Dynacalibrator Model 150 constant-temperature system

The Dynacalibrator Model 150 is a constant-temperature system designed to generate precise ppm or ppb concentrations of chemical compounds in a gas stream, using permeation devices as the trace gas source. It is used as a reference for the calibration of gas chromatography instruments and in other instruments that measure gas concentrations. This lightweight, compact unit is capable of delivering the precise concentrations required. A passivated inertium-coated stainless steel permeation chamber houses the permeation device(s), with measured inert carrier gas sweeping the calibration gas/vapor from the chamber. The digital temperature controller maintains the chamber temperature at a setpoint with an accuracy of ±0.01°C, traceable to NIST standards. The wide range of temperature settings (5°C above ambient to 110°C) means the end user can generate a wide range of volumetric concentrations for both low- and high-vapor-pressure chemical compounds, establishing or changing the desired volumetric concentration by varying the carrier flow. Reduced flow path volume permits low concentration generation of mercury, water and other difficult-to-work-with materials. Users have a choice of plumbing and flow configurations. This unit permits remote control via RS 232 cable.