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Max HT Air Heaters
The TUTCO SureHeat Max HT provides a compact and efficient high temperature solution for applications up to 1652°F (900°C). The Max HT offers accurate control with a minimum airflow of 18 SCFM. A dual probe type K thermocouple with a convenient terminal block is included for ease of wiring. Each exposed thermocouple probe is used to measure inlet and exit air temperature. One is typically used for process temperature control and the other to monitor the high temperature limit. Each heater has a convenient method for mounting and offers a ground stud for safe operation.
Product Specs
Overall Length........................................................................24" (609.6mm)
Minimum Airflow for Accurate Control...........................................18 SCFM
Maximum Air Temperature...................................................1652ºF (900ºC)
Max Inlet Temperature............................................................200ºF (760ºC)
Info
- Small size – 4” diameter body
- Threaded inlet and exit ports for convenient air connections
- High temperature plastic wiring enclosure with built in connections
- Rugged stainless steel heater body
- Stainless steel mounting base
- Built in type K thermocouples
- Exposed wire low mass element for fast heat up/cool down
- Rated for pressures up to 60 PSI (4 bar)
- Available in a range of wattages, voltages up to 36 KW, 480 Volt, single or three phase
- UL Recognized, RoHS, CE
Resources
Additional Info
Closed-Loop (Feedback) Control
Closed-loop heater control systems use a power controller, temperature controller and thermocouple to monitor and provide a constant output temperature, regardless of changes in airflow. The typical temperature controller provides a convenient display of the air temperature. (not the element temperature)
Power Controller
SCR (Silicon Controlled Rectifier) power controls will provide the smoothest power regulation for electric air heaters. Please contact Tutco SureHeat before using other power controllers, such as SSR (Solid State Relays) or other fast-switching controllers.
Temperature Controller
Use only digital temperature controls with Type K thermocouple inputs. The temperature control output must match the input of the power control (i.e., 4-20mA or 0-10VDC). A standard PID-type control with a wide proportional band setting will work best to minimize temperature overshoot. PID parameters may be auto-tuned, but only at temperature specifications below the maximum of the heater. Monitor the heater temperature rise and turn power off immediately if it rises above the heater specification during the auto-tune cycle. Thermocouple Use only a fine wire (0.030” max. wire diameter), exposed junction, Type K thermocouple placed within 1” of the heater exit for accurate temperature readings. Other thermocouple styles, or varying the distance from the heater exit, will result in temperature measurement errors and thus the potential for heater failure
