Features a NEMA 4 or 4X Powder Coated or Stainless Steel Enclosure
CSA Certified and FM Approved
Nelson's CM‑1 Series continually monitors the supply voltage and current of both series and parallel styles of electric heat tracing cables and panels. When used in conjunction with ground fault branch breakers, the CM‑1 also serves as an automatic alarm system when the heating system is de‑energized due to a tripped breaker. Continuity monitoring for parallel‑resistance heating cables can be enabled by adding a passive bus monitor device at the end of each heater circuit. The microprocessor‑based scanner systematically compares programmed values with actual data from sensor cards capable of monitoring up to 4 circuits each. The status of each circuit is displayed using high‑visibility LEDs. Multiple CM‑1 systems throughout a facility can also be connected to a central PC to provide centralized alarm status and acknowledgement.
