Operation; Performing Measurements - AEMC 5070 User Manual

6.1 Performing Measurements

To begin an insulation resistance test, first insert the cables as necessary, then
turn the rotary switch to the appropriate test voltage position.
The instrument can measure insulation values from 10kΩ to 10TΩ, depending on
the test voltage selected-from 40V to 5100V
The screen displays:
• The battery symbol and battery charge
condition
• The test voltage selected
• The voltage, frequency and residual
current at the input terminals
• The date and time
Connect the Red (+) and the Black (-) cables to the test object. Connect the Blue
Guard jumper and cable, if required for the test (see Appendix A "When to use the
Guard Terminal").
Next, (unless the step function mode is selected) select the measurement mode
to be used (Manual Stop, Manual Stop +DD, Timed Run, Timed Run +DD, DAR or
PI) by pressing the MODE button (see § 4.2.1)
• Press the START/STOP button to begin the measurement test.
If the voltage present is greater than the maximum allowed value, the
measurement will be prohibited.
The DISPLAY button can be used to scroll through the information available during
the test.
This information depends on the measurement mode selected (see § 4.2.1).
If the insulation values displayed are very unstable, a digital filter can be activated
by pressing SMOOTH to smooth them (see § 4.5.2).
Megohmmeter Model 5070
CHAPTER 6

OPERATION

NOTE: Charge the instrument fully before use.
.
DC
FIXED VOLTAGE
2500 V
Input voltage
Frequency
Input current
Date: 09.28.2003
230V AC
50.0 Hz
24.6nA
Time: 22:39
59