Teledyne ADFM Pro20 Technical Manual

Teledyne ADFM Pro20 Technical Manual

Acoustic doppler flow meter
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ADFM
Acoustic Doppler Flow Meter
T E C H N I C A L
M A N U A L
This manual includes information for the following products:
ADFM Pro20
ADFM Analog Output Module
ADFM Hot Tap
Teledyne Isco P/N 69-7103-001
January 2000

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  • Page 1 Acoustic Doppler Flow Meter T E C H N I C A L M A N U A L This manual includes information for the following products: ADFM Pro20 ADFM Analog Output Module ADFM Hot Tap Teledyne Isco P/N 69-7103-001 January 2000...
  • Page 3 (402) 464-0231 FAX (402) 465-3022 E-mail (Customer Service): IscoCSR@teledyne.com E-mail (Technical Service): IscoService@teledyne.com Web site: www.isco.com Copyright © 2000 by MGD Technologies Inc., Copyright © 2006 by Teledyne Isco Inc. - All rights reserved. Teledyne Isco P/N 69-7103-001 (January 2000)
  • Page 4 Table of Contents LIST OF EFFECTIVE PAGES Edition 4 – January 14, 2000 – Firmware version 6.37 New editions are complete revisions of the manual. Update packages, which are issued between editions, contain additional and replacement pages to be merged into the manual by the customer.
  • Page 5 Table of Contents RECORD OF CHANGES Edition Effective Description February 96 Firmware version 6.17 through 6.30 January 00 Firmware version 6.37 ADFM Technical Manual (January 2000)
  • Page 6 Table of Contents NOTES MGD Technologies Inc.
  • Page 7: Table Of Contents

    Table of Contents Table of Contents Introduction to the ADFM Velocity Profiler™ ........1-1 Overview ........................1-1 Getting Started ......................1-1 General Operation....................1-2 1-3.1 General Warnings and Cautions .................1-2 ADFM Components Overview..................1-3 1-4.1 What is an ADFM? ....................1-4 1-4.2 Principles of Operation ..................1-4 1-4.3 User Data Interfaces....................1-6 Equipment Setup and Installation ............2-1 Introduction.......................2-1...
  • Page 8 Table of Contents Maintenance ....................4-1 Introduction.......................4-1 Desiccant........................4-1 Battery Replacement....................4-2 4-3.1 Replacing the Alkaline Lantern System Batteries..........4-2 4-3.2 Replacing the Lead-Acid System Batteries ............4-3 4-3.3 Recharging The Lead-Acid System Batteries............4-3 4-3.4 Replacing The Real Time Clock Backup Battery..........4-4 Fuse Replacement ....................4-4 Changing Mains Supply Voltage ................4-5 Replacement Parts....................4-6 ADFM Test Procedures................5-1...
  • Page 9 Table of Contents A-3.2 Transmit Path ..................... A-5 A-3.3 Receive Path ...................... A-5 A-3.4 Temperature Interface ..................A-6 A-3.5 Transducer Power Supply .................. A-6 Specifications..................B-1 Physical Specifications.................... B-1 Performance Specifications..................B-3 B-2.1 Measurement Precision..................B-3 Flow Accuracy ....................B-3 Velocity .......................
  • Page 10 Table of Contents EE - Secondary Depth Max. Probable Error............. C-14 EO - Secondary Depth Zero Offset..............C-14 ER - Secondary Depth Span ................C-14 ES - Salinity ...................... C-15 ET - Temperature ..................... C-15 EX - Coord Transform..................C-15 EZ - Sensor Source: ..................
  • Page 11 Table of Contents RS - Recorder Space Used/Free..............C-40 RT - Recorder Bit....................C-41 RY - Start YModem................... C-42 C-2.7 Timing Commands ................... C-43 TE - Time Per Ensemble .................. C-43 TF - Time Of First Ping ..................C-43 TP - Time per Ping ................... C-44 TS - Set Real-Time Clock .................
  • Page 12 Table of Contents List of Figures Figure 1-1. ADFM Components...................... 1-3 Figure 1-2. Typical ADFM installation ..................... 1-4 Figure 1-3. ADFM Beam Geometry ....................1-5 Figure 2-1. ADFM System Interconnection ..................2-2 Figure 2-2. Pipe Geometry and Parameters...................2-7 Figure 2-3. Transducer Orientation ....................
  • Page 13 Table of Contents NOTES ADFM Technical Manual (January 2000)
  • Page 14 Table of Contents MGD Technologies Inc.
  • Page 15: Introduction To The Adfm Velocity Profiler

    Introduction to the ADFM Velocity Profiler™ Chapter Introduction to the ADFM Velocity Profiler™ Overview This technical manual is intended to be the detailed reference for the ADFM Velocity Profiler™ (ADFM), using the firmware version listed on the title page. This manual contains information on ADFM setup, operation, data retrieval, maintenance, testing, and troubleshooting.
  • Page 16: General Operation

    Chapter 1 If you have questions pertaining to a specific ADFM system installed, please have the following information on hand before contacting us: Serial # of Electronics Unit and Technical Support will need to know Transducer: the serial number to obtain the sys- tem’s configuration before they can help you.
  • Page 17: Adfm Components Overview

    Introduction to the ADFM Velocity Profiler™ • Only fuses with the required rated current, voltage, and specified type should be used. Do not repair fuses or short circuit fuse- holders. To do so could cause a shock or fire hazard. •...
  • Page 18: 1-4.1 What Is An Adfm

    Chapter 1 To allow measurements close to the bottom of the pipe or channel and to minimize debris collection on the transducer, the ADFM transducer is de- signed to have a low profile. It therefore contains a minimum of required electronics.
  • Page 19: Adfm Beam Geometry

    Introduction to the ADFM Velocity Profiler™ The ADFM divides the return signal into discrete regular intervals that cor- respond to different depths in the flow. Velocity is calculated from the fre- quency shift measured in each interval. The result is a profile, or linear dis- tribution of velocities, along the direction of the beam.
  • Page 20: 1-4.3 User Data Interfaces

    Chapter 1 entire cross-section of the flow. The algorithm fits the basis functions of a parametric model to the actual data. The result predicts flow velocities at all points throughout the flow. These results are integrated over the cross- sectional area to determine the discharge. The key benefit to this approach is that the system will operate accurately under different hydraulic conditions.
  • Page 21: Equipment Setup And Installation

    Equipment Setup and Installation Chapter Equipment Setup and Installation Introduction This section of the manual contains information and instructions for inspec- tion, configuration, testing, installation, and deployment of the ADFM Ve- locity Profiler™. Included in this section are: • Initial inspection procedures •...
  • Page 22: Initial Inspection

    Chapter 2 Initial Inspection On receipt, inspect the shipping container for damage. If shipping container or cushioning material is damaged, it should be kept until the contents of the shipment have been checked for completeness and the system has been checked both mechanically and electrically.
  • Page 23: 2-3.1 Connecting The Transducer Cable To The Electronics Unit

    Equipment Setup and Installation 2-3.1 Connecting the Transducer Cable to the Electronics Unit The transducer cable is a multi-pair, multi-shielded cable designed specifi- cally for use with the ADFM. The standard cable length is 15 meters (49 feet), but other cable lengths are available. Contact MGD Technologies Inc. for details.
  • Page 24: Line Voltage Selection

    Chapter 2 power/life of the lead-acid type. An optional conversion kit for using two (2) 12-volt, 7-amp hour sealed lead-acid gel cell batteries is also available. The ADFM will operate from an external DC power supply of 12 to 35 volts, with a power consumption of 3 watts maximum.
  • Page 25: 2-3.3 Applying Power

    Equipment Setup and Installation The power supply cable mates with the smallest connector on the ADFM. Wiring assignments for the power cable are as follows: Color Function + DC Black - DC 2-3.3 Applying Power Two key switches on the inner front panel control power to the ADFM. A third momentary key switch provides a reset function.
  • Page 26: 2-4.3 Power-Up Bit Procedure/Sequence

    Chapter 2 2-4.3 Power-UP BIT Procedure/Sequence a. Switch power to the ADFM off. b. Switch power on again; however, make sure at least ten minutes have passed since all power was switched off. The ADFM’s LCD display should show firmware version and error code map followed by the “wake up message”: RD Instruments: -------------------...
  • Page 27: 2-5.2 Prepare Installation Hardware

    Equipment Setup and Installation Rectangular and Trapezoidal shaped: Circular or Egged-shaped: H = Heights in meters R = Radii in meters W = Widths in meters a = Angles in degrees Figure 2-2. Pipe Geometry and Parameters During installation, the following parameters need to be recorded, as they are needed by the software to estimate discharge: •...
  • Page 28: 2-5.3 Install Software And Configure Station File

    Chapter 2 Installation of the ADFM transducer assembly must also comply with the following parameters to maintain the accuracy of the final installation: • Transducer must be installed in such a way that the vertical beam (beam 5) is oriented normal with respect to the pipe’s or chan- nel’s invert.
  • Page 29: 2-5.4 Installing And Deploying The Adfm

    Equipment Setup and Installation 2-5.4 Installing and Deploying the ADFM Detailed procedures for installing the ADFM in a specific application can- not be provided without detailed knowledge of the application. Please con- tact MGD Technologies Inc. if you desire information or assistance in your application.
  • Page 30 Chapter 2 able, but corrugated shipping boxes of at least 200-lb. test may be used. • Use a layer of shock-absorbing materiel, at least 25 mm (1 in) thick around all sides of the Electronics Unit and transducer as- sembly to firmly cushion and prevent movement inside the con- tainer.
  • Page 31: Software Operation

    Software Operation Chapter Software Operation Introduction The primary tool used to program, deploy, and operate the ADFM is the software program WinADFM. Additional utility programs are available if required for specific functions, however, their use is not required in normal operation.
  • Page 32: Winadfm

    Chapter 3 Suggestions: • IBM Compatible Pentium processor • Hard Drive (500 megabytes or larger capacity with fast access) • Zip Drive (or other hard drive data backup system) • Mouse WinADFM WinADFM is the recommended program for operating the ADFM. Please refer to the separate software manual for further information.
  • Page 33 Software Operation Example: 102A1214.001 ADFM serial number 102 Downloaded from recorder on October Downloaded from recorder on October 12 Downloaded from recorder on October 12 at 2 PM Deployment number 001 on ADFM recorder ADFM Data Files ("rtYYMMDD.xxx”) (data collected in real time): Binary data files containing data measured by the ADFM and collected by software on a computer as the measurement occured.
  • Page 34: Using Bbtalk

    Chapter 3 Using BBTALK BBTALK is a dumb terminal emulator program. This IBM-compatible pro- gram can capture raw data files and help troubleshoot configuration prob- lems. You can use BBTALK for serial or parallel communications in either an ASCII or BINARY mode. A binary-to-hexadecimal conversion feature lets you view and record the binary output data in a hexadecimal format.
  • Page 35: 3-4.3 Wakeup The Adfm

    Software Operation 3-4.3 Wakeup the ADFM Wakeup is the process of establishing communication with the ADFM. Immediately after you apply power to the ADFM, it enters the STANDBY mode. Sending a BREAK signal from a terminal/program awakens the ADFM. When the ADFM receives a BREAK signal, it responds with the wake-up message.
  • Page 36: 3-4.5 Bbtalk Log Files

    Chapter 3 3-4.5 BBTALK LOG Files The LOG feature lets you record data to a disk file. You name the file (DOS convention) by pressing the key. You can enable logging at any time. The help line shows the CAPTURE status. To use LOG, do the fol- lowing steps.
  • Page 37: Maintenance

    Maintenance Chapter Maintenance Introduction This chapter describes basic maintenance requirements for the ADFM. • How to replace or recharge the desiccant • How to replace and recharge the system batteries • How to change fuses • How to change the mains supply voltage selection CAUTION.
  • Page 38: Battery Replacement

    Chapter 4 a. In a non-corrosive atmosphere, remove the top of the unit. b. Unscrew the two screws securing the housing cover and open the cover. c. The desiccant bag holder is attached to the front panel with cable ties. Remove the ties and replace the desiccant. d.
  • Page 39: 4-3.2 Replacing The Lead-Acid System Batteries

    Maintenance 4-3.2 Replacing the Lead-Acid System Batteries The ADFM’s internal batteries are two sealed lead-acid type batteries, with a nominal capacity of 7 Ah each (see Table 4-16, item 04). The nominal voltage is 24V for both batteries connected in series, while the low voltage is 20V.
  • Page 40: 4-3.4 Replacing The Real Time Clock Backup Battery

    Chapter 4 4-3.4 Replacing The Real Time Clock Backup Battery The real-time clock (RTC) is designed to keep time when the power source is turned off. The backup battery is a single 3 volt, 250 mAh Lithium coin cell, and is located near the bottom left corner of the ADFM motherboard in the electronics housing (see Table 4-16, item 05).
  • Page 41: Changing Mains Supply Voltage

    Maintenance Changing Mains Supply Voltage If you need to change the mains supply voltage selection from 230V to 115V or vice-versa, follow the procedure below. CAUTION. Disconnect the mains power cord before attempting to change the voltage selection. Make sure you install a fuse appropriate for the selected mains supply.
  • Page 42: Replacement Parts

    Chapter 4 Replacement Parts Table 4-16 is a listing of ADFM replacement parts, which include the Least Replaceable Assemblies (LRA), along with other parts such as fuses etc. When practical, you may use parts procured other than through MGD, if MGD is not listed as the manufacturer of these parts, and are considered by MGD to be generic.
  • Page 43: Figure 4-1. Adfm Electronic Housing (Exterior View) - Replaceable Parts Identification

    Maintenance 10 or 11 Figure 4-1. ADFM Electronic Housing (Exterior View) – Replaceable Parts Identification ADFM Technical Manual (January 2000) page 4-7...
  • Page 44: Figure 4-2. Adfm Electronic Housing (Interior View) - Replaceable Parts Identification

    Chapter 4 Figure 4-2. ADFM Electronic Housing (Interior View) – Replaceable Parts Identification page 4-8 MGD Technologies, Inc.
  • Page 45: Adfm Test Procedures

    ADFM Test Procedures Chapter ADFM Test Procedures Introduction This chapter explains how to test the ADFM using BBTALK and the WinADFM program. These tests thoroughly check the ADFM in a laboratory environment, but are no substitute for a practice deployment. You should test the ADFM: •...
  • Page 46: Built-In Diagnostic Tests

    Chapter 5 Built-In Diagnostic Tests The following describes how to execute an automatic self-test. In general, if the automatic self-test is successful, no further testing is required. How- ever, if the automatic self-test is not successful, further fault isolation, util- izing individual Built-In Tests is necessary.
  • Page 47: Using Bbtalk To Test The Adfm

    ADFM Test Procedures Using BBTALK to Test the ADFM BBTALK allows you to send direct commands to the ADFM. You may use the following commands to further test the system. 5-4.1 Diagnostic Tests The diagnostic test checks the major ADFM modules and signal paths. We recommend you run this test before a deployment.
  • Page 48: 5-4.2 Receive Path Test

    Chapter 5 d. If the transducer is immersed in a bucket of water that is resting on the floor, noise can be coupled into the ADFM. As such, you should shield the bucket from the floor by inserting a piece of hard foam be- tween the bucket and the floor.
  • Page 49: 5-4.3 Transmit Test

    ADFM Test Procedures >pt3 Correlation Magnitude: High Gain RSSI: DAC Sin: DAC Cos: Duty: LPF: Receive Test Results = $00000000 ... PASS g. Observe the High Gain RSSI values. They should be between 20 to 25 counts with the transducer disconnected. h.
  • Page 50: 5-4.4 Sensor Test

    Chapter 5 RXMT 1335.6 Ohms Transmit Test Results = $40 ... PASS d. Observe the RXMT values. They should be above 1300 ohms with the transducer disconnected. e. Re-connect the transducer to the electronic housing by connecting the transducer cable. f.
  • Page 51: 5-4.5 Modem Test

    ADFM Test Procedures 5-4.5 Modem Test This test checks the modem operation. a. Start BBTALK. Press the key to wake the ADFM. b. Type to clear the fault log. c. Type to turn the modem power on. d. Type e. Verify these readings are present and correct. >mp1 >mo Modem is OK...
  • Page 52: Using Winadfm To Test The Adfm

    Chapter 5 Using WinADFM to Test the ADFM WinADFM can be used to test the ADFM. Figure 5-18 shows the Operate dialog window. The ADFM can be tested for proper communication, bench test the system to ensure the system electronics are operating properly, and field-test the system after it has been installed.
  • Page 53: 5-5.3 Field Test

    ADFM Test Procedures • Lists the ADFM’s serial number and the transducer and electron- ics firmware versions. • Determines if an internal recorder is present. Performs a “Re- corder Test” and returns an “OK” or an error declaration. • Determines if a modem is present. Performs a “Modem Test” and returns an “OK”...
  • Page 54 Chapter 5 NOTES page 5-10 MGD Technologies, Inc.
  • Page 55: Adfm Troubleshooting

    ADFM Troubleshooting Chapter ADFM Troubleshooting Introduction This chapter describes how to isolate faults. The provided information be- low assumes that faults are isolated with a large degree of certainty to a least replaceable assembly (LRA) level only. Considering the complexity of the ADFM it is MGD Technologies Inc.’s intention to provide as much information as it seems practical for field repair.
  • Page 56: Equipment Required

    Chapter 6 Equipment Required Special test equipment is not needed for troubleshooting (fault isolation). A list of equipment required for the performance tests is listed below. Any equipment satisfying the critical specification listed may be used. Table 6-2: Required Test Equipment Required Test Critical Specification Equipment...
  • Page 57: Power On Fault Isolation

    ADFM Troubleshooting Power On Fault Isolation Symptom: No wake up message at LCD display or computer screen. Possible Cause: Power What to Do: Refer to “Built-in Test is Not Executing,” page 6-6. Symptom: No wake up message at LCD, but computer screen displays wake up message when a BREAK is sent, or when a manual Reset is applied (Reset Switch).
  • Page 58 Chapter 6 Symptom: Recorder found but not recording data correctly. Possible Cause: Recorder Assembly. What to Do: In BBTALK type “R?” for the recorder menu. Next type “RT” followed by a CR to perform a non-destructive recorder diagnostics test. The results should look like “0 1 14 0 0 “.
  • Page 59 ADFM Troubleshooting Symptom: Ancillary Data VXDR, VDD1, and VDC are outside the range listed in section “Maintenance and Troubleshooting”. Possible Cause: Batteries or Power Supply. ADFM Motherboard. What to Do: Replace batteries. Check power supply. Replace Motherboard. Refer to section “Least Replaceable Assembly Fault Isolation,”...
  • Page 60: Least Replaceable Assembly Fault Isolation

    Chapter 6 Least Replaceable Assembly Fault Isolation The following procedure is intended to assist fault isolation in cases where: • The Built-in-Test (BIT) can not be executed (no ADFM Wake-Up for example) or • The BIT determines an ADFM Transducer problem It is not necessary to follow this procedure for routine maintenance.
  • Page 61 ADFM Troubleshooting a. Verify that the internal or external power sources are properly con- nected to the ADFM, and sufficient to supply it. b. Verify that the computer’s serial port is functioning normally. With Windows 95, go to Start, Settings, Control Panel. Double click System, go to the Device Manager tab and select Ports to deter- mine if the computer’s serial port is properly operating.
  • Page 62 Chapter 6 NOTE. MGD Technologies Inc. recommends replacing the ADFM Electronics Unit unless the problem is obvious and can be safely repaired in the field. b. If mains power is used for supplying the ADFM with power, check if your mains outlet has the proper voltage. 1.
  • Page 63: Table 6-3: List Of Test Points

    ADFM Troubleshooting e. You also should be able to measure VDD2 and VDD3 at test point TP2 and TP3 respective. f. Depress, and release switch S1, and measure the remaining listed voltages. Table 6-3: List of Test Points Test Point: Label: Description: Voltage:...
  • Page 64: 6-5.3 Bit Determines A Problem Associated With The Transducer

    Chapter 6 6-5.3 BIT Determines a Problem Associated with the Transducer The built-in test (BIT) is not able to isolate in all instances the problem ex- actly. If, with help of BIT you isolated the fault to be within the transducer or the Transmit Test failed, the problem may be associated with the follow- ing items.
  • Page 65: Adfm System Overview

    ADFM System Overview Appendix ADFM System Overview Introduction The ADFM consists of two units: the Electronics Unit and the transducer. Both Units are described below to a detail necessary for an understanding of their function, and as an aid for troubleshooting. Electronics Unit Circuit Description The following description refers to Figure A-17.
  • Page 66: A-2.2 Receiver

    Appendix A the secondary winding. The voltage is rectified, and filtered at the power filter (PWR FILTER). External DC-supply voltage and internal batteries are connected through diodes. A battery power switch located at the front panel is common to both DC supplies. The DC supplies and the rectified mains supply are connected together at the power filter.
  • Page 67: A-2.3 Timing Generator

    ADFM System Overview The mixer is a quatrature mixer, where an in-phase (I), and a quatrature signal (Q) is obtained. Both signals are needed for the correlator, which performs the basic digital signal processing. The I and Q-signals are buff- ered with a first-in/first-out buffer (FIFO).
  • Page 68: A-2.5 User Interface

    Appendix A The ROM is configurable in size (128 to 512 k-words), uses Flash or EPROM, and is typically factory set to 512 k-words Flash. The RAM is supplied by VDD2, which provides non-volatility, as long as either a DC power, or mains is supplying the ADFM, that is the RAM contents is main- tained during the sleep mode (power down mode).
  • Page 69: Transducer Electronics Circuit Description

    ADFM System Overview signal width a minimum duration of 400 ms. The Modem must be able to send a Break signal with a minimum duration of 300 ms. The RS-232 serial data interface is located at the front panel of the ADFM. It is intended for local operation of the ADFM.
  • Page 70: A-3.4 Temperature Interface

    Appendix A A-3.4 Temperature Interface The transducer’s ambient temperature is sensed by an accurately linearized termistor (T_SENSE). The termistor’s temperature dependent output volt- age is connected to an amplifier (S_AMP), where it is scaled, and buffered. The transducer then digitizes the scaled buffered output voltage. The result is available for the ADFM’s Electronics Unit via the serial interface port.
  • Page 71: Figure A-1. Electronics Unit Block Diagram

    ADFM System Overview CPU-BUS SYSTEM-BUS RCVR-BUS TIMING GEN.-BUS Figure A-1. Electronics Unit Block Diagram ADFM Technical Manual (January 2000) page A-7...
  • Page 72 Appendix A Table A-1: Electronics Unit Block Diagram Legend Block Diagram Legend Description Analog to Digital converter AUX. REG. Auxiliary regulator BUS-INTFC Bus interface circuit CORRELATOR Correlator, digital signal processor Central processing unit CURR-XFMR Current sense transformer DC PWR ENTRY DC power entry circuit DC/DC-CONV.
  • Page 73: Figure A-2. Transducer Block Diagram

    ADFM System Overview Figure A-2. Transducer Block Diagram ADFM Technical Manual (January 2000) page A-9...
  • Page 74 Appendix A Table A-2: Transducer Block Diagram Legend Block Diagram Legend Description: XDCR Transducer element, or beam T/R-SWITCH Transmit/Receive Switch Bandpass filter Pre-Amplifier BUFF Buffer amplifier XFMR Transformer XDCR-CTL Transducer controller PWR-FLT Transducer power supply input filter PWR-REG Transducer power supply regulator REFERENCE Reference T-EN...
  • Page 75: Specifications

    Specifications Appendix Specifications Physical Specifications The ADFM consists of a transducer assembly placed in the flow connected to a controlling set of electronics by a waterproof cable. The transducer assembly is designed to be intrinsically safe (IS) compliant. An optional IS zener diode barrier may be mounted in an electronics assembly for interface to the transducer.
  • Page 76: Figure B-1. Adfm Transducer Dimensions

    Appendix B 204.00 (8.03) 83.00 38.10 (3.27) (1.50) Figure B-1. ADFM Transducer Dimensions page B-2 MGD Technologies, Inc.
  • Page 77: Figure B-2. Adfm Field Housing Dimensions

    Specifications The field housing contains the signal processing system (Figure B-23). The housing contains all signal processing boards, the battery supply, and avail- able options – a modem for telemetry, solid state memory for stand alone operation, and IS zener diode barriers. An RS-422 and 232 serial interface is standard, as is a 4 line by 16 character LCD for quick determination of the system’s status.
  • Page 78: Performance Specifications

    Appendix B Performance Specifications NOTE. All specifications shown are in Imperial units. B-2.1 Measurement Precision Flow Accuracy 2% of reading Velocity ± 30.0 ft/s Horizontal Velocity Range Depth Cell Size 2 to 12 in. – user selectable Vertical Profiling Range Up to 20 ft., for particle concentrations of 50 to 1000 ppm 1.0% ±...
  • Page 79: Transducer Signal Cable

    Specifications Transducer Signal Cable Operating Temperature -40 to 125° F Physical Polyethylene jacket. Static Pressure 45 psi Length 50 ft std. (up to 150 ft optional) Minimum Bend Radius 0.5 ft. Weight 0.08 lb/ft nominal Outer Diameter 0.5 in. nominal Acoustic Frequency Frequency 1.23 MHz...
  • Page 80: Data Storage (Optional

    Appendix B Data Storage (optional) Storage Capacity 20 Mbytes Data Interfaces Data I/O - RS-232; - RS-422; - Modem port (optional) - 4-20 mA (optional) B-2.4 Power and Frequency Power 230 ± 10% VAC External AC 115 ± 10% VAC 50/60 Hz External DC 24 VDC - 12 VDC absolute minimum;...
  • Page 81: Adfm Commands

    ADFM Commands Appendix ADFM Commands Introduction This Appendix defines the commands used by the ADFM. These com- mands let you set up and control the ADFM without using an external soft- ware program such as our WinADFM program. However, we recommend you use WinADFM to control the ADFM because entering commands di- rectly from a terminal can be difficult.
  • Page 82: C-1.1 Adfm Data Communication And Command Format

    Appendix C C-1.1 ADFM Data Communication and Command Format You can enter commands with either a dumb terminal or an IBM- compatible computer running a terminal emulator program such as RDI’s BBTALK.EXE. The ADFM communicates with the terminal/computer through an RS-232 (or RS-422) serial interface. We initially set the ADFM at the factory to communicate at 9600 baud, no parity, and 1 stop bit.
  • Page 83: C-1.3 Data Output Processing

    ADFM Commands C-1.3 Data Output Processing After the ADFM completes a data collection cycle, it sends a block of data called a data ensemble. A data ensemble consists of the data collected and averaged during the ensemble interval (see TE-command). A data ensemble can contain header, leader, velocity, correlation magnitude, echo intensity, and vertical-beam data (selected by the WD-command).
  • Page 84: Pipe Heights/Epsilons

    Appendix C Command Default Description Go (Start Pinging) Turnkey (0 = OFF, 1 = ON) Shut Off Voltage (volts) Power Down BBADCP +00000 Heading Alignment (1/100 deg) 1500 Speed Of Sound (m/s) 0000 Transducer Depth (0 - 9999 dm) 0020 Secondary Depth Max.
  • Page 85 ADFM Commands Command Default Description 0500,0250 Disc Params*10000 (Delta,N :0=Calculate,not0=Fixed) QVD Structure Only Rate (1=Both Always:1-256) Channel Geometry Units (0 = cm, 1 = mm) 0100,0100,0100 Pipe Widths/Radii (cm) Zero Discharge Accumulation Number of Deployments Recorded RB ### Blank Check 1 MB of Recorder Memory (0 = ALL) Current Deployment Selected (0 = NONE) RE ErAsE Erase Recorder...
  • Page 86: Command Descriptions

    Appendix C Command Default Description Mode 5 Depth (cm radial) Mode 5 Correlation Threshold (0..255)) Mode 5 Ambiguity Velocity (cm/s radial) Command Descriptions This section lists all ADFM commands. Each listing includes the com- mand’s purpose, format, range, and description. When appropriate, we in- clude amplifying notes and examples.
  • Page 87: Help Menus

    ADFM Commands ? - Help Menus: Purpose: Lists the major help groups. Format: x? (see description) Description: Entering ? by itself displays all command groups. To display help for one command group, enter x?, where x is the com- mand group you wish to view. When the ADFM displays the help for a command group, it also shows the format and cur- rent setting of those commands.
  • Page 88: C-2.1 Control System Commands

    Appendix C C-2.1 Control System Commands The ADFM uses the following commands to control certain system parame- ters: CA - Communication Timeout Purpose: Sets the length of the communication timeout wait. Format: CAnnnnn Range: nnnnn = 10 to 65536 sec (0 = Off,) Default: CA00300 Description:...
  • Page 89: Cf - Flow Control

    ADFM Commands CF - Flow Control: Purpose: Selects when/how/where/what water-current data to collect. Format: CFnnnnn Range: Firmware switches (see description) Description: CF defines whether the ADFM: generates data ensembles automatically or manually; generates pings immediately or manually; sends output data in binary or HexAscii format; sends or does not send output data out the serial interface;...
  • Page 90: Ck - Keep Parameters

    Appendix C CK - Keep Parameters Purpose: Stores current parameters to EEPROM. Format: Description: CK saves the current user command parameters to an EEPROM on the CPU board. The ADFM maintains data stored in the EEPROM (user settings) even if power is lost. It does not need a battery.
  • Page 91: Cs - Start Pinging (Go

    ADFM Commands configured from battery-backed RAM unless it receives a CR- command or until the RAM loses its backup power. Example: CR0 = loads into non-volatile RAM the command set last stored in EEPROM (semi-permanent or user settings) using the CK-command. CR1 = loads into non-volatile RAM the factory default com- mand set stored in ROM (permanent or factory settings).
  • Page 92: Cv - Shut Off Voltage

    Appendix C CV - Shut Off Voltage Purpose: Sets the shutoff voltage level. Format: CVnnn Range: nnn = 0 to 999 volts. Default: CV012 Description: The shutoff voltage determines at what voltage the ADFM will stop pinging during the deployment cycle. If the system detects a low voltage condition for five consecutive ensem- bles, the ADFM will shutdown.
  • Page 93: C-2.2 Environmental Sensor Commands

    ADFM Commands C-2.2 Environmental Sensor Commands The ADFM uses the following commands to control the environmental and positional information that affects internal data processing. EA Heading Alignment Purpose: Corrects for physical misalignment between the long axis of the ADFM transducer and the channel it is deployed in. Format: EA+nnnnn Range:...
  • Page 94: Ee - Secondary Depth Max. Probable Error

    Appendix C EE - Secondary Depth Max. Probable Error Purpose: Sets the maximum probable error of the secondary depth sen- sor. Format: EEnnnn Range: nnnn = 0 to 1000 (o to 100%) Default: EE0020 (2%) Description: The EE command allows the user to set the maximum prob- able error (MPE) of the secondary depth sensor.
  • Page 95: Es - Salinity

    ADFM Commands ES - Salinity Purpose: Sets the water’s salinity value. Format: ESnn Range: nn = 0 to 40 parts per thousand Default: ES00 Description: ES sets the water’s salinity value. The ADFM uses ES in its speed of sound calculations. The ADFM assumes the speed of sound reading is taken at the transducer head.
  • Page 96: Table C-4: Coordinate Transformation Processing Flags

    Appendix C Table C-4: Coordinate Transformation Processing Flags Setting Description EX00xxx No transformation. Radial beam coordinates, I.E., 1, 2, 3, 4. Heading/Pitch/Roll not applied. EX01xxx Instrument coordinates. X, Y, Z vectors relative to the ADFM. Heading/Pitch/Roll not applied. EX10xxx Ship coordinates (Note 1) X, Y, Z vectors relative to the ship. Heading not applied.
  • Page 97: Ez - Sensor Source

    ADFM Commands EZ - Sensor Source: Purpose: The EZ-command selects the source of environmental sensor data. Format: EZcdhprst Default EZ1011111 Range: Firmware switches (see description) Description Setting the EZ-command firmware switches tells the ADFM to use data from a manual setting or from an associated sen- sor.
  • Page 98: C-2.3 Modem Commands

    Appendix C C-2.3 Modem Commands This section describes the menu commands that are available for controlling Modem operation in the ADFM. MC - Modem Command Purpose: Sends a command string to the remote modem. Format: Range: s = command string Description: The MC command is used by the host to send a command string to the remote Modem (i.e.
  • Page 99: Mm - Modem Monitor

    ADFM Commands Displays the current dial-out interval setting. MI 3600 Sets the dial-out interval to 3600 seconds ( 1 hour ). Example: For example, if you want to set the ADFM to call the host once per day, send the following: MI 86400 The dial-out interval takes effect only when the ADFM unit is actively pinging.
  • Page 100: Mn - Dial Out Phone Number

    Appendix C MN - Dial out Phone Number Purpose: Displays the currently programmed phone number. Format: MNnnnnnnn Range: The phone number can be up to 15 digits in length. Default: MN0000000 Description: Hyphens and spaces can be used if desired, but are not neces- sary and should be eliminated if the number has many digits.
  • Page 101: Mt - Modem Terminal

    ADFM Commands given remotely over the Modem interface since turning off the Modem would cause communications with the ADFM to be lost. MT - Modem Terminal Purpose: Allows for a direct connection to the modem. Format: Description: Entering ‘MT’ at the ADFM command prompt will cause the ADFM to go into a mode where it passes all input via the RS- 232 to the Modem, and passes all input from the Modem to the RS-232.
  • Page 102: C-2.4 Performance And Test Commands

    Appendix C C-2.4 Performance and Test Commands The ADFM uses the following commands for testing. PA - User Interactive Tests Purpose: Displays results of the ADFM sensor data diagnostic tests. Format: Range: n = 0 (help), 1 = Sensor Data Default: Description: This diagnostic test verifies the sensor operation.
  • Page 103: Pd - Data Stream Select

    ADFM Commands Timing Card RAM (PI ): PASS Demodulator RAM (PI ): PASS Checksum Code/Tables (PT8): PASS Receive Test (PT3): PASS Transmit Test (PT4): PASS Electronics Wrap Test (PT5): PASS LPF Bandwidth Test (PT6): PASS Clock Interrupt (PI ): PASS Error Log: Power Loss Auto Restart Occurred...
  • Page 104: Pi Run Individual Built-In Tests

    Appendix C PI Run Individual Built-In Tests Purpose: The PI BIT selects the individual built-in tests to run. Format: PInnnnn Range: Firmware switches (see description). Description: PI sets firmware switches that select the individual tests of the Built-In Test function. When a bit is not set (0), the corre- sponding test is not run;...
  • Page 105: Pt - Built-In Tests

    ADFM Commands >ps0 ----------- ADFM SERIAL #: 65535 ----------- TRANSDUCER Xducer Ser #: Frequency: 1228800 Hz Configuration: 5 Beam Beam Angles: 30/20, 20/10 Degrees Beam Pattern: Convex Orientation: Sensor(s): Temperature XDCR Firmware: MOTHERBOARD 725S2020-00 Rev. A1 CPU Firmware: 6.37 PT LCA Version: 85d3 Demod LCA Version: ad47...
  • Page 106: Pt0 - Help

    Appendix C Table C-7: Error Code Hex to Binary Conversion Hex Digit Binary Hex Digit Binary 0000 1000 0001 1001 0010 1010 0011 1011 0100 1100 0101 1101 0110 1110 0111 1111 To convert error code $32CF (note: the dollar sign “$” signifies hexi- decimal), convert 32CF to binary.
  • Page 107: Pt1 - Board Level Receive Test

    ADFM Commands PT1 – Board Level Receive Test Purpose: This test displays receive path characteristics with lower thresholds than PT3 since the preamplifier in the transducer is disconnected during the test. Format: Description: The test result is given as four nibbles (1 nibble = 4 bits). Each nibble represents the result for a particular beam (most significant nibble = beam 1, least significant nibble = beam 4).
  • Page 108: Pt2 - Ancillary System Data

    Appendix C PT2 - Ancillary System Data Purpose: This test displays the values for ambient temperature and the VDD3, VDD1, and VDC voltages. Format: Description: This test reads Timing Generator ADC channels 3 through 6 (see PT1 test for a description of each channel), performs a conversion, and displays the values for ambient temperature, VDD3, VDD1, and VDC.
  • Page 109: Pt4 - Transmit Path

    ADFM Commands >pt3 Correlation Magnitude: High Gain RSSI: DAC Sin: DAC Cos: Duty: LPF: Receive Test Results = $00002000 ... PASS PT3 Failure Description You can determine failure results ($>0) by the individual bit settings: BIT # PT3 Failure Description: 0,4,8,12 Low Correlation –...
  • Page 110: Pt5 - Electronics Wrap Around

    Appendix C Transmit Test Results = $40 ... PASS ----------- BEAM 3 ----------- IXMT 40.9 Ml Amps peak VXMT 5.4 Volts peak RXMT 133.0 Ohms Transmit Test Results = $40 ... PASS ----------- BEAM 4 ----------- IXMT 38.1 Ml Amps peak VXMT 5.5 Volts peak RXMT...
  • Page 111: Pt6 - Receive Bandwidth

    ADFM Commands Electronics Test Results = $00000000 ... PASS PT5 Failure Description You can determine failure results ($>0) by the individual bit settings: BIT # PT5 Failure Description Beam 1 Failure - A high value (normally 255) was <254, or a low value (normally 0) was >20.
  • Page 112: Pt8 - Checksum Lookup Tables

    Appendix C PT8 - Checksum Lookup Tables Purpose: Checks the integrity of the embedded Correlation and ArcTan lookup tables, as well as the firmware. Format: Description: PT8 computes a checksum on the firmware (or Flash) and compares it to an internally stored checksum written during the flash download process.
  • Page 113: C-2.5 Discharge Commands

    ADFM Commands C-2.5 Discharge Commands The ADFM uses the following commands to calculate the discharge. QB - Bed Level Purpose: Sets the bed level in the pipe or channel. Format: QBnnnn Range: 0 to 2000 mm Default: QB0000 Description: Use this command if the bottom of the pipe or channel has filled in with silt.
  • Page 114: Qf - Force Depth

    Appendix C QF - Force Depth Purpose: Force the depth of the channel or pipe to a set value. Format: QFnnnnn Range: nnnnn = 1 to 10000 mm (0 = off) Default: QF00000 Description: Force the depth of the channel or pipe to a set value. QH - Pipe Heights/Epsilons Purpose: Sets the height/epsilons value of the pipe or channel.
  • Page 115: Qp - Disc Params

    ADFM Commands QP - Disc Params Purpose: Sets the values used in the profiling algorithm and the power law exponent used in the ModVA flow rate algorithm. Format: QPnnnn,nnnn Range: nnnn = Delta, N (0 = calculate, not 0 = fixed) Default: QP0500,0250 Description:...
  • Page 116: Qw - Pipe Widths/Radii

    Appendix C QW - Pipe Widths/Radii Purpose: Sets the width/radii value of the pipe or channel. Format: QWnnnn,nnnn,nnnn Range: nnnn = 0 to 9999 Default: QW0100,0100,0100 Description: Use this command to describe the width/radii values of the pipe or channel (see Figure C-134). QZ - Zero Discharge Accumulation Purpose: Zeros the discharge accumulation.
  • Page 117: C-2.6 Recorder Commands

    ADFM Commands C-2.6 Recorder Commands The following paragraphs list all the ADFM recorder commands. Here is the basic sequence for an ADFM deployment using the data recorder. a. Use the RA, RB, and RS-commands to display the current number of deployments stored in the recorder, to blank-check recorder memory, and to check the free space available on the recorder.
  • Page 118: Rb - Blank Check Megabyte

    Appendix C RB - Blank Check Megabyte # Purpose: Verifies recorder memory is fully erased (blank). Format: RBnnn Range: nnn = 000 to 999 (0 = check all recorder memory) Description: RB lets you check the status of recorder memory. RB tells you whether the selected megabyte of memory is BLANK (no data stored) or USED (data stored).
  • Page 119: Rd - Current Deployment Selected

    ADFM Commands RD - Current Deployment Selected Purpose: Selects the current deployment to retrieve. Format: RDnnn Range: nnn = 000 to 999 Description: RD lets you select the recorded deployment to retrieve. When the CS-command is sent after an RD>0 command, recorder data are output from the recorder in the format selected by the CF-command.
  • Page 120: Rs - Recorder Space Used/Free

    Appendix C In ASCII mode (CFxx0xx), the ADFM returns the message "Jumped: xxxxx", where xxxxx is the actual number of ensem- bles skipped. Usually, xxxxx = nnnnn, except when trying to jump beyond a deployment boundary. Example: >CF 01010 {SET MANUAL ENSEMBLE CYCLING} >RJ 99999 ERR 021: SELECT DEPLOYMENT FIRST (RD ###)
  • Page 121: Rt - Recorder Bit

    ADFM Commands >RS RS = 002,022 ---- REC SPACE USED (MB), FREE (MB), (999 = ERASING) This shows the ADFM contains a 24-MB recorder (2 + 22). Up to 2 MB of space is used with 22 MB of free space. If at least one byte is written to recorder memory, RS will show that a full megabyte is used.
  • Page 122: Ry - Start Ymodem

    Appendix C RY - Start YModem Purpose: Uploads recorder data to a host computer using standard YMODEM protocol. Format: RYnnn Range: nnn = 1 to 999 (0 = all) Default: RY000 Description: RY uploads the entire contents of the recorder via the serial interface to a host computer using the standard YMODEM protocol for binary file transfer.
  • Page 123: C-2.7 Timing Commands

    ADFM Commands C-2.7 Timing Commands The following commands let you set the timing of various profiling func- tions. TE - Time Per Ensemble Purpose: Sets the minimum interval between data collection cycles (data ensembles). Format: TEhhmmssff Range: hh = 00 to 23 hours mm = 00 to 59 minutes ss = 00 to 59 seconds ff = 00 to 99 hundredths of seconds...
  • Page 124: Tp - Time Per Ping

    Appendix C mediately after receiving the CS-command (see note), do NOT enter a TF-command value. Notes: Even though you may send a TF command to the ADFM, you must also send the CS command before deploying the ADFM. If the entry is not valid, the ADFM sends an error message and does not update the wake-up time.
  • Page 125: Ts - Set Real-Time Clock

    ADFM Commands TS - Set Real-Time Clock Purpose: Sets the ADFM’s internal real-time clock Format: TSyymmddhhmmss Range: yy = 00-99 year mm = 01-12 month dd = 01-31 day hh = 00-23 hour mm = 0-59 minute ss = 00-59 second Description: Sets the real time clock.
  • Page 126: C-2.8 Vertical Beam Commands

    Appendix C C-2.8 Vertical Beam Commands The following commands define the vertical beam criteria used to track the surface. VC - Proofing of depth Purpose: Requires nnn successful surface detections before outputting a new surface range. Format: VCnnn Range: nnn = 0 to 12 (0 = Off, 2-12 Pings) Default: VC000 Description:...
  • Page 127: Vn - Vertical Beam Number Of Depth Cells

    ADFM Commands deep tracking. This allows the ADFM to change with condi- tions during the course of the deployment. VN - Vertical Beam Number Of Depth Cells Purpose: Sets the number of depth cells over which the ADFM collects data for the vertical beam. Format: VNnnn Range:...
  • Page 128: C-2.9 Water-Profiling Commands

    Appendix C C-2.9 Water-Profiling Commands The following commands define the water-track (WT) criteria used to col- lect the water current velocity data throughout the water column. WC - Correlation Threshold Purpose: Sets the minimum threshold of water-track data that must meet the correlation criteria.
  • Page 129: Wf - Wt Blank After Transmit

    ADFM Commands depth cell. WE screens for error velocities in both beam and transformed-coordinate data. WF - WT Blank After Transmit Purpose: Moves the location of first depth cell away from the trans- ducer head to allow the transmit circuits time to recover be- fore the receive cycle begins.
  • Page 130: Wn - Wt Number Of Depth Cells

    Appendix C WN - WT Number Of Depth Cells Purpose: Sets the number of depth cells over which the ADFM collects data. Format: WNnnn Range: nnn = 001 to 128 depth cells Description: The range of the ADFM is set by the number of depth cells (WN) times the size of each depth cell (WS).
  • Page 131: Wv - Wt Mode 1 Ambiguity Velocity

    ADFM Commands WV - WT Mode 1 Ambiguity Velocity Purpose: Sets the radial ambiguity velocity for profiling Mode 1 (WM1) and the Mode 1 portion of profiling Mode 4 (WM4). Format: WVnnn Range: nnn = 020 to 999 cm/s Description: Set WV as low as possible to attain maximum performance, but not too low or ambiguity errors will occur.
  • Page 132 Appendix C NOTES page C-52 MGD Technologies, Inc.
  • Page 133: Adfm Hot Tap Insertion

    ADFM Hot Tap Insertion Appendix ADFM Hot Tap Insertion Introduction The ADFM Hot Tap Insertion (HTI) flow meter is a variant of the standard, open channel ADFM flow monitoring system. The HTI transducer is a miniaturized version of the standard ADFM transducer. Designed specifi- cally for use in closed or pressurized pipes, the HTI transducer enables in- stallation while a pipe is still fully pressurized and in service.
  • Page 134 Appendix D Power Requirements The ADFM Hot Tap insertion transducer is designed to operate using the standard ADFM electronics package and enclosure. The system can operate with either 12 to 36 VDC or 110 VAC power. No special power require- ments are necessary.
  • Page 135 ADFM Hot Tap Insertion Proper insertion distance can be determined by selecting a reference point on the end housing, measuring the distance from that reference point to the end of the sensor head, and subtracting from that distance the thickness of the pipe wall and lining PLUS 1/8”.
  • Page 136 Appendix D TRANSDUCER HOUSING Align the scribe mark on the housing with the longitudinal axis of the pipe. PIPE TAP ASSEMBLY 2 INCH DIAMETER TAP IN PIPE WALL TRANSDUCER HEAD 1/8 INCH FLOW (Long axis of the pipe) PIPE INTERIOR WALL Figure D-2.
  • Page 137 ADFM Hot Tap Insertion D-4.2 System Setup and Testing Setup and testing of the ADFM HTI system is identical to that of the stan- dard ADFM. Please refer to Chapter 2 in the ADFM Technical Manual for setup and operation guidelines. Technical Specifications NOTE.
  • Page 138 Appendix D D-5.2 Packaging and Environmental Specifications Transducer Operating Temperature 23 to 95º F (-5 to 35º C) Housing Material Plastic transducer assembly on corrosion resistant stainless steel stem Static Pressure 250 psi (1700 kPa) Nominal - 17 atmospheres, ~550 ft (165 m) Weight 9 lb (4.1 kg) Transducer Signal Cable...
  • Page 139: Adfm Analog Output Module

    ADFM Analog Output Module Appendix ADFM Analog Output Module Introduction The ADFM Analog Output Module is an optional component of an ADFM (Acoustic Doppler Flow Monitor) flow monitoring system. It enhances the operation of a standard ADFM by providing a local data display and addi- tional output options.
  • Page 140: Appendix-E

    Appendix E Totalized flows can be reported on the LCD display, and can be output as a pulse per unit volume. Processor and display limitations currently do not allow totalized flow and velocity to be displayed and output simultaneously. Pulse outputs are available as both dry contact closures and +5v pulses for driving an external totalizer or sampler.
  • Page 141 ADFM Analog Output Module CAUTION. Installation, programming, calibration, and servicing of this device should be performed by properly trained and qualified personnel. Potential shock hazards may exist when operating this device with the front cover removed. Power should be removed from this device during installation and servicing.
  • Page 142 Appendix E for this set of mounting holes is approximately 7.48” x 4.72” (190mm x 120mm). These mounting holes should only be used in dry, interior loca- tions as the mounting screws directly penetrate the enclosure wall. E-2.3 Enclosure Disassembly/Assembly Disassembly of the ADFM Analog Output Module for access to the mount- ing holes on the back of the enclosure, or for component replacement, is accomplished using the following sequence.
  • Page 143 ADFM Analog Output Module Pin # Wire #-Color TB1 pin Function 5-Orange RS-422, DATCOM Not Used 6-Blue RS-232, RX 7-White/Black RS-232, TX 8-Red/Black RS-232, SG 9-Green/Black Depth2, GND 10-Orange/Black Depth2, DC+ 11-Blue/Black Depth2, A+ 12-Black/White Phone, C1 13-Red/White Phone, Tip 14-Green/White Phone, Ring 15-Blue/White...
  • Page 144 Appendix E log outputs on these channels are generated using DGH Corporation Model 3251 current output modules. These modules act as four wire transmitters, i.e. power to the analog loop is provided by the DGH module. Each analog output is electrically isolated from the remainder of the unit’s circuitry. Analog output channels are designated as Flow (QA+, QA-), Depth (DA+, DA-), and Velocity (VA+, VA-).
  • Page 145 ADFM Analog Output Module NOTE. Remember to return these switches to the “On” position when setup or calibration is complete, or the ADFM Analog Output Module will not function as intended. E-3.1 Standard DGH Module Setup All DGH modules used in the ADFM Analog Output Module should be configured for operation at 2400 baud using channel address “1”.
  • Page 146 Appendix E command will begin with “$1”, followed by a two or three letter command and its parameters. The command syntax used to set the analog output level of the DGH module is “AO+nnnnn.nn”, where “nnnnn.nn” is the desired output level in milli-amps. NOTE.
  • Page 147 ADFM Analog Output Module e. Repeat steps c and d, substituting the full scale output value (20.0 mA) for the zero scale output value and the “TMX” command for the “TMN” command. Example: Enter “$1AO+00020.00”-output value is measured as 19.85 mA Enter “$1WE”...
  • Page 148 Appendix E E-4.1 General Operation of the ADFM Analog Output Module Once programmed, the ADFM Analog Output Module follows a defined sequence of operation. Most simply expressed, it will: a. Wait for data from its associated ADFM b. Parse the incoming data stream to obtain the depth, velocity, and flow rate c.
  • Page 149 ADFM Analog Output Module E-4.3 Programming and Operation The micro-controller in the ADFM Analog Output Module is most easily programmed using the Windows95 based software available from Parallax. Programming the micro-controller consists of the following steps: a. Starting the software, opening the program file for the site b.
  • Page 150 Appendix E Troubleshooting The ADFM Analog Output Module performs a relatively simple function; that of converting data from the ADFM’s binary data format to an analog current signal proportional to flow. The module will normally be installed and configured by a trained technician, and should continue to function in- definitely.
  • Page 151 ADFM Analog Output Module Table E-4: Symptom: Unusual or Erroneous Output Readings Possible Cause(s) Test/Corrective Action(s) Improper Calibration Compare analog output(s) with display values Check calibration of DGH module(s) Test DGH module output(s) Test/verify plant equipment inputs Improper Scaling Compare ADFM output data to ADFM Analog Output Module’s display and analog output(s) Verify module’s units and scale settings Verify plant equipment scaling...
  • Page 152 Appendix E NOTES page E-14 MGD Technologies, Inc.
  • Page 153: February

    * This warranty applies to the USA and countries where Teledyne Isco Inc. does not have an authorized dealer. Customers in countries outside the USA, where Teledyne Isco has an authorized dealer, should contact their Teledyne Isco dealer for warranty service.

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