Ankom ANKOM200 FIBER ANALYZER, Руководство оператора

Страница: 31 / 38

Operator’s Manual
Rev 1/24/20
pg. 31
Check the Agitation System
The agitation system should be checked every three to six months or if fiber values are higher than normal or inconsistent. To
check the Agitation System, follow the procedure detailed below.
IMPORTANT:
Poor agitation will cause higher analysis values and poor repeatability.
1. Check the function of the agitator motor.
1.1 Place a full bag suspender in the Vessel along with the bag suspender weight, but add NO water.
1.2 Press the
AGITATE
button so that it is lit.
1.3 Verify that the bag suspender moves up 16 times in 15 seconds (65 rpm).
2. Measure the stroke of the agitation system.
2.1 Place a full bag suspender (without the bag suspender weight) in
the empty Vessel.
2.2 Remove the top from a dark felt tip marker.
2.3 Lay the marker horizontally on the top of the bag suspender so
that the tip touches the inside wall of the Vessel.
2.4 With constant light downward pressure on the marker, hold the
pen in place so that it rides the top tray up and down once the
agitation has begun.
2.5 Turn the instrument Power Switch to the ON position.
2.6 Press the
AGITATE
button so that it is lit.
2.7 Allow the bag suspender (& pen) to move up and down three or
four times as the pen marks the Vessel wall.
2.8 Press the
AGITATE
button so that it is NOT lit. This will turn the
agitation off.
2.9 Turn the instrument Power Switch to the OFF position.
2.10 Remove the pen and the Bag Suspender.
2.11 Measure the mark on the Vessel wall. It should be ½ inch long.
If the motion is less than ½ inch, you will need to replace either
the Bag Suspender Tip (see next page) or the agitator (because the
old disc has flattened).
3.
Check the tip for excessive wear.
Replace worn tips (see pictures).
Worn tip
Good tip