CALIBRATION REPORT

CALIBRATION PROPERTIES
Calibrated by: Audun Tovslid & Anders Tørklep
Type/Producer: Kulite
SN: Z73-92 (4537-33)
Range: 0-7bar a
Unit: kPa

CALIBRATION SOURCE PROPERTIES
Type/Producer: Pressurements deadweight tester P3223-1
SN: 66256
Uncertainty [%]: 0,01

POLY FIT EQUATION:
Y= + 202,59051050E+0X^0 + 20,12948496E+0X^1

CALIBRATION SUMARY:
Max Uncertainty    : 0,160085 [%]
Max Uncertainty    : 0,336944 [kPa]
RSQ                       : 1,000000
Calibration points : 17

Figure 1 : Calibration chart (The uncertainty band is multiplied by 10 )







_______________________________________
Audun Tovslid & Anders Tørklep




CALIBRATION VALUES

Value [kPa] Voltage [V] Best Poly Fit [kPa] Deviation [kPa] Uncertainty [%] Uncertainty [kPa]
370,720003 8,353740 370,746987 -0,026984 0,015955 0,059148
360,704896 7,854685 360,701268 0,003629 0,016359 0,059008
350,689789 7,356358 350,670216 0,019573 0,015475 0,054270
340,674682 6,860087 340,680530 -0,005848 0,015394 0,052444
330,659575 6,361431 330,642840 0,016735 0,015665 0,051799
320,644468 5,865571 320,661431 -0,016963 0,015444 0,049521
310,629361 5,366368 310,612739 0,016622 0,015630 0,048552
300,614254 4,869665 300,614359 -0,000106 0,016932 0,050899
290,599147 4,371786 290,592320 0,006827 0,020472 0,059491
280,584040 3,874398 280,580153 0,003886 0,022247 0,062421
270,568933 3,377233 270,572462 -0,003530 0,022877 0,061898
260,553825 2,877508 260,513274 0,040551 0,026585 0,069268
250,538718 2,381577 250,530421 0,008297 0,030470 0,076338
240,523611 1,889522 240,625615 -0,102004 0,043183 0,103866
230,508504 1,386947 230,509041 -0,000537 0,049235 0,113491
220,493397 0,888799 220,481573 0,011824 0,069551 0,153355
210,478290 0,390460 210,450263 0,028027 0,160085 0,336944


COMMENTS:



The uncertainty is calculated with 95% confidence. The uncertainty includes the randomness in the calibrated instrument during the calibration, systematic uncertainty in the instrument or property which the instrument under calibration is compared with (dead weight manometer, calibrated weights etc.), and due to regression analysis to fit the calibration points to a linear calibration equation.The calculated uncertainty can be used as the total systematic uncertianty of the calibrated instrument with the given calibration equation.