Mastech MS8238B User Manual
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Mastech MS8238B User Manual

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Digital Multimeter
User's Manual
MS8238B
DIGITAL MULTIMETER
HOLD
NCV
600V CAT III
V
20
200
2
200m
600
12V
600
V
200
200
200m
2k
A
20k
200m
200k
2M
A
mAV
COM
MAX
200mA
MAX
10A
FUSED
FUSED
MAX 30 sec.
MAX
every 15 min.
600V
MS8238B
9V
1.5V
CAT III
600V

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Summary of Contents for Mastech MS8238B

  • Page 1 MS8238B Digital Multimeter User's Manual MS8238B DIGITAL MULTIMETER HOLD 600V CAT III 200m 1.5V 200m CAT III 600V 200m 200k 200mA FUSED FUSED MAX 30 sec. every 15 min. 600V...

  • Page 2: Table Of Contents

    Safety Information ........1 precautions before using the meter........1 2.1 Safety Standards The MS8238B 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 voltage, AC/DC current, resistance, diode, continuity, battery test and non-contact voltage tests.

  • 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

    3.2 Display 3 Description and Usage 3.1 Front Panel MS8238B DIGITAL MULTIMETER HOLD 600V CAT III 1.Low battery indicator 2.Data hold 200m 3.Measurement display 4.Polarity indicator 1.5V 200m 200m 200k 200mA FUSED FUSED MAX 30 sec. every 15 min. 600V 1.LCD display...

  • 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 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 7: 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 III 600V; pollution degree: II Measuring range Accuracy Resolution...
  • 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 ±(1.5% of reading +3 digits) 10mA 0.001V Diode Test Display shows forward Overload protection: voltage drop mA jack: FF400mA H 600V fuse...

  • Page 9: Maintenance

    5.2 Replacing the Battery and Fuses Note: • 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 determination of a lack of voltage present in a shut down.
  • Page 10 R-00-05-1049...

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