Dataloggers for electrical and industrial purposes revolve around three major objectives: recording, monitoring, and testing.
To automate the recording process, the triggering feature is used in setting up conditions. Graphtec’s robust, independent start and stop triggering capability allows users to capture only the data of interest via event-based triggers or time-based triggers.
In this newsletter, we focus on the triggering feature for all Graphtec portable dataloggers-including the external triggering mechanism in automated testing, monitoring and recording processes.
AUTOMATING YOUR TRIGGER – ON/OFF
In various datalogging testing scenarios, the ability to process the data files by utilizing the trigger will simplify the testing process. It eliminates down-time and automates the starts and stops for the datalogging application. For example, recording temperature data for heat treatment in an oven chamber can be initiated when a specified temperature is met per user’s specification. Graphtec dataloggers provide several options for this triggering mechanism. They include threshold level, alarm, external input, date, weekly, and time stamp triggering variables.
In another example, the trigger can be used for a light fixture application with heat resistance testing. It can test and record weekly, on work hours from Monday to Friday.
Additionally, the trigger can utilize start and stop sources based on the alarm threshold. Conditions can be applied to each of the input channels to set hourly or daily recordings to best suit the file management structure—suited for each user. Repeat function on the triggering setting will then convert the “Time” (or timer) feature into consistent repeatable test files. At the same time, the file is populated on the internal RAM drive or the external SD card. Wireless recording is also available on the GL100, GL240, and GL840s.
In some cases, Graphtec’s recording start and stop sources can be switched on and off using an external triggering feature using a power source from the switch button or power supply of your test fixture. For example: testing battery durability of the loads and temperature levels of the cells can be set to start and stop using the power switches of the battery. This step eliminates the need to switch on a datalogger to start recording—thus providing test engineers an automated datalogging options, eliminating this common human-error associated with test and measurement.
To utilize this feature, you will need the addition of the B-513 Logic/Pulse cable. Within one of the bare terminal leads, the external triggering cable with the ground connected to the ground wire at 0 to +24V single-ended input will directly feed signal to the datalogger for the external triggering feature. Graphte’sc B-513 cable is available through our authorized instruments distributors.
All triggering features are available on the GL APS software for Graphtec portable dataloggers. In addition, the scheduling feature will appropriate customized test workload to individual test files in advance. Users will be able to set test plans beforehand and customize tests based on each user’s requirements.
VARIOUS TRIGGERING METHOD TO CONTROL TEST START AND STOP
GL portable dataloggers provide six different sources for starting and stopping the recording using the trigger functions. Level, Alarm, External Input, Date, Weekly and Time.
EXTERNAL TRIGGERING MECHANISM TO AUTOMATE TESTING
Utilize your power switches for your test fixture and automate the datalogging by using the external triggering mechanism.
NEW SCHEDULE FEATURE AVAILABLE THROUGH APS SOFTWARE
Scheduling feature on the APS software provides in-depth organization of the test scenarios and scheduling for constant use of the datalogger in the field.
GL Series Dataloggers Triggering Features
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