User manual VAISALA SPECTRUM 4.0

[. . . ] Veriteq > > > > > Spectrum 4. 0 User Guide w w w. veriteq. com w w w. vaisala. com Copyright Copyright © 2010 Veriteq Instruments, Inc. No copying, distribution, publication, modification, or incorporation of this document, in whole or part, is permitted for commercial purposes without the express written permission of Veriteq Instruments. Veriteq, a Vaisala company 13775 Commerce Parkway Richmond, BC V6V 2V4 Canada Trademarks Veriteq Instruments, Veriteq, and Veriteq Spectrum are trademarks of Veriteq Instruments. All other trademarks referred to are the property of their respective owners. Disclaimer and Limitation of Liability Veriteq Instruments, Inc. [. . . ] Under Display Units, specify the range and units to display instead of the input signal range. To set warmup time and save transducer battery life, see Configuring Warm Up Time on page 30. Ensure the Channel is enabled by selecting the Channel Enabled check box. If applicable, for input range, choose whether this is a 1 or 10 volt range channel. Under Display Units, specify the range and units to display instead of the input signal range. Veriteq also supports a Boolean DC Voltage Channel type on some SP4000 loggers. For this type, specify the Threshold Voltage and the resulting display units. For example, if you want voltage above the threshold 29 Getting Started value to show as 1, indicate 1 for Above Threshold and specify the units. Boolean choices are typically 1 (above threshold) and 0 (below threshold). 5. Click OK. Configuring Warm Up Time Note: This section only applies to Veriteq SP-4000 data loggers. Some SP-4000 data loggers have the ability to switch power from an external battery onto a transducer using the Warmup Time feature, also known as the XPS excitation control switch. This is useful for conserving power when an external transducer is being powered from an external battery. Set transducer warm up time to a number of minutes or seconds before data is recorded by the data logger. To set when the data logger will record data, see Setting the Data Logger Sample Timing on page 22. To configure transducer warmup time: 1. From the row for the channel you want to set up the warm up time for, click Setup. You can also set up warmup time from the Logger Setup window. 30 Veriteq Spectrum 4. 0 User's Guide 5. For Timer Value, set the number of minutes or seconds you want the transducer to begin warming up before taking a sample. Click OK. Configuring Data Logger Channels to Work with Thermocouples This section applies only to those using Veriteq SP-1700 Series Loggers. Veriteq SP-1700 loggers work with various types of thermocouples (E, J, K, R, S, and T). You need to configure your channel to specify the type of thermocouple you are using. To configure SP-1700 loggers to work with thermocouples: 1. From the Setup Thermocouple Channel screen, select Enable Channel. 4. Advanced: If your installation includes very long thermocouple cables, Veriteq may recommend you specify a temperature offset. [. . . ] Air at 50°F can hold only one-quarter the amount of water as air at 95°F. A setting in Spectrum (Tools>Options>Insert tab - Sample smoothing) that controls how the samples in a logger file are interpreted when they are inserted into a graph. Sample smoothing (or sample deadband) is the minimum change in the input signal required to cause a change in the displayed channel values. Sample smoothing is used to dampen the effects of noise, and is defined in terms of raw analog-to-digital converter counts. [. . . ]