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captured in the say way as in standard Hold mode. The difference is that the captured
reading, displayed on the smaller, secondary display digits, will update whenever a reading 50
digits higher or lower than the captured reading is measured. To exit the Auto-Hold mode
press the HOLD button.
5.6 Voltage Measurements
1. Set the function switch to the
2. Insert the black probe lead into the COM terminal and red probe lead into the V terminal.
3. Use the MODE button to select AC or DC voltage measurements.
• The
indicator will be displayed for AC measurements.
• The
indicator will be displayed for DC measurements.
4. Connect the probe leads in parallel to the part under test
5. Read the voltage value on the display
5.7 Insulation Resistance Measurements
1. Use the rotary switch to select the insulation voltage (50V, 100V, 250V, 500V, or 1kV).
2. Insert the black probe lead into the COM terminal and red probe lead into the Insulation
terminal.
3. Select INSUL to enable the Insulation Resistance Function mode as described in section 5.12.1
Selecting modes.
4. During the Test, the insulation voltage will appear in the secondary (upper) reading area. The
resistance will be shown in the main reading area.
5. Press TEST OK to start test.
6. To lock the test for continuous testing, press the HOLD/LOCK button (lock icon will appear) and
then press TEST OK to test continuously.
7. The TEST icon on the LCD will be shown while the voltage is outputted.
8. Press TEST OK again to stop the test
NOTE: The 99-point Data Record memory function cannot be activated in the usual way while
using the Insulation Resistance function (since the TEST OK button is used for testing in this
case and not for saving readings). The last reading, however, is held on the display and can then
be saved in the normal way as described in the Extended Functionality section below under
Section 5.12.7 Data Record Mode.
5.7.1 PI/DAR Test
Note: PI (Polarization Index); DAR (Dielectric Absorption Ratio)
1.
Select the PI or DAR test as described in section 5.12.1 Selecting modes.
2.
Press the TEST OK button to test.
Press the MODE button to show the test time at the upper reading area. (LCD will show
3.
CLOCK icon and the elapsed time). PI is a ten-minute test and DAR is a one-minute test.
4.
The test will stop automatically, and the result (ratio) will be shown on the main display
area. The PASS/FAIL LED will indicate the test result (Green for PASS, and Red for FAIL).
FLIR IM75-2 USER MANUAL
position.
15
IM75-2-UM_en-US Rev AA
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