Extech MM750W Datalogging True RMS Multimeter User Manual

1. හැඳින්වීම

This manual provides instructions for the safe and effective use of the Extech MM750W Datalogging True RMS Multimeter. The MM750W is a robust, full-featured multimeter designed for professional use, offering 14 functions including non-contact AC voltage detection and Type K temperature measurements. Its CAT IV safety rating ensures protection in industrial environments. A key feature is its wireless datalogging capability via Bluetooth, allowing real-time data transmission to smart devices using the ExView W-Series app.

රූපය 1: ඉදිරිපස view of the Extech MM750W Datalogging True RMS Multimeter, showing the display, function dial, and input jacks.

2 ආරක්ෂිත තොරතුරු

WARNING: Read and understand all safety information and operating instructions before using this meter. Failure to do so may result in serious injury or death.

• සෑම විටම දේශීය සහ ජාතික ආරක්ෂක කේතයන් පිළිපදින්න.
• මීටරය හානි වී ඇති බව පෙනේ නම් හෝ පරීක්ෂණ ලූඩ් වලට හානි සිදුවී ඇත්නම් එය භාවිතා නොකරන්න.
• Ensure the function switch is in the correct position for the measurement being performed.
• Observe all terminal ratings and never exceed the maximum input limits.
• වෙළුම සමඟ වැඩ කිරීමේදී ප්‍රවේශම් වන්නtag30V AC RMS, 42V උපරිම හෝ 60V DC ට වඩා වැඩි වෝල්ටීයතාවයක් ඇති බැවින්, මේවා කම්පන අවදානමක් ඇති කරයි.
• ආරක්ෂිත කණ්නාඩි සහ පරිවරණය කළ අත්වැසුම් වැනි සුදුසු පුද්ගලික ආරක්ෂක උපකරණ (PPE) පළඳින්න.
• The MM750W is rated for CAT IV 600V and CAT III 1000V. Understand the implications of these categories for safe measurement.

3 ප්රධාන ලක්ෂණ

• Wireless Datalogging: Records and transmits over 15,000 readings to iOS and Android devices via Bluetooth Datalogging Module (DAT12) for remote viewing using the free ExView W-Series app.
• 14 Measurement Functions: Includes AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, Duty Cycle, Diode Test, Continuity, Non-Contact AC Voltage (NCV), and Type K Temperature.
• සත්‍ය ආර්එම්එස්: Provides accurate AC measurements for non-sinusoidal waveforms.
• AC µA Function: Ideal for HVAC flame rod current measurements.
• දත්ත ග්‍රහණය: Allows snapshots of the measurement area with a connected smartphone or tablet camera to document date/time stamps and measurement data.
• CAT IV ආරක්ෂණ ශ්‍රේණිගත කිරීම: Provides enhanced protection in industrial environments.

4. පෙට්ටියේ ඇති දේ

ඇසුරුම් ඉවත් කිරීමෙන් පසු සියලුම අයිතම පවතින බවත් හානි නොවී ඇති බවත් තහවුරු කර ගන්න:

• Extech MM750W Multimeter
• පරීක්ෂණ සටහන් (රතු එකක්, කළු එකක්)
• Type K Bead Wire Temperature Probe
• Bluetooth Datalogging Module (DAT12)
• 9V Battery (installed or separate)
• මෘදු රැගෙන යාමේ නඩුව

Figure 2: The Extech MM750W Multimeter shown with its complete set of accessories, including test leads, a Type K temperature probe, the DAT12 Bluetooth module, and a soft carrying case.

5. පිහිටුවීම

5.1. බැටරි ස්ථාපනය

1. මීටරය ක්‍රියා විරහිත කර ඇති බවට වග බලා ගන්න.
2. Locate the battery compartment on the rear of the meter.
3. Use a screwdriver to remove the screw securing the battery cover.
4. බැටරි කවරය ප්‍රවේශමෙන් ඉවත් කරන්න.
5. Connect a 9V battery to the battery clips, observing correct polarity.
6. Place the battery into the compartment and replace the cover, securing it with the screw.

5.2. Test Lead Connection

Always connect the test leads correctly for the desired measurement function.

• බොහෝ වෙළුම් සඳහාtage, resistance, continuity, and diode measurements, insert the red test lead into the VΩµA input jack and the black test lead into the COM input jack.
• For current measurements up to 600mA, insert the red test lead into the VΩµA input jack and the black test lead into the COM input jack.
• For current measurements up to 10A, insert the red test lead into the 10A input jack and the black test lead into the COM input jack.

රූපය 3: පසුපස view of the Extech MM750W Multimeter, showing the integrated test lead holders and the battery compartment cover. The test leads are shown connected and stored.

5.3. Bluetooth Datalogging Module (DAT12)

The DAT12 module enables wireless communication with smart devices.

1. Insert the DAT12 module into the dedicated port on the top of the multimeter.
2. Download the free ExView W-Series app from your device's app store (iOS or Android).
3. ඔබගේ ස්මාර්ට් උපාංගයේ බ්ලූටූත් සක්‍රීය කරන්න.
4. Ex එක විවෘත කරන්නView W-Series app and follow the on-screen instructions to pair with the MM750W.

6. මෙහෙයුම

6.1. මූලික මිනුම්

Turn the rotary switch to the desired function. The display will show the measurement value.

• වෙළුමtage (V~, V-): AC හෝ DC පරිමාව තෝරන්නtage. Connect test leads in parallel with the circuit.
• Current (A~, A-): Select AC or DC current. Connect test leads in series with the circuit. Ensure correct input jack (µA/mA or 10A).
• ප්‍රතිරෝධය (Ω): Turn off power to the circuit. Connect test leads across the component.
• අඛණ්ඩතාව ()))): Turn off power. Connect test leads across the circuit. A tone indicates continuity.
• ඩයෝඩ පරීක්ෂණය (→|): Turn off power. Connect test leads across the diode.

Figure 4: An electrician safely measuring voltage within an electrical panel using the Extech MM750W Multimeter. The meter's display is visible, showing a reading.

6.2. උසස් කාර්යයන්

• සම්බන්ධතා නොවන AC වෙළුමtagඊ (එන්සීවී): Position the top of the meter near an AC voltage source. The NCV indicator will illuminate, and an audible tone will sound if AC voltage අනාවරණය වේ.
• Type K Temperature (Temp): Insert the Type K bead wire probe into the VΩµA and COM jacks (observing polarity). Select the temperature function.
• MAX / MIN: Press the MAX/MIN button to record the maximum and minimum readings during a measurement session.
• සාපේක්ෂ මාදිලිය (REL): Press the REL button to store the current reading as a reference and display subsequent measurements as a deviation from this reference.
• Frequency/Duty Cycle (Hz/%): Select the appropriate function to measure frequency or duty cycle of an AC signal.

Figure 5: A technician using the Extech MM750W Multimeter with its Type K temperature probe to measure the temperature of a furnace flue, demonstrating the meter's temperature measurement capability.

6.3. Datalogging and Bluetooth Connectivity

හිටපුView W-Series app enhances the functionality of your MM750W.

1. Ensure the DAT12 module is connected and the meter is paired with your smart device via the ExView W-Series app.
2. යෙදුම තුළ, ඔබට පුළුවන් view real-time readings, initiate datalogging sessions, and configure logging intervals.
3. The app allows you to generate reports, analyze collected data, and add notes or photos (taken with your smart device camera) to specific readings for comprehensive documentation.
4. Your smart device can also serve as a second display for convenient viewing or sharing of measurements from a safe distance.

7. නඩත්තු කිරීම

7.1 පිරිසිදු කිරීම

දැන්වීමකින් මීටරයේ කවරය පිස දමන්නamp රෙදි සහ මෘදු ඩිටර්ජන්ට්. උල්ෙල්ඛ හෝ ද්‍රාවක භාවිතා නොකරන්න. භාවිතයට පෙර මීටරය සම්පූර්ණයෙන්ම වියළී ඇති බවට වග බලා ගන්න.

7.2. බැටරි ප්රතිස්ථාපනය

When the battery symbol appears on the display, replace the 9V battery as described in Section 5.1. Prompt battery replacement ensures accurate readings and proper meter function.

8. දෝශ නිරාකරණය

9. පිරිවිතර

10. වගකීම් සහ සහාය

Extech Instruments provides a warranty for this product against defects in materials and workmanship. Specific warranty terms and duration may vary by region and purchase date. Please refer to the warranty card included with your product or visit the official Extech webසවිස්තරාත්මක වගකීම් තොරතුරු සඳහා අඩවිය.

For technical support, service, or replacement parts, please contact Extech Customer Service. Contact information can typically be found on the Extech webවෙබ් අඩවියේ හෝ ඔබේ නිෂ්පාදනය සමඟ ඇති ලියකියවිලිවල.