Amprobe MEGATEST-5000 Megohmmeter - Manual (Page 23)

This measurement can be employed by manufacturers of electrical equipment to check
materials, such as supports for conductors, components and equipment.
• Connect the test leads to the material being tested, placing them at the distance to be
verified and making sure there is proper contact.
• Pre-set configurations can be used. For example, use the up or down arrow keys to
select P20: this will set a measurement of 2500 V for 10’.
• Should you intend to perform tests using other parameters, choose the appropriate
settings (ref. chapter 4.5).
• Press START, wait until the measuring is over and make sure the value measured is
consistent with what you requested.
• If necessary, save the measurement you performed by pressing the SAVE key (ref.
chapter 4.7).
4.6.4 Estimating the insulating strength
MEGA EST
T
5000
Insulating
Material
This measurement can be employed by manufacturers of electrical equipment to check
materials for example for making supports for conductors, components and equipment.
• Connect the test leads to the material being tested, placing them at the distance to be
verified and making sure there is proper contact.
• Pre-set configurations can be used. For example, use the up or down arrow keys to
select P21: this will set a measurement of 5000 V for 2’ (minutes) with a ramp increase.
• Should you intend to perform tests using other parameters, choose the appropriate
settings (ref. chapter 4.5).
• Press START and observe the value of the resistance during the test.
• Stop the test manually (STOP key) as soon as the resistance starts to diminish or as
soon as there is a discharge. The voltage reached before stopping the test is the
maximum applicable voltage, and a reasonable safety margin should be kept
compared to it.
• If necessary, save the measurement you performed by pressing the SAVE key (ref.
chapter 4.7).
• If you want, you can proceed to test the efficiency of the insulator.
-21-