Exposing the sample pad

TM 5-6640-213-14

Exposing the sample pad.

(a) Open the detector pad holder and remove

a 25-mm detector pad from its sealed envelope with tweezers.

(b) Press the pad into the recess of the

outlet half of the sample holder housing with yellow side exposed.

screwing both halves together firmly by hand.

(d) Reconnect the assembly at the quick-

disconnect coupler. Open the toggle valve and allow 500 ml of test

fluid to. pass through the detector pad.

NOTE

A 500 ml test is necessary for accurate results in

the range of 1 to 10 ppm of water. A 100 ml test

is suitable for determination of water content up

to 13 to 60 ppm.

(e) Close the toggle valve and remove the

entire assembly by actuating the quick-disconnect coupler.

Reading test results.

A pad must never be dried in air because it will

pick up moisture from the air. A desiccator must

be used if the pads are to be dried. Fuel damp

means; a detector pad that has been pressed between

paper towels as described in (b) below.

(a) Open the detector pad holder and remove

the detector pad with tweezers. The point of the tweezers can be

inserted under the pad through the notch in the rim of the recess.

(b) Press the detector pad between dry

paper towels to remove excess fluid. Press firmly (about 5 lb) three

or four times with heel of the hand, moving the pad with tweezers to

a dry spot each time.

flap on the bottom of the unit with the yellow side facing inward.

(d) Mount the meter assembly on the side of

the unit-by sliding it into the tracks provided. Turn on the Aqua-

Glo lamp by following the directions on the battery cover.

NOTE

Never leave the light on except while a reading is

being taken; the battery will provide only 1 hour of

light, and it takes 14 to 16 hours to recharge it.

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