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Gammon Aqua-Glo III Series Manual

Water detection
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FM 10-67-1 APPENDIX E
Amprobe Products
Amprobe Electrical meters Amprobe and TIF
a Division of ATP
WATER DETECTION (AQUA-GLO) TEST
To test aviation fuels for undissolved (free) water, use the Aqua-Glo III
ultraviolet detector kit as shown in (Figures E-1A and E-1B). The standard
test method for undissolved water is ASTM D 3240-86a. The following
equipment is required to perform this test:
Aqua-Glow series III Free Water Detector Unit
The Aqua-Glo series III determines the degree of undissolved water content.
The ultraviolet lamp assembly has a single, permanent fluorescing standard,
positioned under a photographic-type iris diaphragm that can be opened or
closed to increase or decrease the amount of ultraviolet light. The water
content is determined by adjusting the diaphragm lever arm until the
fluorescing standard and the test pad shows equal brightness in the ultraviolet
light. The balance is reached when the zero-centering ammeter reads ZERO.
The amount of water is read in parts per million (PPM) on the diaphragm
lever arm scale that has been precalibrated in the factory.
The fuel sample passes through a uranine dye-treated filter pad. Free water in
the fuel reacts with the uranine dye. When the pad is illuminated by ultraviolet
light, the dye contacted by the free water will fluoresce a bright yellow. The
pad is packaged in a hermetically sealed packet. The test pads are packaged 50
to a box.
A test pad holder and sample line are used to draw the fuel sample through the
http://www.globalsecurity.org/military/library/policy/army/fm/10-67-1/APPE.HTML
APPENDIX E
EQUIPMENT
Test Pads
Test Pad Holder and Sample Line
Resistance Meter
0.1u-ohm to 110M-ohm High Accuracy &
High Speed
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Page 1 of 10
5/30/2005

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Summary of Contents for Gammon Aqua-Glo III Series

  • Page 1 FM 10-67-1 APPENDIX E Page 1 of 10 Amprobe Products Resistance Meter Amprobe Electrical meters Amprobe and TIF 0.1u-ohm to 110M-ohm High Accuracy & a Division of ATP High Speed Ads by Goooooogle APPENDIX E WATER DETECTION (AQUA-GLO) TEST EQUIPMENT To test aviation fuels for undissolved (free) water, use the Aqua-Glo III ultraviolet detector kit as shown in (Figures E-1A and E-1B).
  • Page 2 FM 10-67-1 APPENDIX E Page 2 of 10 test pad. The test pad holder is coupled to a sampling coupler mounted on the downstream side of the filter/separator. Paper towels or blotters Paper towels or blotters are used to remove excess fuel from the test pad before testing is conducted for prior to testing for free water.

  • Page 3: Test Preparation

    FM 10-67-1 APPENDIX E Page 3 of 10 TEST PREPARATION 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.
  • Page 4 FM 10-67-1 APPENDIX E Page 4 of 10 Depress the switch button on the instrument pack and read the calibration meter. If the meter reads "0," the water detector is calibrated as shown in Figure E-6. If the meter reads any increment other than "0," you must adjust the internal calibration screw until the water detector is "zeroed- out."...
  • Page 5 FM 10-67-1 APPENDIX E Page 5 of 10 Figure E-3. Calibration pad and calibration set code Figure E-4. Placement of calibration pad in test area window http://www.globalsecurity.org/military/library/policy/army/fm/10-67-1/APPE.HTML 5/30/2005...
  • Page 6 FM 10-67-1 APPENDIX E Page 6 of 10 Figure E-5. Set the light-modulator lever Figure E-6. Calibration meter lever shaft reading "0" http://www.globalsecurity.org/military/library/policy/army/fm/10-67-1/APPE.HTML 5/30/2005...

  • Page 7: Sampling Procedures

    FM 10-67-1 APPENDIX E Page 7 of 10 Figure E-7. Zeroing-out the meter lever SAMPLING PROCEDURES The sampling coupler must be permanently attached to a fuel probe mounted downstream from the filter/separator. For the test to be accurate, the sample must be taken from a moving stream of fuel.

  • Page 8: Test Procedures

    FM 10-67-1 APPENDIX E Page 8 of 10 product. Shut the toggle valve and uncouple the detector pad assembly. Unscrew the two halves of the detector pad holder. Using tweezers, take the detector pad out of its envelope and put it, orange side up, in the recess in the outlet side of the holder.

  • Page 9: Cleaning And Maintenance

    FM 10-67-1 APPENDIX E Page 9 of 10 500 mL sample, the scale reads directly in PPM of free water in the fuel. If your reading is 10 PPM or below, the test is finished and the fuel may be used for Army or Air Force aircraft. Readings of 5.0 PPM or below are required for use in Navy and Marine Corps aircraft.
  • Page 10 FM 10-67-1 APPENDIX E Page 10 of 10 Figure J-8. Reading the undissolved water level http://www.globalsecurity.org/military/library/policy/army/fm/10-67-1/APPE.HTML 5/30/2005...