DGH TECHNOLOGY SCANMATE FLEX - Routine Maintenance - Physical Inspection; Verifying A-Scan Calibration; Calibration Test Procedure; Calibration Measurement Standards

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DEVICE CORDS (FLEX-PCABLE)
All device cords (probe cords, power cords, USB cords, etc.) should be rounely inspected for
bends, cuts, abrasions and other forms of damage. Cord connectors should be inspected for
cracks, abrasions, deformaon, damaged/bent pins, etc.
A-SCAN PROBE (DGH6006)
The A-Scan probe housing should be rounely inspected of cracks, spling, dents, sharp edges,
projecons, deformaon and other forms of damage. Special aenon should be paid to the
probe p that contacts the paent’s eye, ensuring that the surface is smooth and without cracks,
dents or blemishes.
B-SCAN PROBE (DGH1912, DGH1920)
The B-Scan probe housing should be rounely inspected for cracks, spling, dents, sharp edges,
projecons, deformaon and other forms of damage. B-Scan probes should also be inspected
for leaks of the internal transmission uid. Special aenon should be paid to the probe p that
contacts the paent’s eye, ensuring that the surface is smooth and without cracks, dents or
blemishes.
UBM PROBE (DGH1500) AND TRANSDUCERS (DGH1500-35, DGH1500-50)
The UBM probe housing should be rounely inspected of cracks, spling, dents, sharp edges,
projecons, deformaon and other forms of damage. Special aenon should be paid to check
for damage/deformaon that may allow water ingress. The black o-ring seals between the
transducer and probe should be checked for damage that may allow water ingress. If the o-ring
is damaged, it can be replaced with the manufacturer provided substutes.
IMMERSION SHELL (P-102)
The A-Scan Immersion shell should be regularly checked for chips, cracks, abrasions,
deformaon and other physical damage. If damage is found, the shell should be discarded and
replaced.
ROUTINE MAINTENANCE — VERIFYING A-SCAN CALIBRATION
WARNING: Verifying calibraon should not be performed while the device is in use with the
paent. Verifying calibraon should be performed prior to use of the device.
A-Scan calibraon should be veried rounely. The soware must be placed into a test mode to
check calibraon on a standardized polystyrene block (provided with unit). The following
procedure describes entering test mode and verifying unit calibraon.
1. Navigate to the Paent Data Screen by selecng the “Paent Data” tab. In the “Last Name”
drop-down box, select “Test Block”.
2. Navigate to the A-Scan Screen by selecng the “A-Scan” tab. The current eye should be
displayed as “Test Block” in the waveform display screen, and the lens type drop-down box
should be frozen, displaying “Test Block”.
3. Place the arm of the Flex unit in the down posion. Apply a small drop of water to the top
of the reference test block.
4. Apply the probe p to the center of the reference test block.
5. Measurement of the test block should begin almost instantaneously. If not, move the probe
p slightly unl a measurement is obtained.