Alicat Scientific 16 Series Operating Manual

Precision water flow meter and water flow controller
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Operating Manual
16 Series
Precision Water Flow Meter
and Water Flow Controller
Innovative Flow and Pressure Solutions

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Summary of Contents for Alicat Scientific 16 Series

  • Page 1 Operating Manual 16 Series Precision Water Flow Meter and Water Flow Controller Innovative Flow and Pressure Solutions...
  • Page 2 Limited Lifetime Warranty Alicat Scientific, Inc. warrants to the original purchaser (hereinafter referred to as “Buyer”) that instruments manufactured by Alicat Scientific (hereinafter referred to as “Product”) shall be free from defects in materials and workmanship for the life of the Products.
  • Page 3: Table Of Contents

    Table of Contents Page Flow Measurement Operating Principle Flow Control Operating Principle Installation Plumbing Mounting Application Bleed Ports Power and Signal Connections Analog Input Signal RS-232 Digital Input Signal RS-232 Digital Output Signal Standard Voltage (0-5 Vdc) Output Signal Optional 0-10 Vdc Output Signal Optional Current (4-20 mA) Output Signal Optional 2nd Analog Output Signal L Series Water Flow Meter Operation Main Mode Tare Line Pressure...
  • Page 4 Table of Contents Page Communication Select Manufacturer Data Miscellaneous Mode RS-232 Output and Input Configuring HyperTerminal® Changing from Streaming to Polling Mode Tareing via RS-232 Sending a Set-Point via RS-232 Adjusting P & D Terms via RS-232 Collecting Data Data Format Sending a Simple Script File to HyperTerminal® Troubleshooting Maintenance and Recalibration Flow Conversion Table...
  • Page 5: Flow Measurement Operating Principle

    Thank you for purchasing an L Series Water Flow Meter or LC Water Flow Controller. Please take the time to find and read the information contained in this manual. This will help to ensure that you get the best possible service from your instrument. This manual covers the following Alicat Scientific instruments:...
  • Page 6: Flow Control Operating Principle

    Flow Control Operating Principle For the purposes of this explanation, the term “valve” will refer to the proportional control valve mounted on the controller. The term “controller” will refer to the flow meter and the measurement and control electronics portion of the device. In actuality, the whole device is generally referred to as a controller. The valve normally mounted downstream of the controller.
  • Page 7: Installation

    Installation Plumbing All L Series Meters and LC Series Controllers are equipped with female inlet and outlet port connections. Because the flow meters set up a laminar flow condition within the flow body, no straight runs of pipe are required upstream or downstream of the meter. The inlet and outlet ports are equal in size and symmetric (in-line).
  • Page 8: Bleed Ports

    Bleed Ports Alicat Scientific L and LC Series flow meters and controllers are equipped with bleed ports on the front to aid in the removal of air bubbles from the differential pressure sensor ports. The bleed ports consist of a threaded hole with an 8-32 nylon tipped screw as shown in Figure 1. After installation or anytime it is suspected that air may be trapped in the sensor ports, bleed the ports as follows: CAUTION: A small amount of water will leak from the device during this procedure.
  • Page 9: Power And Signal Connections

    Power and Signal Connections Power can be supplied to your meter or controller through either the AC/DC adapter jack or through the 8 pin Mini-DIN connector as shown in Figure 1. A 2.1mm, positive center, 7-30 Vdc AC/DC adapter rated for at least 100 mA is required to use the adapter jack in a L Series meter.
  • Page 10: Analog Input Signal

    Analog Input Signal Apply analog input to Pin 4 as shown in Figure 2. Unless ordered otherwise, 0-5 Vdc is the standard analog input signal. Apply the 0-5 Vdc input signal to pin 4, with common ground on pin 8. The 5.12 Vdc output on pin 2 can be wired through a 50K ohm potentiometer and back to the analog input on pin 4 to create an adjustable 0-5 Vdc input signal source as in Figure 3 below.
  • Page 11: Standard Voltage (0-5 Vdc) Output Signal

    Standard Voltage (0-5 Vdc) Output Signal All L and LC Series flow meters/controllers have a 0-5 Vdc (optional 0-10 Vdc) output signal available on Pin 6. This is generally available in addition to other optionally ordered outputs. This voltage is usually in the range of 0.010 Vdc for zero flow and 5.0 Vdc for full-scale flow.
  • Page 12: Figure 5. Typical Multiple Device (Addressable) Wiring Configuration

    Unit A Purple Yellow Unit B Purple Yellow Unit C Female Serial Cable Front Figure 5. Typical Multiple Device (Addressable) Wiring Configuration Note: The easiest way to connect multiple devices is with a Multi-Drop Box (see page 38). An optional industrial connector is also available: Function Cable Color Power In ( RS-232 Output...
  • Page 13: L Series Water Flow Meter Operation

    L Series Water Flow Meter Operation The L Series can have several screen “modes” depending on how the device is ordered. All L Series meters have a default Main Mode, Select Menu Mode, a Communication Select Mode, a Manufacturer Data Mode and a Miscellaneous Mode. (In addition, your meter may have been ordered with the Totalizing Mode option, see page 34.) The device defaults to Main Mode as soon as power is applied to the meter.
  • Page 14: Line Pressure

    Line Pressure – Pressing the dynamically labeled PSIG button located in the upper left corner of the display will move the line gauge pressure to the primary display. Line Temperature – Pressing the dynamically labeled °C button located in the upper middle of the display will move the process temperature to the primary display. Volume – The volume flow rate is defaulted on the primary display. Pressing the dynamically labeled “Volume”...
  • Page 15: Communication Select Mode

    Communication Select Mode The Communication Select mode is accessed by pressing the button below “Comm. RS-232” on the Select Menu display. The screen will appear as shown in Figure 10 below. Select > Unit ID (A)..A Baud (19200)..19200 Data Rate..Fast Comm.
  • Page 16: Manufacturer Data

    7). The “Mfg 1” display shows the name and telephone number of the manufacturer. The“Mfg 2” display shows important information about your flow meter including the model number, serial number, and date of manufacture. Main Alicat Scientific, Inc. Ph 520-290-6060 Fax 520-290-0109 Mfg 1...
  • Page 17: Lcd Contrast

    Select Main > LCD Contrast ( 10 ) . PVM DBand ( 0.5 FS ) PRESS Avg ( 008 ) . . . FLOW Avg ( 100 ) ..DOWN Misc Figure 12. Miscellaneous Display LCD Contrast: The Liquid Crystal Display Contrast can be adjusted between 0 and 30 with zero being the lightest contrast and 30 being the darkest contrast.
  • Page 18: Lc Series Volumetric Flow Meter Operation

    LC Series Water Flow Controller Operation The LC Series can have several screen “modes” depending on how the device is ordered. All LC Series controllers have a default Main Mode,a Select Menu Mode, a Control Setup Mode, a Communication Select Mode, a Manufacturer Data Mode and a Miscellaneous Mode. (In addition, your controller may have been ordered with the Totalizing Mode option, see page 34.) The device defaults to Main Mode as soon as power is applied to the meter.
  • Page 19: Select Menu Mode

    Select Menu Mode Pushing “Mode” once will bring up the “Select Menu” display (Figure 9, page 14). Push the button nearest your selection to go to the corresponding screen. Push “Mode” again to return to the Main Mode display. (Note: If your meter was ordered with Totalizing Mode option (page 34), pushing the “Mode”...
  • Page 20: Loop

    Serial refers to a remote digital RS-232 set-point applied via a serial connection to a computer or PLC as described in the Installation and RS-232 sections of this manual. CAUTION! N ever leave a oNtroller with aNy NoN zero set poiNt if No pressure is available to make flow he CoNtroller will apply full power to the valve iN aN attempt to reaCh the set...
  • Page 21: Communication Select

    Communication Select Mode The Communication Select mode is accessed by pressing the button below “Comm. RS-232” on the Select Menu display. Please see page 15 for Communication Select mode instructions. Manufacturer Data Mode “Manufacturer Data” is accessed by pressing the “Mfg. Data” button on the Select Menu display (Figure 9, page 14).
  • Page 22: Tareing Via Rs-232

    Once you have established communication with the unit and have a stream of information filling your screen: Type *@=A followed by “Enter” (or using the RS-232 communcation select menu, select A as identifier and exit the screen) to stop the streaming mode of information. Note that the flow of information will not stop while you are typing and you will not be able to read what you have typed.
  • Page 23: Adjusting P & D Terms Via Rs-232

    To adjust the Proportional and Differential (P&D) terms via RS-232 (LC Series only): Type *@=A followed by “Enter” to stop the streaming mode of information. To adjust the “P” or proportional term of the PID controller, type *R21 followed by “Enter”. The computer will respond by reading the current value for register 21 between 0-65535. It is good practice to write this value down so you can return to the factory settings if necessary. Enter the value you wish to try by writing the new value to register 21.
  • Page 24: Collecting Data

    Collecting Data: The RS-232 output updates to the screen many times per second. Very short-term events can be captured simply by disconnecting (there are two telephone symbol icons at the top of the HyperTerminal® screen for disconnecting and connecting) immediately after the event in question. The scroll bar can be driven up to the event and all of the data associated with the event can be selected, copied, and pasted into Microsoft®...
  • Page 25: Sending A Simple Script File To Hyperterminal

    Sending a Simple Script File to HyperTerminal® It is sometimes desirable to capture data for an extended period of time. Standard streaming mode information is useful for short term events, however, when capturing data for an extended period of time, the amount of data and thus the file size can become too large very quickly. Without any special programming skills, the user can use HyperTerminal®...
  • Page 26: Troubleshooting

    After installation, there is no flow. Alicat Scientific LC Series controllers incorporate normally closed valves and require a set-point to operate. Check that your set-point signal is present and supplied to the correct pin and that the correct input is selected under the Input list in the control set up mode screen. Also check that the unit is properly grounded.
  • Page 27 Controller is slow to react to a set-point change or imparts an oscillation to the flow. An inappropriate PID tuning can cause these symptoms. Use at conditions considerably different than those at which the device was originally set up can necessitate a re-tuning of the PID loop. Flow flutters or is jumpy.
  • Page 28: Maintenance And Recalibration

    Cleaning: L and LC Series Flow Meters require no periodic cleaning. If necessary, the outside of the meter can be cleaned with a soft dry rag. Avoid excess moisture or solvents. For repairs, recalibrations, or recycling of this product, contact: Alicat Scientific, Inc. 2045 N Forbes Blvd. Bldg.103 Tucson, Arizona 85745 Ph. 520-290-6060 Fax 520-290-0109 email: info@alicatscientific.com...
  • Page 29: Technical Specifications

    Technical Data for Water Flow Meters & Water Flow Controllers Specification L Series LC Series LCR Series Description Available Ranges 0.5CCM to 10LPM 0.5CCM to 500CCM 1LPM to 5LPM Full Scale Accuracy ± 2 % Full Scale Repeatability ± 2 % Full Scale Operating Range 2% to 100% Full Scale Measure or Control...
  • Page 30               Alicat Scientific, Inc.               2045 N. Forbes Blvd. Suite 103 Tucson, AZ 8 ...
  • Page 31               Alicat Scientific, Inc.               2045 N. Forbes Blvd. Suite 103 Tucson, AZ 8574 ...
  • Page 32 Date              Alicat Scientific, Inc.              2045 N. Forbes Blvd. Suite 103 Tucson, AZ 85745 ...
  • Page 33       Rev. No. Description Date       Alicat Scientific, Inc.               2045 N. Forbes Blvd. Suite 103 Tucson, AZ 85745 ...
  • Page 34: Option: Totalizing Mode

    Option: Totalizing Mode L and LC Series Flow Meters and Controllers can be purchased with the Totalizing Mode option. This option adds an additional mode screen that displays the total flow (normally in the units of the main flow screen) that has passed through the meter or controller since the last time the totalizer was cleared. The Totalizing Mode screen shown below is accessed by pushing the “MODE”...
  • Page 35: Option: Battery Pack

    Option: 9 Volt Battery Pack A Battery Pack that uses a common 9 Volt battery can be mounted to the top of your L Series Flow Meter. Power is passed from the battery to the flow meter through the 8 pin Mini-DIN connector. Output signals from the flow meter or pressure guage are passed through the male connector on the bottom of the battery pack to the female connector on top of the battery pack so the signals can be accessed normally. Turn the switch on top of the battery pack off when the meter is not in use. (Note: The Battery...
  • Page 36 Battery Pack Installation and Removal: The battery must be removed before the battery pack can be installed or removed. Remove the back cover of the battery pack and remove the battery if installed (see “Replacing the Battery”). Carefully place the battery pack on top of the flow meter, being especially careful that the pins in the 8 pin Mini-DIN plug are inserted properly into the 8 pin Mini-DIN socket on top of the flow meter.
  • Page 37: Option: Local Set-Point Module

    Option: Local Set-Point Module The Local Set-Point Module (LSPM) is designed to provide the user with a simple “turn of the dial” method of changing a flow or pressure controller set-point. The LSPM features a set-point control dial, a digital DC-62 Double Ended LED display which can be set to show either the 8Pin Mini-DIN Cable...
  • Page 38: Option: Remote Electronics

    Option: Remote Electronics for High Line or Gas Temperatures Some applications involve operating temperatures outside the standard Alicat device specifications. A solution using remote electronics is available. (This option is not applicable to liquid devices.) The flow body’s components are minimized to only the required sensors. The flow data is sent to the microprocessor electronics up to 6 feet away from the sensor package. Relocating the sensitive electronics, including the LCD, allows for installation of the flow body in ambient temperatures as high as 85°...
  • Page 39: Accessory: Flow Vision

    Accessory: Flow Vision™ Software Flow Vision™ is an intuitive software interface to help your experimental test cycles run smoother and make your integration engineering time shorter! This easy to use software features a simple graphical user interface, multiple device management capabilities and straightforward script building for controller command sequences. Automatic Configuration: Automatically finds and configures Alicat devices connected to your computer. Session Saving: Your current configuration data can be saved and reloaded for ease of experiment repetition.
  • Page 40: Accessories

    Accessories Part Number Description FVISION Flow Vision™ software for interface with all Alicat instruments BB-9 Multi-Drop Box REMOTE Remote electronics with display LSPM Local Set-Point Module (Controllers Only) BPACK 9 volt battery pack (Meters and Gauges Only) PCASE Industrial carry and storage case for portable meters/gauges DC-61 8 Pin Male Mini-DIN connector cable, single ended, 6 foot length DC-62...

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