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User Manual
MM350
True RMS Auto Ranging Digital
Multimeter
Introduction
Congratulations on your purchase of the Triplett MM350 True RMS Auto
Ranging Digital Multimeter.
This instrument performs AC/DC voltage, AC/DC Current, Resistance, Audible
Continuity, Diode, Temperature measurements and Frequency measurements,
it is a 3 3/4 digits, 3999 counts Auto Ranging DMM.
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Table of Contents
Related Manuals for Triplett MM350
Summary of Contents for Triplett MM350
- Page 1 MM350 True RMS Auto Ranging Digital Multimeter Introduction Congratulations on your purchase of the Triplett MM350 True RMS Auto Ranging Digital Multimeter. This instrument performs AC/DC voltage, AC/DC Current, Resistance, Audible Continuity, Diode, Temperature measurements and Frequency measurements, it is a 3 3/4 digits, 3999 counts Auto Ranging DMM.
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Page 2: Electrical Symbols
Safety • Circuits under test must be de-energized and isolated before connections are made (except for voltage measurements). • Circuit connections must not be touched during a test. Use extreme caution when working near bare conductors and bus bars. Accidental contact with conductors could result in electrical shock. -
Page 3: Meter Description
Diode Continuity test °C Centigrade °F Fahrenheit AUTO Auto range Conforms to European Union directive. Double insulated. APO auto power off Battery capacity ▲ Relative test Data hold Meter Description 3 3/4 digit LCD, with a max. reading of 3999 Range Button The meter defaults to the auto range mode when you measure the... - Page 4 When you measure the diode or the continuity, pressing this button will switch the meter between the diode and the continuity functions. “ ” Button After pressing the button, the present reading is held on the display, meanwhile “ ” is displayed on the LCD as an indicator. To exit the Hold Mode, press the button again and the indicator “...
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Page 5: Operation
Operation Measuring Voltage Connect the black test lead to the “COM” jack and the red to the “INPUT” jack. Set the function switch to V or V range. Select auto range or manual range with the “RANGE” button. In manual range, if the voltage magnitude to be measured is unknown beforehand, select the highest range. - Page 6 Note: When the display shows the over range symbol “OL”, a higher range must be selected. Measure Resistance Connect the black test lead to the “COM” jack and the red to the “INPUT” jack (Note: The polarity of the red test lead is positive “+”). Set the range switch to “...
- Page 7 “ ” will appear as an indicator. Connect the red test lead to the anode of the diode to be tested and the black test lead to the cathode. The meter will show the approximate forward voltage of the diode. If the connections are reversed, “OL”...
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Page 8: Specifications
Specifications Accuracy is guaranteed for 1 year 23°C±5°C less than 80%RH 5-1. DC VOLTAGE (Auto ranging) Range Resolution Accuracy 400mV 0.1mV ±(0.8% of rdg + 5dgts) 10mV ±(0.8% of rdg + 3dgts) 400V 100mV 600V ±(1.0% of rdg + 5dgts) Input Impedance: 10MΩ... - Page 9 2000° 302°F~2000°F:±(2.5% + 4) NOTE: Different temperature sensors are configured in different temperature test ranges, and normal temperature sensors are provided for standard configuration 5-4. DC CURRENT Range Resolution Accuracy 400µA 0.1µA 4000µA 1µA 40mA 10µA ±(1.2% of rdg + 8dgts) 400mA 100µA 10mA...
- Page 10 Frequency Range: 40Hz ~ 400Hz Response: Average, calibrated in rms of sine wave 5-6. RESISTANCE (Auto Ranging) Range Resolution Accuracy 400Ω 0.1Ω 4KΩ 1Ω 40KΩ 10Ω ±(1.5% of rdg + 3dgts) 400KΩ 100Ω 4MΩ 1KΩ 40MΩ 10KΩ Open Circuit Voltage: about 0.25V Overload Protection: 250V DC/AC rms 5-7.
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Page 11: Battery Replacement
Triplett / Jewell Instruments extends the following warranty to the original purchaser of these goods for use. Triplett warrants to the original purchaser for use that the products sold by it will be free from defects in workmanship and material for a period of (1) one year from the date of purchase.
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