Broadcast Power Monitor Series BPM-E Model 3129 Digital Display OPERATING INSTRUCTIONS ©Copyright 2012 by Bird Electronic Corporation Instruction Book P/N 920-7005ABPME Rev. H Thruline® is a registered trademark of Bird Electronic Corporation Microsoft® and Windows® are registered trademarks of the Microsoft Corporation Java® is a registered trademark of Sun Microsystems, Inc.
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Safety Precautions The following are general safety precautions that are not necessarily related to any specific part or procedure, and do not necessarily appear elsewhere in this publication. These precautions must be thoroughly understood and apply to all phases of operation and maintenance. WARNING Keep Away From Live Circuits Operating Personnel must at all times observe general safety precautions.
Safety Symbols WARNING Warning notes call attention to a procedure, which if not correctly performed, could result in personal injury. CAUTION Caution notes call attention to a procedure, which if not correctly performed, could result in damage to the instrument. Note: Calls attention to supplemental information. The caution symbol appears on the equipment indicating there is important information in the instruction manual regarding that particular area.
WARNING Dangerous RF voltage. Do not connect or apply an RF signal to the BPM-E during equipment setup. Failure to comply may result in severe burns, loss of use of limbs, or death. See pages 19, 21, and 22. WARNING Disconnect the unit from the RF power source and the ac line before any disassembly. The potential for electrical shock exists. See page 41. Caution Statements The following equipment cautions appear in the text and are repeated here for emphasis.
Safety Statements USAGE ANY USE OF THIS INSTRUMENT IN A MANNER NOT SPECIFIED BY THE MANUFACTURER MAY IMPAIR THE INSTRUMENT’S SAFETY PROTECTION. USO EL USO DE ESTE INSTRUMENTO DE MANERA NO ESPECIFICADA POR EL FABRICANTE, PUEDE ANULAR LA PROTECCIÓN DE SEGURIDAD DEL INSTRUMENTO. BENUTZUNG WIRD DAS GERÄT AUF ANDERE WEISE VERWENDET ALS VOM HERSTELLER BESCHRIEBEN, KANN DIE GERÄTESICHERHEIT BEEINTRÄCHTIGT WERDEN.
SERVICE SERVICING INSTRUCTIONS ARE FOR USE BY SERVICE TRAINED PERSONNEL ONLY. TO AVOID DANGEROUS ELECTRIC SHOCK, DO NOT PERFORM ANY SERVICING UNLESS QUALIFIED TO DO SO. SERVICIO LAS INSTRUCCIONES DE SERVICIO SON PARA USO EXCLUSIVO DEL PERSONAL DE SERVICIO CAPACITADO. PARA EVITAR EL PELIGRO DE DESCARGAS ELÉCTRICAS, NO REALICE NINGÚN SERVICIO A MENOS QUE ESTÉ CAPACITADO PARA HACERIO. WARTUNG ANWEISUNGEN FÜR DIE WARTUNG DES GERÄTES GELTEN NUR FÜR GESCHULTES FACHPERSONAL.
RF VOLTAGE MAY BE PRESENT IN RF ELEMENT SOCKET - KEEP ELEMENT IN SOCKET DURING OPERATION. DE LA TENSION H.F. PEAT ÊTRE PRÉSENTE DANS LA PRISE DE L'ÉLÉMENT H.F. - CONSERVER L'ÉLÉMENT DANS LA PRISE LORS DE L'EMPLOI. HF-SPANNUNG KANN IN DER HF-ELEMENT-BUCHSE ANSTEHEN ELEMENT WÄHREND DES BETRIEBS EINGESTÖPSELT LASSEN. PUEDE HABER VOLTAJE RF EN EL ENCHUFE DEL ELEMENTO RF MANTENGA EL ELEMENTO EN EL ENCHUFE DURANTE LA OPERACION.
About This Manual This manual covers the operating and maintenance instructions for the following models: 3129 Figure 1 BPME BPM-E Model Identification 1 2 3 4 BPME ___ ___ - ___ ___ Item Description Options 1 Line Section 1 = 1 - 5/8” 3 = 3 - 1/8” 4 = 4 - 1/16” 4A = 4 - 1/2” 6 = 6 - 1/8” 2 Line Interface U = Unflanged, Recessed Center Cond. UF = Unflanged, Flush Center Cond.
Figure 2 BPM-E7 Model Identification 1 2 3 4 5 6 BPME 7 ___ ___ - ___ ___ ___ Item Description Options 1 Line Section 7 = 7/8” 2 Input Connector A = N (F) B = N (M) C = LC (F) D = 7/8” EIA H = 7/16 DIN (F) J = 7/16 DIN (M) K = UHF (F) L = UHF (M) 3 Output Connector A = N (F) B = N (M) C = LC (F) D = 7/8” EIA H = 7/16 DIN (F) J = 7/16 DIN (M) K = UHF (F) L = UHF (M) 4 Frequency Band VL = 45 - 88 MHz V = 88 - 230 MHz U = 470 - 890 MHz 5 Power L = Low M = Medium H = High refer to power
Changes to this Manual We have made every effort to ensure this manual is accurate. If you discover any errors, or if you have suggestions for improving this manual, please send your comments to our Solon, Ohio factory. This manual may be periodically updated. When inquiring about updates to this manual refer to the part number and revision on the title page.
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Table of Contents Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i Safety Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii Warning Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii Caution Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii Safety Statements . . . . . . . . . . . . . .
3129 Digital Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +14 Mounting a 3129 Digital Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 AC Power Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Alarm Interlocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Remote Computer Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 5 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Inspection and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 3129 Digital Display Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 BPM-E Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Chapter 1 Introduction This chapter contains introductory information including items supplied and component descriptions. Broadcast Power Monitor The Enhanced Bird Broadcast Power Monitor (BPM-E) is a compact, microprocessor controlled instrument intended for long-term system VSWR and power monitoring. The BPM-E is designed for use only with shielded (grounded) 50 ohm transmission lines. See Figure 31 on page 49 for an outline drawing with dimensions.
Optional Items Available 3129 Digital Display - Displays the BPM-E status and provides power to the BMPE electronics. Includes a power cord, a 50 foot 9-pin cable, and a 50 foot 15pin cable. DB-15 Power/Alarm Cable - Connects the BPM-E to a power supply and to external controllers. 50 feet long with male/female connectors. Refer to Figure 7 on page 16 for pin layout. DB-15 Interface Connector - Allows easy custom data cable connections to the BPM-E.
Component Description Figure 1 BPM-E Components 2 1 3 4 5 6 7 9 Item (Fig. 1) Function 8 Description 1 RF Input Input to BPM-E from transmitter 2 Power/Alarm Parallel Port Connects to the 3129 digital display using a 15 pin cable. Note: Also used for remote operation.
7 4 POWER/ALARM RFL FWD ANALOG OUTPUT RM AL M LRM T SE UT OR LR A RE L O N F O A NO ND TE TT MO N ED OU EMO LRM OM PEN LOS R G R A C O C 9 Electronic Corporation Cleveland, Ohio USA Phone: (440) 248-1200 www.bird-electronic.com MODEL 3129 S/N Units Alarm 10 SENSOR INTERFACE Mode Reset 11 RS-232 Model 3129 FUSE 1.0A, 250 V LINE 115/230 VAC 50/60 Hz .6A MAX.
Item (Fig. 2) Function Description 1 AC Power Connector Connect to ac power supply with a power cord 2 Alarm Interlocks Alarm interlocks are used to shut down transmitter when an alarm condition occurs.
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Chapter 2 Theory of Operation General Theory The enhanced Broadcast Power Monitor (BPM-E) is an instrument that is inserted directly into a transmission line to monitor the forward power, reflected power, and VSWR of the system. The BPM-E consists of a line section with forward and reflected directional couplers and an additional housing that contains the external circuitry. The external circuitry consists of a detector circuit and a control circuit (Figure 3, page 7).
Alarm Response When an alarm is triggered, the Bird Broadcast Power Monitor turns on the alarm LEDs, provides a TTL alarm out signal (low = alarm), and deactivates a form-C dry contact relay. Additionally the BPM-E can latch the alarm condition and notify up to two persons via email if you have set up this option in the WebTool software. Note: The alarm relay defaults to fail safe. That is, the relay is deenergized when an alarm activates or when power is lost.
• If: •The VSWR is equal to or slightly greater than the maximum, additional measurements are accumulated to determine a trend. •Reverse power is increasing, an alarm is triggered. •The reverse power is stable, measurements continue until a trend is established. An alarm will be set if the VSWR exceeds the maximum for more than thirty seconds. • If the VSWR is much greater than the maximum then an alarm is triggered immediately. Alarm on Zero Power When the forward power is very small (< 2.
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Chapter 3 Installation This chapter provides information for preparing the Bird Broadcast Power Monitor for use. Unpacking and Inspection 1. 2. 3. Carefully inspect the shipping container for signs of damage. If damage is noticed, do not unpack the unit. Immediately notify the shipping carrier and Bird Electronic Corporation. If the shipping container is not damaged, unpack the unit. Save the packing material in case the unit needs to be shipped again.
WARNING High RF voltage and energy is always present in the RF Test Port when the system is operating. Do not operate the system if the BPM-E RF Test Port is open. Close the port with a dummy plug or a suitable sampling plug. Failure to comply may result in severe burns, electrical shock, or death. CAUTION BPM-E signal sensing couplers are fixed in place. Do not attempt to remove or rotate the couplers.
Flanged Connector To connect a flanged unit to a flanged RF transmission line, use an appropriate coupling kit. Refer to Figure 5, page 13 for RF input and output orientation. 1. Insert the center connector (bullet). Note: Push the connector until it is fully seated. 2. Connect the coaxial input in a straight line. Note: Push carefully to close. 3. 4. Insert the bolt sets. Tighten the bolt sets evenly all around to transmission line manufacturer’s recommended torque. Note: Use all of the bolts.
3129 Digital Display Note: When using with a BPME, it is recommended to connect the 3129 directly to a universal power source (UPS). Mounting a 3129 Digital Display Install the digital display in a standard (1U) rack mount. AC Power Connector The AC Power connector (Figure 2 on page 4) provides operating power for the digital display and the BPM-E electronics. The AC power supply cord is also the line disconnect device for this product.
Pin # New Label Text and Description (Fig.
BPM-E DC Power Connections Connect DC operating power to the BPM-E Power/Alarm 15-pin connector. The BPM-E requires an isolated +12 to +26 VDC power supply (0.5 A max). This power is available from the Power/Alarms connector at the rear of the 3129 Digital Display. If your installation does not use a 3129 Digital Display, you must provide the required power and connect it to the BPM-E Power/Alarm 15-pin connector.
BPM-E Data Connections The BPM-E has an RS-232 connector and an ethernet connector. The RS-232 connector conducts ASCII data between the BPM-E and a display panel or a PC. The ethernet connector conducts data between the BPM-E and a network device (hub, router, PC with network capability). Figure 8 on page 17 shows how a BPM-E can be connected to a Bird 3129 Digital Display. RS-232 pin numbers and descriptions are given in Figure 10 on page 18.
Figure 9 BPM-E Front Panel Data Connections Electronic Corporation Model 3129 Mode Units Alarm Reset Remote True Average Power 2 1 3 Item 1 3129 Digital Display, front panel 2 3129 Remote computer connector 3 Computer (PC) Figure 10 DB-9 RS-232 Connector Pin 18 Description Description 1 Carrier Detect, always > +5 C 2 Transmit Output, RS-232 data signal 3 Receive Input, RS-232 data signal 4 Data Set Ready Input, connected but not used 5 Data Signal Ground 6 Data Terminal Re
Setting Up the BPM-E Note: It is recommended to connec the BPME directly to a universal power source (UPS). If you connect directly to a display instead of a computer or network, you can begin using the BPM-E, as shipped, with the factory default alarm and frequency settings. However, you should change the settings (frequency, alarms, etc.) to fit your application.
Figure 11 5. PCTool Installation Screen Do one of the following to set up your BPM-E: If you connect your BPM-E directly to a display panel (such as the Bird 2139 Digital Display) using an RS-232 cable, or you connect it directly to a PC using an RS-232 cabl, follow the setup instructions described in See “Connecting the BPM-E Using the RS-232 Port” on page 20.
WARNING Dangerous RF voltage. Do not connect or apply an RF signal to the BPM-E during equipment setup. Failure to comply may result in severe burns, loss of use of limbs, or death. WARNING Do not connect RF power to the unit. 3. 4. 5. Apply operating power to the BPM-E. Refer to "BPM-E Data Connections" on page 17). Launch PCTool from your hard drive. Specify which COM (serial) port the BPM-E will use: a. On the Menu bar, click on Connection and select New.... b.
Connecting the BPM-E Using the Ethernet Port When you connect to the BPM-E using the ethernet port, you use the WebTool software to setup the BPM-E. You do not need to install the WebTool software because it is part of the BPM-E firmware. Note: You must have Java runtime installed before you can use the WebTool software. CAUTION Network connections require specific address and protocol information. Have a qualified IT or network professional perform the BPM-E ethernet setup.
Figure 13 Ethernet Connection Flowchart Use a cross-over Ethernet cable to connect BPM-E to computer Record the BPM-E serial number Will you connect directly to the BPM-E for setup? YES Record the IP and subnet address of your computer NO Connect BPM-E to network with a standard Ethernet cable Does your network have a DHCP server? NO YES Change your computer IP to 169.254.x.x and subnet to 255.255.0.0 1. Start the BPMEFinder utility on your computer 2. Enter the subnet mask as 255.255.0.0 3.
A When you click on the serial number that matches your unit, the WebTool starts. If WebTool doesn’t start, your web browser is not in your path. Either add it to your path or open your Web browser and enter the IP address of the BPM-E in the address bar. http:// B D Click on ‘Email Alerts’ tab and check the ‘Enabled’ box. Fill out ‘Email From’ field to set the BPM-E’s name on the network (or leave it as is to identify the BPM-E it by serial number).
E Click ‘Apply all Changes’ If computer IP address or subnet mask were changed, restore the original settings. When BPM-E is attached to its final destination network or computer, connect to it either by typing its IP address or host name in the address bar of your web browser, or use the BPMEFinder with your network or computer’s subnet mask to find and connect to the BPME.
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Chapter 4 Operating Instructions This chapter provides a description of controls and indicators on the BPM-E and the 3129 Digital Display. Read and become familiar with the following instructions before operating the unit. Couplers The BPM-E does not use elements to sense the RF signal. It uses couplers. The couplers are fixed in place. CAUTION BPM-E signal sensing couplers are fixed in place. Do not attempt to remove or rotate the couplers.
Mode Button Press MODE to cycle through the possible display modes for the right half of the display, which are: • • • • • Reflected Power Match Efficiency (%) Return Loss (dB) VSWR (SWR) Reflection Coefficient (ρ) Units Button Press UNITS to toggle the display between Watts (W or kW) and dBm. The unit applies to forward power and to reflected power (if it is displayed). Reset Button Resets the alarm LED if the alarm condition is no longer present.
Main Screen The Main screen is the default screen you see when you open the WebTool software (Figure 14, page 29). The Main screen identifies the BPM-E at the top of the window. The center of the screen displays measurement data that is being received from the BPM-E. You can set the refresh rate from 1 second to 60 seconds (how frequently the software updates the data from the BPM-E).
Figure 15 Alarm Active Message Reset Alarm Stats Screen The Stats screen (Figure 16 on page 30) can chart and display historical data stored in the BPM-E memory. You can chart forward and reflected power readings and alarm conditions (low power, high power, and VSWR alarm). You can display the data in either a line graph or a bar chart. The BPM-E keeps data for a 365 day period. You select the starting day (in the Begin field) and the number of days to view.
Config Screen The Config (Configure) screen has two tab views, Alarms and Frequency. The administrator of the WebTool can set an optional password requirement to control who can make changes to the Config screen (refer to Admin Screen for password control). For more information about the Config screen, refer to the help section in the software (click on the Help button). Alarm Tab In the Alarms tab (Figure 17, page 32), you specify BPM-E alarm settings.
Figure 17 WebTool Config Screen, Alarms Frequency Tab In the Frequency view (Figure 18 on page 32), you specify monitor frequencies and then apply that configuration to the BPM-E. Click the View Channel List button to display a list of United States television channels and their frequencies (Figure , page 32). To add a frequency to the Selected Frequencies list, type it in the Frequency (MHz) field, then click the Add button.
Admin Screen The Admin screen has four tabs, Network, Email Alerts, SNMP, and Passwords. After making changes in one or all of the tabs, click the Apply All Changes button to record your settings in memory. For more information about the Admin screen, refer to the help in the software (click on the Help button).
Figure 20 WebTool Admin Screen, Email Alerts SNMP Tab In the SNMP tab (Figure 21 on page 34), you can specify setup for the SNMP feature if you have chosen to use it. Contact your IT professional for assistance. You can obtain the latest MIB file from the Bird Technologies web site.
Password Tab In the Password tab (Figure 22 on page 35), you can set the administrator password and the optional configuration access password. When you set or change a password, you must type the password a second time in the appropriate “confirm” field before it will be accepted. You must have a password to view and edit the Admin screen. The default password is “bird” (lower case without the quotes). After you make changes, click on the Apply All button.
PCTool Software The BPM-E PCTool software is used to monitor the measurement outputs from the BPM-E and to set and change alarm configurations. This software is a stand-alone application that must be installed onto your PC. To use the tool, launch it from the computer’s operating system menus or from a shortcut on your desktop. Note: Your PC must have the Java runtime environment (java virtual machine) installed to run the PCTool software.
Connection The PCTool software must be set to use the correct computer COM port to communicate with the BPM-E. The default port is COM 1. To change the Com port, select Connection from the Menu bar, then select New. Choose the COM port you want from the drop-down list in the dialog box then click OK (Figure 24, page 37). Note: The Connection menu also has a Close command. Choosing the Close command will close (break) the COM port connection to the computer.
The alarm condition area displays information in three colors: No alarm (green text) - No alarm condition exists Latched (red text) - An alarm has happened, but has cleared Alarm (red text) - An alarm has happened and is identified (VSWR, High Pwr, Low Pwr, or any combination of these if more than one alarm exists) If an alarm has occurred and has not been reset, the alarm text will be red and will display which alarm (or alarms) occurred (Figure 25, page 38).
Figure 26 Config Screen, Alarm Tab You can select or deselect the following alarm conditions: Master Alarm Enable - When checked, activates the VSWR alarm and enables all other alarm conditions that have been selected (boxes checked), disables all alarms when not checked. VSWR trip point - Specify the VSWR value that will cause an alarm (select values from the drop-down list). This value is adjustable from 1.3 to 2.5 by increments of 0.1.
Frequency Tab In the Frequency tab (Figure 27 on page 40), you specify monitor frequencies and then apply that configuration the BPM-E. Click the View Channel List button to display a list of United States television channels and their frequencies (Figure 28, page 40). To add a frequency to the Selected Frequencies list, type it in the Frequency (MHz) field, then click the Add button. To remove a frequency from the list, click on the frequency to select it, then click on the Remove button.
Chapter 5 Maintenance This chapter contains cleaning, troubleshooting, specifications, and part information for the Bird Broadcast Power Monitor and the 3129 Digital Display. Inspection and Cleaning This unit requires only simple and routine maintenance. WARNING Disconnect the unit from the RF power source and the ac line before any disassembly. The potential for electrical shock exists. CAUTION Do not use harsh or abrasive detergents for cleaning. 1. 2. Wipe off dust and dirt regularly.
Figure 29 3129 Digital Display, Fuse Location 1 2 3 Item Description 1 Fuse holder tab, pry outward to remove fuse holder 2 Fuse holder 3 Fuse Specifications BPM-E Specifications 42 Frequency Range VHF low VHF UHF 45 – 88 MHz 88 - 230 MHz 470-890 MHz Dynamic Range, Min 20 dB Max Allowable Peak/ Average Ratio 10 dB min. at max RF power Insertion Loss, Max 0.
Detection Method True Average Power Impedance 50 ohms Accuracy Power Calibrated for FM band TV Channels 1-6 TV Channels 7-83 VSWR Display Resolution RMS Noise Connectors, RF RS-232 Serial Port Connector Protocol DC Power Required Analog Outputs Ethernet port Network Interlace Compatibility Protocols Left LED Right LED Security Power/Alarm Parallel Port Display Options NOTE: Refer to See “Factors that Affect Power Reading Accuracy” on page 7 in the Theory of Operation to learn about factors that can c
Alarm Alarm Relay Relay Contact Rating VSWR set points Alarm Stimulus Alarm Response Alarm Reset Alarm Power Up Dry, contacts, with common, normally open, and normally closed connections (form C) 100 Vdc @ 0.5 A 1.3 to 2.5:1 by 0.1 steps, measurement limited by max input power VSWR, high forward power, low forward power Turn on red LED; trip relay; set software flag; set alarm line low (<0.
Remote Computer Connector Connector Protocol Female DB-9 RS-232, 9600 baud, no parity, 8 data bits, 1 stop bit, no handshake AC Power Requirements 115/230 Vac @ 50/60 Hz, 0.6 A AC Connector Domestic North American Power Cord Standard Type SVT, 300 Vac, 18 AWG, 10 A, 3 conductor (including ground) Type H05VV-F, 300 Vac, 1.00 mm, 10 A, 3 conductor (including ground) International Temperature Operating Storage –10 to +50 °C (+14 to 122 °F) –40 to +80 °C (–40 to +176 °F) Humidity 95% max.
RF Power Range, UHF Frequency Band (470-890 MHz) Line size 46 Unit power range Measurable Range, Fwd Measurable Range, Rfl 7/8” High Med Low 2500 - 25 W 1000 - 10 W 250 - 2.5 W 250 - 2.5 W 100 - 1 W 25 - 0.25 W 1-5/8” High Med Low 5000 - 50 kW 2000 - 20 W 500 - 5 W 500 - 5 W 200 - 2 W 50 - .05 W 3-1/8” High Med Low Extra Low 25 - 0.25 kW 10 - 0.1 kW 2500 - 25 W 1000 - 10 W 2500 - 25 W 1000 - 10 W 250 - 2.5 W 100 - 1 W 4-1/16” and 4-1/2” High Med Low 40 - 0.4 kW 15 - 0.
Troubleshooting The Bird Broadcast Power Monitor has no operator serviceable parts. Any required service must be performed at an authorized service facility. The table below contains troubleshooting information for problems which can occur during normal operation. This manual cannot list all malfunctions that may occur or their corrective actions. If a problem is not listed or is not corrected by the listed actions, notify a qualified service center.
RF Power Ratings For power ratings based upon line sizes, refer to See “Specifications” on page 42. Note: For a specific frequency and line size, the maximum safe operating power may be lower than the full scale power measurement capability of the BPME. Line Section Max RF Power vs.
Line Section Sizes Figure 30 BMPE Dimensions, Model BPM-E7 6 11/64” (169.9 mm) 3 1/8” (79.4 mm) BPM-E7 6.5” (165 mm) BPM-E Dimensions, Flanged and Unflanged Models 4.5” (114 mm) 4.25” (106 mm) Cleveland, Ohio USA Phone: (440) 248-1200 www.bird-electronic.
Model BPME1 Connector Dim. A1 1-5/8” EIA Flanged BPME1U 1-5/8” EIA Unflanged BPME1UF 1-5/8” EIA Unflanged, Flush Center BPME3 3-1/8” EIA Flanged BPME3U 3-1/8” EIA Unflanged BPME3UF 3-1/8” EIA Unflanged, Flush Center BPME4AUF 4-1/2” IEC Unflanged BPME4D 4-1/16” Flanged, Dielectric Standard BPME4M 4-1/16” Flanged, Myat Standard BPME6 6-1/8” EIA Flanged BPME6U 6-1/8” EIA Unflanged BPME7 7/8” line, Type N connectors Dim. B Dim. C Inner Conduc tor Weight Setback 3.50” (89 mm) 1-5/8” (41.3 mm) 1-5/8” (41.
True Average Power Electronic Corporation SHOCK HAZARD 19 ” (483 mm) Model 3129 Mode TO SERVICE THIS INSTRUMENT Units REMOVE AC POWER BEFORE ATTEMPTING Alarm Reset Remote 1/8 ” (3 mm) 0.25 ” (6 mm) 4.92 ” (125 mm) 1.
Customer Service Any maintenance or service procedure beyond the scope of those in this chapter should be referred to a qualified service center. If you need to return the unit for any reason, request an RMA through the Bird Technologies website (link shown below). All instruments returned must be shipped prepaid and to the attention of the RMA number. Bird Service Center 30303 Aurora Road Cleveland (Solon), Ohio 44139-2794 Fax: (440) 248-5426 E-mail: bsc@bird-technologies.
Appendix 3 Reference Information Determining VSWR Alarm Trip Point Even though the VSWR trip point can be set to 2.5, the instrument cannot always measure VSWR above 1.9. This is due to the large amount of reflected power caused at higher VSWRs. The maximum VSWR that can be physically measured is determined by the ratio of the forward and reflected couplers at full scale. This ratio is 10:1. The maximum measurable VSWR occurs when the reflected channel is near its limit.
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Limited Warranty All products manufactured by Seller are warranted to be free from defects in material and workmanship for a period of one (1) year, unless otherwise specified, from date of shipment and to conform to applicable specifications, drawings, blueprints and/or samples.
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