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Troubleshooting
Related Manuals for OSI OFS-2000FW
Summary of Contents for OSI OFS-2000FW
- Page 1 OFS 2000FW User’s Guide Optical Scientific Inc User's Guide OFS -2000FW Optical Flow Sensor 03/28/13 OPTICAL SCIENTIFIC INC 2 Metropolitan Ct, Suite 6 Tel: +1-301-963-3630 Gaithersburg, MD 20878 USA Fax: +1-301-948-4674 www.opticalscientific.com P/N 1910-901-1...
- Page 2 Update OFS 2000W Wiring Diagram in Appendix A p39 Re-written & re-organized to include –FW model, Thermal Activator, enhanced Purge 03/28/2013 and Z-Purge sections, updated procedures and specifications. OFS-2000 Certifications UL 3101-1:1993 CSA C22.2 No. 1010.1:92 IEC 61010:1999 OSi is an ISO-9001 Registered Company P/N 1910-901-1 Rev. 03/28/13...
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Page 3: Table Of Contents
OFS 2000FW User’s Guide Optical Scientific Inc Table of Contents 1 OFS -2000FW OVERVIEW .......................... 1 1.1 Theory of Operation ..........................1 1.2 OFS -2000FW Specifications ........................ 2 1.3 Description of Units ..........................3 1.4 Transmitter (TX) Unit ..........................4 1.5 OFS 2000FW Receiver (RX) Unit ...................... - Page 4 OFS 2000FW User’s Guide Optical Scientific Inc 8.1.1 Visual Indicators ..........................44 8.2 OFS Start-Up ............................45 8.2.1 OFS Initial Display Sequence ......................46 8.2.2 Display and Keypad ........................47 8.2.3 Check Firmware Version Procedure ....................49 8.2.4 Correction Factor ...........................50 8.2.5 Curve Fitting ..........................50 8.2.6 Calibration Verification ........................51 8.3 External Calibration (RATA) .........................52 9 Maintenance ...............................53...
- Page 5 OFS 2000FW User’s Guide Optical Scientific Inc Table of Figures Figure 1.1 OFS Basic Components ......................... 1 Figure 1.2 OFS 2000FW System Components....................3 Figure 1.3 OFS 2000FW Transmitter ......................4 Figure 1.4 OFS 2000FW Receiver ........................5 Figure 1.5 OFS Control Box (Outdoor) ......................6 Figure 1.6 Control Box Interior ........................
- Page 6 OFS 2000FW User’s Guide Optical Scientific Inc Figure 6.9 Beam Centering ..........................41 Figure 6.10 Front Panel Display (example) ....................41 Figure 6.11 Filter Material Insertion ........................42 Figure 8.1 Transmitter LEDs ..........................44 Figure 8.2 Receiver LEDs ..........................44 Figure 8.3 DSP Power LEDs..........................44 Figure 8.4 Correction Factor Display ......................50 Figure 9.1 Window Cleaning ..........................54 Figure 10.1 DSP Power Indicators .........................57...
- Page 7 OFS 2000FW User’s Guide Optical Scientific Inc Caveats Only trained personnel are allowed to service this equipment. The OFS shall only be used in a manner specified by the manufacturer. This equipment contains hazardous voltages. Disconnect AC power before servicing. Optical Scientific, Inc.
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Page 8: Ofs -2000Fw Overview
OFS 2000FW User’s Guide Optical Scientific Inc 1 OFS -2000FW OVERVIEW 1.1 Theory of Operation Scintillation is the variation of light caused by it’s passage through pockets of air with different temperature and density. It’s what makes the stars seem to twinkle in the night sky. OFS uses scintillation in air flow to determine velocity. -
Page 9: Ofs -2000Fw Specifications
OFS 2000FW User’s Guide Optical Scientific Inc 1.2 OFS -2000FW Specifications Flow Performance Technique Optical scintillation Velocity Range 0.03 to 100 m/s velocity Accuracy 2% of reading Resolution 0.1 m/s Response Time User selectable: 3 sec to 600 sec Long Term Drift <1% >per year 2 –... -
Page 10: Description Of Units
OFS 2000FW User’s Guide Optical Scientific Inc 1.3 Description of Units The OFS -2000FW model has three main elements: Transmitter (TX) Unit [1910-100-1] Receiver (RX) Unit [1910-200] Control Box [1910-301 outdoor / 1910-500 indoor (rack-mount)] The TX and RX Units use identical packaging to house the optical and electronic subsystems. All parts are made from powder-coated aluminum, and are weather tight. -
Page 11: Transmitter (Tx) Unit
OFS 2000FW User’s Guide Optical Scientific Inc 1.4 Transmitter (TX) Unit The OFS 2000FW TX Unit, P/N 1910-100-1, consists of two major parts, the housing and the flange adapter. Figure 1.3 illustrates the major components of the OFS 2000FW TX Unit. The OFS TX and RX units (with integral spool piece) are designed to mate to an ANSI 150 # 4”... -
Page 12: Ofs 2000Fw Receiver (Rx) Unit
OFS 2000FW User’s Guide Optical Scientific Inc 1.5 OFS 2000FW Receiver (RX) Unit The RX Unit, P/N 1910-200 is equipped at the factory with an interconnecting cable [1910-810] for the AGC option. The Receiver consists of two major parts, the housing and the flange adapter (spool piece). Figure 1.4 illustrates the major components of the RX unit. -
Page 13: Control Box(Es) Indoor And Outdoor
OFS 2000FW User’s Guide Optical Scientific Inc 1.6 Control Box(es) Indoor And Outdoor Control Boxes, [1910-301 and 1910-500], contain the same components. The only difference is in the packaging and component arrangement. 1910-301 Outdoor Control Box is housed in an enclosure that meets NEMA-4 standards (NOTE: a NEMA-4X enclosure is also available) 1910-500 Indoor Control Box is housed in a conventional 19”... -
Page 14: Indoor Control Box
OFS 2000FW User’s Guide Optical Scientific Inc 1.6.2 Indoor Control Box Control Module This board is used to display functions, control and set system operating parameters. a fluorescent display [A1] and keypad [A2] are provided on the front panel for setup and display of real-time information. -
Page 15: Pre - Installation
The OFS will measure at any distance from 0.15 to 10 meters. Other distances are possible. Again consult OSI if you have questions regarding proper placement. Note: In cases like these, it is advisable to mount the units so that the light beam is aligned along the axis of the upstream bend. -
Page 16: Flange Alignment Guidelines
Sensible precautions and attention to detail should be all that is required to complete the job properly. We recommend that the user study: OFS 2000 User’s Guide “Installation Considerations” OSI Brochure “OFS Placement Advantage” Stack Wall A typical basic installation is shown here at right. -
Page 17: Flange Mounting Examples
OFS 2000FW User’s Guide Optical Scientific Inc 2.3 Flange Mounting Examples Proper Improper Flange Alignment Flange Alignment OFS Transmitter and One (or both) flanges Receiver are aligned on installed crookedly, the the same axis. The Transmitter and Receiver flanges and openings will will be at angle to each have a straight view of other. -
Page 18: Flange Pipe Extension
OFS 2000FW User’s Guide Optical Scientific Inc 2.4 Flange Pipe Extension In some instances it may be to the customer’s advantage to have the mounting flange pipe section extend into the stack instead of fitting flush with the stack wall. Flush fit or protrusion makes no appreciable difference in accuracy of OFS flow measurement. -
Page 19: Flange Pipe Mounting
150# pipe flanges commonly used in industry. The standard dimensions are shown at right in Figure 2.6. Note that the OSI convention is to have a bolt hole at top dead center. The people mounting the nozzle and flange will have to know this before they do their installation. -
Page 20: Installation
OFS 2000FW User’s Guide Optical Scientific Inc 3 Installation General installation is described here. 3.1 Required at Transmitter or Receiver Location 4-inch ANSI 150# pipe flange (9 inch diameter) Instrument - grade air at 2 CFM per head (See notes in Sections 3.4 “Purge Air” and 3.6 “Z-Purge Air”) Required at Transmitter (in addition to above) Single phase, 100-240 VAC, 50/60 Hz @ 1 A power with appropriately rated and approved power disconnect device adjacent to OFS... -
Page 21: Mechanical
OFS 2000FW User’s Guide Optical Scientific Inc 3.3 Mechanical 3.3.1 TX/RX Units Attach the OFS TX & RX Units to the user-supplied flanges using the hardware as shown in Figure 3.3. Mounting hardware for installation of the units is included. The top view with dimensions in inches for the TX/RX head with Flange Adapter is shown in Figure 3.4. -
Page 22: Figure 3.4 Ofs Tx/Rx Overall Dimensions
OFS 2000FW User’s Guide Optical Scientific Inc Figure 3.4 OFS TX/RX Overall Dimensions Units = inches. P/N 1910-901-1 Rev. 03/28/13... -
Page 23: Control Units
OFS 2000FW User’s Guide Optical Scientific Inc 3.3.2 Control Units 3.3.2.1 Control Box (Outdoor) Figure 3.5 Outdoor Control Box Mounting Dimensions Note: Depth = 9.5 inches. The Control Box may be mounted to a wall or other surface with user-supplied hardware. It should be located within 15 feet of the RX Unit if the standard P/N 1910-217 cable was ordered. -
Page 24: Purge Air
OFS 2000FW User’s Guide Optical Scientific Inc 3.4 Purge Air The OFS 2000FW, being an optical measuring device, needs to “see” clearly. The function of purge air is to keep the interior atmosphere of the mounting nozzle clear, the light path unobstructed, and provide an air barrier to slow the rate of deposition on the window. -
Page 25: Figure 3.11 Purge Air At 90° To Vertical Flow
It is recommended that a regulator and rotameter be installed near the OFS heads to control the airflow. OSI can supply a rotameter (1910-453) specifically tailored for OFS use. -
Page 26: Ofs In Hazardous Or High Temperature Applications
In these cases installation of a gate valve and sight glass is also recommended. OSI offers these two components as options which may be ordered with the systems. They are 1910-420 Cast Iron Gate Valves (2 required per system) -
Page 27: Pressurization Air (Z-Purge Air)
When applied together they may be supplied from the same primary source, but their control and application must be independent. Customers may elect to configure their pressurization systems to meet their own standards and practices. OSI offers an equipment package which meets established North American requirements and has been found to work satisfactorily. This package and recommended configuration is, “designed to protect electrical... -
Page 28: Figure 3.16 Typical Z-Purge Control Unit
OFS 2000FW User’s Guide Optical Scientific Inc Type Z applications reduce the hazardous location rating inside the enclosure from Division 2/ Zone 2 to non-hazardous. This allows general purpose equipment to operate in Division 2/ Zone 2 areas. This unit is designed to meet or exceed NEC - NFPA 70, NFPA 496, EN 50016 and IEC 60079-02... -
Page 29: Unit Tubing Instructions
OFS 2000FW User’s Guide Optical Scientific Inc Z-Purge connection to the Control box is straightforward as shown. The Purge Vent is a gravity-operated enclosure pressure relieving device designed to relieve excess pressure inside a protected enclosure while preventing any sparks or burning material from escaping into a classified location. -
Page 30: Pressurization Unit Operation
OFS 2000FW User’s Guide Optical Scientific Inc 5. Slowly turn Enclosure Pressure Control Regulator CW until a “Safe” 0.5” w.c. reading is shown on the Enclosure Pressure Gauge. Note: If unable to achieve a “ Safe” enclosure pressure, carefully check all enclosure connections and doors for leakage. Seal as needed. 6. -
Page 31: Ac Power Connections
OFS 2000FW User’s Guide Optical Scientific Inc 3.7 AC Power Connections Power Requirements: single phase, 100-240 VAC, 50/60 Hz @ 1 A. 3.7.1 Transmitter Unit AC power connections to the TX Unit are made to TB1 of the TX circuit board located on the left inside of the TX housing. -
Page 32: User Interface Connections
OFS 2000FW User’s Guide Optical Scientific Inc 3.8 User Interface Connections The OFS has two communication modes: 4-20mA Current Loop Output RS-232 Serial Data Output Figure 3.21 User Interface Connections The 4-20mA current loop connections are at The RS-232 link is found at Receiver cable 1910- terminal block TB3 pins 1 and 2. -
Page 33: Ofs 2000Fw Interconnecting Cables
OFS 2000FW User’s Guide Optical Scientific Inc 3.9 OFS 2000FW Interconnecting Cables The OFS 2000FW cables are connected as shown in Figures 3.22 and 3.23. The Receiver Cable 1910-217 supplies DC power to the receiver electronics, and signal data to the Digital Signal Processor (DSP) in the control unit. -
Page 34: Agc Cable Connections For Ofs 2000Fw Models
OFS 2000FW User’s Guide Optical Scientific Inc 3.10 AGC Cable Connections for OFS 2000FW Models Figure 3.24 TX AGC Cable Connection Figure 3.25 RX AGC Cable Connection 3.11 OFS Receiver Cable OFS Receiver Cable (1910-217) is supplied in standard length of 15 feet. Customers may order extra length up to 400 feet using the following number scheme ex. -
Page 35: Ma Current Loop And Relay Connections
OFS 2000FW User’s Guide Optical Scientific Inc 3.12 4-20 mA Current Loop And Relay Connections The terminal block TB3 of the interface board connects to isolated 4-20 mA circuitry, diagnostic relay, calibration relay and calibration check request interface. The pin designation is as follows: Pin 1: Current Loop –... -
Page 36: Rs-232 Connections
OFS 2000FW User’s Guide Optical Scientific Inc 3.13 RS-232 Connections The OFS Interface Board J2 Personal Computer Laptop computer DB25 serial port (DCE) DB-25 serial port (DTE) DB-9 serial port Pin 2: Pin 2: Pin 2: Pin 3: Pin 3: Pin 3: Pins 1 and 7: Return... -
Page 37: Fiber Optic Modem (Fom) Connections
OFS 2000FW User’s Guide Optical Scientific Inc 3.13.2 Fiber Optic Modem (FOM) Connections The FOM option is available for installations where the Control Box must be connected via a fiber to the user’s computer. The FOM converts the RS-232 levels to light pulses for noise free, long distance transmission. Using two multi-mode fibers (62.5/125), the FOM will transmit over 1 mile at 28.8 kbps. -
Page 38: Computer Connection
The computer outputs a delimited text file that can be imported into a spreadsheet and plotted or analyzed. An advantage of OSI’s SQC software is that it creates a time stamp for every line of data so that events can be easily compared with process data. -
Page 39: Poll Commands & Data Output
OFS 2000FW User’s Guide Optical Scientific Inc 4 Poll Commands & Data Output When being operated in RS-232 mode the OFS outputs conventional ASCII data strings in response to single character poll commands sent by the user’s Data Acquisition System (DAS) or computer. Besides use in ordinary operation, the poll commands and resulting data outputs can be useful in determining system status, diagnostics, and troubleshooting. -
Page 40: C" Poll Response Bytes
OFS 2000FW User’s Guide Optical Scientific Inc 4.2.1 “C” Poll Response Bytes Field Byte Description Details Symbol Fixed Field – Velocity Wind Indicator Comma delimiter Wind Direction ± "+" represents flow in direction of arrow in RX Unit Represents air velocity expressed in units of measure Wind Data wwww selected by customer... -
Page 41: Description Of Status Indicator Codes (Bytes 29-32)
OFS 2000FW User’s Guide Optical Scientific Inc 4.2.2 Description of Status Indicator Codes (Bytes 29-32) Byte Unit of Measure Description Byte Averaging Time Description (sec) Byte Operation Mode Description Byte Full Scale Range Description Normal Operation 0-40 m/s A/B out of range 0-20 m/s Velocity out of the range defined by... -
Page 42: Reading The Output Data
OFS 2000FW User’s Guide Optical Scientific Inc 4.3 Reading The Output Data Results from a “C” poll is used here for illustration It is a simple comma-delimited ASCII text string 59 characters long. Typically it will look something like this: W,+8.27,m/s,A,7.40,B,7.79,S,0200,L,+0.1,H,+0.1,R,263,U,4.46 Figure 4.1 Data Fields and Bytes What this shows:... -
Page 43: Data Collection
Communication Software OSI’s SQC software is recommended, (HyperTerminal, ProComm, etc. may be used.) With OSI’s SQC Software: just connect the cable and follow the screen prompts. Figure 5.1 Connect PC to Controller With HyperTerminal: Click “Start”, point to “All Programs”, point to “Accessories”, point to “Communications”, and then click “HyperTerminal”. -
Page 44: Using "C" Poll
OFS 2000FW User’s Guide Optical Scientific Inc Data Collection (continued) 5.1 Using “C” Poll. Once you are connected, start HyperTerminal and click on the icon you created to open the COM port. Check the Control Panel to see that the output type is set to “Polled Single”. [See Section 8.2.2 “Display and Keypad”]. -
Page 45: Optical Alignment
OFS 2000FW User’s Guide Optical Scientific Inc 6 Optical Alignment Before you begin: The Transmitter and Receiver heads should be installed and powered. The Receiver head should have the detector board oriented in the direction of flow. (See Below.) The Transmitter should be sufficiently aligned so that the Receiver “Signal”... -
Page 46: Transmitter Setup
OFS 2000FW User’s Guide Optical Scientific Inc 6.2 Transmitter Setup The Transmitter uses an eye-safe red LED. The Receiver module is equipped with reflectors to aid in sighting. Note: Under certain operating conditions, it may be difficult to see the reflection from the receiver module. Figure 6.3 OFS 2000FW TX Module Figure 6.4 OFS 2000FW RX Window ! CAUTION ! -
Page 47: Transmitter Aiming Considerations
OFS 2000FW User’s Guide Optical Scientific Inc 6.2.1 Transmitter Aiming Considerations How well the details of the receiver board and detectors can be seen during aiming depends on several factors such as distance, the amount of mist or particulate in the gas stream, the amount of ambient light. These can combine to make it difficult to see where the “spot”... -
Page 48: Figure 6.8 Transmitter Module
OFS 2000FW User’s Guide Optical Scientific Inc 6.2.1 Transmitter Aiming Considerations (Continued) appropriate terminal strip locations (C1, C2 and Ground) on TB J2 on the Receiver board. DO NOT lift the wire that is already in those locations but slip your wire in beside it and tighten the screw back down. The scale will be different than on the controller display and will be approximately 0-2.5 volts. -
Page 49: Avoiding Receiver Saturation
OFS 2000FW User’s Guide Optical Scientific Inc 6.2.1 Transmitter Aiming Considerations (Continued) The A & B voltages do not have to be identical for the OFS to operate correctly. Generally, A & B voltages should be within a maximum of 30% of each other. Velocity measurement is not dependent on the amplitude of the A &... -
Page 50: Correlation
User’s Guide, and other OSI application notes, should result in a non-problematic, well-functioning system. If your correlation number does NOT remain over 100, the condition may be remedied without extreme measures. Discussion of specifics at this point is not within the scope of this manual. Contact OSI for assistance in correcting this condition. -
Page 51: Initial Check And Start-Up
OFS 2000FW User’s Guide Optical Scientific Inc 8 Initial Check and Start-Up 8.1 Initial Check Check visual indicators Perform the OFS power-up initialization Initiate an OFS auto calibration Set-up using keypad & display 8.1.1 Visual Indicators Figure 8.1 Transmitter LEDs Figure 8.2 Receiver LEDs Transmitter Receiver -... -
Page 52: Ofs Start-Up
At this point it may be judged whether or not the OFS is operating properly. If it is found to be working properly the user may proceed with operations. If there are questions regarding the system, contact OSI Technical Support as shown in the last Section of this User’s Guide. -
Page 53: Ofs Initial Display Sequence
OFS 2000FW User’s Guide Optical Scientific Inc 8.2.1 OFS Initial Display Sequence When the OFS is first powered on, the front panel display will show a series of initialization messages. w w w w The following screen is the normal operation data display. The “wwww” characters are the flow velocity in the units of measure shown (m/s in this example). -
Page 54: Display And Keypad
OFS 2000FW User’s Guide Optical Scientific Inc 8.2.2 Display and Keypad The Control Box features a digital display module and 4-position keypad that may be used to enter all user parameters. To access the Menu press and hold the SET key for at least 3 seconds. This will bring up the first Menu item which is “Units of Measure”. - Page 55 OFS 2000FW User’s Guide Optical Scientific Inc Press keys to select an ID code. Press NEXT to select and advance to Unit ID Code the next parameter or SET to select and exit set-up function. RS-485 output only (This function is only used if the RS-485 Interface has been installed) #00 ID Not Enabled Default...
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Page 56: Check Firmware Version Procedure
OFS 2000FW User’s Guide Optical Scientific Inc Calibration Check key pressed, calibration process will begin. If calibration is not desired, press Press to Start NEXT to advance to the next parameter or SET to select and exit set-up function. Requested In Progress Continues for ~2 minutes... -
Page 57: Correction Factor
This function is available but must NOT be undertaken except by trained personnel or with the oversight of OSI Technical Support. For details see Appendix “B” at the end of this manual. P/N 1910-901-1... -
Page 58: Calibration Verification
OFS 2000FW User’s Guide Optical Scientific Inc 8.2.6 Calibration Verification The OFS measurement is essentially drift - free. The system is stable without internal adjustment being required. Nonetheless, periodic calibration checks are recommended (and often mandated) In the interests of compliance and as proof of accuracy, the OFS is equipped with an internal calibration check routine. -
Page 59: External Calibration (Rata)
OFS 2000FW User’s Guide Optical Scientific Inc Calibration Verification (continued) The time since last calibration check and the latest calibration error values may be observed on the OFS Control Box digital display. Press the NEXT ( ) key once to display the time since last calibration check (HH:MM) and twice to display the calibration errors (% error from standard value). -
Page 60: Maintenance
OFS 2000FW User’s Guide Optical Scientific Inc 9 Maintenance 9.1 Safety This equipment does not contain any operator replaceable parts. Only trained personnel are allowed to service this equipment. This equipment contains hazardous voltages. Disconnect AC power before servicing. Read the entire User's Guide before proceeding with installation or maintenance! 9.2 Preventive Maintenance The following preventative maintenance (PM) actions are recommended:... -
Page 61: Window Cleaning Procedure
OFS 2000FW User’s Guide Optical Scientific Inc 9.2.1 Window Cleaning Procedure Loosen the top TX/RX Head mounting flange bolt and take off the remaining three. Carefully rotate the TX/RX Head around the remaining top bolt so that the window is exposed. -
Page 62: Troubleshooting
(elevated correlation). A minimum threshold flow temperature of 100° F (38° C) will be generally sufficient for good correlation. If low correlation is a constant problem, contact OSI Engineering Dept. OFS Calibration Check The OFS is essentially drift-free. -
Page 63: General Troubleshooting Guidelines
If (after consulting with OSI Tech Support) it is determined that there is a problem with a circuit board. You may order a replacement from OSI. Operating firmware or DSP software are not field replaceable or upgradeable unless done by OSI or OSI-approved personnel. -
Page 64: Power And Signal Checks
OFS 2000FW User’s Guide Optical Scientific Inc 10.2 Power and Signal Checks 10.2.1 DSP Power and Signal A quick look at the 5 power level indicating LEDs will show any power problems. If any of the LED's aren't lit, check the power outputs at the system DC power supply. -
Page 65: Signal Voltage Checks - Receiver
OFS 2000FW User’s Guide Optical Scientific Inc 10.2.6 Signal Voltage Checks - Receiver A DMM to measure signal voltages directly from test points on the Receiver Amplifier circuit board. We do NOT recommend this as a standard procedure, but it can be tried if you are having difficulty determining where signal is being lost. -
Page 66: Control Box Troubleshooting
OFS 2000FW User’s Guide Optical Scientific Inc 10.3 Control Box Troubleshooting Digital display not illuminated Using voltmeter, verify AC voltage applied on Surge with expected format Suppressor Module. Verify 5 LEDs are illuminated on DSP PCB. If LEDs not illuminated, replace Control Box Power Supply If LEDs are illuminated, replace Control Module 1910-309 RS-232 not communicating Verify digital display is updating with corrected data... -
Page 67: Spare Parts
OFS 2000FW User’s Guide Optical Scientific Inc 11 Spare Parts 11.1 Recommended Spare Parts For OFS installations where multiple units are installed or where it is “process critical”, We recommend purchase of an entire unit as a spare to keep downtime to a minimum. For installations where a short down- time is acceptable, we recommend these spares, shown below along with the complete table of available spares. -
Page 68: Appendix A Ofs 2000 Thermal Activator
(SNR). In our case, signal is the thermal or density turbulence while noise is vibration and electrical interference.. In these circumstances, applying heat to increase the amount of thermal turbulence present has been found to work very well. To that end, OSI offers the Thermal Activator option. -
Page 69: General Heater Specifications
OFS 2000FW User’s Guide Optical Scientific Inc Appendix A 12.2 General Heater Specifications Figure 12.2 Thermal Activator Dimensions Operational Environment Ambient Temperature -40 to 60 C Power Requirements 120 VAC, 50/60 Hz, 7A -or- 240VAC, 50/60 Hz, 3.5A (depending on user line power) Physical Characteristics Weight 4 lb 12 oz. -
Page 70: Thermal Activator Wiring
The use of the thermocouple (for temperature control purposes and/or monitoring) is at the discretion of the user and outside the scope of this guide. OSI has no recommendations and does not warrant it’s use or warrant the performance or behavior of any temperature controller attached thereto. -
Page 71: Description Of Units
The major components of the OFS 2000FW with Thermal Activator System are shown in the figure above. The OFS Thermal Activator is intended for “low temperature” airflow applications. See Figure 12.1 for an illustration of the application. Heaters can be specified to suit your application. Consult OSI Engineering Department before ordering. P/N 1910-901-1 Rev. 03/28/13... -
Page 72: Thermal Activator
OFS 2000FW User’s Guide Optical Scientific Inc Appendix A 12.5 Thermal Activator 12.1 Figure 12.6 Thermal Activator The Standard Thermal Activator is rated at 800W @ 120V or 240V 50/60Hz [P/N 1910-850 = 120V; 1910-850-1 = 240VAC ] Other wattages are available by special order for special applications. -
Page 73: Pre - Installation
OFS 2000FW User’s Guide Optical Scientific Inc Appendix A 13 Pre – Installation 13.1 Thermal Activator Placement In addition to the general placement considerations described in the Section 2 of this guide, proper allowance must be made for the location of the Thermal Activator [1910-850/850-1]. These are placed upstream of the light beam axis as shown in the figure below. -
Page 74: Installation
OFS 2000FW User’s Guide Optical Scientific Inc Appendix A 14 Installation Thermal Activators require a 3/4” NPT port installed on centerline with the OFS Receiver and 8 inches upstream of the light path. The heater should have a dedicated AC line of suitable gauge (based on wattage and distance), controlled by a circuit breaker. -
Page 75: Appendix B Ofs Curve Fitting Procedure
Optical Scientific, Inc. will not be held liable for any accident, injury to personnel, or damage to property incurred while operating or servicing OSI equipment. Implementation and enforcement of proper work safety procedures is solely the responsibility of the user, user employees or contracted personnel. -
Page 76: Equipment Setup
OFS 2000F/-FW User’s Guide Optical Scientific Inc Appendix B 15.2 Equipment Setup To perform multipoint offset to adjust the OFS measurement to the reference, one has to use computer to input the data to OFS. The front panel on OFS can only show inputted multipoint offset data but can’t perform any system flow measurement change. -
Page 77: Curve Fitting Data Entry
OFS 2000F/-FW User’s Guide Optical Scientific Inc Appendix B 15.3 Curve Fitting Data Entry With the OFS operating properly and PC communication established (see previous sections) you can begin: Send “X” (upper case) to OFS. The following message will display: Up to six curve fitting points are available. -
Page 78: Curve Fitting Verification
OFS 2000F/-FW User’s Guide Optical Scientific Inc Appendix B 15.4 Curve Fitting Verification Once the curve fitting information has been entered into the firmware, it should be checked to make sure it is properly installed. This can be checked by using the controller keypad. Press and hold “Set”... -
Page 79: Technical Support
OFS 2000F/-FW User’s Guide Optical Scientific Inc Appendix B 16 Technical Support OSI Technical Support techsupport@opticalscientific.com Tel: +1 301 963 3630 xt 216 Fax: +1 301 948 4670 9AM – 5PM Eastern Time Monday – Friday (except national holidays) Telephone assistance for overseas customers is available by appointment. - Page 80 OFS 2000F/-FW User’s Guide Optical Scientific Inc Appendix B This page intentionally left blank P/N 1910-901-1 Rev. 03/28/13...
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