PAM420 - Measurement Megger - Free user manual and instructions
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| Product Type | Portable Power Quality Analyzer |
| Brand | Megger |
| Model | PAM420 |
| Dimensions (H x W x D) | 250 x 180 x 60 mm |
| Weight | 1.5 kg (3.3 lb) |
| Power Supply | Rechargeable Li-ion battery, 7.2 V, 4.4 Ah; AC adapter 100-240 V |
| Battery Life | Up to 8 hours continuous operation |
| Voltage Measurement | 0 to 1000 V AC/DC, CAT IV |
| Current Measurement | Via clamp-on current probes (optional), up to 3000 A |
| Frequency Range | 45 to 65 Hz |
| Harmonics | Up to 50th harmonic |
| Power Parameters | Active, reactive, apparent power; power factor; energy |
| Transient Capture | Yes, up to 6 kV peak |
| Data Storage | Internal memory for up to 100 events; USB and SD card export |
| Display | Color TFT LCD, 5.7 inch |
| Languages | English, French, German, Spanish |
| Safety Rating | CAT IV 600 V, CAT III 1000 V |
| Protection | IP54 (dust and splash water) |
| Standard Accessories | Test leads, alligator clips, AC adapter, USB cable, shoulder strap, carrying case |
| Optional Accessories | Flexible current probes, temperature probe, software |
| Maintenance | Clean with dry cloth; calibrate annually |
| Reparability | Spare parts available; service centers worldwide |
Frequently Asked Questions - PAM420 Megger
How do I connect the PAM420 for a standard voltage measurement?
Use the provided test leads: connect the black lead to the COM terminal and the red lead to the V terminal. Select the voltage function using the rotary switch. Ensure the range is set correctly (up to 1000 V).
Can I measure current with the PAM420?
Yes, but you need an optional current probe (clamp). Connect the probe to the instrument, select the current function, and clamp around the conductor. The PAM420 supports up to 3000 A with appropriate probes.
How do I capture a transient event?
Set the instrument to transient capture mode. Adjust the threshold level (default 500 V). The PAM420 will automatically record transients exceeding the threshold. Stored events can be viewed on the screen or exported via USB.
How do I recharge the battery?
Connect the provided AC adapter to the PAM420's power input and to a mains outlet (100-240 V). The battery charges fully in about 4 hours. A full charge lasts up to 8 hours of typical use.
Can I export data to a computer?
Yes, use the USB port on the side. Connect to a PC with the provided cable. The PAM420 appears as a removable drive. You can copy recorded files (CSV format) directly. Alternatively, use an SD card (FAT32) inserted into the slot.
What is the recommended calibration interval?
Megger recommends annual calibration to ensure accuracy. Contact an authorized service center for calibration. The instrument can be used within specifications for up to one year from last calibration.
How do I clean the PAM420?
Turn off the device and disconnect all leads. Use a soft, dry cloth to wipe the exterior. Do not use solvents or abrasive cleaners. For the display, use a microfiber cloth gently. Keep the terminal sockets dry and clean.
What safety precautions should I take?
Always follow local safety regulations. Use the PAM420 only on circuits up to CAT IV 600 V or CAT III 1000 V. Inspect test leads for damage before use. Do not use in wet conditions. Wear appropriate PPE (gloves, glasses).
Where can I find spare parts or accessories?
Authorized Megger distributors and online store offer spare parts like test leads, probes, batteries, and adapters. Visit www.megger.com and enter your region for local suppliers. Use only original Megger accessories to maintain safety and accuracy.
How do I interpret the harmonics display?
The PAM420 shows harmonic spectrum up to the 50th. Use the cursor keys to scroll through harmonics. The bar graph displays magnitude as percentage of fundamental. You can also view THD (Total Harmonic Distortion) on the summary screen.
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USER MANUAL PAM420 Megger
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Product information
Brand : Megger
Model : PAM420
Category : Measurement