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Summary of Contents for Mastech MS8238A
- Page 1 MS8238A Digital Multimeter User's Manual MS8238A CAT II 600V...
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Page 2: Table Of Contents
2.Safety Information........1 precautions before using the meter.........1 2.1 Safety Standards The MS8238A is a small, safe and reliable 3 1/2 digit ........2 2.2 Precautions handheld multimeter. This meter can measure AC/DC ......3 2.3 Electrical Symbols... -
Page 3: Precautions
2.2 Precautions • When the low battery indicator“ ”is displayed, replace the battery.The accuracy of the meter cannot be • To avoid electrical shock or personal injury, observe guaranteed while the low battery indicator is on. and follow all safety precautions •... -
Page 4: Description And Usage
3.1 Front Panel 3.Rotary switch 4.10A input jack 5.Common jack 6.Input jack (all functions except current greater than 200mA) 7.Non-contact voltage (NCV) button 8.Non-contact voltage (NCV) indicator 3.2 Display MS8238A 1.Low battery indicator 2.Data hold 3.Measurement display 4.Polarity indicator 5.Diode cycle... -
Page 5: Using The Meter
3.3 Using the Meter 3.3.4 AC/DC current measurement 3.3.1 Data Hold • Turn off power to the circuit. Allow all capacitors to The data hold function will hold the current reading on discharge. the display. • Set the rotary switch to the appropriate AC or DC •... -
Page 6: Specifications
4. Specifications 4.2 Technical Specifications 4.1 General Specifications Accuracy: ±(% of reading + digits) at 18°C~28°C with a relative humidity of <80%; guaranteed for a period of one year. Range Function 4.2.1 DC Voltage Safety Rating CAT II 600V; pollution degree: 2 Measuring range Accuracy Resolution... - Page 7 3.3.5 Resistance measurement Warning • Turn off power to the circuit. Allow all capacitors to To prevent injury or damage to the meter,turn discharge. off power to circuit and discharge all capacitiors • Set the rotary switch to the appropriate resistance range. fully before making resistance measurements.
- Page 8 4.2.4 Diode Test 4.2.7 AC Current Measuring range Accuracy Function Resolution Description Resolution ±(1.0% of reading +3 digits) 200mA 0.1mA Forward DC current:1mA Reverse DC voltage: 2.9V ±(2.5% of reading +3digits) 10mA Diode Test 0.001V Display shows forward Overload protection: mA jack: F250mA H 250V fuse voltage drop 10A jack: F10A H 250V fuse Overload protection: 250V DC or AC (RMS)
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Page 9: Maintenance
Note: 5.2 Replacing the Battery and Fuses • Even if the indicator doesn’t go off, voltage may still 1. Under normal conditions, it is unnecessary to replace the fuse. exist.Do not use NCV detection as the sole Don't replace it until the probes are unplugged and the power is shut down. - Page 10 R-00-05-1048...
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