Final commissioning, Save these instructions – King Electric SCM User Manual
Page 18
18
Commissioning
Important
For the extended limited warranty to apply, you must perform these tests, record the results on the SC / SCM Testing Log, and retain
a copy of the record.
Insulation Resistance Test with a megohmeter
This test ensures that the insulating jackets of the cable are not damaged. A low value indicates the cable has been damaged and must be
replaced. A megohmeter adjusted to a minimum 1000 VDC should give a measured value at least 20 megohm (M
Ω).
Megohmeters apply high voltage and could shock or cause serious injury if improperly used. Follow megohmeter instructions
for safe and proper use.
• Connect the ground wire to the black lead and both power wires to the red lead of the megohmeter.
• Adjust the megohmeter to a minimum 1000 VDC.
• Make sure the megohmeter reads at least 20 megohm (M
Ω). If you get a different reading, contact the factory.
Record these readings on the SC / SCM Testing Log under section “Record 4: Final Commissioning”.
Insulation Resistance Test with a digital multi-meter
This test ensures that the insulating jackets of the mat are not damaged. A low value indicates the cable has been damaged and must be re-
placed.
• Connect the ground wire to the black lead and both power wires to the red lead of the multi-meter.
• Make sure the meter reads “Open” or “OL” or whatever your meter shows when the test leads are not touching anything. If you get a differ-
ent reading, contact the factory.
• Record these readings on the SC / SCM Testing Log under section “Record 4: Final Commissioning”.
Heating Cable Resistance Test
This test measures the resistance of the SC Cable . SCM Mat and is used to determine circuit integrity.
Set your multimeter to the 200 or 2000 ohm range.
Connect the multimeter leads to the black and white cold lead wires.
Compare this resistance reading to the resistance specified in the Product Selection “Table 1 or Table 2”. The value should be within
±10%. If you get a different reading, contact the factory.
Record these readings on the SC / SCM Testing Log under section “Record 4: Final Commissioning”.
SAVE THESE INSTRUCTIONS
FINAL COMMISSIONING
KING ELECTRIC MFG CO · 9131 10TH AVENUE SOUTH · SEATTLE, WA 98108 · PH:206 762 0400 · FAX: 206 763 7738 · www.king-electric.com
!
WARNING