Air Techniques A/T2000 XR, Руководство по обслуживанию, Страница: 30 / 60

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AT2000 XR Film Quality Troubleshooting
TROUBLESHOOTING
1. FILMS ARE TOO DARK or GRAINY
A. Confirm the following initial requirements for AT2000XR Automatic film processing;
1. Proper X-Ray exposure setting, overexposure will create dark films.
2. Film is not outdated (within manufacturer's recommended processing life) or defective.
3. Film is stored in a warm environment - Too hot conditions will increase base fog.
4. Film used is not Automatic Processing type.
5. Film/screen combination is correct per manufacturer's specifications.
6. Intensifying screens are not worn, outdated, and/or dirty.
7. Chemistry is not contaminated and within recommended useful life. Refer to
AVOIDING CHEMISTRY CONTAMINATION provided on page 37 to prevent problems.
8. Chemistry listed is designed for roller transport processors.
B. Confirm the DARKROOM requirements are met;
1. Room temperature is below 80°F
2. Room has no light leaks. Fogging is manifested from light leaking.
3. Room SAFELIGHT is correct for automatic processing (15 watt Ruby Red safelite & minimum 4
feet from AT2000XR).
C. If films initially are dark immediately after chemical changing, the cause can be attributed to high
levels of chemical activity. Add Starter to developer as needed (See chemistry manufacturer's
recommendation).
D. Check the chemistry temperature for being too HOT (optimum temp. setting of 82°F NOT achieved) -
Preview the processor's temperature setting as follows; POWER ON, push and hold the DISPLAY
SET-TEMP button. The value displayed will start flashing, if NOT 82° then a readjust;
1. Open the flip lid on the top side of the Electronics Module, push and hold the DISPLAY SET-TEMP
button on the keypad and rotate the potentiometer until 83 is displayed. Once reaching 83, slowly
rotate counterclockwise until 82° is achieved. (The processor's heat control & display can be
reviewed on FUNCTIONAL MODES FUNCTION CHART, page 15)
2. If chemistry temperature is above 82°F, and the display pre-set is 82°F - Analyze the heat control
components per the check sequence listed in TROUBLESHOOTING GUIDE SECTION 1-CHEM-
ISTRY TEMPERATURE CONTROL PROBLEMS, Item D provided on page 27.
E. If this is a Daylight Loader (DLL)application, check the DLL for light leaks;
1. Confirm the view glass is closed when the user handles films.
2. Check the condition of the cuffs (Worn, torn, loose, etc...)
3. Check the mounting onto the processor.
4. Check the seal around the lid (Cover w/ view glass)