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Description
MT-1/NT3
Portable 3-Phase Watthour Meter Tester



The MT-1/NT3 is an ideal tool for field-testing and periodic sampling of self-contained meters. No setup wiring is needed. A complete test is done within a few minutes!
The MT-1/NT3 can be set to test all 3 phases simultaneously in one step or set to do a full test consisting of the 3 phases simultaneously followed by each element separately.

Self-Contained Meters
An ideal testing solution for self-contained meters, the MT-1/NT3 also has reverse flow testing capability for net metering installations.

Uncompromised accuracy
Three built-in 50A current synthesizers (phantom load) simulate active and reactive load.
Its built-in single-phase Wh/VARh standard will offer you a typical NIST traceable accuracy of ±0.02%.

Easy Setup
Fast setup with no wiring and a dead-front design means your operation is quicker and safer.
Setting-up your test has never been easier.


Technical Specifications
Compatible Meters | |
---|---|
Single-Phase | 1S, 2S, 12S, 14S, 15S and 16S |
Class | 100, 200, 320 |
Test Socket | |
Input Voltage | 100 – 600VAC |
Line Frequency | 58 – 62Hz |
Power Consumption | 75VA (maximum) |
Circuit Breakers | 3 x 1A (press-to-reset mechanism) |
Current Synthesizers | |
Adjustable Current | 1 to 50A |
Phase Angle (Wh) | Unity and 60° Lag |
internal 3-phase Watthour Standard | |
Typical Accuracy | ±0.02% |
Guaranteed Accuracy | ±0.05% |
environment | |
Operation Temperature | -4° to 140°F (-20° to 60°C) |
Storage Temperature | -4° to 140°F (-20° to 60°C) |
Physical Dimensions | |
Test Socket (Diam. x L) | 6.9” x 7.7” |
Remote Control | 8.3” x 3.9” x 1″ |
Carrying Bag | 11″ x 11″ x 8″ |
Weight | |
Test Socket | 5.7 lb |
Remote Control | 0.6 lb |
Carrying Bag | 8.7 lb |
Warranty | |
Parts and Labor | 2-years limited*** |
INCLUDED | |
Carrying bag | Update cable |
User’s manual | WTDataOne Software |
Quick Start Guide | 2 Removable Twist Tabs |
Calibration report | Remote Control |
***Only applicable to units shipped to Canada or USA. 1-year warranty for other countries.