The Michell range of dew-point generators provides flexibility and control at a competitive price. Based on the volumetric mixing of dry and wet gases, the instruments can be controlled either manually or automatically to suit a wide range of calibration applications.
For a complete dew-point calibration system with optional compressor, dryer, dew-point generator and cooled mirror reference instrument refer to DCS System page.
The DG3 is our entry-level, single-stage mixing humidity generator. It is operated by manually mixing the two gas streams using flow control valves. The DG3 provides flows up to 5 Nl/min (10.6 scfh) and generates dew points ranging from -40 to +20°Cdp (-40 to +68°Fdp).
The DG2 has two stages of gas-flow mixing which allow it to generate dew points down to -75°Cdp (-103°Fdp). The great strengths of the DG2 are its ease of use and its flexibility in manually generating an accurate target dew point by fine tuning the gas mix via its flow metering valves. Infinite mixing is achievable within its working range.
The ADG400 is a two-stage dew-point generator which operates in the range of -80...+20 °Cdp (-112...+68 °Fdp). It features a touchscreen HMI, which allows the user to set the desired dew point, or create and run an automated calibration profile. The generator can also be operated remotely and integrated into customer software via the USB interface.
The generator is delivered with an 11-point factory calibration at 10°C intervals across its range, and has a 13-point user calibration table allowing custom set points to be defined.
The VDS3 is a sophisticated computer-controlled dew-point generator that operates in the range of -100...+20 °Cdp (-148...+68 °Fdp). Individual three-stage mass flow controllers select precise proportions of wet and pre-mixed air. Humidity injection is achieved by a liquid mass flow controller and controlled evaporation system. The Vapor Delivery System (VDS) gives repeatable and flexible control of the generated dew point and can be programmed with up to 13 pre-sets that can be activated manually or as part of an automatic calibration program.
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