Summary of Contents for Digi-Sense 20250-41
- Page 1 User Manual Temperature and Temperature/RH Data Loggers with USB Interface Models 20250-41, -42, -43, -44 THE STANDARD IN PRECISION MEASUREMENT 1.800.561.8187 information@itm.com www. .com...
- Page 2 Introduction The Digi-Sense USB Data Logger measures ambient temperature and records up to 32,000 readings). Models 20250-42 and 20250-43 also measure relative humidity. Program sampling rate, high/low alarm levels, and start mode using the provided software. Download tion logged data via the integrated USB interface for analysis, graphing, and documentation.
- Page 3 Setup and Operation 1. Insert the software CD into the PC. Double click the set up.exe file to launch the software installation program. 2. Follow the installation wizard to complete installation; when complete, the “Datalogger” software icon shortcut will be automatically placed on the PC desktop. 3.
- Page 4 Software Setup and Operation Installation Open Function Click on it to open previously logged data 1. Insert the supplied data logging software file for viewing or further analysis. When CD into the PC. selected, the open screen will list data files 2.
- Page 5 Operating Mode Settings Data logger has two operational settings Enable high and low alarm: click to access from which to choose: “Datalogger” the Temperature and Humidity (RH models operation or “Real-time” operation. only) settings. Program both the high and low alarm limits. (See "LED Status Guide" “Datalogger”...
- Page 6 Software Setup and Operation (continued) “Real-time” Operating Mode: In the “Real-time” mode, the logger only Allows you to monitor and log the mea- has an immediate start mode which is initi- sured data in real time while the logger is ated by clicking on the clock icon in the still plugged into the computer USB port.
- Page 7 Graphing Options Zoom – Pan Options Clicking on words “Graph with markers” Easy yet powerful zoom and pan options toggles between adding or removing are available for providing a more detailed markers at each data point. view of graphic data. The zoom option is automatically accessed by using the mouse roller adjustment to zoom in or out depend- ing on roll direction.
- Page 8 Maintenance and Repair Sensor Reconditioning (Models 20250-41, -42, -43) Over time, the internal sensor may be compromised as a result of pollutants, chemical vapors, and other environmental conditions which can lead to inaccurate readings. To recondition the internal sensor: • Bake the data logger at 176°F (80°C) at <5% RH for 36 hours, followed by 70 to 90°F (20 to 30°C) at >74% RH for 48 hours (for rehydration).
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