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Description
MT-1/NT9
Portable 3-phase watthour meter tester



The MT-1/NT9 is an all-in-one portable meter tester with advanced features such as VARh testing, kW demand test, THD consumer line monitoring and bi-directional testing for Net Metering installations. No other equipment needed.
A fast and accurate test is done within a few minutes! No setup wiring necessary. The MT1/NT9 is a full-featured tester at a budget-friendly price!

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.

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

Highly Compatible
You can test commercial and industrial three-phase meters along with residential meters.
Easily configurable with twist & lock removable tabs, you will be able to test both solid state and electromechanical meters.


Technical Specs
Compatible Meters | |
---|---|
Single-Phase | 1S, 2S, 3S*, 4S, 12S(N) and 25S |
Three-Phase | 6S, 8S, 9S, 12S, 14S, 15S, 16S, 36S, 46S, 96S and Fitzall™ (5S, 35S and 45S) |
Class | 10, 20, 100, 200, 320** |
Test Socket | |
Input Voltage | 100 – 600VAC |
Line Frequency | 58 – 62Hz |
Power Consumption | 75VA (maximum) |
Circuit Breakers | 2 x 1A (press-to-reset mechanism) |
Current Synthesizers | |
Adjustable Current | 0.25 to 50A |
Phase Angle (Wh) | Unity and 60° Lag |
Phase Angle (VARh) | 90° and 30° 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) |
Humidity | 5% to 95% (non condensing) |
Physical Dimensions | |
Test Socket (Diam. x L) | 6.9” x 7.7” |
Weight | |
Test Socket | 6.4 lb |
Warranty | |
Parts and Labor | 2-years limited*** |
advanced features | |
Wh/VARh | |
Reverse Flow Test for bidirectional meters | |
Line Monitor | |
KW Demand Test | |
Creep Test | |
INCLUDED | |
Carrying bag | Update cable |
User’s manual | WTDataOne Software |
Quick Start Guide | 2 Removable Twist Tabs |
Calibration report |
*An adapter is required to verify 3S Sensus Meter.
**An adapter may be required depending on the meter installation.
***Only applicable to units shipped to Canada or USA. 1-year warranty for other countries.