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Summary of Contents for FlowLine Thermo-Flo LC30 Series
- Page 1 LC30 Series Manual Flowline Inc. 10500 Humbolt Street Los Alamitos, CA 90720 Tel: (562) 598‐3015 Fax: (562) 431‐8507 www.flowline.com Rev B MN301515 1 of 14 ...
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Page 2: Table Of Contents
INTRODUCTION / TABLE OF CONTENTS Step One The LC30 Series Controllers are general‐purpose flow controller that accepts one flow sensor input and provides one 16A relay for low‐flow pump or process protection. This package has an optional flashing alarm and is ideal for alarm indication. Package this flow controller with our liquid or gas flow switch sensors. Features Fail‐Safe relay control of pumps, valves or alarms with a 0 to 60 second delay Optional flashing alarm brings immediate attention to level alarm conditions. Polypropylene enclosure rated NEMA 4X with swivel base for conduit alignment. Easy setup with LED indicators for sensor(s), power and relay status. Invert switch changes relay state from NO to NC without rewiring. AC powered Table of Contents Specifications: ................................. 3 Dimensions:................................ 3 Safety Precautions: .............................. 4 Make a Fail‐Safe System: .......................... 5 Components: ............................... 5 Getting Started: ... -
Page 3: Dimensions
SPECIFICATIONS/DIMENSIONS Step Two Controller Side View Supply voltage: 120 / 240 VAC, 50 ‐ 60 Hz. (LC30‐1001 & LC30‐1051) Consumption: 5 Watts max. Sensor inputs: (1) flow switch Sensor supply: 24 VDC @ 50 mA LED indication: Sensor, relay & power status Contact type: (1) SPDT Relay Contact rating: 250 VAC, 16A Contact output: Selectable NO or NC Contact delay: 0 to 60 seconds Electronics temp.: F: ‐40°to 158° C: ‐40°to 70° Enclosure rating: NEMA 4X (IP65) Enclosure material: PP (U.L. 94 VO) Enclosure mount.: 3/4” NPT (Rc) Enclosure rotation: 300°swivel base Conduit entrance: Single, 1/2" NPT Side View with Strobe Alert Classification: ... -
Page 4: Safety Precautions
This manual includes information on two different models of Compact Relay Flow Controllers from Flowline: LC30‐10_1 and LC30‐10_2. The LC30‐10_1 is a single‐input flow controller and the LC30‐10_2 is a single‐input controller with a Strobe Alert™ flash alarm. Many aspects of installation and use are similar between the two models. User’s Responsibility for Safety: FLOWLINE manufactures several models of controller, with different mounting and switching configurations. It is the user’s responsibility to select a controller model that is appropriate for the application, install it properly, perform tests of the installed system, and maintain all components. Electrical Shock Hazard: It is possible to contact components on the controller that carry high voltage, ... - Page 5 In critical applications, redundant backup systems and alarms must be used in addition to the primary system. Such backup systems should use different sensor technologies where possible. While this manual offers some examples and suggestions to help explain the operation of FLOWLINE products, such examples are for information only and are not intended as a complete guide to installing any specific system. ...
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Page 6: Getting Started
Step Four The LC30 Series may be used with any Flowline flow switch with an N‐channel (ends in “‐_ _ _ 2”) or relay (ends in “‐_ _ _ 5”) output. The relay is a single pole, double throw type; the controlled device can be ... -
Page 7: Electrical
ELECTRICAL Step Five Connecting switches to input terminals: Please note a difference between FLOWLINE flow switches. All flow switches will be wired with the White wire to the (S) terminal. Models FT10 ‐ _ _ _ 5 and GT10 ‐ _ _ _ 5 will be wired with the Green wire to the (‐) terminal). The Red and Black wires can be wired to either the (+) terminal or (‐) terminal based upon switch polarity. See the illustration below to indicate wiring for your switch. Note: the Shield wire will be used only for long cable runs or where excessive electrical noise is present. Normally Closed Normally Open Switch Cable: When installing a Flowline flow switch, adjust the cable away from the printed circuit boards in the controller body. Avoid breaking the seal between the top of the level switch and the plastic coated cable. VAC Power Input Wiring: Observe the labeling on ... -
Page 8: Strobe Alert Output
ELECTRICAL Step Five Strobe Alert Output (LC30 ‐ _ _ _ 2 Series): With the Strobe Alert wired NC; it can be used as a high or low level alarm, depending on the setting for the invert switch. The Strobe Alert can also be wired NO. Changing from 120 to 240 VAC: Standard Version 1. Remove the two screws from the top of the printed circuit board (PCB) and gently slide the PCB from the housing. Use caution when removing the PCB. ... -
Page 9: Installation
INSTALLATION Step Six Mounting on a Sensor: The following procedure should be used when mounting the controller directly on a flow sensor. All power to the system must be off before installing the junction box. 1. Prepare the sensor: The following instructions assume the sensor is already mounted in a position on its fitting (as described in the sensor manual). Note that because the insulation jacket of the sensor is less flexible than most (to ensure chemical compatibility), it is important that you follow the instructions exactly. a. Cut the wire 4‐1/4” from the top of the sensor. b. Using a 10 gauge wire stripper, strip the white outer layer of insulation from the last 1‐1/4” of the sensor wire. Trim off and discard the exposed foil shield flush with the insulation jacket. In long cable runs, do not cut off the drain wire. c. Using a 20 gauge wire stripper, strip the last ¼” of insulation from the signal wires. Important: Do not strip more than 0.2” (5mm) of insulation from any wire that will be connected to the terminal strip. Longer insulated wire may contact the terminal strip panel, causing a short circuit leading to a system failure. ... - Page 10 INSTALLATION (continued) Step Six 4. Mechanical connection to conduit: All wiring between a controller and sensors should be in conduit. The power entrance of the controller is a standard ½” NPT female fitting that will attach to standard electrical conduit, either plastic or metal, as specified by local codes. Keep in mind that the housing may have to be unscrewed from the sensor for periodic cleaning of the sensor. For this reason the use of flexible conduit, providing enough slack for easy access is recommended. 5. Connect the extension wiring: Before making connections, make sure all power to the system (controller, motor, valve, alarm, etc.) is OFF with a safety lockout on the circuit breaker. a. The extension wiring to controller should take into account long cable runs. If the run is long, it may need to be a slightly thicker gauge so the series resistance is kelp within allowable limits. b. Thread the extension wiring through the power conduit entrance of the housing. c. Strip ¼” of the insulation from the ends of the wires. d. Loosen the appropriate terminal screws. Insert the extension wires into the corresponding terminals, matching the sensor wires. e. Tighten the terminal screws. f. Return the wire protector to its location and restore the final screw which holds the wire protected and PCB in its place. ...
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Page 11: Application Examples
APPLICATION EXAMPLES Step Seven Low Flow Alarm: The goal is to indicate when the flow rate falls below a certain point. If it does, an alarm is supposed to sound, alerting the operator of a low flow condition. If power is accidentally cut to the controller, the sensor's ability to notify the operator of a low flow condition could be lost. The system must alert the operator not only to low flow, but to controller power loss. To do this, connect the hot lead of the alarm to the NC side of the relay terminal of the controller. If power is lost, the relay will be de‐energized, and the alarm will sound (if there is still power to the alarm circuit itself). The alarm circuit should have a noninterruptible power supply or some other indicator or backup alarm to warn of a power failure in the alarm circuit. In this application, the normal status is when the sensor is in the flow condition, and the relay will be energized holding the alarm circuit open. Please note that the flow switch can be wired either normally closed ... -
Page 12: Flow Switch Calibration
FLOW SWITCH CALIBRATION Step Eight Set Points: If the preset factory calibration is not adequate for your application, follow the calibration steps listed below. Note: the switch's internal LED will be on when the switch detects no‐flow and will off when the switch detects flow. 1. Install the fitting and flow switch as described in the Installation section of this manual. Turn the flow switch and controller power on and adjust the flow rate to the application setting. If the medium to be sensed is likely to be subject to high temperature variations, the flow switch should be set at the highest normal temperature likely to be encountered. 2. Locate the potentiometer knob at the top of the flow switch. The red LED is visible through the potentiometer. (If the LED is on, slowly adjust the potentiometer ... -
Page 13: Appendix
APPENDIX Step Nine Controller Logic: Please use the following guide to understand the operation of the controllers. 1. Power LED: Make sure the Green power LED is ON when power is supplied to the controller. 2. Input LED: For NC switch wiring, the input LED on the controller will be Amber when the switch reads no‐ flow and OFF when the switch reads flow. 3. Invert Operation: When the input LED turn Off and On, the relay LED will also switch. With invert Off, the relay LED will be On when the input LED is On and Off when the input LED is Off. With invert On, the relay LED will be Off when the input LED is On and On when the input LED is Off 4. Relay Operation: The relay may be wired either NO or NC. The normal state of the relay is when its LED is Off. With the LED On, the relay is in the energized mode and all terminal connections are reversed. Troubleshooting: PROBLEM SOLUTION Controller is powered, but nothing First check the Power LED to make sure it is Green. If not, check happens. the wiring, power and make sure the terminal is seated correctly over the 6‐pins. A Flow or No‐Flow condition is Check ... -
Page 14: Warranty
WARRANTY, RETURNS AND LIMITAITONS Step Ten 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 of two years from the date of manufacture of such products. Flowline's obligation under this ...
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