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5. Consumables and Accessories
It will become necessary to reorder the consumables to continue testing on the DR-7 unit. This section
contains reordering information. Many of the test equipment items should not be reused. Contaminated
devices can cause inaccurate or incorrect interpretation.
Part # 73-0050 Pipette Tips- GLASS (Package of 200) – Disposable glass tips used with the pipettor.
Part # 73-0060 Sample Vials (Package of 250) – Disposable glass vial holds the oil and heptane and fit
properly into the vial holder.
Part # 73-0090 Sample Vial Rack – Will hold up to 18 sample vials in preparation for testing.
Heptane – A filtered solvent used to thin the oil sample for testing to run through the precipitator tube at
a quicker rate. The fixer can be used to clean between the optics assembly and magnet assembly. This
solvent is non-carcinogenic, but flammable. (n-Heptane 99+% for Spectrophotometry can be purchased
from VWR at https://us.vwr.com
or call 1-800-932-5000)
Part # 74-0020 Diluent Oil – Used when the oil sample tested exceeds a DL or DS reading of 90 or more
and the sample must be diluted to get a reading under 90 units.
Part # 74-0040 Precipitator Tubes (Package of 250) – This disposable tube carries the oil sample from
the sample vial, over the magnet assembly to the waste bottle. The precipitator tube is constructed of four
parts. The first is a 33” piece of capillary tubing. This runs into a 4-inch piece of glass and is held in place
by a black shrink tube. A piece of tygon tubing is added to the other end of the glass to connect the glass
tube with the left bulkhead.
Part # 74-0250 Grease Solvent – An agent used to dissolve grease into a form that can be tested with the
DR-7 unit.
Part # 75-0010 Bottle Top Dispenser, 1 ml – Use in the fixer bottle to dispense one milliliter of heptane
with each pump.
Part # 75-0030 Pipette Dispenser (Pipettor) – Used to draw one milliliter of the oil sample for the test.
Part # 75-0040 Pipette Tips- PLASTIC (Package of 250) – Disposable plastic tips used with the pipettor.
Part # 76-0030 Wear Particle Atlas – A guide to wear particle identification containing photographs of
critical wear particles found in used lubricating oil, illustrative case histories, and operational procedures
for wear debris analysis.
Part # 43021 DR-7 Calibration Tube - Used in calibration procedure to correct unit light intensity
output.
Part # DR-7FIL - Used for calibration purposes on the DR-7 to confirm the calibration and alignment
readings over time.
NOTE: Part # 73-0060, Part # 74-0040, and Part # 73-0050 must be discarded after one use in order to
eliminate cross contamination.
CAUTION: Heptane and Part # 74-0250 Grease Solvent are considered hazardous materials and should
be handled with caution and disposed of properly. Consult the Safety Data Sheet (SDS) enclosed with
these chemicals for more information.
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