The DigiTrace 910 is a compact, full-featured, microprocessor-based, single-point heat-tracing control system. The 910 provides control and monitoring of electrical heat-tracing circuits for both freeze protection and temperature maintenance and can be set to monitor and alarm for high and low temperature, high and low current, ground- fault level and voltage. The DigiTrace 910 measures temperature with one or two 3-wire 100-ohm platinum RTD(s) connected directly to the unit. The controller may be used in line-sensing, ambient sensing, proportional ambient-sensing and power-limiting modes. A variety of parameters are measured, including ground fault, temperature and current to ensure system integrity. The system can be set to periodically check the heating cable for faults, alerting maintenance personnel of a heat-tracing problem.
