Keithley Integra 27 Series Quick Start Manual
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Keithley Integra 27 Series Quick Start Manual

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Model 27XX
Integra Series
Quick Start Guide
A G R E A T E R M E A S U R E O F C O N F I D E N C E

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Summary of Contents for Keithley Integra 27 Series

  • Page 1 Model 27XX Integra Series Quick Start Guide A G R E A T E R M E A S U R E O F C O N F I D E N C E...
  • Page 2 WARRANTY Keithley Instruments, Inc. warrants this product to be free from defects in material and workmanship for a period of 1 year from date of shipment. Keithley Instruments, Inc. warrants the following items for 90 days from the date of shipment: probes, cables, rechargeable batteries, diskettes, and documentation.
  • Page 4 Model 27XX Integra Series Quick Start Guide ©2003, Keithley Instruments, Inc. All rights reserved. Cleveland, Ohio, U.S.A. First Printing, May 2003 Document Number: 27XX-903-01 Rev. A...
  • Page 5 Revision A (Document Number 27XX-903-01) ............... May 2003 All Keithley product names are trademarks or registered trademarks of Keithley Instruments, Inc. Other brand names are trademarks or registered trademarks of their respective holders.
  • Page 6 Keithley products are designed for use with electrical signals that are rated Measurement Category I and Measurement Category II, as described in the International Electrotechnical Commission (IEC) Standard IEC 60664. Most measurement, control, and data I/O signals are Measurement Category I and must not be directly connected to mains voltage or to voltage sources with high transient over-voltages.
  • Page 7 To maintain protection from electric shock and fire, replacement components in mains circuits, including the power transformer, test leads, and input jacks, must be purchased from Keithley Instruments. Standard fuses, with applicable national safety ap- provals, may be used if the rating and type are the same. Other components that are not safety related may be purchased from other suppliers as long as they are equivalent to the original component.
  • Page 8 Quick Start Guide Integra Series...

  • Page 9: Table Of Contents

    Integra Series Quick Start Guide Topics Getting started – page 3 Math operations – page 25 Introduction – page 3 Relative (rel) – page 26 Measure and switching capabilities – page 3 Math Front and rear panels (mainframe) – page 5 mX+b –...

  • Page 10: Getting Started

    Details on the Model 7700 switching module is covered in the Model 27xx User’s Manual. Details on Model 7700 installation and connections are provided in the User’s Guide supplied with the switching module. Details on other Keithley switching modules are covered in the supplied User’s Guide. WARNING Exercise extreme caution when a shock hazard is present.
  • Page 11 Integra Series Quick Start Guide CAUTION The maximum input for the mainframe is 1000V peak. However, if a measure switch module (e.g., module 7700) is installed, the maximum allowable input voltage for the system (including the mainframe) is degraded to the maximum voltage rating of the card.

  • Page 12: Front And Rear Panels (Mainframe)

    For GPIB communication, connect to GPIB port of computer using an straight-through RS-232 cable (DB-9). Do not use a null modem cable. IEEE-488 cable (Keithley 7007). WARNING: NO INTERNAL OPERATOR SERVICABLE PARTS,SERVICE BY QUALIFIED PERSONNEL ONLY. DIGITAL I/O TRIG. LINK...
  • Page 13 FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,REPLACE FUSE WITH SAME TYPE AND RATING. Using the supplied line cord, connect to a grounded AC power outlet. Two slots for Keithley The line voltage setting shown in the window of the fuse holder must...
  • Page 14 For GPIB communication, connect straight-through RS-232 cable (DB-9). to GPIB port of computer using an Do not use a null modem cable. IEEE-488 cable (Keithley 7007). Window shows line voltage setting RS-232 DIGITAL I/O TRIG.

  • Page 15: Power-Up

    Integra Series Quick Start Guide Power-up NOTE For the following power-up procedure, refer to Figure 2 (Model 2700), Figure 3 (Model 2701), or Figure 4 (Model 2750). Check to see that the line voltage indicated in the window of the fuse holder assembly is correct for the operating voltage in your area.

  • Page 16: Factory Defaults

    Quick Start Guide Integra Series 9 Figure 5 Edit keys RATIO RATIO CONT OCOMP MATH O U T P U T MATH O U T P U T CH AVG CH AVG PERIOD SENSOR SHIFT FREQ TEMP RANGE MONITOR MONITOR DELAY DELAY HOLD...
  • Page 17 10 Integra Series Quick Start Guide Communication connections Use the information in Figure 2 (2700), Figure 3 (2701), or Figure 4 (2750) to con- nect the desired communications port of the instrument. WARNING Before making or breaking connections, turn off the instru- ment, disconnect the line cord, and disconnect any external cir- cuitry connected to the mainframe or switching modules.

  • Page 18: Start-Up Software

    Quick Start Guide Integra Series 11 Start-up software Models 2700, 2701, and 2750 – You can use the “Up & Running with TestPoint” software (supplied on CD) to perform the following: • Control and configure the Integra instrument • Scan, acquire, and graph the data •...

  • Page 19: Front Panel Input Connections

    12 Integra Series Quick Start Guide Front panel input connections NOTE Information on “Input connections and measurements” for the Model 7700 switching module is provided on page 35 of this guide. Front panel input connections are shown in Figure 6. Note that the Front/Rear INPUTS switch must be in the out (F) position in order to use the front panel inputs.
  • Page 20 Quick Start Guide Integra Series 13 Figure 6 Front panel input connections Front Panel Inputs: SENSE INPUT 4 WIRE Integra Series SENSE INPUT 4 WIRE 350V 1000V PEAK PEAK Front/Rear INPUTS switch 350V 1000V PEAK PEAK must be in the out (F) position Model 2700 Multimeter / Data Acquisition System 500V MATH O U T P U T...

  • Page 21: Basic Measurements

    14 Integra Series Quick Start Guide Basic measurements NOTE The following measurement procedures assume front panel input connections. “Input connections and measurements” for the Model 7700 switching module are covered on page Figure 7 shows the front panel controls used to select a measurement function and set the measurement range.
  • Page 22 Quick Start Guide Integra Series 15 Offset compensated (OCOMP) ohms measurements For more accurate low resistance measurements, all Integra systems provide the offset compensation mode to eliminate errors from the thermoelectric EMF effects. During the measurement cycle, the built-in ohms current source is turned off, and then turned on again, and the resulting EMF error is automatically sub- tracted.

  • Page 23: Measure Temperature

    16 Integra Series Quick Start Guide Remote programming example (2-wire ohms) INIT:CONT OFF ‘ Disables continuous initiation. TRIG:COUN 1 ‘ Sets trigger count to one. SENS:FUNC ‘RES’ ‘ Select 2-Wire Ohms function. READ? ‘ Triggers measurement and requests one reading. NOTE When finished with remote programming, press the LOCAL key to restore front panel control.
  • Page 24 For example, if using an ice bath, set the simulated temper- ature to 0°C (or 32°F or 273K). • Select INT if the thermocouple is connected to a Keithley switching module that has a cold junction, such as the Model 7700.

  • Page 25: Measure Frequency And Period

    18 Integra Series Quick Start Guide TRIG:COUN 1 ‘ Sets trigger count to one. SENS:FUNC ‘TEMP’ ‘ Select Frequency function. SENS:TEMP:TRAN THER ‘ Select thermistor transducer. SENS:TEMP:THER 5000 ‘ Select 5000 ohm thermistor. READ? ‘ Triggers measurement and requests one reading. NOTE When finished with remote programming, press the LOCAL key to restore front panel control.

  • Page 26: Testing Continuity

    Quick Start Guide Integra Series 19 Testing continuity The Model 27xx can test continuity using the 1kΩ range. Threshold can be set from 1 to 1000Ω. When the measured test circuit is below the set threshold level, the instrument will beep and display the resistance reading. When the measured level is above the threshold level, the message “OPEN”...

  • Page 27: Optimizing Performance

    20 Integra Series Quick Start Guide Optimizing performance Factors that affect measurement performance include instrument warm-up, display resolution, measurement speed, filter, line cycle synchronization and autozero. Figure 8 Measurement performance control Filter – Press to enable or disable. Type – Press SHIFT then FILTER (TYPE) to access filter configuration menu: Window –...

  • Page 28: Measurement Speed (Rate)

    Quick Start Guide Integra Series 21 SCPI programming commands (digits) For remote programming, each valid function can have it’s own unique setting: SENS:VOLT:DC:DIG <n> ‘ Set display resolution for DC Volts. SENS:VOLT:AC:DIG <n> ‘ Set display resolution for AC Volts. SENS:CURR:DC:DIG <n>...

  • Page 29: Filter

    22 Integra Series Quick Start Guide NOTE For AC functions, measurement bandwidth is affected by the mea- surement speed setting (see Model 27xx User’s Manual for details). SCPI programming commands (nplc) For remote programming, the :NPLC command is used to set measurement speed (rate).
  • Page 30 Quick Start Guide Integra Series 23 Filter type – There are two filter types: Moving average and repeating: • Moving filter – The moving average filter uses a “first-in, first-out” stack. When the stack becomes full, the readings are averaged to yield a single fil- tered reading that is displayed.

  • Page 31: Line Cycle Synchronization (Lsync)

    24 Integra Series Quick Start Guide 2-Wire Ohms SENS:RES:AVER:WIND <NRf> ‘ Set filter window in %: <NRf> = 0 to 10. SENS:RES:AVER:COUN <n> ‘ Set filter count: <n> = 1 to 100. SENS:RES:AVER:TCON <name> ‘ Select filter type: <name> = MOV or REP. SENS:RES:AVER:STAT <b>...

  • Page 32: Autozero

    Quick Start Guide Integra Series 25 Autozero To help maintain stability and accuracy over time and changes in temperature, the instrument periodically performs internal measurements. These autozero mea- surements are then used in the algorithm to accurately calculate the reading of the input signal.

  • Page 33: Relative (Rel)

    26 Integra Series Quick Start Guide Relative (rel) For all measurement functions, except Continuity, relative is used to null offsets or establish a baseline for future readings. When Rel is enabled, the displayed read- ing is determined as follows: Displayed Reading = Actual Input - Reference The reference value is established when the REL key is pressed (REL annuncia- tor on).

  • Page 34: Math Mx+B

    Quick Start Guide Integra Series 27 Temperature SENS:TEMP:REF <n> ‘ Specify rel value: <n> = -200 to 1820 (°C). SENS:TEMP:REF:STAT <b> ‘ Enable or disable rel: <b> = ON or OFF. SENS:TEMP:REF:ACQ ‘ Use input signal as rel value. Frequency SENS:FREQ:REF <n>...

  • Page 35: Percent

    28 Integra Series Quick Start Guide Percent This math operation determines percent deviation from a specified reference value, and is calculated as follows: Input – Reference Percent = ——––——----—–— x 100% Reference Where: Input is the normal display reading. Reference is the user entered constant. Percent is the displayed result.

  • Page 36: Ratio And Channel Average

    Quick Start Guide Integra Series 29 SCPI programming commands (math) CALC1:FORM <name> ‘ Select calculation: <name> = MXB, PERC, REC, or NONE. CALC1:STAT <b> ‘ Enable or disable math: <b> = ON or OFF. CALC1:DATA? ‘ Read result of selected calculation. mX +b CALC1:KMAT:MMF <NRf>...
  • Page 37 Ratio and channel average operation NOTE In order to perform the ratio or channel average operation, a Keithley switching module (e.g., Model 7700) must be installed in the main- frame, or a pseudocard must be assigned to an empty slot. Details to assign a 7700 “Pseudocard”...

  • Page 38: Buffer

    Quick Start Guide Integra Series 31 Remote programming example (ratio) Assume two DCV signals connected to channels 1 and 11 of a Model 7700 installed in slot 1 of the mainframe. INIT:CONT OFF ‘ Disables continuous initiation. TRIG:COUN 1 ‘ Sets trigger count to one. SENS:FUNC ‘VOLT:DC’...
  • Page 39 32 Integra Series Quick Start Guide NOTE Each stored reading is referenced to either a relative timestamp or to a real-time clock timestamp. The real-time clock timestamps each reading with the time and date. Details on the real-time clock times- tamp are provided in the Model 27xx User’s Manual (see Section 6).
  • Page 40 Quick Start Guide Integra Series 33 Remote programming example (buffer - store 100 DC volt readings) SYST:PRES ‘ Restores factory defaults. TRAC:CLE ‘ Clears the buffer. TRAC:TST:FORMABS ‘ Selects the absolute timestamp. TRAC:POIN 20 ‘ Sets buffer to store 20 readings. TRAC:FEED SENS ‘...

  • Page 41: Model 7700 Switching Module

    34 Integra Series Quick Start Guide Model 7700 switching module NOTE It is not necessary to connect input signals in order to exercise oper- ation of the Model 7700 switching module. If a switching module is not installed in the mainframe, you can use remote programming to assign a 7700 pseudocard to an empty mainframe slot.

  • Page 42: Input Connections And Measurements

    Quick Start Guide Integra Series 35 Input connections and measurements WARNING The following summary on Model 7700 input connections is for informational use only. It is only intended to show how a an input signal is connected and routed through the switching module to the mainframe DMM.

  • Page 43: 2-Wire Measurements

    36 Integra Series Quick Start Guide Figure 11 Model 7700 switching module CH10 2-wire measurements Figure 12A shows example 2-wire connections for all functions, except AMPS. Input channels 1 through 20 of the Model 7700 can be used for these measure- ments.
  • Page 44 Quick Start Guide Integra Series 37 For a 4-wire function, the input(s) is connected to an input channel and its corre- sponding sense channel. Input channels 1 through 10 are paired to channels 11 through 20. When an input channel is closed, its paired channel and the back- plane isolation relays (channels 24 and 25) also close.

  • Page 45: Channel Assignments

    38 Integra Series Quick Start Guide Figure 13 7700 switching module connections – 4-wire measurements Model 27xx Slot Model 7700 Switching Module Input Channel Terminal Block Channel 25 Input Relay 1 7700 paired-channels CH 1 for these measurements: Input Sense 4-Wire Backplane Chan 1...

  • Page 46: Closing And Opening Channels

    Quick Start Guide Integra Series 39 Figure 14 Close/open channels CONT CONT OCOMP OCOMP MATH O U T P U T MATH O U T P U T RATIO RATIO CH AVG CH AVG PERIOD SENSOR PERIOD SENSOR Ω2 Ω4 SHIFT FREQ TEMP...
  • Page 47 40 Integra Series Quick Start Guide key operates in a similar manner except it sequences input channels in a ß descending order. SCPI programming commands (close/open channels) NOTE Not all close/open commands are documented here. For details on all switching module commands, refer to the Model 27xx User’s Manual (see Section 2).

  • Page 48: Simple Scanning

    Quick Start Guide Integra Series 41 Simple scanning The Model 27xx can scan the channels of one or more installed switching mod- ules. When STEP or SCAN is pressed, all input channels in the scan list are scanned, measured and stored in the buffer. For front panel operation, options for a simple scan include the following: •...
  • Page 49 42 Integra Series Quick Start Guide Configuring a simple scan Referring to Figure 14, press SHIFT and then STEP (CONFIG) to access the scan configuration menu. Use the edit keys (see Figure 5) to select the SIMPLE scan. NOTE Other scan options: An ADVANCED scan allows each scan channel to have its own unique measurement configuration.
  • Page 50 Quick Start Guide Integra Series 43 NOTES: <clist> examples: (@101) slot 1, channel 1 (@101, 204) slot 1, channel 1 and slot 2 channel 4 (@101:110) slot 1, channels 1 through 10 IMM starts the scan immediately when triggered. Reading limits can instead be used to trigger the start of a scan.
  • Page 51 44 Integra Series Quick Start Guide...
  • Page 52 Specifications are subject to change without notice. All Keithley trademarks and trade names are the property of Keithley Instruments, Inc. All other trademarks and trade names are the property of their respective companies. Keithley Instruments, Inc. 28775 Aurora Road • Cleveland, Ohio 44139 • 440-248-0400 • Fax: 440-248-6168 1-888-KEITHLEY (534-8453) •...

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