Extech Instruments 420 Operation & User’s Manual

Operation & User’s Manual for Extech Instruments 420 Multimeter (16 pages)

Specifications:

240/240688-420.pdf file (26 Oct 2023)
  • Manufacturer: Extech Instruments
  • Category of Device: Multimeter
  • Document: 420, File Type: PDF Operation & User’s Manual
  • Updated: 26-10-2023
  • Count of Pages: 16
Download 420 Manual (16 pages)

Read PDF Document Online:

Data: UPD 26th October 2023

Extech Instruments 420 Multimeter PDF Operation & User’s Manual (Updated: Thursday 26th of October 2023 09:55:09 AM)

Rating: 4.3 (rated by 52 users)

Compatible devices: EX542, 382075, 401025, BT100, EA30, 430, MG300, EX810.

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Text Version of Extech Instruments 420 Multimeter Manual (Summary of Contents)

(Ocr-Read of Extech Instruments 420 Document (Main Content), UPD: 26 October 2023)

  • 6, Extech Instruments 420 EX420-EU_ENG V3.1 6/09 6 Operating Instructions WARNING: Risk of electrocution. High-voltage circuits, both AC and DC, are very dangerous and should be measured with great care. 1. ALWAYS turn the function switch to the OFF position when the meter is not in use. 2. If “OL” appears in the di…

  • 7, EX420-EU_ENG V3.1 6/09 7 AC VOLTAGE MEASUREMENTS WARNING: Risk of Electrocution. The probe tips may not be long enough to contact the live parts inside some 240V outlets for appliances because the contacts are recessed deep in the outlets. As a result, the reading may show 0 volts …

  • 16, EX420-EU_ENG V3.1 6/09 16 REPLACING THE FUSES WARNING: To avoid electrical shock, disconnect the meter from any circuit, remove the test leads from the input terminals, and turn OFF the meter before opening the case. Do not operate the meter with an open case. 1. Disconnect the test leads from…

  • 14, EX420-EU_ENG V3.1 6/09 14 Function Range Resolution Accuracy Frequency 5.000Hz 0.001Hz (1.5% reading + 5 digits) 50.00Hz 0.01Hz 500.0Hz 0.1Hz (1.2% reading + 2 digits) 5.000kHz 0.001kHz 50.00kHz 0.01kHz 500.0kHz 0.1kHz 5.000MHz 0.001MHz (1.5% reading + 4 digits) 10.00MHz 0.…

  • 11, EX420-EU_ENG V3.1 6/09 11 CONTACT TEMPERATURE MEASUREMENTS 1. Set the function switch to the black Type K ºC or ºF position. 2. Insert the Temperature Probe into the input jacks, making sure to observe the correct polarity. 3. Touch the Temperature Probe head to the part whose temperature you wi…

  • 3, EX420-EU_ENG V3.1 6/09 3 CAUTIONS Improper use of this meter can cause damage, shock, injury or death. Read and understand this user manual before operating the meter. Always remove the test leads before replacing the battery or fuses. Inspect the condition of the test leads and the m…

DOC-178af083:

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