Fluke Biomedical 601PRO XL - Manual (Page 60)

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Shortcut Key 3: Protective Earth Resistance Test
Protective Earth Resistance is measured using the RED test lead attached to the DUT
Protective Earth terminal or enclosure. Select the test current by pressing SOFT KEY
3 to toggle between 1AMP, 10AMP, and 25AMP . The front panel outlet power is
turned off for this test. The following conditions apply:
• L1 and L2 Open
☛ Note: Calibrate the test leads if performing a protective earth resistance test for
the first time with a unit or when using a new set of leads. Also calibrate
the leads if the unit does not read zero when the test lead is connected
between the RED and GREEN input jacks and a measurement is taken.
It is recommended that calibration be performed at 1 and 25 Amps.
☛ Note: Only use Fluke Biomedical-supplied test leads (PN 2213252 or
2391723), or leads rated for 32 Amps/1000 Volts with the Protective
Earth Resistance Test.
To calibrate the test leads:
• First select the test current that will be used for performing the Protective Earth
Resistance test by pressing AMPERES (SOFT KEY 3) .
• Connect the test lead(s) between the RED input jack and the GREEN input jack.
• Press
CAL LEADS . The 601PRO will measure the lead resistance, and if less
than 0.150 Ohms, it will store the reading and subtract it from all earth resistance
readings taken at the calibrated current.
baw052f.eps
If the leads have too much resistance (higher than 0.150 Ohms) or are not properly
attached, the following Calibration screen will appear:
baw053f.eps