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Megger MTO210 Transformer ohmmeter
Introduction of MTO210
The Megger MTO210 Transformer Ohmmeter is a precision instrument designed for accurate measurement of transformer winding resistance, a vital component in transformer maintenance and diagnostics. This device is essential for identifying potential issues in transformer coils, such as shorts, poor connections, and winding damage.
The MTO210 is particularly effective in evaluating the windings and contact resistance of tap changers with 'make-before-break' contacts and voltage regulators. It excels at detecting pitted or misaligned contacts, providing alerts if these problems are detected. Additionally, it features an auto-shutdown function for enhanced safety, ensuring that any accidental disconnection of a test lead or power loss to the instrument automatically discharges any stored energy in the unit under test (UUT) to maintain safety.
Megger MTO210 Key Features
- Direct 2-channel digital reading (1 mW to 2000 W)
- DC test current up to 10 A maximum
- 0.25% measurement accuracy
- Integrated demagnetization feature
- Tests operation of on-load tap-changers
- Very fast auto safety discharge circuit
Megger MTO210 Specifications
| SPECIFICATION | DETAILS |
|---|---|
| Input | 120/240 V, 50/60 Hz, 720 VA |
| Output | User Selectable Current Ranges: up to 10 mA, 100 mA, 1 A, 10 A |
| Open-Circuit Test Voltage: up to 50 V dc | |
| Resistance Measurement/Display | Resistance: 1 mΩ to 2000 Ω |
| Accuracy: ±0.25% reading, ±0.25% full scale | |
| Resolution: Up to 6 digits | |
| Displays | Two 1” high, 6 character, 7-segment, LCDs |
| One 0.71” high, 6 character, 7-segment, LCD | |
| Printer | Via RS-232 port |
| User Interface | B&W alphanumeric displays, keypad |
| Computer Interface | Via RS-232 port (for downloading results) |
| Internal Data Storage | Up to 10,000 data sets |
| Environmental Conditions | Operating: 14° F to 122° F (-10° C to 50° C) |
| Storage: 5° F to 158° F (-15° C to +70° C) | |
| Relative Humidity: 0-90% non-condensing | |
| Dimensions | 8.5 H x 21.5 W x 13 D in (216 H x 546 W x 330 D mm) |
| Weight | Net 29 lb (13.1 kg) |