MT-1/NT4 | Single-Phase Wh Meter Tester
Perfect for field inspection of electrical meters
In just a few minutes, a watthour meter can be accurately tested onsite by meter shop technicians for periodic sampling or routine inspection. Weighing only 5.3 lb., the MT-1/NT4 can be set to test in one step (Preset mode). the socket-style meter testing device is an ideal testing instrument for routine field testing.
The meter under test is securely controlled by the meter test socket. No wiring connection is needed.
Net metering-enabled
The MT-1/NT4 is a bidirectional meter and can perform reverse power flow testing in solid-state meters devices for net metering installations.
With the commercial 12S meter, the MT1/NT4 meter tester can test two phases either simultaneously or separately.
Small but mighty
Weight: 5.3 lb. | Size: 6.9″ X 7.7″
SKU: NT4
Perfect for field inspection of electrical meters
In just a few minutes, a watthour meter can be accurately tested onsite by meter shop technicians for periodic sampling or routine inspection. Weighing only 5.3 lb., the MT-1/NT4 can be set to test in one step (Preset mode). the socket-style meter testing device is an ideal testing instrument for routine field testing.
The meter under test is securely controlled by the meter test socket. No wiring connection is needed.
Net metering-enabled
The MT-1/NT4 is a bidirectional meter and can perform reverse power flow testing in solid-state meters devices for net metering installations.
With the commercial 12S meter, the MT1/NT4 meter tester can test two phases either simultaneously or separately.
Small but mighty
Weight: 5.3 lb. | Size: 6.9″ X 7.7″
SKU: NT4
MT-1/NT4 | Description
Probewell offers the most advanced portable single-phase watthour meter tester, the MT-1/NT4.
The MT-1/NT4 can test all common residential watthour meter forms: 1S, 2S, 3S, 4S and 12S.
The weight of the MT‑1/NT4 is only 5.3 lb., making it the smallest portable watthour single-phase meter tester available today.
The three loads (HL, PF and LL) are set automatically according to the TA of the meter being tested. Any non-standard current can also be programmed by the user for special requirements.
The MT-1/NT4 also has a reverse power flow testing capability for solid-state meters, meaning that it can perform testing for routine inspections of net metering installations.
Compatible Forms Supported by the MT-1/NT4 meter tester
Probewell offers the most advanced portable single-phase watthour meter tester, the MT-1/NT4.
The MT-1/NT4 can test all common residential watthour meter forms: 1S, 2S, 3S, 4S and 12S.
The weight of the MT‑1/NT4 is only 5.3 lb., making it the smallest portable watthour single-phase meter tester available today.
The three loads (HL, PF and LL) are set automatically according to the TA of the meter being tested. Any non-standard current can also be programmed by the user for special requirements.
The MT-1/NT4 also has a reverse power flow testing capability for solid-state meters, meaning that it can perform testing for routine inspections of net metering installations.
Compatible Forms Supported by the MT-1/NT4 meter tester
|
Meter Form |
1S |
2S |
3S |
4S |
5S |
6S |
8S |
9S |
12S |
14S |
15S |
16S |
Aclara® Fitzall ™ |
||
|
35S |
36S |
25S |
|||||||||||||
|
45S |
46S |
||||||||||||||
|
Meter Tester |
 |
Self-Contained |
CT-Rated |
Self-Contained |
CT-Rated |
Self-Contained |
|||||||||
|
|
a |
a |
a |
a |
|
|
|
|
a |
|
|
|
|
|
|
MT-1/NT4 | Technical Specifications
| COMPATIBLE METERS | |
| Single-Phase | 1S, 2S, 3S*, 4S* and 12S |
| 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 |
| 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(Diam. x L) | 8.3” x 3.9″ x 1” |
| Carrying Bag(Diam. x L) | 11” x 11” x 8″ |
| WEIGHT | |
| Test Socket | 5.3 lb |
| Remote Control(Diam. x L) | 0.6 lb |
| Overall with Carrying Bag(Diam. x L) | 8.0 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 |
* May be incompatible with some 3S and 4S form meters.
***Only applicable to units shipped to Canada or USA. 1-year warranty for other countries.
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Trade-in & Trade-Up
If you own an older-generation Probewell product, you are automatically eligible for our trade-in program.
Trade in your old meter tester and get up to 1,000 USD* off the purchase of any of our newer models.
*US customers only. If you are a customer from outside the United States, please contact Probewell.
Trade-in and Trade-Up
If you own an older-generation Probewell product, you are automatically eligible for our trade-in program.
Trade in your old meter tester and get up to 1,000 USD* off the purchase of any of our newer models.
*US customers only. If you are a customer from outside the United States, please contact Probewell.
