Pengaruh Diameter Tabung Kalibrator terhadap Kesalahan Kalibrator Pengukur Curah Hujan Berbasis Web

Abstract

Testing of the Effect of Calibrator Tube Diameter on Calibartor Error for Web-based Rainfall Gauge has been tested. This test is carried out to determine the diameter of the Calibrator Tube, both for calibrating the Rainfall gauge and for knowing the relationship between Diameter and Calibartor Error for Web-based Rainfall Gauges. Tests were carried out using 5 variations of the diameter of the tube, namely 1.5 inch, 2 inch, 2.5 inch, 3 inch, and 4 inch. Rainfall simolator in testing using aqua water with a standard mass of 320 grams in the calibration process. Calibration on each Diameter is carried out for 1 minute using an automatic pump. Measurement of changes in mass in each tube was weighed using a balance with an accuracy of 0.1 gram. Data collection techniques are carried out by weighing the mass of the tube before the calibration process is carried out, then weighing the tube mass again after completing the calibration process for 1 minute, then subtracting the mass of the tube after calibration with the mass of the tube before calibration. The results showed that the diameter of the tube greatly affects the error of the web-based rainfall measuring calibrator. The percent error value of the calibrator on a diameter of 1.5 inch, 2 inch, 2.5 inch, 3 inch, and 4 inch is 0.84%, 1.86%, 2.94%, 4.15%, 8.07% . The larger the tube diameter, the greater the value of the calibrator error and the calibrator error quadratic to the diameter of the calibrator tube.

Telah dilakukan pengujian Pengaruh Diamater Tabung Kalibrator terhadap Kesalahan Kalibartor Pengukur Curah Hujan berbasis Web. Pengujian ini dilakuakn untuk mengetahui ukuran Diameter Tabung Kalibrator baik digunakan untuk kalibrasi pengukur Curah Hujan dan mengetahui hubungan Diameter dengan Kesalahan Kalibartor Pengukur Curah Hujan berbasis Web. Pengujian dilakukan dengan menggunakan 5 variasi ukuran Diameter tabung yaitu 1,5 inch, 2 inch, 2,5 inch, 3 inch, dan 4 inch. Simolator curah hujan dalam pengujian menggunakan air aqua dengan massa standart 320 gram dalam proses kalibrasi. Kalibrasi pada masing-masing Diameter dilakukan selama 1 menit menggunakan pompa otomatis. Pengukuran perubahan massa pada masing-masing tabung ditimbang menggunakan neraca dengan ketelitian 0,1 gram. Tenik pengambilan data dilakukan dengan menimbang terlebih dahulu massa tabung sebelum proses kalibrasi dilakukan, kemudian ditimbang kembali massa tabung setelah selesai melakukan proses kalibrasi selama 1 menit, kemudian dikurangi massa tabung setelah kalibrasi dengan massa tabung sebelum kalibrasi. Hasil penelitian menunjukkan bahwa Diameter tabung sangat mempengaruhi Kesalahan Kalibrator Pengukur Curah Hujan Berbasis Web. Nilai persen kesalahan kalibrator pada diameter 1,5 inch, 2 inch, 2,5 inch , 3 inch, dan 4 inch adalah 0,84 %, 1,86 %, 2,94%, 4,15 %, 8,07 %. Semakin besar diameter tabung semakin besar nilai kesalahan kalibrator dan Kesalahan Kalibrator Kuadratis terhadap Diameter Tabung Kalibrator.