EVALUASI KINERJA SISTEM AKUISISI DATA NI-9213 MELALUI KETIDAKPASTIAN PENGUKURAN TEMPERATUR

ABSTRAK
EVALUASI KINERJA SISTEM AKUISISI DATA NI-9213 MELALUI KETIDAKPASTIAN
PENGUKURAN TEMPERATUR
.
Untai FASSIP-01 digunakan untuk simulasi sistem
keselamatan PLTN. Sistem keselamatan FASSIP-01 diadopsi dari Advanced
Light Water
Reactors (ALWRs)
dimana sistem tersebut memanfaatkan gravitasi dan sirkulasi alami.
Pada sistem FASSIP-01 perlu dilakukan pemantauan beberapa parameter pada fenomena
sirkulasi alamiah, antara lain pemantauan terhadap temperatur akibat adanya proses
pemanasandan pendinginan yang terjadi pada sistem. Karena itu diperlukan alat ukur yang
baik yang dapat memberikan informasi pengukuran yang akurat. Pada penelitian ini
digunakan alat ukur temperatur berupa sensor termokopel tipe K. Alat ukur terkoneksi ke
sistem akuisisi data dan dibaca melalui layar komputer. Tujuan penelitian ini adalah untuk
memantau kinerja alat ukur sistem akuisisi data NI-9213 melalui pengukuran ketidakpastian
pengukuran temperatur pada Untai FASSIP-01. Penelitian dilakukan menggunakan metode
eksperimen, dimana nilai-nilai hasil pengukuran diperoleh dan diamati dari serangkaian
perlakuan. Hasil penelitian menunjukkan bahwa pada seluruh 16 kanal NI-9213 diperoleh
ketidakpastian pengukuran rata-rata sebesar 0,014%. Hasil ini memperlihatkan bahwa
kinerja sistem NI-9213 masih sangat baik karena memenuhi ketentuan Komite Akreditasi
Nasional tentang batas kepercayaan untuk ketidakpastian yang diperluas sebesar 95,45%
atau persentase kesalahan hingga 4,5%.
Kata Kunci: Keselamatan Pasif, Akuisisi data, ketidakpastian pengukuran temperatur,
termokopel tipe K, sirkulasi alamiah.
ABSTRACT
PERFORMANCE EVALUATION OF DATA ACQUISITION SYSTEM NI-9213 BASED ON
TEMPERATURE MEASUREMENT UNCERTAINTY
. Loop FASSIP-01 is used as a
simulation tools for safety systems of nuclear power plants. FASSIP-01 safety systems
adopted from the Advanced Light Water Reactors (ALWRs) where the system uses
gravity
and natural circulation. The monitoring several parameters in natural circulation of loop
FASSIP-01 is necessary, such as temperature monitoring due to the heating and cooling
process that occur in the system. Therefore it is necessary to have a good performance
measurement tools that can provide accurate information. In this study, K-type
thermocouples sensor are used for temperature measurement. Thermocouples are
connected to the data acquisition system and the data that can be read on computer screen.
The purpose of this study is to monitor the performance of the measuring instrument data
acquisition system NI-9213 through the uncertainty in the temperature measurement of
FASSIP-01. The study was conducted using the experimental method, in which the values of
measurement results obtained and observed from a series of treatments. The results show
that in all 16 channels, the NI-9213 earned an average measurement uncertainty of 0.014%.
These results show that the system performance of NI-9213 is very good. It meets the
provisions of the National Accreditation Committee of the confidence limits for the
uncertainty which expanded by 95.45% or the percentage of error of 4.5%.
Keywords:
Passive Safety, data acquisition, temperature measurement uncertainty, K-type
thermocouples, natural circulation