Druck Environment Monitoring Equipment

Laboratory Environment Monitor

The Laboratory Environment Monitor (LEM) provides the ability to measure barometric pressure, ambient temperature, and relative humidity. The LEM also provides air density measurement a critical factor for mass calibration labs to correct for air buoyancy effects. The LEM transmits these measurements via an RS-232 or RS-485 interface to a PC. The supplied software can then be used to monitor and log all the above parameters for one, or up to eight LEM’s, simultaneously. The LEM provides a modern, electronic device to log this information to a standardized file format for easy retrieval and analysis. The LEM is an ideal replacement to older data loggers such as mechanical strip chart recorders.

The supplied software allows the LEM to be used as a stand alone instrument and performs a variety of functions, including various units selection, as well as data logging. The software includes options for logging in intervals of 1 minute, 5 minutes or 15 minutes. The space delimited text file keeps file sizes small, while allowing easy insertion into spreadsheet applications for data analysis and graphing. 

Annual recalibration of the LEM is accomplished through the supplied software. Once calibrated, the new coefficients are downloaded to the LEM and stored in non-volatile memory. The LEM is compatible with Ruska’s Model 2456 Piston Gauge Monitor (PGM) and WinPrompt® software which automates the operation of Ruska’s extensive line of primary pressure standards. The LEM allows WinPrompt® to automatically compensate for air buoyancy effects on the mass set of the piston gauge. The LEM is also compatible with the Model 2465 Autofloat Gas Piston Gauge.