Three Phase Energy Meter Calibration Verifier ll METES 3.5

Description

Three Phase Energy Meter Calibration Verifier ll METES 3.5

Three-Phase Energy Meter Calibration Verifier

The METES 325 is a portable three-phase energy meter calibration and verification instrument designed for accurate testing of electronic and Ferraris energy meters. It is particularly suitable for field verification, commissioning, maintenance, and applications involving pre-payment energy meters.

The instrument combines precise electrical measurements with a compact, rugged, and fully waterproof design. Its touchscreen interface provides simple access to test parameters and measurement results, while the onboard memory allows test data to be stored for later reporting and archiving.

Measurement Specifications

• Voltage Range: 3 × Phase, 85–250 V
• Current Ranges: 3 × 1 A RMS, 3 × 10 A RMS, and 3 × 100 A RMS
• Current Range Selection: Automatic or manual
• Voltage Accuracy: 0.1%
• Current Accuracy: 0.1%
• Power Accuracy: 0.2% (typical 0.1%)
• Fundamental Frequency: 50 / 60 Hz

Additional Measurement Options

For applications requiring higher current measurements, optional current ranges of 200 A, 500 A, and 1000 A are available.

General Specifications

• Auxiliary Supply: 85–265 V, 45–65 Hz, internally selected according to the measured voltage
• Operating Temperature: 0–50 °C
• Display: 3.5-inch colour touchscreen
• Housing: Rugged polycarbonate construction
• Protection: IP67, fully waterproof
• Dimensions (W × L × D): 315 × 255 × 150 mm
• Weight: 2.1 kg

The waterproof housing is designed to accommodate the sensors, wiring, optical pickup, and associated accessories within the same case, making the complete testing setup convenient to transport and suitable for demanding field conditions.

Energy Meter Verification

The instrument provides dedicated functions for verifying energy meter accuracy and detecting calibration errors. The measured percentage error can be displayed directly, allowing technicians to quickly assess meter performance in the field.

Instantaneous Measurements

The system measures and displays important electrical parameters for each phase as well as total system values, including:

• Voltage
• Current
• Phase angle
• Active power (W)
• Reactive power (var)
• Apparent power (VA)

Current Measurement

The unit is supplied with three clamp-on current sensors that allow convenient connection to the electrical network without requiring extensive wiring changes.

The clamp sensors support conductors with a maximum diameter of up to 15 mm, making them suitable for a wide range of field measurement applications.

User Interface

A simple menu-driven interface allows users to enter test parameters and view measurement results directly through the colour touchscreen. The intuitive design helps technicians perform verification procedures quickly and efficiently.

Onboard Memory and Data Management

All measurement readings and test results can be stored in the instrument’s onboard database. Stored information can include customer details, site information, and complete test results.

The saved data can later be transferred to the supplied PC software for report generation, printing, and long-term archiving.

Optional Bluetooth Printer

An optional Bluetooth wireless printer is available for immediate onsite printing of test results. The printer is battery powered and uses rechargeable batteries, allowing convenient printing without requiring a direct mains connection.