Produktua amaituview
The Extech MG320 is a versatile instrument combining a portable 20GΩ/1000V insulation tester with a True RMS multimeter. It is designed for professionals needing to perform insulation resistance measurements and general electrical troubleshooting.
Key features include Polarization Index (PI) and Dielectric Absorption Ratio (DAR) modes, a programmable timer for test duration, and a comparator function for setting custom pass/fail criteria. The device offers 5 test voltage ranges and includes high voltage and overload indication for safety. It is rated CAT IV 600V for enhanced safety.
The MG320 allows for manual storage and recall of up to 99 readings, making it suitable for field use where data logging is required. It comes complete with test leads, an alligator clip, 6 AA batteries, and a soft carrying case.
1. irudia: Aurrealdea view of the Extech MG320 Insulation Tester, showing the display, function dial, and input terminals.
Segurtasun Informazioa
Always adhere to local and national safety codes. Use personal protective equipment (PPE) as required. Ensure the device is in good working condition before use. Do not attempt to measure voltagZehaztutako gehienezko balorazioak gainditzen dituzten korronteak edo korronteak.
- CAT IV 600V Safety Rating: This instrument is designed for measurements at the source of the low-voltagInstalazioa, hala nola elektrizitate-kontagailuak eta gainkorrontearen babeserako gailu nagusiak.
- Inspect test leads for damage before each use.
- Ez erabili neurgailua hondatuta dagoela dirudienez edo kaxa irekita badago.
- Always disconnect power to the circuit under test before making connections for resistance or continuity measurements.
- Kontuan izan bolumen handikoaztage during insulation tests.
Konfigurazioa
Bateriaren instalazioa
The Extech MG320 requires 6 AA batteries for operation. To install or replace batteries:
- Ziurtatu neurgailua itzalita dagoela.
- Aurkitu bateriaren konpartimentua unitatearen atzealdean.
- Erabili bihurkin bat bateriaren konpartimentuaren estalkia irekitzeko.
- Insert 6 AA batteries, observing correct polarity (+/-).
- Jarri bateriaren konpartimenduaren estalkia eta lotu torlojuarekin.
Probako puntak konektatzen
Connect the red test lead to the VΩ input terminal and the black test lead to the COM input terminal for most measurements. For insulation tests, connect the red lead to the V INSULATION terminal and the black lead to the EARTH terminal.
Funtzionamendu-argibideak
Isolamendu Erresistentzia Neurketa
The MG320 offers 5 test voltage ranges for insulation resistance. Always ensure the circuit under test is de-energized before performing insulation tests.
- Turn the rotary switch to one of the INSULATION TEST voltage ranges (50V, 100V, 250V, 500V, 1000V).
- Connect the test leads to the circuit or component to be tested.
- Sakatu PROBA button to initiate the insulation test. The display will show the resistance value.
- Askatu PROBA button to stop the test.
True RMS Multimeter Functions
The MG320 also functions as a True RMS multimeter for various electrical measurements.
- liburukiatage Neurketa (AC/DC): Turn the rotary switch to the V~ (AC) or V- (DC) position. Connect test leads in parallel with the circuit.
- Erresistentziaren neurketa (Ω): Turn the rotary switch to the Ω position. Ensure the circuit is de-energized. Connect test leads across the component.
- Jarraitasun proba: Turn the rotary switch to the continuity position. A built-in buzzer will sound if continuity is detected.
Figure 2: An electrician using the Extech MG320 to perform measurements within an electrical panel, demonstrating its application in industrial settings.
Figure 3: A technician conducting tests on industrial piping using the Extech MG320, highlighting its use in maintenance and troubleshooting.
Mantentzea
Garbiketa
Wipe the meter with a dry, clean cloth. Do not use abrasives or solvents. Keep the display clean for optimal readability.
Bateria ordezkatzea
Replace batteries when the low battery indicator appears on the display to ensure accurate measurements. Refer to the "Battery Installation" section under Setup for detailed instructions.
Biltegiratzea
If the meter is not used for an extended period, remove the batteries to prevent leakage and damage. Store the device in a cool, dry place, away from direct sunlight and extreme temperatures.
Arazoak konpontzea
| Arazoa | Kausa posiblea | Irtenbidea |
|---|---|---|
| Neurgailua ez da pizten. | Bateriak hilda edo gaizki instalatuta. | Egiaztatu bateriaren polaritatea; ordezkatu bateriak. |
| Irakurketa okerrak. | Low battery, incorrect function selected, damaged test leads. | Replace batteries, verify function setting, inspect and replace test leads if damaged. |
| "OL" or Overload displayed. | Measurement exceeds the meter’s range. | Select a higher range or ensure the measurement is within the meter’s capabilities. |
Zehaztapenak
| Zehaztapena | Xehetasuna |
|---|---|
| Marka | Extech |
| Eredua | MG320 |
| Isolamendu Erresistentzia Gama | Up to 20 GΩ |
| Test Voltages | 50V, 100V, 250V, 500V, 1000V |
| Multimetro mota | Egiazko RMS |
| Segurtasun Balorazioa | CAT IV 600V |
| Energia iturria | 6 x AA pila (barne) |
| Elementuaren pisua | 1.2 libra (gutxi gorabehera 0.54 kg) |
| Neurriak (L x W x H) | 4 x 9 x 2.5 hazbete (gutxi gorabehera 10.16 x 22.86 x 6.35 cm) |
| Dakarten osagaiak | Test leads, alligator clip, 6 AA batteries, soft case |
Bermea eta Laguntza
For warranty information and technical support, please refer to the official Extech website or contact Extech customer service directly. Keep your purchase receipt as proof of purchase for warranty claims.
Extech Contact Information:
- Webgunea: www.extech.com
- Laguntza: Ikusi webeskualdeko laguntza-kontaktuen gunea.
