Bk-precision 393 - Manual Manual do Utilizador Página 1

Model: 392 and 393 Handheld Digital Multimeters USER MANUAL

10 1.3 Front Panel Overview Figure 1 - Front Panel View 161110987621(6000 or RS232)15141312543cal>2s±++nsmV+V+mVMAX

11 Front Panel Description VΩHz%ns The positive input terminal for Voltage, Ohms, Frequency, Duty Cycle, Conductance, Diode measurements. Connecti

12 PEAK+ Cal>2S Records the peak+ and peak- values of a measurement with a response time as low as 1ms. Pressing the button for more than 2 seco

13 2 Getting Started 2.1 Using the Digital Multimeter With no signal present, set the rotary switch to the desired measurement function. Ensure

14 2.3 DC and AC Current Measurements Turn the rotary switch to the corresponding symbol for the measurement you would like to perform. Current m

15 WARNING: Do not connect more than 400 mA DC current across the mA input terminal or the protection fuse will be tripped. Higher Current Measur

16 2.4 Make Resistance Measurements Turn the rotary switch to the corresponding symbol for the measurement you would like to perform. CAUTION:

17 2.5 Make Diode Measurements Turn the rotary switch to the corresponding symbol for the measurement you would like to perform. Press the shift b

18 Follow these steps for continuity testing: 1. Connect the black test lead to the COM input. 2. Connect the red test lead to the VΩHz%ns inp

19 CAUTION: Always connect the test leads to the instrument inputs first before connecting the DUT to avoid potential shock hazard. Follow these

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20 Follow these steps to make a temperature measurement. 1. Plug the K-type thermocouple directly into the meter. 2. Apply the thermocouple bead

21 2.11 Auto Power Off Auto power off occurs approximately after 30 minutes when there has been no interaction with the meters knobs or buttons.

22 4 Specifications  Display: 60000 counts, 60 segments analog bar graph  Polarity: Automatic, (-) negative polarity indication  Overrange Indi

23 AC Volts (True RMS) Range Resolution Accuracy (45 Hz - 2 kHz) / HFR2 Input Impedance 600 mV 0.01 mV +(1.0% rdg + 20 dgt)(1) +(1.5% rdg + 20

24 Current DC Current Range Resolution Accuracy 600 μA 0.01 μA +(0.5% rdg +10 dgt) 6000 μA 0.1 μA 60 mA 1 μA 400 mA 10 μA +(1.0% rdg + 10

25 Resistance Range Resolution Accuracy Open Circuit Voltage 600 Ω 0.01 Ω +(0.3% rdg + 20 dgt) -3.0 V DC typical 6 kΩ 0.1 Ω +(0.3% rdg + 10 d

26 Capacitance (6000 counts) Range Resolution Accuracy 6 nF 0.001 nF +(3.0% rdg + 30 dgt) 60 nF 0.01 nF +(3.0% rdg + 10 dgt) 600 nF 0.1 n

27 Frequency Range Resolution Accuracy Trigger Level 1 60 Hz 0.001 Hz +(0.1% rdg + 10 dgt) >1.5 V 600 Hz 0.01 Hz >1.5 V 6 kHz 0.1 Hz &

28 10 Maintenance Do not expose the LCD display to direct sunlight for long periods of time. Cleaning If the instrument requires cleaning, disconn

29 SERVICE INFORMATION Warranty Service: Please go the support and service section on our website www.bkprecision.com to obtain an RMA #. Return th

3 Safety Summary The following safety precautions apply to both operating and maintenance personnel and must be observed during all phases of operati

30 LIMITED THREE-YEAR WARRANTY B&K Precision Corp. warrants to the original purchaser that its products and the component parts thereof, will b

22820 Savi Ranch Parkway Yorba Linda, CA 92887 www.bkprecision.com © 2013 B&K Precision Corp. Printed in Taiwan V12

4 WARNINGS AND CAUTIONS WARNING and CAUTION statements, such as the following examples, denote a hazard and appear throughout this manual. Follow al

5 Compliance Statements Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other European countries with sep

6 CE Declaration of Conformity The power supply meets the requirements of 2006/95/EC Low Voltage Directive and 2004/108/EC Electromagnetic Compatibi

7 Safety Symbols Electrical Shock hazard. Caution, refer to the operating user manual for warning information to avoid hazard or perso

8 Table of Contents Safety Summary ...... 3 1 General Information ...

9 1 General Information 1.1 Product Overview The B&K Precision 392 and 393 handheld digital multimeters provide standard measurement functio