32 . OilExpress 4 System User's Guide
For FT-IR analysis using the OilExpress 4 System the recommended system liquid is heptane.
If you have a dual-purpose system and will be using WinPREP software for oil dilution, you
will require a second system liquid container containing V-Solv ICP solvent or odorless
kerosene.
If you have a single system liquid, all four fluid lines are fed through the system liquid
container lid (one for each VersaTip and syringe pair) and secured using a weight. If you
have two system liquids, the tubing for VersaTips 2 and 4 is installed in the heptane
container. The tubing for VersaTips 1 and 3 is installed in the oil dilution solvent container.
Both solvents are used as hydraulic fluid for the system when priming, aspirating and
dispensing.
CAUTION
Never run the system without system liquid. Running the system dry can
accelerate seal, syringe, and valve wear.
Ensure that the tubing into the system liquid container does not become twisted when fitting
the container lid. If necessary, turn the container rather than the lid.
Use of Flammable Solvents and Samples
on page 24 for recommendations to follow
when using and dispensing flammable materials.
OilExpress 4 System Liquid Additive
Adding the OilExpress 4 System Liquid Additive (part number N9308354) to the system liquid
at 0.5% v/v has been found to reduce soot build-up when analyzing engine oils with high
soot contents (>0.5%).
It is important to ensure that the additive is mixed fully with the system liquid. Fill the system
liquid container with heptane, leaving space for an additional 100–150 mL of heptane. Pour
approximately 100 mL of heptane into a beaker. Add to the beaker 5 mL of System Liquid
Additive for each liter of system liquid, and then stir or shake until dissolved. Add the
contents of the beaker to the solvent in system liquid container, and then stir or shake gently
until mixed. Insert the tubing and replace the liquid container lid.
NOTE: When using the System Liquid Additive, the drilled cap provided with the system
liquid bottle
must
be used. Leaving the bottle open to air can lead to a precipitate
forming in the system liquid.
Summary of Contents for OilExpress 4
Page 1: ...OilExpress 4 Oil Condition Monitoring System User s Guide MOLECULAR SPECTROSCOPY ...
Page 5: ...Introduction ...
Page 17: ...Warnings and Safety Information ...
Page 27: ...Overview of the OilExpress 4 System ...
Page 67: ...Getting Started with OilExpress 4 ...
Page 95: ...Maintenance and Troubleshooting ...
Page 144: ...144 OilExpress 4 System User s Guide ...
Page 145: ...Appendices ...