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Summary of Contents for Extech Instruments DM4750D
- Page 1 Digital Multimeter DM4750D...
- Page 2 Introduction Congratulations on your purchase of the Extech DM4750D Multimeter. This meter measures AC/DC Voltage, AC/DC Current, Resistance, Diode Test, and Continuity plus Thermocouple Temperature. This device is shipped fully tested and calibrated and, with proper use, will provide years of reliable service.
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Page 3: Overvoltage Category
OVERVOLTAGE CATEGORY III This meter meets the IEC 61010-1-2001 standard for OVERVOLTAGE CATEGORY III. Cat III meters are protected against overvoltage transients in fixed installation at the distribution level. Examples include switches in the fixed installation and some equipment for industrial use with permanent connection to the fixed installation. -
Page 4: Controls And Jacks
Controls and Jacks 1. Rubber holster (must be removed to access battery) 2. 2000 count LCD display 3. °F button for temperature measurements 4. °C button for temperature measurements Function switch mA, uA and A input jacks 7. COM input jack Positive input jack 9. -
Page 5: Specifications
DISPLAY BACKLIGHT Press and hold the button to turn on the display backlight function. The backlight will automatically turn off after 15 seconds. BATTERY CHECK CHECK function tests the condition of the 9V battery. Set the function switch to the 200VDC range and press the CHECK button. - Page 6 General Specifications Diode Test Test current of 1mA maximum, open circuit voltage 2.8V DC typical Continuity Check Audible signal when resistance is less than approximately 150 10MΩ Input Impedance AC Response Average responding ACV Bandwidth 50Hz to 1kHz DCA voltage drop 200mV 3 ½...