4
98MANAL553 Rev. D
MECHANICAL INSTALLATION
The model 553 is mounted in a 1 inch PMC process connection. The unit may be mounted directly to the process fitting in
any orientation with negligible positioning error. To mount the unit, first lubricate the o-ring with light oil or other
acceptable lubricant. The medium to be measured may also be used. Align the mounting hole with the hole in the nipple
adapter. Insert the 5/16-24 bolt into the hole and tighten to 120 - 140in./lb.
ELECTRICAL CONNECTIONS
The standard wiring of your Viatran pressure transmitter is outlined on page 3. If your unit was ordered with an alternate
connector or special wiring refer to the wiring information permanently marked on your unit. The 553 transmitter can be
powered by a dc power supply ranging from 12 to 30 volts. With a 4-20 mA device please refer to the load/voltage chart
(below) to identify the required input voltage for your specific system load.
MAINTENANCE AND REPAIR
All Viatran transmitters have been designed to function free from routine or scheduled maintenance. Simple cleaning of
the pressure sensor on an as needed basis will provide many years of satisfactory performance. Protecting the product
from continued exposure to moisture or fluids at the electrical connection will eliminate premature internal failure of the
product. Generally any time the product is removed from service, the pressure sensor should be flushed with a stainless
steel compatible cleaner to prevent media buildup. During the cleaning process only a soft, lint-free cloth is recommend-
ed. Never use a coarse or stiff bristle brush to clean media from the diaphragm surface.
It is suggested that the calibration be verified on a usage dependent schedule. If the product is in continuous service 7
days a week, then calibration verification may be necessary every 6 to 8 months. If the product is in a lab test environ-
ment, a more lenient verification schedule would be appropriate. In all instances the performance of the product will
depend on the individual application or process in which it is installed. More continuous usage would require a shorter
period between calibration verification and product maintenance.
If a product is perceived to be exhibiting problems, it can be returned to Viatran for analysis and/or repair. It is suggested
that only Viatran personnel attempt repair of the product. Any damage resulting from customer disassembly would result
in a loss of coverage under the warranty policy. Older products returned for repair are updated to current specifications
unless the repair cost would outweigh the cost of a new replacement model. Products returned for repair should include
information on the person to contact for repair quote approval, the individual to contact if Viatran's technical staff requires
additional information during analysis, and a brief description of the problem associated with the product's failure.
REPAIR INSTRUCTIONS
Viatran's Transmitters are designed to be easily repaired and recalibrated if necessary. If a failure occurs, the transmitter
should be returned to the factory for inspection and testing. Please contact the Customer Support Department at 1-800-
688-0030, for a return authorization number and/or a repair cost estimate. A nominal inspection fee is charged on all units
returned to the factory which are not subsequently repaired.
WARRANTY
Viatran Corporation warrants that its products shall be free from defective workmanship and/or material for a period of
twelve (12) months from the date of shipment, provided that Viatran's obligation hereunder shall be limited to correcting
any defective workmanship and/or replacing any defective material f.o.b. factory. No allowance will be made for any
expense incurred for correcting any defective workmanship and/or material without written consent by Viatran. This war-
ranty is in lieu of all other warranties expressed or implied.
Summary of Contents for 553
Page 3: ...3 98MANAL553 Rev D ...
