The THERMOSAFE heats by induction and therefore has no heating elements, the maximum temperature is self-limiting. In the vast majority of applications additional control is not required. If temperature control is necessary, a number of options are available:
BF400 Power Controller – Low cost solution for most installations
Uniquely designed for use with the THERMOSAFE heater. Open loop control that is simple to install and use, ideal for most applications where a drum needs to be maintained at an operational temperature for a period of time.
Burst firing controller enabling adjustment of heater output (0-100%). Selecting 50% will ensure the heater is on for 50% of the time (eg. on for 30 seconds and off for 30 seconds), therefore reducing the maximum drum temperature. Near zero-crossing switching minimizes supply disturbance. Integrated 25A mcb for circuit protection.
Whilst the BF400 must be situated in a safe area, (usually in the room where fuses and switchgear are located) the THERMOSAFE heater can still be operated in a hazardous area. The standard supply cable length is 5m, but a longer cable can be fitted on request if the safe area is further away.
ATEX Certified Temperature Controller – Comprehensive solution for hazardous areas
Comprehensive ATEX approved closed loop controller facilitating all likely combinations of temperature and power control. Features digital on-off temperature control, over temperature shut off (temperature set by manufacturer), relay temperature alarm and a full wave power controller with zero crossing switching.
Supplied as a kit of parts for the customer to assemble, including
2 x 3m PT100 magnetic temperature sensors to be placed on drum wall and ATEX cable glands / blanking plugs.
Simple adjustment of temperature set point by removing enclosure lid. (while in safe area)
Can be installed in ATEX zones 1 and 2
Ex II 2 G D Ex e ib [ib Gb] mb IIC T4 Ex tb IIIC IP 6X T90°C Db
These control options may also be suitable for other products, contact us for more information.