Peterbilt Batching Application
Industry: Motor Vehicles and Equipment
SIC Code: 37-1
Application:
Batching of solvent that is used to clean chassis prior
to painting. In the case of Peterbilt, the EPA allows no
more than 32 ounces to be sprayed on each chassis. The Hoffer
batch controller has reduced the amount of solvent used
along with providing a verification method for the EPA.
System Requirements:
Must be highly accurate at low flow rate.
Must only allow set amount per spray.
Must totalize monthly usage.
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Solution:
Hoffer Mini-Flowmeter: MF½X100A-.06-1.6-B-1MC3PAX-MS
Flowstar 2007A-X-R2-1-1-RF-X-DSR-1-HO/LO-NI-X The Hoffer
Mini-Flowmeter and Flowstar Batch Controller were installed
just outside the paint booth. Manufacturer set Flowstar
2007 to close a valve after 31.5 ounces of solvent have
been dispensed via a spray gun. The operator is then
required to press a reset button in the paint booth
before the next chassis enters to initialize the Flowstar
for another 31.5 ounce batch.
Hoffer Advantage:
Meter calibration is NIST traceable .
Higher accuracy at low flow rate than paddlewheel
meter.
Use of Flowstar improves flowmeter linearity via linearization.
Summary:
The system allows Peterbilt to stay within the EPA's
limitations on VOCs in their production environment
and to control usage of an expensive product. It also
insures that the information supplied to the EPA on
monthly usage is accurate and verifiable.
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APPLICATION: SOLVENT BATCH
CONTROLLER
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