PRODUCT OVERVIEW
NOTE: All information contained in this document is representative of a standard Model 509/709/809. If the product you ordered has
special requirements or modifications, refer to the Laser Marked information on the product and your purchase order for possible
alteration to the product's configuration. Failure to verify product configuration before installation may cause permanent product damage
and in most cases, void the manufacturer's product warranty. If you are unsure or have questions about your product, please contact our
Application Engineers for assistance.
Remove and retain all instruction manuals and performance certificates that are shipped with the product. These documents provide
important information on the product's calibration, operation, safety precautions, recommended maintenance, recalibration requirements,
repair service instructions and warranty information. These documents are updated from time to time as changes to the product occur and
should be reviewed at receipt so that proper and safe installation can occur.
DESCRIPTION
Viatran Models 509, 709 and 809 are pressure transmitters designed specifically for oil field service applications. Depending on the
model, these transmitters provide either a 4-20mA (509), 0-5VDC (709) or 3mV/V (809) signal output proportional to pressure. The
hammer union pressure connection and low profile design make it ideal for use at the well site. Additional features such as field
calibration make the Viatran "X09" Series a leader in oil field pressure instrumentation.
FIELD CALIBRATION
The X09 Series Transmitters are provided with a unique feature which permits field calibration to be performed by electronically
simulating pressure. Powering the calibration terminals (Model 509) or connecting (shorting) the calibration terminals (Models 709
and 809) produces a signal output equivalent to approximately 100% of full scale pressure. This can be used to adjust the gain on the
user's meter or data acquisition equipment. The transmitter should be connected as shown below.
GENERAL REQUIREMENTS & CAUTIONS
Note: This is only a partial list. Please refer to the Installation Data section of this manual for specific requirements.
1.
All electrical & pressure connections should be compatible with the model specifications as outlined in the Installation Data section
of this manual.
Installation should occur only after electrical (input power) and line pressure is verified as being off and at zero.
The product's internal electrical circuitry is isolated from case ground. It is not recommended that the case or ground of the unit be
connected to the input, output or calibrate pins of the product or wiring system. Ground loops and line noise will affect the
product's performance and will in most cases cause internal electrical failure.
All products should be protected from direct or continued exposure to fluids at the electrical connection. It is recommended that for
products installed in areas where the potential for contamination at the electrical connection is possible, protective measures be
taken to eliminate possible deterioration of the product's electrical connection and corrosion that will impede product performance.
At no time should an object be inserted into the pressure port or pressed against the sensing area to deflect the sensor (to test or
simulate pressure), as on some models permanent damage to the sensing diaphragm may occur.
Never Remove the transmitter when it is under pressure, if it is hot, or if it exposes noxious gases.
HANDLING
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Although there are variations within the series of sensors, the nominal weight of the assembly is about 5.5 lbs. This is of significant size
and a handle is available to facilitate handling. High surface temperatures can remain in place and the unit should be checked before
removing the unit from service if it was operated at high temperatures. Suitable gloves are recommended for handling the unit under
those conditions. There are no sharp edges associated with the instrument.
INSTALLATION REQUIREMENTS & CAUTIONS
1.
To comply with CE requirements for electromagnetic compatibility, the transmitter case must be earthed by the ground lug at the
connector.
It is recommended that the connector cover be placed on the product's connector after each use. Simple cleaning and removal of
foreign material in the connector will increase the life and operation of the product.
The included carrying handle and connector cover should be used when the product is being handled or transported between locations.
Installation of the unit is accomplished by placing the pressure transmitter into the hammer union pressure fitting and securing the
unit by tightening the hammer union nut (Fig. 1) over both the unit and pressure fitting. Once installed, check for leaks and adjust as
necessary.
When installing the pressure transmitter, hand tightening of the hammer union nut is recommended. Use of a hammer to tighten
the hammer union nut is discouraged because inadvertent blows to the transmitter may result in damage. To ensure a watertight
seal between the adapter and sensor, the O-ring, should be inspected and replaced if needed, whenever the transmitter is
disassembled. (Figure 2)
When installing the unit to the pressure connection, care should be taken to avoid direct hits to the unit. A direct hit from a
sledgehammer to the product itself could cause latent failure to the product. Direct hits can result in the loss of retention clips,
failure of the electrical connector or electronics, or bending of the top assembly from the body which would allow sensor cavity
contamination. In all cases this would be determined as a non-warranty related product failure and repair.
Product fasteners must be replaced when found to be missing or broken. Spare fastener kits are available
from Viatran to maintain the seal of the product. If the product is operated with missing or broken clips, the
potential for seal failure is considerable. In all cases this would be determined as a non-warranty related
product failure and repair.
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98MANALX09 Rev. K
