Over the last few years, increasingly stringent requirements for the test procedure as well as the efficiency, accuracy and frequency of measurements have made it necessary to implement a number of upgrades at the test lab. The switch from DIAdem to LabVIEW as the measuring software was a key step. The measuring software was entirely redesigned, programmed, and completed in late 2020. During the current fiscal year, this was followed by comprehensive validation of the measuring application and its integration with the existing ASME and TÜV test lab certifications. LESER developed and coded the new software in-house. Having this expertise available on-site allows the company to respond rapidly to special customer requests or changing software requirements. The concept underlying the software is modular, and its coding is simple enough to allow for module modifications or add-ons without causing major overhead. An additional benefit of the new software is its
user-friendly front end which provides the tester with precisely the information she or he needs. For example, there is a special software module that integrates the safety valve functional limits from all the relevant regulations and displays the relevant values on-screen during the test (refer to
figure 1). Another module enables automated documentation of the opening and closing pressure values via Wi-Fi at the push of a button. The tester stands next to the valve where he or she captures all readings (refer to figure 2). A number of smart ideas were incorporated into the software to support and accelerate the testing or calibration process while saving time and costs. Replacing the pressure sensors used in flow rate measurements with differential pressure measuring devices, combined with the new measurement software, has significantly reduced measurement uncertainties and errors. All these upgrades enable LESER to perform measurements more efficiently and with even higher precision, gather more information and knowledge, accommodate more special customer requests, and save costs.