The bidirectional or unidirectional H-bridge configuration of the temperature controller allows seamless transitions between heating and cooling as it commands the thermoelectric modules. The included user-friendly PC software allows users to change control configurations through the RS232 or RS485 interface, which has 1500 VAC isolation from the electronic circuitry to eliminate interference from noise or errant signals. Once the temperature controller is setup, the computer may be disconnected, and the temperature controller becomes a standalone unit. The computer can remain connected for data acquisition. The load circuit is pulse-width modulated at 2.7 KHz and delivers a load current of 0.1 to 25 A.

Oven Industries Inc.