Bulletin L-UT Series UT Transmitters Specifications - Installation and Operating Instructions DWYER INSTRUMENTS, INC. P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Phone: 219/879-8000 Fax: 219/872-9057 www.dwyer-inst.com e-mail: info@dwyer-inst.
Defining 22 mA/3.7 mA Signal Error Messages . . . . . . . . . . . . . . . . . . . . . .15 Entering Factor for Gas Compensation in Series UT . . . . . . . . . . . . . . . . . .15 Table of Contents Chapter 1. Introducing Series UT Sensor Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Series UTC Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Series UTS Specifications . . . . . . . . . . . . . .
Chapter 1: Introduction Series UT is a non contact, ultrasonic, continuous level measurement instrument that is able to provide accurate measurements for liquids, while automatically compensating for changes in temperature and other environmental conditions. Series UT is designed for applications such as process tanks, storage vessels, open air piles, open channels, and so on. Series UT is a four wire, low voltage device, and is available with a graphic LCD display.
SPECIFICATIONS Sensor Recommendations SERIES UTC Service: Compatible liquids. Wetted Materials: ECTFE. Ranges: (Sensor Dependent) Short Range: 1.3 to 39.4 ft (0.4 to 12 m); Standard Range: 2 to 82 ft (0.6 to 25 m); Long Range: 2 to 131 ft (0.6 to 40 m). Accuracy: UTC-1XX-XXX-X: 0.25% of max range; UTC-2XX-XXX-X: 0.2% of max range. Resolution: 0.04˝ (1 mm). Temperature Limits: UTC-XX1-XXX-X: -40 to 140°F (-40 to 60°C); UTC-XX2-XXX-X: -4 to 140°F (-20 to 60°C). Temperature Compensation: Automatic.
Threading Options Series UT sensors are available in BSP or NPT thread types. The UTS-2XX-XXXX (50 kHz) sensor can be installed using 1˝ threading. The UTS-1XX-XXX-X (25 kHz) sensors can be installed using 1 or 2˝ threading. (Refer to Figure 6: Series UT Sensor Dimensions in Chapter 1: Introduction.) Flexible Cable Flexible sensor cables are supplied with 16.4 ft/5 m loose-end cable. However, they can be modified to fit longer length than 16.4 ft/5 m.
Installing the Sensor via an Extension Pipe If the level of the measured surface falls within the dead-zone area, you should use an extension pipe to mount the sensor. Sensor Positioning When installing the sensor, ensure that it is: • Mounted above the dead-zone area (Blind Zone) (blocking distance). When using an extension pipe, ensure that: • The sensor is positioned in the center of the pipe. • The pipe extension is parallel to the side/tank walls.
Wiring the VDC Power Cable The free end of Series UT’s (UTC-XXX-1XX-X) power cable is connected to the electrical unit using terminal JP2 when working in VDC. Wiring the Sensor Cable Sensor cable specifications: 5 wires, 0.75 mm2 overall shielded. After the sensor is installed on the tank, the free end of the sensor cable is connected to the electrical unit using terminal JP5. To Wire the Power Cable to JP2: 1. Thread the required cable through C2 aperture at the base of the electrical unit. 2.
Accessing the Main Menu This chapter describes access and setup for Series UTS and UTC. The Series UT main menu screen is accessed from the default screen, using the function buttons located under the LCD. Using the Series UT Function Buttons The function buttons are used to perform various operations, summarized in the following table. Button or Uses Include: • Accessing the menus (when pressed ). simultaneously with • Accessing a function within a menu, enabling you to make modifications.
• FLOW: The screen displays temporary flow passing through the configured flume/weir. If required, you can select this option to label the reading when working in flow mode. temporarily while Series UT is taking a reading. You can refresh the reading by pressing the ENT and BACK buttons simultaneously.
To Set the Relay Values for Level or Distance: Setting the Series UTC Relay Values You can set the relays to five different configuration modes: Level, Distance and Flow (where applicable), Volume and Totalization (the last two modes should be configured only after Volume/Totalization options were enabled in the Chapter 5, Additional Features). Use NEXT or BACK buttons to toggle between modes and ENT to select the mode. After selecting an indication mode, move on to set the first relay parameters.
To Set Relay 5 for Pulse Indication: NOTES: The same configuration applies when selecting volume mode for the relays. Relays OPEN and CLOSE values should differ when working in FLOW or TOTALIZATION mode. Press/Action or Setting Relay 4 to Report Errors This mode enables you to use the relay as a trigger to set on an alarm or siren in case the unit produces inaccurate measurement results due to an electrical failure or acoustic problem.
Setting the Flow Measurements The PARSH.FLUM function enables you to set flume/weir types and measurements for Series UT open channel models. Refer to Chapter 4, Series UT Open Channels, for further information. To Set the Relay Values for Level or Distance: Press/Action Display Explanation to enter relay setup. With the RELAY icon flashing. to enter open mode. Enters the open values mode of the relay setup. The relay number flashes throughout the process of defining its values.
Setting the Sensor Offset Series UT takes measurements from the tip of the sensor. However, when the sensor is located at a point that is above or below the true height of the tank, you can use the MAN function to enter the difference. This may be required, for example, if the sensor is installed at the top of an external pipe, or at the base of an internal pipe in the tank. Setting the Application Type The Series UT main menu displays (by default) LIQUID for models intended for liquid.
To View Processor Information: Press/Action Display The scan distance function is accessed from the default screen. AUTO. CAL is displayed at the base of the display screen during the scan distance operation, indicating that you are working in scan distance mode. In the main menu display, press NOTES: The reading of the actual target height may not be exact; for example, a target height of 6 m may give a reading of 5.998. and simultaneously.
To Select the Flow Measurement Settings: Press/Action Display Explanation With the required option flashing in the main menu. Displays the last saved flow measurement setting or default value. Use to select a new type value (X). Flumes/Weirs - European Standard Rectangular Suppressed Sharp-Crested Weir (Type 1) Code (YY) Crest Length (cm) 01 20 02 40 03 60 04 80 05 100 06 150 07 200 08 300 or The last two digits of the display flash.
Parshall Flume (Type 6) Trapezoidal (Cipolletti) Sharp-Crested Weir (Type 3) Code (YY) V-Notch Angle (°) 01 90 02 60 03 53.8 04 45 05 30 06 28.4 07 22.5 British Standard 08 90 09 45 10 22.
H Flume (Type 8) Flumes/Weirs - American Standard Rectangular Suppressed Sharp-Crested Weir (Type 1) Code (YY) Flume Size (ft) Measurement Point (cm) 01 0.5 5 02 0.75 7 03 1 9 04 1.5 14 05 2 18 06 2.5 23 07 3 28 08 4.5 41 Code (YY) Crest Length (in) 01 12.00 02 18.00 03 24.00 04 30.00 05 36.00 06 48.00 07 60.00 08 72.00 09 96.
Palmer Bowlus Flume Trapezoidal Throat Cross-Selection (Type 6) V-Notch (Triangular) Sharp-Crested Weir (Type 4) Code (YY) V-Notch Angle (°) 01 90 02 60 03 45 04 30 05 22.
Chapter 6: Troubleshooting Series UT Leopold-Lagco Flume (Type 8) Code (YY) Crest Length (in) 01 4 02 6 03 8 04 10 05 12 06 15 07 18 08 21 09 24 10 30 11 36 12 42 13 48 14 54 15 60 16 66 17 72 This chapter describes the error messages displayed when an illegal value is entered for a Series UT function, or when an option is selected that is not applicable for the specific Series UT model you are using.
Appendix B: Gas Factor Table This following table contains 33 different types of gas and their factor for compensating sound velocity. Entering the desired factor (refer to Chapter 5, Additional Features for more details) will immediately change the measurement results to fit your application requirements. Appendix A: Series UT Ranges This appendix provides the maximum and minimum permitted values for the main menu functions in the Series UTS and Series UTC units.
