability.
Not sure whether a full series-parallel or true three-phase system is right for your application? The comparison below highlights the key differences.
MTB3 vs. Series-Parallel Meter Test Boards (MTB1)
| Feature | MTB3 | MTB1 |
|---|---|---|
| Testing Approach | True three-phase (independent control) | Series-parallel |
| Phase Control | Independent per phase | Shared across phases |
| Testing Accuracy Context | Phase-specific validation | General accuracy testing |
| Sockets per Module | 1 | 2 |
| Max Sockets per Chassis | Up to 3 | Up to 6 |
| Best Use Case | Polyphase & advanced testing | High-volume testing |
| Application Focus | Engineering / validation | Production meter shop |
Looking for full series parallel testing? Explore the MTB1 Meter Test Board.
Contact TESCO to discuss your testing requirements and configure an MTB3 system for your meter shop or lab environment.
Product Documents
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Disclaimer:
TESCO Metering reserves the right to modify product designs, specifications, features, and documentation at any time as part of our continuous improvement process. All information is provided “as is” and may change without prior notice. While TESCO® strives for accuracy, completeness, and technical reliability, customers should verify the latest product details before making purchasing or engineering decisions. For confirmation of current specifications or application suitability, please contact TESCO® directly.