Elma 805/807
Page 34
4) OPERATION
DC VOLTAGE, AC VOLTAGE, & HZ FREQUENCY FUNCTIONS
Note:
1) AC 400.0mV range selection is by RANGE button manually, and is specified
from AC 10mV (AC 40mV for True RMS model ELMA 807s) and up.
2) DC 400.0mV range is designed with 1000M
high input impedance for least
current drain in measuring small signals, and can cope better with most
commercially available voltage output transducers and adapters. The non-zero
display reading is normal when the meter inputs are open circuit, which will not
affect actual measurement accuracy. Open input is actually a floating condition,
which is not a zero-volt-input condition. The meter will show zero or close to zero
reading when the inputs are shorted.
