The Model 44C temperature controller is designed for use as a general purpose cryogenic instrument with extended operation into the ultra-low (>1K) temperature range. Additionally, it provides an interface to control external equipment including cryocoolers and most refrigerator systems, offering a complete 'one box' solution in many applications.
The Model 44C provides four sensor inputs, each of which support wide range of temperature measurements by use of a ratiometric AC resistance bridge. This is extended into general purpose applications by supporting a DC mode for diode type sensors.
Three control loop outputs feature power levels as high as 50W and as low as 50mW in order to support both high and ultra-low temperature operation. All control modes are supported by all outputs.
The 44C front panel incorporates a high resolution graphics TFT type Liquid Crystal Display with an exceptionally wide viewing angle. With it's bright white LED backlight, complete instrument status can be seen at a glance, even from across the room.
Standard remote interfaces include 100/10 Ethernet and RS-232. IEEE-488(GPIB) and USB are optional.