
TEST INST (S)
CALIBRATION CHECKLIST
PROC. NO.
Beckman Instruments pHI 31 pH Meter
MFG. MODEL
SER. NO.
PROCEDURE
STEP
NO.
(1)
FUNCTION TESTED
(2)
NOMINAL
(3)
MEASURED VALUES
FIRST RUN
(4)
SECOND RUN
(5)
OUT
OF
TOL
(6)
CALIBRATION TOLERANCES
(7)
NA 17–20SC–42
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4.3.6 TI control(s):
STD Key |/ _(press)
for TI display
STD 2 of approx. 4.01 ck ( ) NA
4.3.8 pH measurement
(press pH key) (pH) (pH)
4.01 3.98 to 4.04
4.3.9 STD 2 of approx. 10.01 ck ( ) NA
4.3.10 pH measurement (pH) (pH)
(press pH key) 10.01 9.98 to 10.04
4.4 Temperature Indication Tests
4.4.4 TI temperature indication 25_C +0.5_ C of std, Ind.
NAVAIR 17–20SC–42
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