Related Manuals for Mastech MS8240B
Summary of Contents for Mastech MS8240B
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Page 1: Digital Multimeter
MS8240B Digital Multimeter Operating Instruction Digital Multimeter HOLD FUNC MS8240B FUSED FUSED... -
Page 2: Table Of Contents
1. Introduction CONTENTS This Meter is a handheld and battery operated Digital 1. Introduction ..........1 Multi Meter(DMM) with multi function. This Meter is designed to meet IEC-61010-1 CAT III 1000V over 2. Safety note ..........1 voltage category and double insulation. The entire outer surface of the case has been formed with thermo 3. -
Page 3: Meter Illustration
• Disconnect circuit power and discharge all high FRONT PANEL voltage capacitors before testing continuity, diode, resistance, capacitance or current. Note international Electrical Symbol. Dangerous voltage Grounding Warning see (Alternating Current) explain in manual Double insulation DC (Direct Current) FUNC HOLD AC or DC Fuse... -
Page 4: Functional Push Button
3.2 Functional Push Button 3.3 Display Indicators Function Push button ON/OFF Lock type Power Switch. “FUNC” key is the function select key that acts with trigger. Use the key as switch of FUNC DC/AC voltage,DC/AC current , Resistance/Continuity and °C/°F. Press “HOLD”... -
Page 5: Specification
4. Technical Specifications * Input impedance: 10MΩ * Over load protection: 250V DC/AC(rms) 4.1 General Specifications at 200mV Range. • Manual ranging DMM , that full scale is 1999 counts * Max input voltage: 1000VDC • Display : 3 1/2 digit LCD display. 4.2.2 AC voltage •... - Page 6 4.2.4 Diode 4.2.7 AC Current Range Range Accuracy Resolution Function Resolution Will display the forward 1µA 0.001V drop voltage. 0.01mA (1.5% rdg + 5dgt) 20mA 0.1mA 200.0mA * Over load protection: 250V DC/ AC rms 0.01A (3.0% rdg + 10dgt) 10.00A 4.2.5 Continuity * Over protection:use the fuse(F250mA/1KV) at mA...
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Page 7: Measurement Operation
4.2.9 Capacitance 5. Measurement Operation Accuracy Resolution 5.1 DC & AC Voltage Measurement Range 0.001nF To avoid harms to you or damage to the 0.01nF 20nF meter from electric shock. Please do not attempt to measure voltage higher than 0.1nF ±(4.0%rdg +5dgt) 200nF DC 1000V/AC 700Vrms although readings... -
Page 8: Resistance Measurement
5.3 Diode/Continuity check 5.2 Resistance Measurement To avoid damage to the Meter or to the To avoid damage to the Meter or to the equipment under test, disconnect power equipment under test, disconnect power and discharge all high-voltage capacitors and discharge all high-voltage capacitors before Diode/Continuity check. -
Page 9: Capacitance Measurement
5.5 Capacitance Measurement 5.6 Transistor Measurement Warning Warning To avoid damaging meter or device to be measured, Do not apply any RMS voltage higher than 250V DC before continuity tests, turn off all circuits to be or AC between common end and hFE end. tested and discharge all capacitors. -
Page 10: Frequency Measurement
5.7 Frequency Measurement Method of measuring current: 1. Turn off the power supply and discharge all high Warning voltage capacitors on the circuit to be tested. Do not measure the frequency of RMS voltage 2. Rotate switch to the appropriate position. higher than 250V DC or AC. -
Page 11: Temperature Measurement
5.9 Temperature Measurement 6. Maintenance 6.1 Battery Replacement Warning When the symbol shows on the display during Do not input any voltage higher than 12V DC or AC use of the meter, you must replace the batteries, to RMS within the temperature measuring range, to avoid affecting the normal use of the meter. - Page 12 HYS006665...
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