Gammon Aqua-Glo III Series Manuel - Page 3

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FM 10-67-1 APPENDIX E

To ensure accurate free water detection, the Aqua-Glo III detector must be

assembled for operation and calibrated before each use and after every hour of

use. These procedures are described below:

Slide the meter assembly into the track on the ultra violet lamp assembly.

Turn on the water detector, setting the indicator switch to the appropriate

power source: set to AC (50 or 60 Hz, 110-120v, using power cord),

internal battery, or external battery (using external battery cord). See

Figure E-2. When using the internal battery, ensure the battery is charged

if the battery is in a low or no battery power condition. A low battery

condition can be identified by sluggish response of the meter or failure of

the detector to stay calibrated during two successive tests. Use of the

detector in a low or no battery condition will provide inaccurate test

results.

Remove the calibration pad stored in the kit. Always handle the pad with

tweezers The pad is covered with a clear plastic shielding and has a

coding standard written on one side. Note the "SET" code in the center of

the pad, this is the calibration setting you will use for calibrating. The

sample pad in Figure E-3 has a calibration set code of "5.3.---" Ensure

that the calibration and fluorescing standard are a matched set. The

fluorescing standard located under the hinged light shield has an

alphanumeric code, and should match the code on the calibration

standard. Although the "SET" numbers on the standards may or may not

be the same, the code for the standards must be the same. You should

label or mark the detector with the calibration/fluorescing code to ensure

the proper pad is used during calibration. Matched standard sets can be

ordered under NSN 6630-01-245-5989.

Using tweezers, insert the calibration pad in the test area window located

on the bottom of the water detector. Lift the covers curved metal tab and

place the pad (text facing you) in the depressed circular area in the center

of the test area as shown in Figure E-4. Close the test area cover and

stand the water detector upright.

Position the light-modulator lever, located on the side of the water

detector, until the lever is directly above the number on the scale

corresponding to the set number shown on the calibration pad as shown

in Figure E-5.

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TEST PREPARATION

Page 3 of 10

5/30/2005