EchoSpan LU80-5101, LU8-5161,LU81-5101, LU81-5161, LU83-5101, LU83-5161, LU84-5101 & LU84-5161 Series Revision A.1 Flowline Inc. 10500 Humbolt Street Los Alamitos, CA 90720 Tel: (562) 598-3015 Fax: (562) 431-8507 www.flowline.
Preface This manual explains how to use the EchoSpan, LU81, LU83 and LU84 series transmitter. Warranty, Service & Repair To register your product with the manufacturer, go to the Flowline website for on-line registration. The website address is as follows: www.flowline.com On-line Warranty Registration can be found on the Flowline home page.
Warranty Flowline warrants to the original purchaser of its products that such products will be free from defects in material and workmanship under normal use and service in accordance with instructions furnished by Flowline for a period, which is equal to the shorter of one year from the date of purchase of such products or two years from the date of manufacture of such products.
Introduction: The EchoSpan is a general-purpose ultrasonic level transmitter that provides a loop powered 4-20 mA output. The 4-20 mA output can be used to provide the proportional level of liquid in any tank or vessel. The signal can be connected to any device that accepts a loop powered 4-20 mA signal, such as a PLC, SCADA, DCS, display, controller, etc.
About this Manual: PLEASE READ THE ENTIRE MANUAL PRIOR TO INSTALLING OR USING THIS PRODUCT. This manual includes information on the EchoSpan series Ultrasonic Level Switch from FLOWLINE. Please refer to the part number located on the switch label to verify the exact model configuration, which you have purchased. User’s Responsibility for Safety: FLOWLINE manufactures a broad range of level sensing technologies.
Make a Fail-Safe System: Design a fail-safe system that accommodates the possibility of switch and/or power failure. FLOWLINE recommends the use of redundant backup systems and alarms in addition to the primary system. Flammable, Explosive or Hazardous Applications: EchoSpan should not be used within classified hazardous environments. Warning: Always use the Viton gasket when installing the EchoSpan, and make sure that all electrical wiring of the switch is in accordance with applicable codes.
Specifications: Range: Accuracy: Resolution: Dead band: Beam width: Configuration: Memory: Display type: Display units: LU80: 4" to 9.8' (10 cm to 3m) LU81: 8" to 18.0' (20 cm to 5.5m) LU83: 8" to 26.4' (20 cm to 8m) LU84: 12" to 32.8' (30 cm to 10m) ± 0.2% of range LU80: 0.019” (0.5mm) LU81/83: 0.039” (1mm) LU84: 0.078” (2 mm) LU80: 4” (10cm) LU81\83: 8” (20 cm) LU84: 12” (30 cm) LU80: 2” (5cm) LU81/83/84” 3" (7.6 cm) dia.
Wiring to Display, Controllers & PLC’s Below is a quick review of wiring the EchoSpan to common display, controllers and PLC’s.
Wiring to Display, Controllers & PLC’s (continued) DataPoint LC52 Series Level Controller JWA mode (Factory Setting) DataPoint LC52 Series Level Controller JWB mode Generic Loop Powered Display Generic PLC 31 MAR 11 Rev B EchoSpan MN301550 9 of 22
General notes for electrical connections, usage and safety: Where personal safety or significant property damage can occur due to a spill, the installation must have a redundant backup safety system installed. Wiring should always be completed by a licensed electrician. Supply voltage should never exceed 28 VDC. The sensor materials must be Chemically compatible with the liquids to be measured. Design a fail-safe system for possible sensor and/or power failure.
Feature Guide: FEATURE Easy to use MENU Many UNITS of measurement. No cumbersome measure required. Set point distances are relative to the tank bottom. Optional Target Calibration Fail-Safety ACCESS BY Press and hold SELECT key until MENU is displayed approximately 5 seconds. The MENU items will rotate through display, press SELECT to change an item. In the MENU mode, press SELECT when UNITS is display, then select INCHES, CM (centimeter), FEET, METERS or PERCENT.
o Note: if UNITS is set to Percent, then TANK will not appear. To view TANK, set UNITS to any of the following: Inches, Centimeters, Feet or Meters. SAFE – The fail-safe for the EchoSpan can be preset to the customer’s requirement. o 22 mA – Overfill fail-safe setting. o 21 mA – Overfill fail-safe setting. o 20 mA – Full fail-safe setting. o 4 mA – Empty fail-safe setting. o HOLD – Keeps the output at its last current reading when fail-safe condition occurs.
Note: Reading the level of liquid in Percent: Flowline recommends that when selecting PERCENT, configure the HEIGHT and FILL-H settings before selecting PERCENT in order to span the EchoSpan for your application requirements. When in PERCENT, the operational span will be based upon the last TANK settings, typically the factory settings for HEIGHT and FILL-H. EchoSpan HEIGHT FILL-H LU80 Series 118.1” (300 cm) 114.1” (290 cm) LU81 Series 216.5” (550 cm) 208.5” (530 cm) LU83 Series 314.
How to configure the Operational range of EchoSpan: No cumbersome measurement is required via Target Calibration to establish set points. Set point distances are relative to the tank bottom. 1. In MENU mode, select the TANK item. 2. When HEIGHT appears, press SELECT. 3. Using the UP and DOWN buttons, set the HEIGHT of the tank from the transducer face to the bottom of the tank. 4. To enter the value, press and hold SELECT (Approximately 2 seconds) until SAVED is displayed. 5.
How to set a Reverse the Current Output: The default for EchoSpan is to have 4 mA at Empty and 20 mA at Full. This is the normal (NORM) setting. The output can be reversed (REV) with 20 mA at Empty and 4 mA at Full. 1. 2. 3. 4. In MENU mode, select the TANK item. When REV MA appears, press SELECT. When REV appears, press SELECT. When EXIT appears, press SELECT return to Top Level Menu. EchoSpan is now in the Reverse mode.
How to set using Target Calibration (Empty): Instead of measuring for Empty tank, the Empty distance can be set automatically. This method requires that the tank be Empty or at the level that is considered Empty in the application. To set TG Empty, follow the instructions below. 1. Before beginning, make sure the level is tank is at the Empty level. 2. In MENU mode, select the TG CAL item. 3. When EMPTY appears, press SELECT. This sets the current distance as the new Empty setting. 4.
Installation The EchoSpan should always be mounted perpendicular to the liquid surface and installed using the provided Viton mounting gasket. Make sure that the fitting and transmitter threads are not damaged or worn. Always hand-tighten the transmitter within the fitting. Perform an installed leak test under normal process conditions prior to system start up. Note: The preferred mounting fitting for the LU80 series is the LM52-1400 (2” thread x 1” thread) reducer bushing. Mounting Guide 1.
Fitting Selection: Check the part number to determine the required fitting mount size and thread type. EchoSpan is commonly installed in tank adapters, flanges, brackets or standpipes. Note: Always include the gasket when installing the EchoSpan. 1. Tank Adapter: Select a tank adapter fitting, such as the LM52-1890 for the LU80 series or the LM52-2890 for the LU81, LU83 & LU84 series. a.
3. Flange (LU80 series): If installing on a flange, select a flange with a thread that is above the plane of the flange, such as the LM52-1850. a. The LU81, LU81 & LU83 series works well with Flange installations. b. Avoid the use of blind flanges with tapped threads or flanges where the threads are even with the plane of the flange, such as the Banjo 1" Poly ANSI Flange (series AF100). c. Use a flange with a 2” thread and add a 2” to 1” reducer bushing to complete the installation.
5. Stand Pipe: A standpipe maybe used to dampen turbulence or when foam is present in the application. a. Pipe can be made of any material. b. Select a minimum 3” ID pipe for the stand pipe. i. A 2” pipe is usable with the LU80 series, but is the minimum. ii. Pipes larger than 3” can also be used. c. Use a coupling and reducer bushing to attach the EchoSpan to the pipe. i.
Appendix: Setup: You can view how the EchoSpan is configured. 1. From the main MENU level, press SETUP when VALUES appears. 2. When SETUP appears, press the SELECT key. 3. Setup will display the following information: a. Units, Display, Rev mA, Safe, Height, Fill-H 4. When completed, press SELECT when EXIT appears to return to the main program level. Diagnostics (DIAG) Parameters: This mode runs diagnostic tests that confirm operation of EchoSpan.
Troubleshooting: PROBLEM TANK does not appear on the main menu: Display shows FULL: Display shows EMPTY: Display shows WARMUP: Display shows LOST: Display is opposite of the measured value: Transmitter indicates a current of 0 mA: Transmitter jumps to a current reading between 19 and 20 mA: Transmitter indicates a current over 23 mA: 22 of 22 SOLUTION Units function is set for PERCENT on EchoSpan: When Units is set for PERCENT, the TANK function is disabled.
