The Model E4 is a general purpose chilled mirror dew/frost point hygrometer which provides optional temperature, relative humidity, and pressure measurements. Housed in a rugged, moisture and dust resistant NEMA-12 enclosure, the Model E4 provides accurate measurement in a wide variety of demanding applications.

The basic model, Model E4-DP, measures dew/frost point. Two addition models are available: the Model E4-RH and the E4-PR. Both have dual analog outputs, an assignable alarm relay, and the option of one of two displays. The Model E4-RH measures temperature and dew point, and calculates % RH. All three parameters can be displayed or output. The Model E4-PR measures pressure and dew point, and calculates ppmv, grains per pound, and other parameters.

The Model E4 can be mated with any one of five Chilled Mirror sensors to provide an overall measurement range from -80º to +85ºC (-112º to 185ºF) dew/frost point.

To reduce contamination-induced error, the Model E4 uses advanced microprocessor control and General Eastern's patented PACER™ circuitry. The PACER™ circuitry provides long, unattended operation with minimal maintenance.

The E4 provides many useful standard features including user selectable ºC and ºF readout, 4-20mA and 0-5 VDC analog outputs, and RS-232 digital output. The RS-232 port allows the scaling of analog outputs, and provides direct communications with a host computer.

Applications

• Thermal Processing / Heat Treating
• Process Control
• Semiconductor Manufacturing
• Clean Rooms
• Storage Areas