- 8.5 digit resolution
- DCV standard, options for AC, ohms, amps
- High speed measurements
- High accuracy in-circuit ohms measurement
In addition to superb DC voltage capabilities, the Model 1271 features AC performance that is unsurpassed by any other systems DMM. Above 1kHz, it can take up to 20 high-accuracy 61/2-digit AC readings per second. And simultaneous measurement of the input signal frequency saves the cost of a separate frequency counter.
ATE systems often cause problems for high-accuracy DMMs because of the large temperature rise that can occur in equipment racks. Not so for the Model 1271. Using its Selfcal feature, you can maintain full measurement accuracy at temperatures as high as 35C, without losing traceability. And you only need to perform Selfcal every 30 days or when the ambient temperature shifts more than 5C. Compare that to other precision systems DMMs that require an internal cal every 24 hours to maintain full specification.
The Model 1271 also excels at in-circuit testing. Its special Ohms functions allow accurate measurement of resistors even when they are part of complex resistor networks or when they have diode junctions in parallel. Its True-Ohms function eliminates thermal emfs and similar offset voltages in signal multiplexers. The availability of three separate input channels means that in many applications you wont even need to use an external signal multiplexer.
The Model 1271 is also built for safety. Two rear-panel mounted input channels keep signal cabling safely in the back of the cabinet, leaving the frontpanel terminals free for manual testing or system debugging.