January 2, 2014. The 5R7-570(A) RoHS compliant open-board electronic temperature controller is designed with a proportional integral control algorithm to provide precise control to thermoelectric (Peltier-effect) modules. The H-bridge temperature-control function provides a seamless transition between heating and cooling, eliminating dead spots. A green LED for heat and blue LED for cooling indicate mode, and simultaneous illumination indicates the load circuit is off due to an open sensor. Pulse-width modulation controls the power level in the thermoelectric module at a base frequency of 1 kHz. Power resolution is one of ±250 steps. The temperature controller measures 1.75″ x 3.5″ x 3″ with input voltage range of 6 to 28 VDC and output voltage range of 0 to 36 VDC. Load current is 0.1 to 12.5 A (450 W), control stability is ± 0.1°C, and temperature range is -20 to 150°C. The controller is PC-programmable and features an RS-232 port. www.ovenind.com/bv/Products/5R7-570-Electronic-Temperature-Controller__5R7-570.aspx
