Wahl 392M Manual do Utilizador descarregar pdf (Página 10)

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

Page 1 of 2

3.1 Test Control Settings

TI control(s):

3.1.4 STD Key |/ _

(Press and allow TI display to

stabilize)

(pH) (pH)

3.1.5 TI operational check 7.00 6.97 to 7.03

3.1.6 TI control(s): (Remove BNC

short) pH key (press) TI

display drifts ck ( ) NA

4.2 PH Indication Tests

4.2.2 TI control(s):

pH key (press)

4.2.3 (DC millivolt source)

(mV) (pH) (pH)

295.80 2.00 1.97 to 2.03

177.50 4.00 3.97 to 4.03

59.20 6.00 5.97 to 6.03

–59.20 8.00 7.97 to 8.03

–177.50 10.00 9.97 to 10.03

–295.80 12.00 11.97 to 12.03

4.3 PH Calibration Tests

4.3.4 TI control(s):

CLR key (press)

STD Key |/ _(press)

for TI display

STD 1 of approx. 7.00 ck ( ) NA

NAVAIR 17–20SC–42

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