Subscribe to Our Youtube Channel
Related Manuals for Major tech MT785
Summary of Contents for Major tech MT785
- Page 1 INSTRUCTION MANUAL MT785 1500V DC H&W ANALYSIS CLAMP METER WITH DATA LOGGER & MOBILE APP...
-
Page 3: Table Of Contents
Contents Page no ................1. Introduction ..................2. Safety 2.1. Safety Information..............5 2.2. Safety Notes................5 ................2.3. Warnings ................2.4. Cautions 2.5. Input Protection Limits...............6 3. Description..................7 3.1. Meter Description..............7 3.2. Display Icons Description............8 3.3. Description of Function Keys............8 3.3.1. Peak/Inrush/ESC Button...........8 3.3.2. - Page 4 Contents Page no 4.3. Measuring AC Power (Active, Apparent, Reactive)/..Power Factor (PF)/Displace Power Factor........20 4.4. Measuring DC Power..............21 4.5. Energy (Active, Apparent, Reactive)...........22 4.6. AC/DC Current Measurement............23 4.7. AC Voltage Measurement............24 4.8. DC (AC+DC) Voltage Measurement..........25 4.9. Low Z Voltage Measurement............26 4.10.
-
Page 5: Introduction
1. INTRODUCTION The instrument carries out the following measurements: • AC TRMS voltage • DC voltage and AC+DC TRMS voltage • Phase sequence • Active, reactive, apparent power and power factor on single-phase • Active, reactive, apparent energy on single-phase systems •... -
Page 6: Cautions
• Do not measure current on a circuit whose voltage exceeds 1000V. • When changing ranges always disconnect the test leads from the circuit under test. • Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. -
Page 7: Description
3. DESCRIPTION 3.1. Meter Description 1 - NCV Test 8 - LCD Display 2 - Current Clamp 9 - F1 Button 3 - Non-Contact AC Voltage 10 - F2 Button Indicator Light 11 - F3 Button 4 - Clamp Trigger 12 - Flashlight 5 - Data Hold/Flashlight Button 13 - Battery Cover... -
Page 8: Display Icons Description
3.2. Display Icons Description - Auto Power Off - Key Beeper - Bluetooth - Automatic/Manual Mode - System’s Time - Battery Capacity - Measuring Unit - Measuring Result - Analogue Bar Graph 10 - Indications Associated with Function Keys 3.3. Description of Function Keys 3.3.1.Peak/Inrush/ESC Button •... -
Page 9: Data Hold/Flashlight Button
• Inrush Function Note: Only ACA functions can do the INRUSH value measurement. 1. Switch motor off and put the clamp meter on the motor. 2. Press the Peak/Inrush/ESC Button, “----”will appear in the display. 3. Switch motor on and then read the value on the display. •... -
Page 10: F1,F2,F3 Software Key
3.3.3. F1,F2,F3 Software Key • F1 Software Key: Default switch to MODE Function, AC POWER Function and SAVE Button. • F2 Software Key: Default into RANGE Button, the rotary switch function. • F3 Software Key: Default into Menu Button. 3.4. Description of Internal Functions 3.4.1. -
Page 11: Relative Values
3.4.2. Relative Values 1. To activate the relative mode, press and hold the F3 Key for more than 2 second to enter the selection interface. 2. Press and hold the F1 Key to enter relative measurement, the message REL and symbol “Rel” appear on the display. -
Page 12: Current Measurement Mode
3.5.2. Current Measurement Mode 1. Press and hold the F3 Button for more than 2 second to enter the selection interface. 2. Press the F2 (Har) Button to enter Harmonic Measurement, press the F2 Button again to go back. 3. Press the F1 (<<) and F3 (>>) to select symbol “H01~H25”... - Page 13 3. Press and hold the F3 Button to enter the Harmonic Voltage Current Analysis interface of power, including Voltage Harmonic Analysis Maps, Harmonic Current Analysis Maps and Electrical Energy Testing. 4. Press the F1 Button to enter the Current Harmonic Test. 5.
-
Page 14: Main Menu
3.6. Main Menu • Press the F3 Button to enter the selection interface. • Press the F1 Button into selection menu, press the F2 or F3 Button to enter the Installation Settings interface, which can set the Key Sound, Automatic Shutdown Time, Time Display Format and Bluetooth On. 3.7. -
Page 15: Recall Measurements
3.9.1. Recall Measurements • Press the F1 Button to enter the data view, F1 deletes the data, F2 turns up, F3 turns down. • Press the ESC Button to exit the view. 3.9.2. Delete Measurements • Press the F1 Button to enter the data view, F1 delete the data, F3 returns to the Previous Menu. -
Page 16: Recall Recordings
3.10.2. Recall Recordings Press the F1 Button to enter the Viewing Interface, F1 to enter the record trend chart viewing interface, F2 to turn up, F3 to turn down the page. 1. Setup New Recording Press the F1 Button to enter the record installation interface, F2 up, F3 down. -
Page 17: Meter Info
3.11. Meter Info • Press the F3 Button to enter the Instrument Information Interface, F1 returns to the Previous Menu. • Press the ESC Button to exit. 3.12. Factory Set • Press the F3 Button to enter the Instrument Factory Settings Interface, F1 OK, F2 selection is, F3 select NO. -
Page 18: Operation
4.Operation Notes: Read and understand all WARNING and CAUTION statements in this operation manual prior to using this meter. 4.1. Individual Harmonic Voltage Measurement 1. Set the function switch to the VAC Hz% Position. 2. Insert the black test lead banana into the COM Input Jack; Insert the red test lead banana into the Positive Input Jack. -
Page 19: Individual Harmonic Current Measurement
4.2. Individual Harmonic Current Measurement WARNING: Ensure that the test leads are disconnected from the meter before making current clamp measurements. 1. Set the function switch to the 1000A AC/DC Position. 2. Press and hold the F3 Button for more than 2 second to enter the selection interface and press the F2 (Har) Button to enter Harmonic Measurement. -
Page 20: Measuring Ac Power (Active, Apparent, Reactive)
4.3. Measuring AC Power (Active, Apparent, Reactive)/Power Factor (PF)/Displace Power Factor 1. Set the rotary switch to the W Position. 2. Insert the black test lead banana into the COM Input Jack; Insert the red test lead banana into the Positive Input Jack. 3. -
Page 21: Measuring Dc Power
4.4. Measuring DC Power 1. Set the rotary switch to the W Position. 2. Insert the black test lead banana into the COM Input Jack; Insert the red test lead banana into the Positive Input Jack. 3. Press the trigger to open the transformer jaws and clamp one conductor only,make sure that the jaw is firmly closed around the conductor. -
Page 22: Energy (Active, Apparent, Reactive)
4.5. Energy (Active, Apparent, Reactive) 1. Set the rotary switch to the W Position. 2. Insert the black test lead banana into the COM Input Jack; Insert the red test lead banana into the Positive Input Jack. 3. Press the trigger to open the transformer jaws and clamp one conductor only, make sure that the jaw is firmly closed around the conductor. -
Page 23: Ac/Dc Current Measurement
4.6. AC/DC Current Measurement WARNING: Ensure that the test leads are disconnected from the meter before making current clamp measurements. 1. Set the Function Switch to the 1000A AC/DC range. 2. In DC Current mode Press the F1 (REL) Button to zero the meter display. -
Page 24: Ac Voltage Measurement
4.7. AC Voltage Measurement 1. Set the rotary switch to the VAC Position. 2. Insert the black test lead banana into the COM Input Jack; Insert the red test lead banana into the Positive Input Jack. 3. Connect the test leads in parallel to the circuit under test. 4. -
Page 25: Dc (Ac+Dc) Voltage Measurement
4.8. DC (AC+DC) Voltage Measurement 1. Set the rotary switch to the VDC AC+DC Position. 2. Insert the black test lead banana into the COM Input Jack; Insert the red test lead banana into the Positive Input Jack. 3. Connect the test leads in parallel to the circuit under test. 4. -
Page 26: Low Z Voltage Measurement
4.9. Low Z Voltage Measurement WARNING: Observe all safety precautions when working on live live voltages. Do not connect to circuits that exceed 600V AC/DC when the meter is set to Low Z. • Low Z is used to check for “ghost” voltage. •... -
Page 27: Resistance Measurement
4.10. Resistance Measurement 1. Set the rotary switch to the Ω CAP Position. 2. Insert the black test lead banana into the COM Input Jack; Insert the red test lead banana into the Positive Input Jack. 3. Touch the test probe tips across the circuit or component under test. 4. -
Page 28: Continuity Check
4.11. Continuity Check 1. Set the rotary switch to the Ω CAP Position. 2. Insert the black test lead banana into the COM Input Jack; Insert the red test lead banana into the Positive Input Jack. 3. Use the MODE Button to select continuity “ ”, the display icons will change when the MODE Button is pressed. -
Page 29: Diode Test
4.12. Diode Test 1. Set the rotary switch to the Ω CAP Position. 2. Insert the black test lead banana into the COM Input Jack; Insert the red test lead banana into the Positive Input Jack. 3. Use the MODE Button to select the diode function if necessary (Diode symbol will appear on the LCD when in Diode test mode). -
Page 30: Capacitance Measurement
4.13. Capacitance Measurement WARNING: To avoid electric shock, discharge the capacitor under test before measuring. 1. Set the rotary switch to the Ω CAP Position. 2. Insert the black test lead banana into the COM Input Jack; Insert the red test lead banana into the Positive Input Jack. 3. -
Page 31: Frequency Measurement
4.14. Frequency Measurement WARNING: To avoid electric shock, discharge the capacitor under test before measuring. 1. Set the rotary switch to the VAC Hz% Position. 2. Insert the black test lead banana into the COM Input Jack; Insert the red test lead banana into the Positive Input Jack. 3. -
Page 32: Temperature Measurement
4.15. Temperature Measurement WARNING: To avoid electric shock, be sure the thermocouple probe has been removed before changing to another measurement function. 1. Set the function switch to the TEMP Position. 2. Use the MODE Button to select °C or °F. 3. -
Page 33: Non-Contact Ac Voltage Measurement
4.16. Non-Contact AC Voltage Measurement WARNING: Risk of Electrocution. Before use, always test the Voltage Detector on a known live circuit to verify proper operation. 1. Touch the probe tip to the hot conductor or insert into the hot side of the electrical outlet. -
Page 34: Automatic Power Off
5. Automatic Power OFF • In order to conserve battery life, the meter will automatically turn off after approximately 15 minutes. • To turn the meter on again, turn the function switch to the OFF Position and then to the desired function position. 6. -
Page 35: Ac Trms Voltage (50Hz-400Hz)
7.1.2. AC TRMS Voltage (50Hz-400Hz) Range Resolution Accuracy 6.000V 0.001V 60.00V 0.01V ±(1.5% + 5 digits) 600.0V 0.1V 1000V Input impedance: > 9MΩ; Protection against overcharge: 1000V DC/AC rms. Accuracy specified from 5% to 100% of the measuring range, sine wave; Accuracy PEAK function: ±10%rdg, PEAK response time: 1ms. -
Page 36: Ac Trms Current
7.1.6. AC TRMS Current Range Resolution Accuracy 600.0A 0.1A ±(2.5% + 8 digits) 1000A ±(2.8% + 8 digits) Protection against overcharge: 1000A DC/AC rms. Accuracy specified from 5% to 100% of the measuring range, sine wave. Accuracy Inrush function integral time 100ms, and reading for reference only. 7.1.7. -
Page 37: Duty Cycle
7.1.10. Duty Cycle Range Resolution Accuracy 10.0%-90.0% 0.1% ±(1.2% + 8 digits) Pulse frequency range: 40Hz-10kHz; Pulse amplitude: ±5V (100s-100ms) 7.1.11. Temperature with K-Type Probe Range Resolution Accuracy -40.0 to 600.0°C 0.1°C ±(1.5% + 3°C) 600 to 1000°C 1°C -40.0 to 600.0°F 0.1°F ±(1.5% + 5.4°F) 600 to 1800°F... -
Page 38: Dc Power
7.1.15. DC Power Range Resolution Accuracy 0.00-99.99kW 0.01kW ±(3.0% + 10 digits) 100.0-999.9kW 0.1kW ±(3.0% + 5 digits) Protection against overcharge: 1000V DC/AC rms Voltage >10V; Current ≥10A; Pf ≥0.5; Below 2% of range, add 20 counts. 7.1.16. AC Power (Active, Apparent, Reactive) Range Resolution Accuracy... -
Page 39: General Specifications
7.2. General Specifications Basic Functions Range Clamp Jaw Opening 33mm (1.26”) approx. Bluetooth Display 6000 counts RGB LCD Low Battery Indication “ ” is displayed Over-Range Indication Over-range indication “OL” display Measurement Rate 3 readings per second, nominal PEAK Captures peaks >1ms INRUSH 100ms Temperature Sensor... - Page 40 MAJOR TECH (PTY) LTD South Africa Australia www.major-tech.com www.majortech.com.au sales@major-tech.com info@majortech.com.au...
Need help?
Do you have a question about the MT785 and is the answer not in the manual?
Questions and answers