Cannon-instrument D155 Density Meter User Manual download pdf (Page 44)

6-3-7. There is poor repeatability on measured values

Contact our local dealer to

check the cell.

START

Is the sample homogeneous?

Is there

any repeatability for the

measurement with

pure water?

Is the work bench vibrating?

Any sample residue

in joint portions (tube nozzle A,

joint B or the like)?

Are air bubbles found

in the sample?

Is the measuring cell dirty?

Is the temperature of

measuring cell stable?

Repeat sampling. (When air bubbles

appear again, refer to Section 6-3-6.)

Stir to make it homogeneous. (No

repeatability when the sample is

unevenly mixed.)

Overhaul the joints and clean

them.

Rinse the cell thoroughly

Measure after temperature

becomes stabilized.

Yes

Contact our local dealer.

Is everything O.K.?

END

Yes

Measure the sample on a

stable bench.

CANNON

D155 Density Meter Instruction & Operation Manual

Version 1.1b – August 2014; CANNON® Instrument Company

2139 High Tech Road • State College, PA • 16803 • USA

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Cannon-instrument D155 Density Meter User Manual Page 44