• Use a current clamp adapter when measuring current that may 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...
7. Common Input Terminal: (Ground reference) for all measurement functions. 8. Input Terminal for Multiple Functions: Input jack for all measurements except current (A, mA, µA) measurement functions. 9. RS-232 Optical Interface: Allows connection to a computer. DM397-MAN P. 2...
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User-Friendly Rotary Switch Selections DM397-MAN P. 3...
“4” for “EXIT” . For subsequent readouts the programmed reference value is subtracted from the actual measurement. The programmed reference value is lost when the meter is turned off. To exit REL∆ mode, press the “REL∆” push-button. DM397-MAN P. 4...
“ON” in the primary display and “+”, “-” and “EXIT” in the on screen menu selection. You can toggle “OFF/ON” by pressing the “+” or “-” menu keys. Press the “EXIT” menu key for the next setup selection DM397-MAN P. 5...
*dBm readout = 10 x log (primary display readout 2/r), where R = 600Ω (default) db readout = 20 x log (primary display readout / ref), where ref = 1V (default) This meter has high impedance circuitry (10MΩ) for measuring voltage. DM397-MAN P. 6...
• The resistance function can produce enough voltage to f o rward-bias silicon diodes or transistor junctions causing them to conduct to avoid this, and possibly damaging circuit components - Do not use the 50 MΩ range for measuring in-circuit resistance DM397-MAN P. 7...
Dual Display Menu key Connect Le a d s P r i m a ry Display S e c o n d a ry Display Measurement *I RMS = (AC+DC total RMS amps) (no selection) Diode DM397-MAN P. 8...
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1. Turn the meter off and remove all test leads. 2. Shake out any dirt that may be in the terminals. 3. Soak a new swab with alcohol and work the swab around in each terminal. DM397-MAN P. 9...
Emissions - commercial limits for EN 50081-1 Size (H x W x D) 8.2” x 4.1” x 2.1” (208 x 103 x 54 mm) Weight Approximately 1.44 lb (655 g) Warranty 5 years Calibration interval 1 year DM397-MAN P. 10...
: >60dB @ DC to 60 Hz, Rs = 1kΩ Using relative (REL∆) mode Input impedance : 10MΩ, 30 pF nominal (50MΩ, 100 pF nominal for 500m V range) Conductance (5,000 counts only) Range Resolution Accuracy 50 nS 0.01 nS 0.1% + 10 DM397-MAN P. 11...
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This meter has a CMRR specification of >60 dB at DC to 60 Hz in AC volts measurement function and >120 dB at DC, 50Hz and 60Hz in DC volts measurement function. DM397-MAN P. 12...
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Analog Bar Graph: The analog bar graph provides a visual indication of measurements similar to a traditional analog meter’s needle. It is excellent in detecting faulty contacts, identifying potentiometer’s clicks and indicating signal spikes during adjustments. DM397-MAN P. 13...
True RMS Digital Multimeter Limited Warranty The DM397 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 UEi’s option.