Illinois Instruments' Series 400 Moisture/Dew Point Hygrometers represent our latest advancement in moisture analysis. This series was designed to be customized to your application while providing a simple, yet affordable analyzer.  The Series 400 Hygrometers incorporate our high quality aluminum oxide moisture sensor. This sensor provides accurate, dependable results over a wide range from –110°C to +20°C. The aluminum oxide sensor is maintenance-free and is the popular choice for the most demanding applications.

All models feature microprocessor control for stable and repeatable operation. A bright, autoranging LED display provides direct measurement output. User-adjustable alarms, scaleable analog output signals, RS232 interfacing, and process sample bypass flow systems are all optionally available.

Three different configurations add to the base Model 410 (shown at right) to offer the choices needed to satisfy virtually all industrial environment and operational constraints.
 

Model 410 can be used on the bench or Panel Mounted.	Model 420 is NEMA 4X / IP66 rated for weatherproof and waterproof locations.	Model 430 houses one or two analyzers in its 4U (19 inch) rack mount cabinet.

Features:

	RS232/485 outputs
	°C, °F, and ppmv units
	Calibration traceable to NIST
	Remote sensors available
	Fast response and recovery from saturation

Applications:

	Industrial Specialty Gases
	Heat Treating Furnaces
	Air Dryers
	Natural Gas
	Compressed Air
	Metallurgy
	Chemical Manufacturing
	Plastics Manufacturing
	Inert Atmosphere Blanketing