Our new U1252B DMM has an odd "feature". When you select the DC voltage measurement mode, the meter seems to have a voltage threshold. If the voltage is less than about 9 or 10 volts, it displays 0.0000. Above that threshold it displays the correct voltage. If you press the Range button to select a fixed range, when it gets to 00.000 it no longer appears to have a threshold. Is this truly a "feature" or a defect? If it is a feature, how do you defeat it? If anyone has seen this behaviour before or has any ideas I would appreciate if you could respond. Thanks!!