Nuclear Associates 07-417
Dual Color Electronic Sensitometer
February 2005
Manual No. 138011 Rev. 5
©2004, 2005 Fluke Corporation, All rights reserved. Printed in U.S.A.
All product names are trademarks of their respective companies
Operators Manual
Fluke Biomedical
Radiation Management Services
6045 Cochran Road
Cleveland, Ohio 44139
440.498.2564
www.flukebiomedical.com/rms
Table Of Contents
Section 1: General Information................................................................................... 1-1
1.1 Introduction .................................................................................................. 1-1
1.2 Specifications............................................................................................... 1-1
1.3 Procedures, Warnings, and Cautions .......................................................... 1-3
Section 2: Operation.................................................................................................... 2-1
2.1 Making an Exposure .................................................................................... 2-1
2.2 Adjusting the Exposure ................................................................................ 2-1
2.3 Receiving Inspection.................................................................................... 2-2
2.4 Storage ........................................................................................................ 2-2
2.5 Battery Installation ....................................................................................... 2-2
2.6 Initial Checkout ............................................................................................ 2-3
Section 3: Maintenance ............................................................................................... 3-3
3.1 Replacing the Batteries................................................................................ 3-1
3.2 Cleaning the Mylar Cover ............................................................................ 3-1
3.3 Replacing the Mylar Cover........................................................................... 3-2
i
General Information
Product Description
1
Section 1
General Information
1.1 Product Description
Model 07-417 (Figure 1-1) is a portable, battery or line operated Sensitometer designed to make
reproducible exposures on x-ray film for measuring the performance of film processing systems. Dual
color capability makes this unit ideal for use in blue sensitive sheet film and green sensitive sheet films as
well as Cine film applications.
In quality control applications, the Sensitometer can be used to expose a sheet of x-ray film under
optimum conditions. Other films can then be exposed periodically (e.g., daily) and compared to the initial
film using a densitometer (e.g., Model 07-445). It can then be determined if there is a need for corrective
action in order to obtain high quality radiographs.
1.2 Specifications
Light Source Two color electroluminescent lamp
Green: 520 nm +10 nm.
Blue: 455 nm +10 nm.
Exposure Time 50 to 500 ms (100 ms optional)
Adjustment Range 1 ms to 9999 ms.
Adjustment Resolution 1 ms increments.
Exposure Adjustment Separate rear case screwdriver adjustment for each
Color; 1.0 D range.
Exposure Monitor Audible tone during exposure.
Repeatability 0.04 log exposure entry from unit to unit.
Time Stability +
Temperature Stability +
Step Wedge 21-steps, 0.15 D/setup
Controls BLUE/GREEN Switch: Rocker switch selects color. EXPOSURE: Push-button
switch starts exposure with two-second delay to prevent double
exposures.
Power Battery: Two 9 V alkaline batteries
Type: MN1604 or equivalent
Life: 10,000 exposures
Low Battery Indication: When battery voltage is insufficient for proper exposure,
an exposure will not be made and the tone will not sound.
0.02 log exposure per year
0.02 log exposure from 10° C to 45° C
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Operators Manual
Power Con’t AC: Optional power converter
Part: 14-407 (United States, Canada)
Input: 115 VAC, 60Hz, 13W
Output: 12 VDC, 400 mA, Regulated
Part: 14-431 (Europe)
Input: 230 VAC, 50 Hz
Output: 12 VDC, 640 mA, Regulated
Part: 14-432 (United Kingdom)
Input: 230 VAC, 50 Hz
Output: 12 VDC, 640 mA, Regulated
Operating Conditions 100 C to 450 C (500 F to 1040 F)
Max. 90% Relative Humidity
Dimensions (W x H x D) 5/8" X 35/8" x 51/4"
(195 mm x 92 mm x 135 mm)
Weight 2.5 lb (1.1 kg)
Routine Cleaning of Case
CAUTION
Do not immerse the Model 07-417. The unit is not
waterproof. Liquid could damage the circuits. The
unit should be kept clean and free from dirt and
contamination. The unit maybe cleaned by wiping
with a damp cloth using any commercially available
cleaning or decontaminating agent (See Section
3.2, Cleaning the Mylar Cover).
Blue Adjustment
Color
Green Adjustment
Figure 1-1. Model 07-417 Sensitometer
Expose
Jack for Optional
External Converter
Side
Film Stop/Hinge
Cover
1-2
General Information
Procedures, Warnings, and Cautions
1
1.3 Procedures, Warnings, and Cautions
The equipment described in this manual is intended to be used for QUALITY CONTROL testing of x-ray
film in processor equipment. It should be used only by persons who have been trained in the proper
interpretation of its readings and the appropriate safety procedures to be followed.
Although the equipment described in this manual is designed and manufactured in compliance with all
applicable safety standards, certain hazards are inherent in the use of this equipment.
WARNINGS and CAUTIONS are presented throughout this document, when applicable, to alert the user
to potentially hazardous situations. A WARNI NG is a precautionary message preceding an operation
that has the potential to cause personal injury or death. A CAUTION is a precautionary message
preceding an operation that has the potential to cause permanent damage to the equipment and or loss
of data. Failure to comply with WARNINGS and CAUTIONS is at the user’s sown risk and is sufficient
cause to terminate the warranty agreement between Fluke Biomedical, Radiation Management Services
and the customer.
Adequate warnings are included in this manual and on the product itself to cover hazards that may be
encountered in normal use and servicing of this equipment. No other procedures are warranted by Fluke
Biomedical. It shall be the owner’s or user’s responsibility to see to it that the procedures described here
are meticulously followed, and especially that WARNINGS and CAUTIONS are heeded. Failure on the
part of the owner or user in any way to follow the prescribed procedures shall absolve Fluke Biomedical
and its agents from any resulting liability.
WARNING
This instrument contains CMOS integrated circuits.
Static charge normally present in a dry atmosphere
or leakage current in soldering irons or other nongrounded tools can instantly destroy CMOS
components. Do not attempt to remove or replace
ICs in this device without observing antistatic and
leakage current precautions. Service should be
performed only by a technician thoroughly familiar
with CMOS devices.
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Operators Manual
Operation
Making an Exposure
Section 2
Operation
2.1 Making An Exposure
Use the following procedure to make an exposure:
1. Raise the cover slightly and insert the film against the film stop (emulsion side down with single
emulsion films). Refer to Figure 2-1 for proper film insertion.
The film stop is the "U” bracket that is part of the
cover hinge.
2. Close the cover and press the EXPOSE push-button.
The unit does not produce a second exposure if the
EXPOSE push-button is pressed within two
seconds of the original exposure, preventing the
possibility of double exposures.
NOTE
NOTE
2
3. Open the cover and remove the film.
Be careful not to damage the thin mylar sheet that
covers the step tablet. It can be cleaned as
necessary using a soft, damp, lint free cloth or
camel hairbrush.
NOTE
2.2 Adjusting the Exposure
The Model 07-417 Dual Color Sensitometer is factory calibrated to produce a density of 1 + base + fog in
the center of the step tablet for medium speed blue sensitive films (e.g., Kodak XRP- 1) and green
sensitive films (e.g., Kodak OG- I). The exposure may be adjusted by using a screwdriver to turn the
potentiometers accessed through the rear of the unit. Refer to Figure 1-1 for green and blue adjustment
locations. Each adjustment has a total range of approximately 1.0 D.
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Nuclear Associates 07-417
Operators Manual
Film Stop
Figure 2-1. Film Insertion
2.3 Receiving Inspection
Upon receipt of the unit:
1. Check the shipping carton(s) and their contents for in-shipment damage. If damage is evident, file
a claim with the carrier and notify the Customer Service Department at Fluke Biomedical
440.498.2564.
2. Check that all items listed on the packing slip are present and in good condition. If any items are
missing or damaged, contact the Customer Service Department at Fluke Biomedical 440.498.2564.
2.4 Storage
If necessary to store the unit prior to use, pack it in the original container(s), if possible, and store in an
environment free of corrosive materials, fluctuations in temperature and humidity, and vibration and
shock.
2.5 Battery Installation
The Dual Color Sensitometer requires two (2) 9 V
batteries. One battery is installed; the other is
securely fastened to the packing material around
the sensitometer.
NOTE
2-2
Operation
Battery Installation
Use the following procedure to install the batteries:
1. Locate the battery compartment on the underside of the sensitometer.
2. Pull out the top of the battery compartment cover retainer.
3. Completely remove the battery compartment cover.
4. Note the placement of the installed battery and install the supplied battery in a likewise manner.
5. Replace the battery compartment cover.
6. Push down on the plastic retainer to secure the battery compartment cover.
2.6 Initial Checkout
Check unit operation as follows:
1. With the color selector switch in either the BLUE or GREEN position, press the EXPOSE pushbutton. A short tone of about 1,000 Hz indicates a proper exposure.
2. In a darkroom, lift the cover of the sensitometer.
a. With the color selector switch in the BLUE position, press the EXPOSE push-button and verify
that the proper color illuminates the step tablet. The tone should sound for the same
period as the exposure.
b. With the color selector switch in the GREEN position, press the EXPOSE push-button and
verify that the proper color illuminates the step tablet. The tone should sound for the same
period as the exposure.
NOTE
When using the Dual Color Sensitometer with
single emulsion film, the emulsion side should
always be down, in contact with the step tablet.
The numbers on exposed single emulsion film read
correctly with the emulsion side up, on units with
alternating long and short marks above the steps.
On newer units, with all long marks above the
steps, the numbers on the exposed film read
correctly with the emulsion side down.
2
2-3
Maintenance
Replacing the Batteries
3
Section 3
Maintenance
This instrument contains CMOS integrated circuits.
Static charge normally present in a dry atmosphere
or leakage current in soldering irons or other nongrounded tools can instantly destroy CMOS
components. Do not attempt to remove or replace
ICs in this device without observing antistatic and
leakage current precautions. Service should be
performed only by a technician thoroughly familiar
with CMOS devices.
NOTE
3.1 Replacing the Batteries
The batteries shipped with the unit should provide, under normal circumstances, approximately 10,000
exposures. The batteries should be replaced at least once a year. Use the following procedure:
1. Locate the battery compartment on the underside of the sensitometer.
2. Pullout the top of the battery compartment cover retainer.
3. Completely remove the battery compartment cover.
4. Remove the used batteries.
5. Insert two (2) fresh 9 V alkaline batteries.
Alkaline batteries must be used; otherwise the unit
may not operate properly.
6. Replace the battery compartment cover.
NOTE
3.2 Cleaning the Mylar Cover
The step tablet is protected by a Mylar sheet that should be cleaned routinely with a damp lint-free cloth.
Use extreme care when cleaning the Mylar sheet so as not to damage it.
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3.3 Replacing the Mylar Cover
If the step tablet mylar cover is damaged, replace it using the following procedure:
1. Remove the batteries (refer to Replacing the Batteries, Section 3.1).
2. Remove the case from the base by removing the four (4) screws on the sides of the case.
3. Remove the cover and hinge from the case by removing the two (2) screws located inside the case.
4. Starting at the edge nearest the cover, carefully peel off the mylar film.
Be careful not to lift off the step tablet or the
double-sided tape.
5. Clean the step tablet with a camel hairbrush.
6. Position the replacement the mylar cover film (Part No. 138032) over the step tablet.
7. Secure the sides and front edge of the film to the step wedge using Magic
inches wide.
NOTE
TM
transparent tape, 0.5
3-2
Fluke Biomedical
Radiation Management Services
6045 Cochran Road
Cleveland, Ohio 44139
440.498.2564
www.flukebiomedical.com/rms
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