Vanguard TRM-40 Amp Winding Resistance Meter
The Vanguard TRM-40 Amp Winding Resistance Meter measures DC resistance values for transformer windings and inductive devices. This third-generation transformer measures two windings: primary and secondary. Internal test record storage includes 256 static test records with each able to contain a max of 111 readings and 120 dynamic test records. Through the use of a USB drive, the device has a maximum external storage of 999 tests.
The TRM-40 observes resistance values from 1 µΩ to 500 µΩ. The versatile device features a test current range of 1A to 40A and measures in 1A increments. Using the Vanguard TRM-40 Amp Winding Resistance Meter, technicians record useful data accurately and efficiently.
| Dimensions W x H x L |
21 in x 17 in x 9 in 53 cm x 43 cm x 24 cm |
| Weight | 33 lb 15.4 kg |
| Resistance reading range | 1 micro-ohm ¬ 500 ohms |
| Accuracy | 1 ¬ 19,999 µΩ: ±0.5% reading, ±1 count 20 ¬ 999 mΩ: ±1% reading, ±1 count 1 ¬ 2,000 Ω: ±1.5% reading, ±1 count |
| Input power | 100 ¬ 240 Vac 50/60 Hz |
| Test currents | 1A ¬ 40A in 1A increments |
| Resistance channels | 2 static resistance reading channels |
| Internal test record storage | 256 static test records (each can contain up to 111 readings) 120 dynamic test records |
| Display | Back-lit LCD screen (128 x 64 pixels) Viewable in bright sunlight and low-light levels |
| PC software | Windows®-based software |
- Auto discharge circuit for operator safety
- Demagnetizes transformer after test
- Selectable test current
- Computer control via RS-232C, USB, bluetooth interface
- Built-in 2.5 in wide thermal printer