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Summary of Contents for Mastech MS8235
- Page 1 MS8235 DIGITAL CLAMP METER OPERATION MANUAL DIGITAL MULTIMETER + LAN Teter 2 in 1 2000 counts /Autorange MS8235 FUNC RANGE HOLD TEST µA Ω Cable IEC61010-1 600V CAT III VΩ HzµAmA 600V MAX 10A/500V~ MAX 200mA/1000V~...
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Page 2: Table Of Contents
CONTENTS CONTENTS 1. Safety Information......1 4.8 Measurement Of DC Voltage.....15 1.1 Preliminary ..........1 4.9 Measurement Of AC Voltage.......16 1.2 Dos And Don’ts........2 4.10 Diode Test ..........17 1.3 Symbols..........3 4.11 Circuit Continuity Test ......17 1.4 Precautions...........3 4.12 Resistance Measurement ......18 2. Description........4.13 Measurement Of DC Current ....19 2.1 Names OF Parts ........5... -
Page 3: Safety Information
1. Safety Information 1.1.4 The test probes must be kept in good condition. Check whether the insulation of the test probes WARNING has been damaged and whether any wire has been exposed. BE EXTREMELY CAREFUL WHEN USING THE METER. 1.1.5 Using the test probes supplied can ensure safety. Improper use of this device can result in electric If required, they must be replaced with those of shock or destruction of the meter. -
Page 4: Symbols
1.2.11 Do not use the meter near explosive gases, the“ ” symbol appears on the LCD. steam or dirt. 1.4.4 To avoid fire hazards, the replacement fuse must 1.2.12 Stop using the meter if any abnormalities or meet the specified voltage and current ratings of F faults are noticed. -
Page 5: Names Of Parts
LAN Teter 8)Test key 9)Panel 10) Rotary selector 11)mA/μA/V/Ω jack 12) COM jack 2 in 1 2000 counts /Autorange 13) 10A jack MS8235 14) Guard plate FUNC RANGE HOLD 2.2 Switch, Buttons And Input Jacks TEST HOLD key For reading holding µA... -
Page 6: Display
2.3 Display The RING line is clamped by the red clip AC (alternating current) The TIP line is clamped by the red clip DC (direct current) Audio signal Auto range AUTO ① — ② Cable pair 1-2 Ω Ohms (Resistance) ③... -
Page 7: Technical Index
3.1.10 Detecting network cable integrity, judging open Note: circuit, short circuit, miswiring, split pair and At the low voltage range, unsteady readings will appear reverse connection of the network cable, and before the test probes contact the circuit. This is normal shield integrity, and displaying abnormity because the meter is highly sensitive. - Page 8 3.2.3 Resistance - Overload protection: μA, mA range: fuse 200mA/1000V (quick acting) Range Accuracy Resolution 10A range: fuse 10A/500V (quick acting) - Max. input current: μA/mA jack (μA range): 2000uA 200Ω 0.1Ω μA/mA jack (mA range): 200mA 2KΩ 0.001KΩ 10A jack: 10A 20KΩ...
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Page 9: Operation Instructions
4. Operating Instructions 4.5 Backlight Source 4.1 Function Switching 1) If the environment is too dark for reading during measurement, hold on to the " " key for more than 1) Press the "FUNC" key to switch between AC and DC 2 seconds to turn on the backlight source. -
Page 10: Measurement Of Dc Voltage
4) Connect the common test wire and then the live test 4.9 Measurement Of AC Voltage wire during connection. Remove the live test wire WARNING first during disconnection. There is the risk of electric shock. 4.8 Measurement Of DC Voltage Pay special attention to avoid electric shock when measuring high voltages. -
Page 11: Diode Test
4.10 Diode Test Note: 4.10.1 Plug the black probe into the COM jack and the If the test probes are open or the resistance of the circuit red probe into the jack. under test is over 200Ω, “0L” will be displayed on the LCD. 4.10.2 Set the range selector to the range position. -
Page 12: Measurement Of Dc Current
4.13 Measurement Of DC Current 4.14 Measurement Of AC Current WARNING WARNING There is the risk of electric shock. There is the risk of electric shock. Turn off the power of the circuit under test, Turn off the power of the circuit under test, and then connect the meter to the circuit in and then connect the meter to the circuit in series for measurement. -
Page 13: Network Cable Integrity Test
4.15 Measurement Of Frequency 4.16.5 Insert a slotted screwdriver or any other flat object into the notch and push up hard to remove the WARNING front cable Interface. There is the risk of electric shock. Turn off the power of the circuit under test, and then connect the meter to the circuit in series for measurement. -
Page 14: Non-Contact Voltage Detection
4.18 Operating Precautions Of Protective Cover Note: 1) If the cable under test has no shield, the shield symbol WARNING will flash to indicate open circuit, which is normal. There is the risk of electric shock. After the protective cover is lost, the voltage 4.17 Non-contact Voltage Detection and current measurement function of the 4.17.1 Sockets and power cords can be detected for the... -
Page 15: Automatic Power Off
4.18.3 The figure below shows how the protective cover is 5. Maintenance used when the cable detection function is not used. 5.1 Replacement Of Batteries WARNING Before opening the battery cover of the meter, remove the test probes from the circuit under test to avoid the risk of electric shock. -
Page 16: Replacement Of Fuse
5.2 Replacement Of Fuse 5.3 Replacement Of Test Probes WARNING WARNING The test probes must be replaced with those Before opening the battery cover, remove the of the same model or class, and must be kept test probes from the circuit under test to avoid the risk of electric shock.
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