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Summary of Contents for Halma ALICAT SCIENTIFIC LC
- Page 1 OPERATING MANUAL for LIQUID FLOW CONTROLLERS Models LC · LCR · LCS · LCRS...
- Page 2 • +1 888-290-6060 India China & SE Asia Europe india@alicat.com info-cn@alicat.com europe@alicat.com Halma India Pvt. Ltd. alicat.com.cn Geograaf 24 Plot NO. A-147, Road No. 24, 2nd Floor, Block 63, No. 421, 6921 EW Duiven Next to Spraytech Circle Hong Cao Rd, The Netherlands opp.
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Page 3: Introduction
Introduction Your new flow controller has a variety of innovative features: • 1000 readings per second ensures high resolution data. • Monitor pressure and temperature during flow measurement. View internal stream gauge pressure and temperature. • Backlit display with adjustable contrast is easy to read in direct sunlight. -
Page 4: Table Of Contents
Contents Introduction Using Laminar Liquid Flow Devices Getting Started The Flow Controller Display Status Messages Mounting Process Ports Filters Operating Pressure Bleed Ports Power and Signal Connections RS-232 or RS-485 Digital Signals Engineering Units Option: Collecting Totalized Flow Data Dispensing Liquid in Batches Option: Color TFT Display Navigation &... - Page 5 Serial Communication Configuring Serial Communications Establishing Communication Polling Mode Streaming Mode Taring Collecting Flow Data Commanding a New Setpoint Sending Setpoints as Floating Point Numbers Sending Setpoints as Integers Quick Command Guide Troubleshooting Maintenance Cleaning Recalibration Engineering Units Flow Units Totalizer Units True Mass Units Time Units...
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Page 6: Getting Started
Getting Started Getting to Know Your Liquid Flow Controller Connectors and Buttons The drawings below represent a typical configuration of a liquid flow controller. Your device’s appearance and connections may differ. I/O Port (shape varies) Display PSIG ¤C SETPT +0.00 +22.73 +0.00 +0.00... -
Page 7: The Flow Controller Display
The Flow Controller Display The figure below identifies the various features of the main flow controller display. Press the button behind the Alicat logo to toggle the backlight on and off. Live data is measured 1000 times per second and typically displayed 10 times per second on the device LCD screen. -
Page 8: Mounting
Mounting All liquid controllers have mounting holes for convenient attachment to flat panels. No straight runs of pipe are required upstream or downstream. Controllers are position insensitive and can be mounted in any orientation. ✓ If air bubbles are continuously introduced to the flow upstream of the device, the device may be mounted upside down to prevent bubbles from being trapped in the pressure sensor ports. -
Page 9: Operating Pressure
Operating Pressure Maximum operating line pressure is 100 psig. If the line pressure is higher than 100 psig, use a pressure regulator upstream to reduce the pressure. Maximum proof pressure is 200 psig; above this pressure the device may be permanently damaged. CAUTION! Exceeding the maximum specified line pressure may cause permanent damage to the solid-state differential pressure transducer. -
Page 10: Power And Signal Connections
Power and Signal Connections Power can be supplied to your controller through either the power jack or the multi-pin connector on top of your device. ✓ Controller power jacks require a 9–24 Vdc power supply with a 2.1 mm female positive center plug capable of supplying at least 250 mA, with an additional 40 mA for a color display. -
Page 11: Rs-232 Or Rs-485 Digital Signals
RS-232 or RS-485 Digital Signals To use the RS-232 or RS-485 digital signal, connect the Output Signal (Pin 5), the Input Signal (Pin 3), and Ground (Pin 8) to your serial port as shown below. See page 30 for details on serial communication and how to use the data connection to issue commands. -
Page 12: Engineering Units
Engineering Units The device’s units of measurement are handled in two ways: Button engineering units are the units of measurement on the front display. At right, they are PSIG (pressure), °C (temperature), and (flow rate). Device engineering units are the units of measurement used for calcu- lation and sent through a serial data connection. -
Page 13: Option: Collecting Totalized Flow Data
Option: Collecting Totalized Flow Data Controllers with a flow totalizer display the total volume that has flowed through the instrument since its last reset, like a gasoline pump. You can access the totalizer screen by pressing TOTAL/MENU on the Main Display. Totalizer (Optional) ... -
Page 14: Dispensing Liquid In Batches
Dispensing Liquid in Batches Batch dispensing allows you to choose a desired total volume to flow, after which the valve closes. You can repeat batches with a single button press. Totalizer – Batch Mode • TOTAL/TIMER opens the totalizer? SETPT •... - Page 15 How to repeat a batch • For a new batch of identical size, simply press RESET . Flow begins immediately. • For a new batch of a different size, press BATCH , and then select the new batch size. Flow begins as soon as you press How to cancel a batch •...
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Page 16: Option: Color Tft Display
Option: Color TFT Display Multi-Color Display Indicators • GREEN: Parameter labels and adjustments associated with the button directly above or below the label are presented in green. • WHITE: Parameters operating under normal conditions. • RED: Parameters with values exceeding 128% of the device’s specifications. -
Page 17: Navigation & Customization
Navigation & Customization Main Menu The Main Menu system is accessed by MENU pressing the button from the Main Display (page • CONTROL (page ABOUT (page 29), TARES (see below), BASIC CONFIG (page 18), and ADV SETUP (page 19) enter their menus. •... -
Page 18: Basic Configuration Menu
Basic Configuration Menu Engineering Units Changing device engineering units alters both the display and the serial data frame. First, choose the parameter whose unit you want to change, then select your desired engineering unit, and lastly confirm the change. If your controller has been configured with a flow totalizer, this screen will also include units for totalized volumetric flow, and elapsed time. -
Page 19: Advanced Setup
Advanced Setup → Menu Advanced Setup • SENSOR SETUP (see below), COMM SETUP (page 30), and DISP SETUP (page 20) enter their respective menus. BACK • returns to the top-level Main Menu (page 17). • MAIN exits to the Main Display (page →... -
Page 20: Display Setup
Display Setup → → Menu Advanced Setup Disp Setup • LCD CONTRAST sets the contrast level of the display, ranging from 0–31 on monochrome displays, and 0–11 on color displays. Press reset to revert to the default contrast level. POWER UP -DARK- -LIT- •... -
Page 21: Control Menus
Control Menus CONTROL ADV CONTROL menus allow you to command new setpoints, change the setpoint control loop, and adjust propor- tional, integral, and derivative (PID) control settings, among other options. → Menu Control • SETPT RAMP activates and sets the speed of setpoint ramping (page SETPT... -
Page 22: Using Setpoint Ramping
Using Setpoint Ramping Setpoint ramping regulates how quickly your flow controller will reach the requested flow or pressure setpoint. This is used to prevent sudden bursts of pressure or flow from hitting delicate instruments when you start up your process. To activate setpoint ramping, set a maximum ramp rate and configure when to enable the ramping function. -
Page 23: Changing Between Setpoint Sources
→ → → Menu Control Advanced Control Setpoint Source Changing Between Setpoint Sources Liquid flow controllers with RS-232/RS-485 and/or Modbus RTU commu- nication will accept setpoints from the front panel, a serial connection, or an analog signal. • When the source is set to Serial/Front Panel , the controller will accept input from either the front panel, or an RS-232/RS-485... -
Page 24: Establishing Setpoint Limits
Establishing Setpoint Limits The Setpoint Limits Menu configures upper and lower limits for selecting a flow or pressure control setpoint. • When using the front panel, if you try to command a new setpoint that is outside of the upper and lower limits, the display notifies you that the requested setpoint is out of range. -
Page 25: Enabling The Setpoint Ramping Function
Enabling the Setpoint Ramping Function Your flow controller enables the ramping function independently for changes that require increases or decreases to achieve the new setpoint. For example, you can enable ramping up to a flow setpoint to prevent flow from building too quickly, but disable ramping down so that you can stop flow immediately. -
Page 26: Limiting Flow Rate While Controlling Pressure
Limiting Flow Rate While Controlling Pressure To limit flow rates directly while controlling pressure, configure flow → → MENU CONTROL ADV CONTROL limiting for pressure control by selecting → → CONTROL OPTS CLP MAX FLOW . Press CLP MAX FLOW to set the desired maximum flow rate. -
Page 27: Adjusting The Closed Loop Controller
Adjusting the Closed Loop Controller Your flow controller uses an electronic closed loop controller to determine how to actuate its valve in order to achieve the commanded setpoint. We have tuned these settings for your specific operating conditions, but changes to your process sometimes require on-site adjustments to maintain optimal control performance. - Page 28 Tuning the PD²I control algorithm The controller’s PD²I control algorithm (also called PDDI) is used to provide faster response, most commonly in dual-valve flow and pressure controllers. • The larger the P gain, the more aggressively the controller will correct errors between the commanded setpoint and the measured process value.
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Page 29: Device Information
Device Information → Menu About • DEVICE INFO displays serial number, firmware revision, and calibration information. DEVICE STATE • displays diagnostic information for troubleshooting (see below). • MFG INFO displays manufacturer contact information. • BACK returns to the Main Menu (page 17). -
Page 30: Serial Communication
Serial Communication Configuring Serial Communications → → Menu Advanced Setup Comm Setup Connecting your device to a computer allows you to log the data that it gener- ates. The flow controller communicates digitally through its communications connector and cable using a real or virtual COM port on your computer. -
Page 31: Establishing Communication
Baud Rate Baud rate is the speed at which digital devices transfer information. The flow controller has a default baud rate of 19200 baud. Baud rate changes take effect once you press . The computer, device, and software must all have the same baud rate. Establishing Communication After connecting your flow controller... -
Page 32: Polling Mode
✓ Note: In what follows, indicates an ASCII carriage return (decimal 13, hexadecimal D). Serial commands are not case-sensitive. Polling Mode Controllers are shipped in polling mode with a unit ID of A, unless requested otherwise. Each poll returns one line of data. To poll, simply enter its unit ID. -
Page 33: Taring
Taring Tare your flow controller before collecting flow data. If auto-tare is enabled, provide a zero setpoint until auto-tare activates, usually after a few seconds, depending on the device’s full-scale flow rate. The controller can also be tared automatically using auto-tare, or manually from the front panel. -
Page 34: Commanding A New Setpoint
Commanding a New Setpoint Before attempting to send setpoints to your flow controller serially, confirm → that its setpoint source is set to Serial/Front Panel by selecting MENU → → CONTROL ADV CONTROL SETPT SOURCE There are two ways to command a new setpoint over a serial connection, as described below. -
Page 35: Quick Command Guide
Quick Command Guide ✓ Note: Serial commands are not case-sensitive. In these examples, the unit ID of the flow controller is [current unit ID]@=[desired unit ID] Change unit ID: Tare flow: av Tare pressure: ap Poll the live data frame: a ... -
Page 36: Troubleshooting
Troubleshooting If you run into trouble with your device’s installation or operation, please get in touch with us (see page 2). You’ll also find help on our website alicat.com and in the pages that follow. General Use Issue: My controller does not turn on or has trouble staying on. Action: Check power and ground connections. - Page 37 Flow Readings Issue: The live flow readings won’t settle down. Action: The flow controller is very fast, so it can detect subtle variations in flow that may go unnoticed by your other flow devices. This sensitivity can help detect problems with pumps or flow controllers. You can lessen this sensitivity by increasing the flow averaging press →...
- Page 38 Issue: My controller does not agree with another controller I have in line. Action: Liquid flow controllers can normally be compared against one another provided there are no leaks between the two controllers. One common cause of inaccuracy, inconsistency, or unusual readings is air bubbles trapped in one or both of the legs of the differential pressure sensor.
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Page 39: Maintenance
Maintenance Cleaning This device requires minimal maintenance. If necessary, the outside of the device can be cleaned with a soft dry cloth. Avoid excess moisture or solvents. The primary cause of damage and/or long-term inaccuracy in these devices is contamination and/or corrosion damage. Liquid should be filtered for particulates or biological materials that may grow in the device (see page 8). -
Page 40: Engineering Units
Engineering Units Flow Units True Mass Units Label Notes Label Notes µL ∕m microliter per minute* mg∕s milligram per second mL ∕s milliliter per second mg∕m milligram per minute mL ∕m milliliter per minute g∕s gram per second mL ∕h milliliter per hour g∕m gram per minute... -
Page 41: Pressure Units
Pressure Units Label Notes pascal hPaG hectopascal kPaG kilopascal MPaG megapascal mbarG millibar barG g∕cm²G gram force per square centicontroller* kg∕cm²G kilogram force per square centicontroller*† PSIG pound force per square inch PSFG pound force per square foot mTorrG millitorr torrG torr mmHgG... -
Page 42: Pinouts
Pinouts Check the calibration data sheet and pinout for your device. page 30 for additional important information about connecting your device to a computer for serial commands. Individual pinouts available at alicat.com/pinout. 8-Pin Mini-DIN (Default) Female Connector: Device Male Connector: Cable Pin Cable Color Function Not connected... -
Page 43: Locking Industrial Connector Pinout
Locking Industrial Connector Pinout Male Connector: Cable Female Connector: Device Function Power In (+) RS-232TX / RS-485 B RS-232RX / RS-485 A Analog Setpoint Input Ground (common for power, communications, and signals) Signal Out (voltage or current as ordered) ✓ Note: The availability of different output signals depend on the options ordered. -
Page 44: 9-Pin D-Sub Connector Pinouts
9-pin D-Sub Connector Pinouts Female Connector Male Connector Common 9-pin D-Sub Pinouts DB9 (Female) DB9A / DB9M (Male) DB9K DB9R DB9T DB9U Current Out TX or B TX or B RX or A Analog Out 2 Analog Out Analog Out Analog Out Analog Out RX or A... -
Page 45: M12 Connector Pinouts
M12 Connector Pinouts Common M12 Pinouts Pin M12 M12MD 0–5 Vdc output signal Not connected Optional: 1–5 or 0–10 Vdc Optional: 4–20 mA primary output signal Static 5.12 Vdc Optional: Secondary analog output Power in (4–20 mA, 0–5 Vdc, 1–5 Vdc, 0–10 Vdc) or basic alarm Serial RS-232 RX signal Serial RS-232 RX signal... -
Page 46: 15-Pin D-Sub Connector Pinouts
15-Pin D-Sub Connector Pinouts Female Connector: Device Male Connector: Cable Common 15-pin D-Sub Pinouts DB15 DB15A DB15B DB15H DB15K DB15O DB15S Ground Ground Ground Ground Ground Analog Out Analog Out Analog Out RX or A Analog Out Analog Out Ground Analog In Ground Analog Out... -
Page 47: Additional Information For Csa And Atex Approved Devices
Additional Information for CSA and ATEX Approved Devices II 3 G Ex ec IIC T4 Gc Sira 19ATEX4045X Class I, Division 2, Group A, B, C and D, T4 24 Vdc, 0.800A maximum • Tamb −40°C to +60°C Ex ec IIC T4 Gc Class 1, Zone 2 AEx ec IIC T4 Gc CSA 08CA2009485X CSA and ATEX approved devices are equipped with a 6-pin locking industrial connector, but may be ordered... -
Page 48: Limited Lifetime Warranty
Limited Lifetime Warranty Notice: Alicat Scientific, Inc. reserves the right to make any changes and improvements to the products described in this manual at any time and without notice. This manual is copyrighted. This document may not, in whole or in part, be copied, reproduced, translated, or converted to any electronic medium or machine readable form, for commercial purposes, without prior written consent from the copyright holder. - Page 49 LIQUID FLOW CONTROLLER operating manual...
- Page 50 Main Menu Accessible from MENU on the Main Display • Control (page • Setpoint ramping • Setpoint setting • Advanced Control • Setpoint source • Loop setup • Control options • About (page • Device information • Manufacturer information • Device state •...
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