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hp 34901a manualAnd by having access to our ebooks online or by storing it on your computer, you have convenient answers with 34901a Programming Manual. To get started finding 34901a Programming Manual, you are right to find our website which has a comprehensive collection of manuals listed. Our library is the biggest of these that have literally hundreds of thousands of different products represented. I get my most wanted eBook Many thanks If there is a survey it only takes 5 minutes, try any survey which works for you. See page 20 of the Agilent 34970A User's Guide (Ref 1) for more. Do not hesitate to consult the Agilent Manual if you have questions. The Agilent Technologies 34970A combines precision measurement. The Agilent IO Libraries Suite is a collection of libraries, such as VISA, SICL, and.Note: Unless otherwise indicated, this manual applies to all serial numbers. Subsequently, the user performs manual screeding (currently being. This Agilent 34970A Data Acquisition unit I bought used in broken condition. The procedure is described in the service manual and it's pretty. To find an Agilent Authorized Distributor nearest you see. Download or read online Agilent Technologies HP (Hewlett-Packard) 34902A 16-CH. ABJ Japan: Japanese manual Option ABZ Italy: Italian manual Modules 34901A.. on getting EOI. The error codes are in the Agilent manual.Included: Mainframe, power cord, user manual on CD-ROM, test report. QuickStart. the Agilent Technologies 34970A Data. The channel number has. Agilent 34970a calibration repair, agilent 34970a. Check the manual or the Quick Reference Guide for the correct command name. 3. Blanks (spaces) within the command name. Blanks are not permitted within. Tektronix Type 549 Storage Oscilloscope Instruction MANUAL WITH. HP Hewlett Packard Agilent Keysite 34970A Data Switch Service Manual 1997. Agilent 34970a User Manual.pdf but do not want to spend time programming. Agilent. Get Instant Access to eBook Agilent 8960 Manual PDF at Our Huge Library.http://ck-buhgalter.ru/userfiles/callahan-roach-flat-rate-pricing-manual.xml
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Service manual - Advance Instruments OS250 10MHz Dual Trace Oscilloscope. HP Agilent Hewlett Packard. Product Description. Hp Agilent 34970A User's Guide. Agilent, 200v-3x3, 5633A-5632A, Near field measurment system, Y. Tektronix, 2211. Agilent, 34970A, Data Acquisition switch unit, Y. Find new, used, and rental Keysight (Agilent) Technologies 34970A Multimeters,. 34970A-AB1, Korean Printed Manual Set (full documentation on CD-ROM). This manual contains getting started, calibration, specifications, theory of operation and service information for the 34970A and 34972A.Used Agilent 34970A equipment for sale. Atec Agilent-34970A-3499ABC Manual. Atec Equipment Manual in pdf. Download for free Atec Agilent-34970A-3499ABC pdf Manual without registration. Service Guide (Schematics Only). Publication Number 34970-90012 (order as 34970-90101 manual set). Agilent 34970A System Block Diagram. 221.. 1.288 KB Agilent 66332A System DC Power Supply.pdf 1.725 KB Agilent AC Power Source-Analyzers.pdf 4.313 KB Agilent Data Acquistion 34970A Manual.User manual for the device Agilent Technologies Switch 34970A. Online user manual database. A system multimeter with BOTH high speed and. Agilent 34970A error codes. Try Agilent's web site. Did you look in the Users Manual, 34970-90003, for the complete list of errors. Refer to the instrument User's manual for the settings. Julio Rodriguez. Keysight Datenlogger. Agilent's 34410A and 34411A multimeters use.Data Acquisition Cluster. Agilent 34970A Data Acquisition Systems: 8 Units. Computer Hardware. No part of this manual may be reproduced in any form or by any. Agilent BenchLink Data Logger 3 Software. Agilent BenchLink Data. The Agilent Technologies 34970A combines precision measurement capability. Note: Unless otherwise indicated, this manual applies to all serial numbers. Agilent 34970A and 34980A Data Acquisition and Switching. Easy-to-use front panel for manual setup control. 6. Seven different plug-in modules for 34970A..http://www.h-p-n.fr/catalogue_dynamique/how-to-keep-manual-inventory(1).xml (IO librairies 17.0 from Agilent), it's easy to test communication with a 34970A. Connect usb-rs232 converter to your 34970A with null modem cable, and. English: Rear view of the Agilent 34970A Data Acquisition and Control Unit with two plug-in Units 34901A for thermocouple measurements. Manual Install. Note: Unless otherwise indicated, this manual applies to all serial numbers. Buy Keysight Technologies 34970A Data Acquisition, 20 channels, 3Msps, Digital Input, 34970A. Agilent Measurement Manager, Yes, Yes, -, Yes, Yes. Choose from eight optional plug-in modules to create a compact data logger, full-featured data acquisition system or low-cost switching. Data Acquisition Test. CAD 0,13; 0 bids; CAD 1,29; Buy it now. Time left 8h 24m.. dnvers available for Agilent VEE and National Instruments LabVIEWt Built-in GPIB and RS-232 interfaces Figure 4.5. (See the 34970A manual for guidance.). The fully automated system only needs operator attention for periodic manual. Agilent Model 34970A Data Acquisition Unit, BSI Q2100-Series Multi-Tag ADC. Note: This laboratory manual is based on a manual for a very similiar experiment. Agilent 34970A. Thermo- couple. Agilent. 34901A. Agilent. 34903A. Wire.. has realized temperature test without manual intervention, greatly reducing the workload. Keywords: Temperature, Agilent 34970A, Data Acquisition, K Type. Agilent 34970A includes a digital multimeter (DMM) features, you will have. Agilent, 54542-99022, 54520 and 54540 Series Oscilloscopes Programmer's Reference. HP, 34970-90100, HP 34970A Data Acquisition Switch Unit User's Guide. Now you set up the adapter according to the manual and according to your.AGILENT, 34970A, serienummer US37029944, Data Aquisition Switch. The Agilent 34970A offers unequaled-versatility for your. The Agilent 34970A is easy to use for a-multitude of data. Option ABD Germany: German manual.GenRad 1686 Digital Capacitance Meter. Agilent 66309D Mobile Communic. Source. HP 34401 Multimeter.http://superbia.lgbt/flotaganis/1648005186 HP 34970A Data Acquisition Unit. IEEE-488 was created as HP-IB (Hewlett-Packard. Agilent Technologies, Inc. 2006. No part of this manual may be reproduced in any form or by any means (including electronic storage and retrieval or transla-. Other equipment, including the Xitron 2503AH Power analyzer and Agilent. 34970A Data Acquisition Unit, was calibrated annually. Order the Keysight (Agilent) 34970A-ABA English Printed Manual Set On Sale at Transcat. Rentals and Accredited Calibration Services Available. Note: Unless otherwise indicated, this manual applies to all serial numbers.Reload to refresh your session. Reload to refresh your session. Choose from eight optional plug-in modules to create a compact data logger, full-featured data acquisition system or low-cost switching unit. On-module screw-terminal connections eliminate the need for terminal blocks and a unique relay maintenance feature counts every closure on every switch for easy, predictable relay maintenance. Please revise your selection using valid characters only.Simply select your required attributes below and hit the button Two- and four-wire channels can be mixed on the same module. Two additional fused inputs (22 channels total) route up to 1 A of current to the internal DMM, allowing ac and dc current measurements without the need for external shunt resistors. The quantity that cant be dispatched now will be placed on back order and sent as soon as we get a delivery from our supplier.Please contact customer services. Please contact customer services.Your line note will appear next to that product in your Order Confirmation, Invoice and Dispatch note. Your line note will last for the lifetime of the order only. By repairing the original unit, you are not forced to make changes to your asset tracking system So, in the end, the most you will pay is the OEM repair cost, During this test, A2U1 turns on all display segments. Communication must function in both directions for this test to pass.http://genialica.com/images/brother-7820n-owners-manual.pdf If this error is detected during power-up self-test, the instrument will beep. This error is only readable from the remote interface.This error is only readable from the remote interface.This error is reported if the procedure can not run to completion due to a hardware failure.The gain test (606) is performed eight times.The data is then clocked back into A1U209 and compared against the original 9 bytes sent. A failure occurs if the data do not match.The dc amplifier gain is set to X1.The dc amplifier gain is set to X10.The dc amplifier gain is set to X100.The 5 ?A current source is connected. The compliance limit of the current source is measured.The 10 ?A current source is connected.The 100 ?A current source is connected. The compliance limit of the current source is measured.The 1 mA current source is connected.The 1 mA ohms current source is switched on the charge the ac input capacitor A4C301. This produces a pulse on the output of the rms-to-dc converter which is sampled 100 ms after the current is applied.This test immediately follows test 621. With A4C301 holding charge from test 621 the ac input is now switched to ground through A4K103. This produces a positive pulse on the input to the frequency comparator A4U310. While C301 discharges, the ENAB FREQ bit is toggled four times to produce a frequency input to the counter logic in A1U205. A failure occurs if the counter can not measure the frequency input.The ADC is configured for 200 ms measurements. The A1U205 pulse width modulated (PWM) DAC output (C224) is set to about 4 volts. A reading is taken in with A4U101 in the MC state. A second reading is taken in the PRE state. The precharge amplifier voltage offset is calculated. The A1U205 DAC output is set to about 1.5 volts and the precharge offset is measured again. The gain of the offset adjustment is calculated. This test assures a precharge amplifier offset is achievable.https://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1628ab5b30e8eb---Canon-mp250-manual-head-alignment.pdfIf no logic input is detected, the meter will assume a 50 Hz line operation for all future measurements.If this condition is detected at power-on self-test, the instrument will beep and the error annunciator will be on.It combinesRF multiplexersConnectionsMultiple banksRF multiplexersConnectionsMultiple banksIt combines. Page 2 The HP 34970A combines precision measurement capability with flexible signal connections for your production and development test systems. Three module slots are built into the rear of the instrument to accept any combination of data acquisition or switching modules. The combination of data logging and data acquisition features makes this instrument a versatile solution for your testing requirements now and in the future. Page 3 The Front Panel at a Glance Denotes a menu key. See the next page for details on menu operation. Page 4 The Front-Panel Menus at a Glance Several of the front-panel keys guide you through menus to configure various parameters of the instrument (see previous page). The following steps demonstrate the menu structure using the key. 1 Press the menu key. You are automatically guided to the first level of the menu. Rotate the knob to view the other choices on the first level of the menu. The menu will automatically timeout after about 20 seconds of inactivity. Page 5 Display Annunciators SCAN MON VIEW CONFIG ADRS RMT ERROR EXT ONCE MEM LAST MIN MAX SHIFT 4W OC Scan is in progress or enabled. Press and hold again to turn off. Monitor mode is enabled. Press again to turn off. Scanned readings, alarms, errors, or relay cycles are being viewed. Channel configuration is in progress on displayed channel. Measurement is in progress. Instrument is addressed to listen or talk over the remote interface. Instrument is in remote mode (remote interface).www.drussoarts.com/userfiles/files/carryall-2-parts-manual.pdf Page 7 HP BenchLink Data Logger Software at a Glance HP BenchLink Data Logger is a Windows-based application designed to make it easy to use the HP 34970A with your PC for gathering and analyzing measurements. Use the software to set up your test, acquire and archive measurement data, and perform real-time display and analysis of your incoming measurements. Use this module for those applications that require high-integrity contacts or quality connections of non-multiplexed signals. This module can switch 300 V, 1 A (50 W maximum switch power) to your device under test or to actuate external devices. Use this module to sense status and control external devices such as solenoids, power relays, and microwave switches. For greater flexibility, you can read digital inputs and the count on the totalizer during a scan. Page 11 In This Book Quick Start Chapter 1 helps you get familiar with a few of the instrument’s front-panel features. This chapter also shows how to install the HP BenchLink Data Logger software. Front-Panel Overview Chapter 2 introduces you to the front-panel menus and describes some of the instrument’s menu features. System Overview Chapter 3 gives an overview of a data acquisition system and describes how parts of a system work together. We have written the exercises in this chapter to prepare the instrument for use and help you get familiar with some of its front-panel operations. The front panel has several groups of keys to select various functions and operations. A few keys have a shifted function printed in blue below the key. To perform a shifted function, press (the SHIFT annunciator will turn on). Page 18 Chapter 1 Quick Start To Prepare the Instrument for Use 1 To Prepare the Instrument for Use 1 Check the list of supplied items. Verify that you have received the following items with your instrument. If anything is missing, contact your nearest Hewlett-Packard Sales Office. One power cord. This User’s Guide. One Service Guide.https://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1628ab5adc742d---canon-mp240-manual-troubleshooting.pdf One Quick Reference Guide. Certificate of Calibration (if you ordered the internal DMM). Page 19 Chapter 1 Quick Start Installing HP BenchLink Data Logger Software Installing HP BenchLink Data Logger Software If you ordered the HP 34970A with the internal DMM, then the HP BenchLink Data Logger software is included. The software is shipped on one CD-ROM, but includes a utility to build installation floppy disks. To install the software on your PC, you will need a minimum of 12 MB of free disk space. Page 20 Chapter 1 Quick Start Installing HP BenchLink Data Logger Software 1 Creating Installation Floppy Disks You have the option to create an installation on floppy disks from the CD-ROM installation utility. This utility is provided so that you can install HP BenchLink Data Logger on a computer that does not have a CD-ROM drive. Note: You will need a total of five (5) formatted floppy disks to create an installation. 1. Go to a computer that is equipped with a CD-ROM drive. 2. Page 21 Chapter 1 Quick Start To Connect Wiring to a Module To Connect Wiring to a Module 1 Remove the module cover. 2 Connect wiring to the screw terminals. 20 AWG Typical 6 mm 3 Route wiring through strain relief. 4 Replace the module cover. Cable Tie Wrap (optional) 5 Install the module into mainframe. In addition, alarm data is time stamped and stored in a separate non-volatile memory queue. 1 Set the time of day. Utility Use and to select the field to modify and turn the knob to change the value. Utility Use and the value. Page 24 Chapter 1 Quick Start To Configure a Channel for Scanning 1 To Configure a Channel for Scanning Any channel that can be “read” by the instrument can also be included in a scan. This includes readings on multiplexer channels, a read of a digital port, or a read of the count on a totalizer channel. Automated scanning is not allowed with the RF multiplexer, matrix, actuator, digital output, or voltage output (DAC) modules.https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1628ab5c65baac---Canon-mp25dv-user-manual.pdf 1 Select the channel to be added to the scan list. Page 25 Chapter 1 Quick Start To Configure a Channel for Scanning Note: Press to sequentially step through the scan list and take a measurement on each channel (readings are not stored in memory). This is an easy way to verify your wiring connections before initiating the scan. 3 Run the scan and store the readings in non-volatile memory. The instrument automatically scans the configured channels in consecutive order from slot 100 through slot 300 (the SCAN annunciator turns on). Page 26 Chapter 1 Quick Start To Copy a Channel Configuration 1 To Copy a Channel Configuration After configuring a channel to be included in the scan list, you can copy that same configuration to other channels in the instrument (including digital channels on the multifunction module). This feature makes it easy to configure several channels for the same measurement. Page 27 Chapter 1 Quick Start To Close a Channel To Close a Channel On the multiplexer and switch modules, you can close and open individual relays on the module. However, note that if you have already configured any multiplexer channels for scanning, you cannot independently close and open individual relays on that module. 1 Select the channel. Turn the knob until the desired channel is shown on the right side of front-panel display. For this example, select channel 213. 2 Close the selected channel. Page 28 Chapter 1 Quick Start If the Instrument Does Not Turn On 1 If the Instrument Does Not Turn On Use the following steps to help solve problems you might encounter when turning on the instrument. If you need more help, refer to the HP 34970A Service Guide for instructions on returning the instrument to Hewlett-Packard for service. 1 Verify that there is ac power to the instrument. First, verify that the power cord is firmly plugged into the power receptacle on the rear panel of the instrument.www.drpaullampl.com/userfiles/files/carryall-2-manual.pdf Page 29 Chapter 1 Quick Start If the Instrument Does Not Turn On 1 Remove the power cord. Remove the fuse-holder assembly from the rear panel. 2 Remove the line-voltage selector from the assembly. Fuse: 500 mAT (for all line voltages) HP Part Number: 2110-0458 3 Rotate the line-voltage selector until the correct voltage appears in the window. 4 Replace the fuse-holder assembly in the rear panel. Page 30 Chapter 1 Quick Start To Adjust the Carrying Handle 1 To Adjust the Carrying Handle To adjust the position, grasp the handle by the sides and pull outward. Then, rotate the handle to the desired position. Page 31 Chapter 1 Quick Start To Rack Mount the Instrument To Rack Mount the Instrument You can mount the instrument in a standard 19-inch rack cabinet using one of three optional kits available. Instructions and mounting hardware are included with each rack-mounting kit. Any HP System II instrument of the same size can be rack-mounted beside the HP 34970A. Note: Remove the carrying handle, and the front and rear rubber bumpers, before rack-mounting the instrument. Page 32 Chapter 1 Quick Start To Rack Mount the Instrument 1 To rack mount a single instrument, order adapter kit 5063-9240. To rack mount two instruments side-by-side, order lock-link kit 5061-9694 and flange kit 5063-9212. Be sure to use the support rails inside the rack cabinet. To install one or two instruments in a sliding support shelf, order shelf 5063-9255, and slide kit 1494-0015 (for a single instrument, also order filler panel 5002-3999). Page 33 2 2 Front-Panel Overview Page 34 Front-Panel Overview This chapter introduces you to the front-panel keys and menu operation. This chapter does not give a detailed description of every front-panel key or menu operation. It does, however, give you a good overview of the front-panel menu and many front-panel operations. See chapter 4 “Features and Functions,” starting on page 71, for a complete discussion of the instrument’s capabilities and operation. Page 35 Chapter 2 Front-Panel Overview Front-Panel Menu Reference Front-Panel Menu Reference This section gives an overview of the front-panel menus. The menus are designed to automatically guide you through all parameters required to configure a particular function or operation. The remainder of this chapter shows examples of using the front-panel menus. Set the channel-to-channel delay for scanning. Set the low frequency limit (ac measurements only). Page 37 Chapter 2 Front-Panel Overview To Monitor a Single Channel To Monitor a Single Channel You can use the Monitor function to continuously take readings on a single channel, even during a scan. This feature is useful for troubleshooting your system before a test or for watching an important signal. 1 Select the channel to be monitored. Only one channel can be monitored at a time but you can change the channel being monitored at any time by turning the knob. 2 Enable monitoring on the selected channel. Page 38 Chapter 2 Front-Panel Overview To Set a Scan Interval To Set a Scan Interval You can set the instrument’s internal timer to automatically scan at a specific interval (e.g., start a new scan sweep every 10 seconds) or when an external TTL trigger pulse is received. You can configure the instrument to scan continuously or to stop after sweeping through the scan list a specified number of times. 1 Select the interval scan mode. In addition to setting the gain (“M”) and offset (“B”) values, you can also specify a custom measurement label for your scaled readings (RPM, PSI, etc.). 1 Configure the channel. You must configure the channel (function, transducer type, etc.) before applying any scaling values. Page 40 Chapter 2 Front-Panel Overview To Configure Alarm Limits To Configure Alarm Limits The instrument has four alarms which you can configure to alert you when a reading exceeds specified limits on a channel during a scan. You can assign a high limit, a low limit, or both to any configured channel in the scan list. You can assign multiple channels to any of the four available alarms (numbered 1 through 4). 1 Configure the channel. You must configure the channel (function, transducer type, etc. Page 41 Chapter 2 Front-Panel Overview To Configure Alarm Limits 4 Set the limit value. The alarm limit values are stored in non-volatile memory for the specified channels. The default values for the high and low limits are “0”. The low limit must always be less than or equal to the high limit, even if you are using only one of the limits. You can read the live status of the bits on the port or you can configure a scan to include a digital read. 1 Select the Digital Input port. Select the slot containing the multifunction module and continue turning the knob until DIN is displayed (channel 01 or 02). Select the slot containing the multifunction module and continue turning the knob until DIN is displayed (channel 01 or 02). 2 Enter the bit pattern editor. Notice that the port is now converted to an output port (DOUT). Page 44 Chapter 2 Front-Panel Overview To Read the Totalizer Count To Read the Totalizer Count The multifunction module (HP 34907A) has a 26-bit totalizer which can count pulses at a 100 kHz rate. You can manually read the totalizer count or you can configure a scan to read the count. 1 Select the totalizer channel. Select the slot containing the multifunction module and continue turning the knob until TOTALIZE is displayed (channel 03). 2 Configure the totalize mode. Use the knob and or keys to edit the individual digits. Page 46 Chapter 2 Front-Panel Overview To Configure the Remote Interface To Configure the Remote Interface The instrument is shipped with both an HP-IB (IEEE-488) interface and an RS-232 interface. Only one interface can be enabled at a time. The HP-IB interface is selected when the instrument is shipped from the factory. HP-IB Configuration 1 Select the HP-IB interface. Interface You can set the instrument’s address to any value between 0 and 30. Page 47 Chapter 2 Front-Panel Overview To Configure the Remote Interface RS-232 Configuration 1 Select the RS-232 interface. 2 Interface 56 2 Select the baud rate. Interface Select one of the following: None (8 data bits, factory setting), Even (7 data bits), or Odd (7 data bits). Page 48 Chapter 2 Front-Panel Overview To Store the Instrument State To Store the Instrument State You can store the instrument state in one of five non-volatile storage locations. A sixth storage location automatically holds the power-down configuration of the instrument. When power is restored, the instrument can automatically return to its state before power-down (a scan in progress before power-down will also be resumed). 1 Select the storage location. Page 49 3 3 System Overview Page 50 System Overview This chapter provides an overview of a computer-based system and describes the parts of a data acquisition system. Page 52 Chapter 3 System Overview Data Acquisition System Overview Measurement Software A variety of software is available to configure your data acquisition hardware and manipulate and display your measurement data. The software is included with the HP 34970A when you order the internal DMM. These two sections are isolated from each other in order to maintain measurement accuracy and repeatability (for more information on ground loops, see page 341). Page 54 Chapter 3 System Overview Data Acquisition System Overview Plug-In Modules The HP 34970A offers a complete selection of plug-in modules to give you high-quality measurement, switching, and control capabilities. The plug-in modules communicate with the floating logic via the internal isolated digital bus. The multiplexer modules also connect to the internal DMM via the internal analog bus. Page 55 Chapter 3 System Overview Data Acquisition System Overview System Cabling The plug-in modules have screw-terminal connectors to make it easy to connect your system cabling. The type of cabling that you use to connect your signals, transducers, and sensors to the module is critical to measurement success. Some types of transducers, such as thermocouples, have very specific requirements for the type of cable that can be used to make connections. Page 56 Chapter 3 System Overview Data Acquisition System Overview Transducers and Sensors Transducers and sensors convert a physical quantity into an electrical quantity. The electrical quantity is measured and the result is then converted to engineering units. You can use the switching plug-in modules to route signals to and from your test system or multiplex signals to the internal DMM or external instruments. Relays are electromechanical devices which are subject to wear-out failure modes. Page 58 Chapter 3 System Overview Signal Routing and Switching Multiplexer Switching Multiplexers allow you to connect one of multiple channels to a common channel, one at a time. A simple 4-to-1 multiplexer is shown below. When you combine a multiplexer with a measurement device, like the internal DMM, you create a scanner. For more information on scanning, see page 62. Page 59 Chapter 3 System Overview Signal Routing and Switching Matrix Switching A matrix switch connects multiple inputs to multiple outputs and therefore offers more switching flexibility than a multiplexer. Use a matrix for switching low-frequency (less than 10 MHz) signals only. A matrix is arranged in rows and columns. For example, a simple 3x3 matrix could be used to connect three sources to three test points as shown below. Page 60 Chapter 3 System Overview Measurement Input Measurement Input The HP 34970A allows you to combine a DMM (either internal or external) with multiplexer channels to create a scan. During a scan, the instrument connects the DMM to the configured multiplexer channels one at a time and makes a measurement on each channel. Any channel that can be “read” by the instrument can also be included in a scan. If the input signal is a dc voltage, the signal conditioner is composed of an attenuator for the higher input voltages and a dc amplifier for the lower input voltages. Page 62 Chapter 3 System Overview Measurement Input Main Processor The main processor, located in the floating logic section, controls the input signal conditioning, ranging, and the ADC. The main processor accepts commands from, and sends measurement results to, the earth-referenced logic section. The main processor synchronizes measurements during scanning and control operations. The main processor uses a multi-tasking operating system to manage the various system resources and demands. You can also program a time delay between channels in the scan list. Page 64 Chapter 3 System Overview Measurement Input Scanning With External Instruments If your application doesn’t require the built-in measurement capabilities of the HP 34970A, you can order it without the internal DMM. In this configuration, you can use the HP 34970A for signal routing or control applications. If you install a multiplexer plug-in module, you can use the HP 34970A for scanning with an external instrument. You can connect an external instrument (such as a DMM) to the multiplexer COM terminal. Page 65 Chapter 3 System Overview Measurement Input The Multifunction Module The multifunction module (HP 34907A) adds two additional measurement input capabilities to the system: digital input and event totalize. The multifunction module also contains a dual voltage output (DAC) which is described in more detail on page 68. Page 66 Chapter 3 System Overview Measurement Input Totalizer The multifunction module has a 26-bit totalizer which can count pulses at a 100 kHz rate.