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TEST INST (S)

CALIBRATION CHECKLIST

PROC. NO.

VWR Scientific 34100–674 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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3.1 Test Control Settings

3.1.4 TI control(s):

FUNCTION switch to MV

Adjust isopotential pot.

until TI display reads “000”.

(Remove TI back cover for

access)

3.1.5 TI operational check 000 ck ( ) NA adjust

4.1 MV Indication Tests

4.1.3 Zero Indication (mV)

000 to 002

4.1.5 MV RANGE (mV) (mV)

1500 1498 to 1502

1000 998 to 1002

800 798 to 802

600 598 to 602

400 398 to 402

200 198 to 202

4.2 PH Indication Tests

4.2.2 TI Control(s):

FUNCTION sw. to pH

4.2.3 (DC Millivolt source)

(mV) (pH) (pH)

295.000 2.00 1.97 to 2.03

177.000 4.00 3.97 to 4.03

59.000 6.00 5.97 to 6.03

–59.000 8.00 7.97 to 8.03

–177.000 10.00 9.97 to 10.03

–295.000 12.00 11.97 to 12.03

NAVAIR 17–20SC–42

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