Related Manuals for Extech Instruments 380942
Summary of Contents for Extech Instruments 380942
- Page 1 User Guide Extech 380947 400A AC/DC Clamp Meter Extech 380942-NIST 30A True RMS AC / DC Mini Clamp Meter Extech 380942 30A AC/DC Clamp Meter Model 380942 True RMS AC/DC 30A Mini Clamp-on Meter netzerotools.com...
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Page 2: Meter Description
Introduction Congratulations on your purchase of the Extech Model 380942 DC/AC Clamp Meter. This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Meter Description 1. Current sense jaw 2. Measurement Trigger 3. -
Page 3: Operation
netzerotools.com Operation AC Current Measurements (True RMS) WARNING: To avoid electric shock, disconnect the test leads from the meter before making current measurements. 1) Set the Function switch to the 400mA, 4000mA, or 30A AC range. 2) Press the jaw trigger and clamp around, fully enclosing a single conductor. Do not allow a gap between the two halves of the jaw. -
Page 4: Advanced Features
netzerotools.com Advanced Features Relative Measurements 1) Press the ZERO key. The displayed reading will zero and the word ZERO will appear on the upper portion of the LCD. 2) All subsequent measurements will now be displayed with respect to the zeroed reading. For example, if a 20A reading is zeroed and a 30A reading is subsequently measured, the LCD will display 10A. -
Page 5: Specifications
netzerotools.com Specifications General Specifications Display 3-3/4 digit (4032 count) LCD with 40 segment bargraph Functions ACA, DCA, ACV, DCV Polarity Minus sign ( - ) indicates negative polarity Current sensor Hall effect sensor type Overload indication DCA zero adjust One touch zero key Display rate 3 readings/second (30 readings/second for bargraph) Battery...
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