The 1908 is a bench or rack mounting digital multimeter that is designed for serious use by professionals, and is at home in the laboratory, workshop or classroom, as well as in the field. The DMM has functions and features that have been chosen to provide real value and it will carry out a range of measurements, including AC and DC voltage, DC current and True rms AC current, resistance, frequency, capacitance, temperature, continuity and diode test. The unit has dual displays that can be used for either displaying the same measurement in different units or to measure two parameters simultaneously. A USB interface takes care of system connectivity and the multimeter can operate from mains power or internal rechargeable NiMH batteries.

• Dual measurement and dual display
• Wideband True rms AC measurement
• High accuracy and resolution
• Wide range of maths and data logger functions
• 120,000 Count display
• 2u Half-rack sizing with protective buffers
• PC and system connectivity
• External remote triggers
• Supplied with driver software

The 1908P is a bench or rack mounting digital multimeter that is designed for serious use by professionals, and is at home in the laboratory, workshop or classroom, as well as in the field. The DMM has functions and features that have been chosen to provide real value and it will carry out a range of measurements, including AC and DC voltage, DC current and True rms AC current, resistance, frequency, capacitance, temperature, continuity and diode test. The unit has dual displays that can be used for either displaying the same measurement in different units or to measure two parameters simultaneously. System interface is by either USB, RS232 or LAN interfaces, and the multimeter can operate from mains power or internal rechargeable NiMH batteries.

• Dual measurement and dual display
• Wideband True rms AC measurement
• High accuracy and resolution
• Wide range of maths and data logger functions
• 120,000 Count display
• 2u Half-rack sizing with protective buffers
• PC and system connectivity
• External remote triggers
• Supplied with driver software

The BS407 is an instrument which is fully optimised for the task of accurate measurement of low resistances with a best resolution of 1µOhm.Most multimeters offer a best resolution which is at least one thousand poorer than this. A very high resolution multimeter may attempt to resolve fairly low resistances, but it does so by resolving extremely low voltages (typically one Nano-volt per micro-ohm), making it subject to severe errors from thermal EMF effects and noise.

In contrast, the BS407 generates sufficient test voltage across the unknown resistance to combat noise and reduce thermal EMF effects to manageable levels. Current reversal can then be used to eliminate any remaining thermal offset.

The BS407 uses a four terminal measurement system via high quality Kelvin Clip leads (supplied). For speed and convenience front panel switches are provided for current diversion (allowing in-situ zero adjustment) and current reversal (for identifying thermal EMF errors). An LED indicator warns of open circuit leads thus preventing spurious results from being recorded.

• High basic accuracy of 0.1%
• Wide range of 1µ Ohm to 20kΩ
• Current reversal switch for detecting thermal EMF effects
• Current diversion switch for easy zeroing
• Four terminal measurement using Kelvin clip leads
• Battery operation with built-in charger
• 20mV clamp for dry circuit testing
• Manufacturers part no. Thurlby Thandar BS407

The GDM-8245 is an economical bench-top DMM equipped with a rich set of features. The GDM-8245 has similar functions to those of GDM-8246, but with slightly reduced DCV accuracy and no communication interface. The large 7 segment LED dual display features up to 50,000 counts and the ability to show two measurements at once: ACV plus frequency or dBm, DCV plus dBm or ACV ripple.

The GDM-8245 carries an extensive list of measurement items, DC voltage/current, AC voltage/current with true RMS, resistance, capacitance, frequency, continuity (with beeper), diode test, and dBm. Additional measurement functions, such as max/min hold, relative value, and compare, ease setup and diagnosis burdens. With great range, good accuracy and ability to accept up to 20A of current, the GDM-8245 is the perfect general purpose DMM.

• 50000 Counts Display
• Multi-Function ACV, DCV, ACA, DCA, R, C, Hz, Continuity Beeper, Diode Test, Max/Min, REL, Hold, dBm
• Dual Display Indicate ACV and Hz, or DCV(ACV) and dBm
• Manual or Auto Ranging
• ACV Measuring Frequency Up to 50kHz
• AC True RMS or AC + DC True RMS
• GW Instek Manufacturers part no. GW Instek GDM-8245

The GW Instek GDM-8255A is a 5½ digit dual-display digital multimeter. The GW Instek GDM-8255A features a DC voltage accuracy of 0.012% with an industry-leading response time. With robust hardware and software the GDM-825xA series will save time on debugging and analysis whilst saving you money.

The GW Instek GDM-8255A carries an extensive list of standard measurement items with a dual-display allowing two measurement items to be displayed simultaneously. Advanced measurement functions, such as max/min, hold, relative value and compare, are suitable for a multiplicity of applications such as production testing, research and field verification. The USB, RS-232C and 9-pin digital I/O interface of the GW Instek GDM-8255A are included as standard features for remote control and data capturing for ATE.

For convenient PC-based remote control and extensive data capture, the GW Instek GDM-8255A includes DMM viewer software at no additional cost. DMM viewer mimics the operation of the multimeters on the PC, allowing you to quickly use the software with little effort. Go on, treat yourself.

• GDM-8255A 199,999 counts display
• VFD Two colours display
• 0.012% DCV accuracy
• True RMS (AC, AC+DC)
• 9 Major measuring functions and 10 advanced measurement functions
• 2W/4W resistance measurement
• High voltage 1000V and 10A current range
• Standard interface: RS-232C, USB device, digital I/O
• Free PC software (DMM-VIEWER), LabVIEW driver
• GW Instek Manufacturers part no. GW Instek GDM-8255A

The GW Instek GDM-8341 CA is a Digital Bench Multimeter which has exceptional features. These include 50,000 counts, VFD dual-display, 0.02% basic DC voltage accuracy and a USB protocol connector to provide users with measurement precision, lucid data observation, and the convenience to connect to a PC.

The GDM-8341 CA not only supports the fundamental measurement items provided by general multimeters, but is also equipped with capacitance and temperature measurement functions. It provides many auxiliary functions to meet the measurement requirements for manufacturing process tests, educational experiments and testing facilities.

The multimeter has three selectable measurement speeds, fast, medium and slow. For instance, the DC voltage measurement can reach 40 readings per second on the fast mode, which can maximise the effectiveness of each measurement.

The multimeter provides twelve major measurement items including AC voltage/current, DC voltage/current, AC+DC voltage/current, two-wired resistance, capacitance, Frequency/ period, diode and continuity beeper test. Many auxiliary functions, such as maximum/minimum values, reading hold, relative values, dB, dBm, algorithms (MX+B, 1/X, Ref%) and comparison, are designed to reinforce the major measurement items to satisfy users' daily working requirements.

What's in the Box?GW Instek GDM-8341 CATest leads (1x red, 1x black)1x USB cable1x Power cordUser manual CDSafety instruction sheet

• 50,000 counts, VFD display
• Dual measurement display
• Selectable measurement speeds, the maximum: 40 readings/s for DCV
• Auto/manual ranging
• True RMS (AC, AC+DC) measurements
• 11x Different measurement functions
• Max./min., REL, MX+B, 1/X, Ref%, Compare, Hold, dB, dBm
• Standard USB device interface to connect with a computer
• Manufacturer's part: GW Instek GDM-8341 CA

The GW Instek GVT-417B AC Millivolt Meter is a compact analog AC millivoltmeter ideal for low level voltage measurements beyond ordinary multimeter capabilities; 300uV sensitivity is maintained over 100V full scale. The GW Instek GVT-417B provides dual channel measurement, simultaneously or separately. Voltage scale is separated into 12 ranges, instantly accessible by a large rotary selector. The wide measurement range (10Hz to 1MHz) and voltage (-70dB to +40dB) provide ample headroom for most applications.

• Full Scale Sensitivity
• Measurement Frequency: 10Hz to 1MHz
• Measurement Amplitude: -70dB to +40dB in 12 Ranges
• CE Approved
• Manufacturers part no. GW Instek GVT-417B

The Keithley 2001 is a 7½ Digit High Performance Digital Multimeter (DMM) for users whose applications demand exceptional resolution, accuracy, and sensitivity combined with high throughput. This 7½ digit multimeter not only delivers performance specifications usually associated with instruments that cost thousands more, but it also offers a broad range of functions not typically available from DMMs.

The resolution specifications of the 2001 are based on a 28-bit A/D converter that provides the resolution needed to discern smaller changes. This higher resolution also provides a greater dynamic range, making it possible to measure from 1µV to 20V on a single range, thus avoiding range-shift errors and delays.

The patented circuit design makes the 2001 AC measurements several times more accurate than competitive DMMs. The wide bandwidth of this multimeter allows for accurate measurements of high frequency AC signals, without the need for a special AC meter. The 2001 features TRMS AC, average AC, peak AC, AC+DC, and crest factor measurement capability for a wide variety of applications.

• True 7½ digit resolution
• Exceptional measurement integrity with high speed
• High speed functions and range changing
• Broad range of built-in measurement functions
• Multiple measurement display
• Built-in 10 channel scanner option
• GPIB interface
• Manufacturer's part: Keithley 2001

The Keithley 2002 is a 8½ Digit High Performance Multimeter for users whose applications demand exceptional resolution, accuracy, and sensitivity combined with high throughput. This 8½ digit multimeter not only delivers performance specifications usually associated with instruments that cost thousands more, but they also offer a broad range of functions not typically available from DMMs.

The resolution specifications of the 2002 are based on a 28-bit A/D converter that provides the resolution needed to discern smaller changes. This higher resolution also provides a greater dynamic range, making it possible to measure from 1μV to 20V on a single range, thus avoiding range-shift errors and delays.

The patented circuit design makes the 2002 AC measurements several times more accurate than competitive DMMs. The wide bandwidth of this multimeter allows for accurate measurements of high frequency AC signals without the need for a special AC meter. The 2002 features TRMS AC, average AC, peak AC, AC+DC, and crest factor measurement capability for a wide variety of applications.

• True 8½ digit resolution
• Exceptional measurement integrity with high speed
• High speed functions and range changing
• Broad range of built-in measurement functions
• Multiple measurement display
• Built-in 10 channel scanner option
• GPIB interface
• Manufacturer's part: Keithley 2002

The Keithley 2100 Series USB Multimeter combines high measurement basic accuracy (0.0038% ) with 6.5 digit resolution and a price often associated with 5½ -Digit DMMs.

This DMM features 11 measurement functions and 8 math functions to accommodate the most commonly-measured parameters.

All accessories, such as USB cable, probes, and software, are included with this broad purpose DMM.

With its unique combination of high precision and low total cost of ownership, the 2100 Series is an unbeatable value for R&D engineers, test engineers, scientists, and students making basic precision measurements, whether it's used as a benchtop DMM or in a system application.

The Model 2100 provides a wide number of measurement ranges and functions:

• DC voltage: 0.1V, 1V, 10V, 100V, and 1000V
• AC voltage: 0.1V, 1V, 10V, 100V, and 750V
• DC current: 10mA, 100mA, 1A, and 3A
• AC current: 1A and 3A
• Two- and four-wire resistance: 100Ω, 1kΩ, 10kΩ, 100kΩ, 1MΩ, 10MΩ, and 100MΩ
• Frequency: From 3Hz to 300kHz
• Period measurement
• Diode measurement
• Programmable A-D converter and filter settings for signal to noise optimisation

A Microsoft Excel Add-In utility is also included and provides quick data import into a standard Microsoft Excel spreadsheet, including selectable graphing, instrument settings, and number of data points collected.

Data can then be analysed through standard or optional Microsoft Excel functions, including graphical, statistical, and trend charting. A version supporting Microsoft Word is also included for direct data import into reports.

The Keithley 2110 Series 5½-Digit USB digital multimeter combines compelling pricing with comprehensive capabilities, superior measurement accuracy and high speed. Its dual-line display capability allows it to display two different measurements at once.

The meter has 0.012% basic DC voltage accuracy and 0.020% basic resistance accuracy up to the 100kΩ range. At 5½ digits, it delivers up to 200 readings/s via the USB remote interface. At the fast 4½-digit setting, it reads up to 50,000 readings/s and up to 30,000 readings/s into the buffer, making it ideal for speed critical production and monitoring applications.

The Model 2110 offers unbeatable value for production, R&D, test engineers, scientists and students making a wide variety of measurements in portable, bench and system applications.

• 15 measurement functions, including capacitance and thermocouple measurements
• DC voltage: 0.1V, 1V, 10V, 100V and 1000V
• AC voltage: 0.1V, 1V, 10V, 100V and 750V
• DC current: 10mA, 100mA, 1A, 3A and 10A
• AC current: 1A, 3A and 10A
• Two- and four-wire resistance: 100Ω, 1kΩ, 10kΩ, 100kΩ, 1MΩ, 10MΩ and 100MΩ
• Frequency: 10Hz to 300kHz
• Capacitance measurement: 1nF, 10nF, 100nF, 1μF, 10μF and 100μF
• Thermocouple measurement: J-, R-, S-, T-, E-, N-, B-, C- and K-type thermocouples
• Temperature (RTD and NTC Thermistor) measurements
• Diode measurement
• Continuity test
• Programmable A-D converter and filter settings for signal to noise optimization
• 7 mathematical operations can be performed on readings: percentage, average, min/max, NULL, limits, mX+b, dB, and dBm testing
• Dual-line display allows 2 measurements to be shown concurrently
• Includes PC software utilities for both Microsoft® Word and Excel
• Includes start-up software, USB cable, power cable, safety test leads and three year standard manufacturer's warranty
• Keithley model 2110

This 5½-digit dual-display digital multimeter from Keithley offers a comprehensive set of capabilities, superior measurement accuracy, and high speed for a broad range of applications.

With 15 measurement functions and 7 maths functions and dual-line display capability, the 2110-240 can display two different measurements concurrently and is ideal for use by production, R&D and test engineers, scientists and students making a wide variety of measurements in portable, bench, and system applications.

At 5½ digits, this multimeter delivers up to 200 readings/s via the USB remote interface. At the fast 4½-digit setting, it reads up to 50,000 readings/s and up to 30,000 readings/s into the buffer, making it ideal for any application in which speed is critical.

• High accuracy, high speed for general purpose measurements
• 15 measurement functions including capacitance and thermocouple measurements
• Dual-line display allows concurrent measurements
• TMC-compliant US B 2.0 interface for use with SCPI test commands
• GPIB option for use in system applications
• Includes PC software utilities for graphing and data sharing in both Microsoft® Word and Excel
• Rugged construction for durability in bench/portable applications
• Includes accessories such as start-up software, USB cable, power cable, and safety test leads
• Dimensions 305 x 252.8 x 107mm
• Manufacturer's part 2110-240

The Keithley 2182A/E is a Two-Channel Nanovoltmeter that has been optimised for making stable, low noise voltage measurements and for characterising low resistance materials and devices reliably and repeatably. The 2182A/E provides a higher measurement speed and significantly better noise performance than alternative low voltage measurement solutions.

The 2182A/E represents the next step forward in Keithley nanovoltmeter technology offering enhanced capabilities including pulse capability, lower measurement noise, faster current reversals, and a simplified delta mode for making resistance measurements in combination with a reversing current source.

The 2182A/E makes it easy to choose the best speed/filter combination for a particular application's response time and noise level requirements. The ability to select from a wide range of response times allows optimising speed/noise trade-offs.

• Make low noise measurements at high speeds
• Delta mode coordinates measurements with a reversing current source at up to 24Hz with 30nV p-p noise for one reading
• Synchronization to line provides 110dB NMRR and minimizes the effect of AC common-mode currents
• Dual channels support measuring voltage, temperature, or the ratio of an unknown resistance to a reference resistor
• Built-in thermocouple linearisation and cold junction compensation
• Manufacturer's part: Keithley 2182A/E

The Keithley 2750/E is a Digital Multimeter from the Integra Series. The 2750/E can combine DC Power Supply, precision measurement, switching, and control in a single, tightly integrated enclosure for either rack mounted or bench top applications.

This cost-effective, high performance test platform offers an affordable alternative to separate digital multimeters and switch systems, dataloggers/recorders, plug-in card data acquisition equipment, and VXI/PXI systems.

The Integra Series plug-in switching and control modules offer unmatched flexibility and testing efficiency for a wide range of industries and applications. System builders can create test solutions with a combination of channel count, cost per channel, and system performance unmatched by any other single box measurement system.

The available input modules provide the flexibility to vary the channel count from 20 to 200 (2-pole), apply a stimulus to the device under test, route signals, control system components, and make precision measurements with up to 14 functions.

• Combines functions of DMM, switch system, and datalogger
• True 6½-digit (22-bit) resolution
• Choice of 12 switch/control plug-in modules
• Up to 200 differential input channels (with 300V isolation) for measurement and control
• Convenient front panel inputs
• Free LabVIEW™, LabWindows/CVI, Visual Basic, C/C++, and TestPoint™ drivers (IVI style)
• Ethernet, RS-232 communications capabilities
• Free ExceLINX™ 1A datalogging software
• Manufacturer's part: Keithley 2750/E

The Keithley 3706A is a High Performance Digital Multimeter (DMM) and contains six slots for plug-in cards in a compact 2U high (89mm) enclosure. The multimeter easily accommodates the needs of medium to high channel count applications. When fully loaded, a mainframe can support up to 576 two-wire multiplexer channels for unrivalled density and economical per channel costs.

The high performance multimeter provides a tightly integrated switch and measurement system that meets the demanding application requirements in a functional test system or provides the flexibility needed in stand-alone data acquisition and measurement applications.

• Six slot system switch mainframe with optional high performance
• Multi-processor architecture optimised for high throughput applications
• Remote PC control via Ethernet, USB, and GPIB interfaces
• Up to 576 two-wire or 720 one wire multiplexer channels in one mainframe
• Up to 2,688 one-pole matrix cross points in one mainframe
• Embedded Test Script Processor (TSP®) offering unparalleled system automation
• TSP-Link® master/slave connection provides easy system expansion
• Seamless connection to Series 2600 SourceMeter® instruments
• Capable of over 14,000 readings per second to memory with optional high performance multimeter
• LXI Class B with embedded Web browser interface for test setup, maintenance, and basic application control
• Manufacturer's part: Keithley 3706A

The Keithley 3706A-S is a six slot system switch mainframe.

This mainframe unit contains six slots for plug-in cards in a compact 2U high enclosure that easily accommodates the needs of medium to high channel count applications.

When fully loaded, a mainframe can support up to 576 two-wire multiplexer channels or 2,688 one-pole matrix crosspoints for unrivalled density and economical per channel costs.

Included with the 3706A-S six slot system switch

• Test script builder
• Software suite CD
• Ethernet crossover cable (CA-180-3A)
• Series 3700A product CD (includes LabVIEW®, IVI C and IVI.COM drivers)

The Keithley 6221/2182A/E is a Digital Multimeter complete with Delta Mode System Nanovoltmeter and all necessary cables. The 6221 combines ease of use with exceptionally low current noise. It is ideal for applications in test environments ranging from R&D to production, especially in the semiconductor, nanotechnology, and superconductor industries.

The 6221 is the only low current AC source on the market. Before its introduction, researchers and engineers were forced to build their own AC current sources.

The multimeter is fully programmable via the front panel controls or from an external controller via RS-232 or GPIB interfaces; the 6221 also features an Ethernet interface for remote control from anywhere there's an Ethernet connection. The multimeter can source DC currents from 100fA to 105mA, and source AC currents from 4pA to 210mA peak to peak. The output voltage compliance of either source can be set from 0.1V to 105V in 10mV steps.

The 6221 offers tools for defining current ramps and stepping through predefined sequences of up to 65,536 output values using a trigger or a timer. The 6221 also supports linear, logarithmic, and custom sweeps.

• Source and sink (programmable load) 100fA to 100mA
• 1014W output impedance ensures stable current sourcing into variable loads
• 65000-point source memory allows executing comprehensive test current sweeps directly from the current source
• Built-in RS -232, GPIB, Trigger Link, and digital I/O interfaces
• Reconfigurable triax output simplifies matching the application's guarding requirements
• Source AC currents from 4pA to 210mA peak to peak for AC characterization of components and materials
• 10MHz output update rate generates smooth sine waves up to 100kHz
• Built-in standard and arbitrary waveform generators with 1mHz to 100kHz frequency range
• Programmable pulse widths as short as 5μs, limiting power dissipation in delicate components
• Built-in Ethernet interface for easy remote control without a GPIB controller card
• Manufacturer's part: Keithley 6221/2182A/E

The Keithley 6221 is a Digital Multimeter (AC and DC Current Source) that combines ease of use with exceptionally low current noise. It is ideal for applications in test environments ranging from R&D to production, especially in the semiconductor, nanotechnology, and superconductor industries.

The 6221 is the only low current AC source on the market. Before its introduction, researchers and engineers were forced to build their own AC current sources.

The multimeter is fully programmable via the front panel controls or from an external controller via RS-232 or GPIB interfaces; the 6221 also features an Ethernet interface for remote control from anywhere there's an Ethernet connection. The multimeter can source DC currents from 100fA to 105mA, and source AC currents from 4pA to 210mA peak to peak. The output voltage compliance of either source can be set from 0.1V to 105V in 10mV steps.

The 6221 offers tools for defining current ramps and stepping through predefined sequences of up to 65,536 output values using a trigger or a timer. The 6221 also supports linear, logarithmic, and custom sweeps.

• Source and sink (programmable load) 100fA to 100mA
• 1014W output impedance ensures stable current sourcing into variable loads
• 65000-point source memory allows executing comprehensive test current sweeps directly from the current source
• Built-in RS -232, GPIB, Trigger Link, and digital I/O interfaces
• Reconfigurable triax output simplifies matching the application's guarding requirements
• Source AC currents from 4pA to 210mA peak to peak for AC characterization of components and materials
• 10MHz output update rate generates smooth sine waves up to 100kHz
• Built-in standard and arbitrary waveform generators with 1mHz to 100kHz frequency range
• Programmable pulse widths as short as 5μs, limiting power dissipation in delicate components
• Built-in Ethernet interface for easy remote control without a GPIB controller card
• Available: Keithley 6221/2182A complete with Delta Mode System, AC and DC Current Source, Nanovoltmeter, and all necessary cablesManufacturer's part: Keithley 6221

The Keithley 6485 is a 5½ Digit Digital Multimeter (DMM) that combines current measurement instrumentation with enhanced speed and a robust design.

The 6485 has eight current measurement ranges and high speed autoranging. This cost effective instrument can measure currents from 20fA to 20mA, taking measurements at speeds up to 1000 readings per second.

The multimeter has a 10fA resolution and superior sensitivity, making it well suited for characterising low current phenomena, while its 20mA range lets it measure currents high enough for applications such as 4 to 20mA sensor loops.

Although it employs the latest current measurement technology, it is significantly less expensive than other instruments that perform similar functions, such as optical power meters or competitive picoammeters. With a price that is comparable to a general purpose DMM, the 6485 makes picoamp level measurements affordable for virtually any laboratory or production floor.

• Cost-effective low current measurement solution
• 10fA resolution
• 5½ digit resolution
• <200μV burden voltage
• Up to 1000 readings/second
• Built-in Model 485 emulation mode
• IEEE-488 and RS -232 interfaces
• Analogue output
• Manufacturer's part: Keithley 6485

The Keithley 6487/E is a 5½ Digit Digital Multimeter (DMM) Voltage Source Meter. The meter improves on the measurement capability of previous models with a 500V source voltage. It provides higher accuracy and faster rise times than the 6485, as well as a damping function for use with capacitive devices.

With eight current measurement ranges and high speed autoranging, this cost effective instrument can measure currents from 20fA to 20mA, take measurements at speeds up to 1000 readings per second, and source voltage from 200μV to 505V.

The 6487 has a 10fA resolution, superior sensitivity, voltage sweeping, and Alternating Voltage resistance measurements making it well suited for characterizing low current devices.

• 10fA resolution
• 5½-digit resolution
• <200μV burden voltage
• Alternating Voltage method ohms measurements
• Automated voltage sweeps for I-V characterization
• Floating measurements up to 500V
• Up to 1000 readings/second
• Built-in Model 486 and 487 emulation mode
• IEEE-488 and RS -232 interfaces
• Analogue output
• Digital I/O
• Manufacturer's part: Keithley 6487

The Keithley 6514/E Digital Multimeter/ Electrometer combines flexible interfacing capabilities with current sensitivity, charge measurement capabilities, resolution, and speed that are equal or superior to other electrometers.

The 6514/E has built-in IEEE-488, RS-232, and digital I/O interfaces making it simple to configure fully automated, high speed systems for low-level testing.

The 5½-digit 6514/E is designed for applications that demand fast, yet precise measurements of low currents, voltages from high resistance sources, charges, or high resistances.

The Electrometer has exceptional measurement performance and comes at an affordable price. While its cost is comparable with that of many high end DMMs, the 6514/E offers far greater current sensitivity and significantly lower voltage burden (as low as 20µV) than other instruments can provide.

• <1fA noise
• >200TW input impedance on voltage measurements
• Charge measurements from 10fC to 20µC
• High speed, up to 1200 readings/second
• Interfaces readily with switches, computers, and component handlers
• Cancels voltage and current offsets easily
• Manufacturer's part: Keithley 6514/E

The Keithley 6517B/E is a 5½-Digit Digital Multimeter DMM that offers accuracy and sensitivity specifications unmatched by any other meter of this type. It also offers a variety of features that simplifies measuring high resistances and the resistivity of insulating materials. With reading rates of up to 425 readings/ second, the 6517B is also significantly faster than competitive electrometers, so it offers a quick, easy way to measure low-level currents.

Its internal battery backed memory buffer can store up to 50,000 readings, allowing users to log test results for longer periods and to store more data associated with those readings. This model also provides fast reading rates to the internal buffer (up to 425 readings/second) and to external memory via the IEEE bus (up to 400 readings/second). Several connector modifications have been incorporated to address modern connectivity and safety requirements.

• 1fA to 20mA current measurement range
• <20µV burden voltage on lowest current ranges
• 200TΩ input impedance
• <3fA bias current
• Up to 425 rdgs/s
• 0.75fA p-p noise
• Built-in ±1kV voltage source
• Unique voltage reversal method for high resistance measurements
• Optional plug-in scanner cards
• Manufacturer's part: Keithley 6517B/E

The Keithley DMM6500 is a modern bench/system DMM delivering more measurement functionality, best-in-class measurement insight, and a price that won't break your budget.

The most recognizable feature of the DMM6500 is the large 127mm (5in.) capacitive touch screen display that makes it easy to observe, interact with, and explore measurements with 'pinch and zoom' simplicity.

Beyond its display technology, the DMM 6500 superior analog measurement performance delivers 25 PPM basic DCV accuracy for one year and 30 PPM for two years, potentially allowing you to extend your calibration cycles.

The DMM6500 is equipped with all the measurement functions you would expect in a bench multimeter, so there's no need to buy additional measurement capabilities. Its 15 measurement functions, including capacitance, temperature (RTD, thermistor, and thermocouple), diode test with variable current sources, and up to 1 MS/sec digitising are now included.

The digitising function can be used for voltage or current and is especially useful in capturing transient anomalies or to help profile power events such as the operating states of today's battery operated devices. Current and voltage can be digitised with a programmable 1 MS/sec 16-bit digitizer, making it possible to acquire waveforms without the need for a separate instrument.

• 15 measurement functions including capacitance, temperature, and digitising
• Expanded measurement ranges include 10pA to 10A and 1μΩ to 100MΩ
• Large 127mm (5in.) multi-touch capacitive touchscreen with graphical display
• Large internal memory; store up to 7 million readings
• Multiple language modes: SCPI, TSP® scripting, Keithley 2000 SCPI emulation, Keysight 34401A SCPI emulation
• Two-year specifications allow for longer calibration cycles
• Standard USB-TMC and LXI/Ethernet communication interfaces
• Optional user-installable communication interfaces including: GPIB, TSP-Link®, and RS-232
• Capture voltage or current transients with 1MS/sec digitizer
• USB host port for storing readings, instrument configurations, and screen images
• Three-year warranty
• Keithley type DMM6500

The Keithley Instruments Model DMM7510 is a high accuracy 7½ digit graphical sampling multimeter that expands standard DMM functions to include high-speed digitizing and a large graphical colour touch-screen display.

The DMM offers a wide range of measurement capabilities, including 17 measurement functions. In addition to industry-leading DC accuracies, functions such as capacitance, 10A current, and 18-bit current and voltage digitizing are included.

Tying all these features together is the large 5-inch colour touchscreen display that brings users an unprecedented combination of data visualization and interaction, enabling users to gain deeper insight into their measurements.

The DMM7510 provides superior measurement accuracy and the speed necessary for a wide range of applications, from system applications and production testing to bench-top applications. It meets the requirements for production engineers, research and development engineers, test engineers, and scientists.

Functions include:

• DC voltage
• AC voltage
• Temperature
• Continuity
• DCV ratio
• DC current
• AC current
• Frequency
• Capacitance
• Resistance (2 terminal)
• Resistance ( 4 terminal)
• Period
• Diode test
• Digitize voltage
• Digitise current
• Keithley type DMM7510

This digital multimeter from Rigol is a digital multimeter designed with 5½ digits readings resolution and dual-display, especially fitting to the needs of high-precision, multifunction and automatic measurement. Ideal for research and development laboratories, scientific research and education, detection and maintenance, quality test and automatic production test. The easy to use design offers a 256 x 64 LCD, supports double display (English and Chinese menu), built-in help system makes information acquisition more easier and file management (support for U-disc and local storage).

• Real 5½ digits readings resolution
• Up to 123 rdgs/s measurement speed
• True-RMS AC Voltage and AC Current measuring
• Quickly save or recall the 10 groups of preset configuration
• Preset 10 groups of standard sensor configuration, built-in cold terminal compensation for thermocouple
• Clone the instrument configurations into other DM3058/DM3058E via USB storage device
• The first 5½ digit digital multimeter passing LXI Criterion in industry - can achieve system integration easily
• With easy, convenient and flexible any sensor measurement control software: UltraSensor
• Standard configuration interface: USB device and USB host
• Support remote control via commands and compatible with commands of main stream multimeters
• Manufacturer's part DM3058E

This high quality bench digital multimeter is the ideal solution for use in the classroom, laboratory, workshop, and anywhere where precise and accurate electrical measurements are required.

The multimeter can measure True rms values for AC voltage and current, as well as DC voltage and current, resistance, continuity, frequency, capacitance, diode test and temperature. CAT 1 1000V and CAT II 600V compliance also assures your safety when measuring high values.

The unit has a 4 1/2 digit, 55,000 count TFT LCD display with a 480 x 320 high resolution, making the display easy to read. Additional features include: RS 232 interface, and data record function.

• Full accuracy from 0°C to +50°C
• SCPI Support
• RS232 Interface
• Data record function
• Foot stand
• CAT 1 1000V and CAT II 600V
• Factory calibration ensures accurate readings
• Conforms to EN 61010-1:2010 and low voltage instructions (2006/95/EC)
• Supplied with power lead, test leads, crocodile clips, spare fuse, user manual
• Voltcraft VC-7055BT

This high quality bench digital multimeter is the ideal solution for use in the classroom, laboratory, workshop, and anywhere where precise and accurate electrical measurements are required.

The multimeter can measure True rms values for AC voltage and current, as well as DC voltage and current, resistance, continuity, frequency, capacitance, diode test and temperature. CAT 1 1000V and CAT II 600V compliance also assures your safety when measuring high values.

The unit has a 4 1/2 digit, 60,000 count TFT LCD display with a 480 x 320 high resolution, making the display easy to read. Additional features include: USB interface, RS 232 interface, and data record function.

• Full accuracy from 0°C to +50°C
• SCPI Support
• USB Interface
• RS232 Interface
• Data record function
• Foot stand
• CAT 1 1000V and CAT II 600V
• Factory calibration ensures accurate readings
• Conforms to EN 61010-1:2010 and low voltage instructions (2006/95/EC)
• Supplied with power lead, test leads, crocodile clips, USB cable, spare fuse, user manual
• Voltcraft VC-7060BT

This high quality bench digital multimeter is the ideal solution for use in the classroom, laboratory, workshop, and anywhere where precise and accurate electrical measurements are required.

The multimeter can measure True rms values for AC voltage and current, as well as DC voltage and current, resistance, continuity, frequency, capacitance, diode test and temperature. CAT 1 1000V and CAT II 600V compliance also assures your safety when measuring high values.

The unit has a 5 1/2 digit, 200,000 count TFT LCD display with a 480 x 320 high resolution, making the display easy to read. Additional features include: USB interface, RS 232 interface, and data record function.

• Full accuracy from 0°C to +50°C
• SCPI Support
• USB Interface
• RS232 Interface
• Data record function
• Foot stand
• CAT 1 1000V and CAT II 600V
• Factory calibration ensures accurate readings
• Conforms to EN 61010-1:2010 and low voltage instructions (2006/95/EC)
• Supplied with power lead, test leads, crocodile clips, USB cable, spare fuse, user manual
• Voltcraft VC-7200BT