Introduction - K-TEK AccuTrak AT100 Installation & Operation Manual

1.0 INTRODUCTION

K-TEK AT100 transmitters are used extensively around the world to accurately measure level in process
vessels. High accuracy and no maintenance are two of the most common reasons for choosing this technology.
With optional ratings to 800°F (427°C) and 3000 PSI (207 bar), K-TEK's Magnetostrictive Level Transmitters are
suitable for almost any application. HART, Honeywell DE, and Foundation Fieldbus Protocol options make our
AT100‟s easy to connect digitally to most control systems. LCD displays provide indication as 4-20mA, %, and other
engineering units.
When used on Storage Tanks, concerns of high accuracy, low maintenance and reasonable cost leads
customers to install flexible probe versions of the AT100‟s in their storage tanks. With the ability to be easily
installed to a maximum of 75 feet (23 meters), almost any liquid storage application can be handled. Some
common liquids include water, acids, caustics, propane, ammonia, oils, fuels, chemicals, and waste liquids. An
optional internal 20-segment increment table allows the AT100 to provide volumetric output in vertical cylinder,
horizontal cylinder or spherical vessels (See Section 4 for details on the Volumetric Strapping Table).
K-TEK‟s AT100‟s can be used as "Displacer Replacers".
processes have seen many repetitive problems in operation including the following: extreme errors in output due to
specific gravity changes, leaks around the torque tube penetration, and low or stuck readings due to product buildup
on the torque tube or displacer. AT100‟s can be inserted into the existing Displacer Chambers or a new External
Chambers to solve the listed problems. Tremendous improvements in accuracy will be realized. Additionally, this is
an extremely easy way to update pneumatic Displacer Transmitters.
The Magnetostrictive Level Transmitter (AT100) can be used to measure the level of interface between two
fluids The AT100 is the finest technology available for liquid level interface measurement and control. K-TEK
AT100‟s can be equipped to provide two (2) level indications: one for interface and a second for total level. Designs
are available for differences of specific gravity down to 0.04 differences. Most commonly applied to oil and water
separator interface, this technique is used in many process applications. Others include HF acid / propane vessels,
de-salters and sumps.
The AT100 can be used as a Valve Positioner by utilizing the AT100‟s non-contact style of measurement. A
magnet is attached to the valve stem and the AT100 is located along side the valve stem. The inherent 0.01% high
accuracy in our AT100 transmitter allows exceptionally fine control and measurement of valve position. K-TEK‟s
AT100‟s never need to be re-calibrated ensuring accurate and precise control. The AT100 can also be used as an
Equipment Positioner. Industrial facilities require accurate positioning of equipment. This can be accomplished with
Magnetostrictive (non-contact measurement).
dampers, and hydraulic cylinders. K-TEK advantages of push button configuration, 4-20mA output, and heavy duty
construction ensure ease of installation and a long trouble free life.
Finally, the AT100 can be used in various Sanitary Applications including the Bio-Tech, Pharmaceutical and
Food Industries. A range of surface finishes are available to suit the needs of the process environment including
electro-polishing.
Based on the Functional Safety Assessment of Exida, the AT100 transmitter is suitable for use in a Safety
Instrumented Function requiring a SIL 2 risk reduction in single use and a SIL 3 risk reduction in redundant use with
a Hardware Fault Tolerance of 1.
Only transmitters meeting all of the following requirements may be used in a Safety Instrumented Function:

Transmitters fitted with a 4-20 mA output HART protocol /M4A or /M4B or /M4AS or /M4BS Electronic Module.

Modules marked as follow: AT_H_01_S003_090209 or AT_H_TS_01_S003_090209 (Transmitters equipped
with software revision of AT_H_090209 or AT_H_TS_090209 and a hardware revision 01).
AT100-0200-1 Rev L (10-2010) DCN0528
Most Liquid Level Displacers in dynamic
It has been applied to many devices including gates, louvers,
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