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INSULATION & RESISTANCE TESTING/MAT RESISTANCE LOG
Note: RAYCHEM Mat must be tested before, during and after installation to validate the warranty.
Insulation Test
To ensure the heating wire is fully insulated:
1 .
With a digital multimeter, set it to measure resistance/ohms. If using an ohmmeter, set it to the 200 ohm setting.
2 .
Place one multimeter clip on the metal braid wire (ground) . Place the other multimeter clip on the blue wire .
3 .
Confirm the reading on the multimeter/ohmmeter is OL or infinity (open circuit).
4 .
Repeat steps 2-3 to check the reading between the metal braid wire (ground) and the other wire (brown) .
If insulation test readings do not pass requirements at any point of the installation, halt installation immediately and
contact 0800 96 90 13 or email salesthermalUK@nvent.com .
Resistance Test
To ensure continuity of the heating wire:
1 .
With a digital multimeter, set it to measure resistance/ohms. If using an ohmmeter, set it to the 200 ohm setting.
2 .
Place one multimeter clip on the blue wire . Place the other multimeter clip on the brown wire .
3 .
Confirm the reading on the multimeter/ohmmeter is within +10% / –5% of the factory resistance reading listed on the
white tag that is attached to the power lead . The white tag contains information including factory resistance readings,
model number, manufacture date and amperage ratings .
4 .
Record the resistance test readings in the table below .
5 .
If resistance test readings do not pass requirements at any point of the installation, halt installation immediately
and contact 0800 96 90 13 or email salesthermalUK@nvent.com . For warranty and troubleshooting purposes, the
resistance table must be completed and remain with the end user .
Mat Model Number
Factory Measured Resistance
Resistance Test Ohms Reading (Test #1 - Before Installation)
Resistance Test Ohms Reading (Test #2 - During Installation)
Resistance Test Ohms Reading (Test #3 - Post Installation)
MAT RESISTANCE LOG
nVent.com | 11
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