Metrel MD 9030 Digital-Multimeter, DMM, 20991441 Hoja De Datos

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MD 9030 TRMS Electrical & Electronic DMM with Temperature 
Operation 
 
4 Operation 
 
DC Voltage, AC Voltage, & Hz Frequency functions 
 
 
 
Note:
  
AC 400.0mV range selection is by RANGE button manually, and is specified from AC 
10mV (AC 40mV for True RMS model BM807) and up. 
 
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. 
 
 Resistance, and 
 Continuity functions 
Defaults at 
. Press SELECT button momentarily to select 
 Continuity function 
which is convenient for checking wiring connections and operation of switches. A 
continuous beep tone indicates a complete wire. 
display shows OL if the diode is good. Any other readings indicate the diode is resistive 
or shorted (defective).