Related Manuals for UEi DM393
Summary of Contents for UEi DM393
- Page 1 INSTRUCTION MANUAL DM391/393 1-800-547-5740 • Fax: (503) 643-6322 www.ueitest.com • email: info@ueitest.com...
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Page 2: Safety Notes
• Use a current clamp adapter when measuring current that may C o n t rols and Indicators exceed 10 amps. See the accessories in UEi’s full-line ca t a l o g • Do not open the meter to replace batteries or fuses while the... -
Page 3: Rotary Switch
(DM393) AC volts RMS and DC volts. Press “SELECT” displays the “D.H.” indicator on the LCD. Hold mode freezes the display push-button to choose AC or DC voltage for later view. (DM391) AC volts (Backlight) Press the “HOLD” ( ) push-button for two seconds to turn the (DM391) DC volts backlight ON or OFF, when the “HOLD”... -
Page 4: Operating Instructions
NEVER CONNECT THE LEADS TO A SOURCE OF VOLTAGE Resistance ( , ) Measurement when the rotary switch is set to , , or functions (Ohms, Diode, and Continuity) DM391/393-MAN P. 3... - Page 5 “H z /D u t y” push-button momentarily while measuring volts or currents. The available frequency ranges are: 5Hz, 50Hz, 500Hz, 5kHz, 50 k H z , 500kHz, 5MHz, and 10 MH z . DM391/393-MAN P. 4...
- Page 6 4. Turn on power to the circuit and read the display. 5. After measuring current, turn off power to the circuit and discharge at high-voltage capacitors. Disconnect the meter and restore the circuit to normal operation. DM391/393-MAN P. 5...
- Page 7 In this case, the series fusible resistors and the spark gaps should be replaced by qualified personnel. Refer to the L IMITED WA RRA NTY & L IMITATIONS OF L I A BIL ITY section for obtaining warra n ty or repairing serv i c e . DM391/393-MAN P. 6...
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Page 8: Feature Summary
( 50 M , 100 pF nominal for 400 mV ra n g e ) 006P ir IEC 6F 22 Battery life 250 hrs. typical (w/backlight off) DM393 AC Voltage 250 hrs. typical (w/backlight off) DM391 Shock degree Per MIL-T-PRE 28800 for Class II Range Resolution Accuracy... -
Page 9: Electromagnetic Compatibility (Emc)
DC Current Frequency and Duty Cycle Range Resolution Accuracy Range Resolution Accuracy Remark DM391 DM393 D M 3 9 1 D M 3 9 3 400µA 0.1µA 0.001Hz 4000µA 1µA 50Hz 0.01Hz 40mA 10µA 1.0% + 2 1.0% + 2 500Hz 0.1Hz... - Page 10 Temperature Coefficient: Is a factor used to calculate the change in indication or output of an instrument with changes in temperature. Uncompensated changes in temperature contribute uncertainty by an amount determined by the temperature coefficient to instrument. DM391/393-MAN P. 9...
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Page 11: Digital Multimeter
Digital Multimeter Limited Warranty The DM391/ 393 is warranted to be free from defects in materials and workmanship for a period of five years from the date of purchase. If within the warra n ty period your instrument should become inoperative from such defects, the unit will be repaired or replaced at UE i ’ s option.
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