Keithley 6517B Handleiding


Lees hieronder de 📖 handleiding in het Nederlandse voor Keithley 6517B (6 pagina's) in de categorie Multimeter. Deze handleiding was nuttig voor 48 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld

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A Tektronix Company
LOW LEVEL MEASURE & SOURCE
• Measures resistances up to 1018Ω
• 10aA (10×10–18A) current
measurement resolution
• <3fA input bias current
• 6½-digit high accuracy
measurement mode
• <20µV burden voltage on the
lowest current ranges
• Voltage measurements up to 200V
with >200TΩ input impedance
• Built-in ±1000V voltage source
• Unique alternating polarity voltage
sourcing and measurement
method for high resistance
measurements
• Built-in test sequences for four
different device characterization
tests, surface and volume
resistivity, surface insulation
resistance, and voltage sweeping
• Optional plug-in scanner cards for
testing up to 10 devices or material
samples with one test setup
APPLICATIONS
• Polymer electrical characterization
• Beam measurements
• Dosimetry
• Device leakage current
measurements
• Insulation resistance
measurements
• Optoelectronic detector
characterization
• Volume and surface resistivity
• Nanomaterial characterization
The Keithley 6517B Electrometer/High Resistance Meter is
the worldwide research laboratory standard for sensitive
measurements. With over 60 years of low level measurement
expertise, Keithley electrometers provide reliable measure-
ments of current levels down to 10aA (10×10
–18A,) charge
levels down to 1fC, and the highest resistance measurements
available up to 10
18Ω. The 6517B is also capable of meas-
uring the largest voltage range—up to 200V—with an input
impedance exceeding 200TΩ.
Exceptional Performance Specifications
The 6517B has incorporated Keithley’s decades of expertise
in low level measurement technology into an innovative, low
current input amplifier with an input bias current of <3fA,
just 0.75fAp-p noise, and <20µA burden voltage on the low-
est current ranges. The voltage circuit input impedance is greater than 200TΩ for near-ideal circuit
loading. These specifications ensure the accuracy and sensitivity needed for accurate low current and
high imped ance volt age, resistance, and charge measure ments in areas of re search such as physics,
optics, nanotechnology, and materials science. A built-in ±1kV voltage source with sweep capability
simplifies performing leak age, break down, and resis tance testing, as well as volume (Ω-cm) and sur-
face resistivity (Ω/square) mea sure ments on insulating materials.
Wide Measurement Ranges
The 6517B offers autoranging over the full span of ranges on current, resistance, voltage, and charge
measurements. The 6517B combines the following measurement capabilities:
• Ultra-sensitive ammeter with current measurement from 10aA to 20mA
• Highest impedance voltmeter with voltage measurement from 1µV to 200V
• Ultra-high range ohmmeter with resistance measurement from 1 to 10Ω18Ω
• Sensitive coulombmeter with charge measurement from 1fC to 2µC
Improved High Resistivity Measurements
Many test applications require measuring high levels of resistivity (surface or volume) of materials.
The conventional method of making these measurements is to apply a sufficiently large voltage to
a sample, measure the current that flows through the sample, then calculate the resistance using
Ohm’s Law (R=V/I.) While high resistance materials and devices produce very small currents that are
difficult to measure accurately, Keithley electrometers and picoammeters are used successfully for
such measurements.
Even with high quality instrumentation, inherent background currents in the material can make
these measurements difficult to perform accurately. Insulating materials, polymers, and plastics typ-
ically exhibit background currents due to piezoelectric effects, capacitive elements charged by static
electricity, and polarization effects. These background currents are often equal to or greater than
the current stimulated by the applied voltage. In these cases, the result is often unstable, providing
inaccurate resistance or resistivity readings or even erroneous negative values. Keithley’s 6517B is
designed to solve these problems and provides consistent, repeatable, and accurate measurements
for a wide variety of materials and components, especially when used in combination with the 8009
Resistivity Test Fixture.
Alternating Polarity Method for High Resistance Measurements
The 6517B uses the Alternating Polarity Method, which virtually eliminates the effect of any back-
ground currents in the sample. First and second order drifts of the background currents are also can-
celed out. The Alternating Polarity Method applies a voltage of positive polarity, then the current is
measured after a specified delay (Measure Time). Next, the polarity is reversed and the current meas-
ured again, using the same delay. This process is repeated continuously, and the resistance is calculat-
ed based on a weighted average of the four most recent current measurements. This method typically
produces a highly repeatable, accurate measurement of resistance (or resistivity) by the seventh rever-
6517B
Electrometer/High Resistance Meter
6517B Electrometer/High Resistance Meter
Test Equipment Depot - 800.517.8 - 99 Washington Street Melrose, - TestEquipmentDepot.com431 MA 02176
A Tektronix Company
LOW LEVEL MEASURE & SOURCE
6517B
Electrometer/High Resistance Meter
sal on most materials (i.e., by discarding the first three readings.) For example, a 1mm-thick sample
of 1014Ω-cm material can be measured with 0.3% repeatability in the 8009 Test Fixture, provided the
background current changes less than 200fA over a 15-second period.
Simple DMM-like Operation
The 6517B is designed for easy, DMM-like operation via the front panel, with single-button control of
im por tant functions such as resistance measurement. Also, all the functions of the 6517B can be pro-
grammed through either the RS-232 interface or the GPIB (IEEE-488) interface.
High Accuracy High Resistance Measurements
The 6517B offers a number of features and capabili ties that help ensure the accuracy of high
resistance mea sure ment applications. For example, the built-in volt age source simplifies determining
the relation ship between an insulator’s resistivity and the level of source voltage used. It is well-
suit ed for capacitor leakage and insulation resistance mea sure ments, tests of the surface insulation
resis tance of printed circuit boards, voltage coefficient test ing of resistors, and diode leakage
characterization.
Temperature and Humidity Stamping
Humidity and temperature can influence the resist ivity values of materials significantly. To help you
make ac curate comparisons of readings acquired un der varying conditions, the 6517B offers a built-
in type K thermo couple and an optional 6517-RH Relative Humidity Probe. A built-in 50,000 reading
data storage buffer allows recording and recalling measurements stamped with the time of the meas-
urement, the temperature, and the relative humidity.
Ordering Information
6517B Electrometer/High
Resistance Meter
Accessories Supplied
237-ALG-2 Low Noise Triax Cable,
3-slot Triax to Alligator Clips,
2m (6.6 ft)
8607 Safety High Voltage
Dual Test Leads
6517-TP Thermocouple Bead Probe
CS-1305 Interlock Connector
+1
0
Current (pA)
Current
Stored Current
Measurement
Sample’s
Background Current
Voltage Source
–1
+V
0
–V
The alternating voltage source polarity method eliminates the effects of background currents
in materials for making repeatable, accurate high resistance and resistivity measurements.
6517B Electrometer/High Resistance Meter
A Tektronix Company
LOW LEVEL MEASURE & SOURCE
6517B Electrometer/High Resistance Meter
Internal Test Sequences Expand
and Simplify Applications
The 6517B has a number of internal test
sequences that assists in easily setting up and
performing a number of tests. Device char-
acterization sequences include diode leakage
current measurement, capacitor leakage current
measurement, cable insulation resistance meas-
urement, and resistor voltage coefficient meas-
urement. Resistivity and resistance tests include
volume resistivity, surface resistivity, and surface
insulation resistance testing. Parameters can be
characterized as a function of voltage with the
square wave and staircase test sequences.
In addition to its built-in tests, the 6517B excels
in low current, high impedance voltage, resist-
ance, and charge measurements in areas of
research such as physics, optics, and materials
science. The electrometer’s extremely low volt-
age burden makes it particularly valuable for use
in solar cell characterization applications and its built-in voltage source and low current sensitivity
make it an excellent solution for high resistance measurements of nanomaterials such as poly-
mer-based nanowires, other nanomaterials, ceramics, dielectric films, and biomaterials.
With its highly responsive measurements and DMM-like operation, the 6517B performs well in quality
control, design engineering, and production test applications involving leakage current, breakdown,
and resistance testing. Volume and surface resistivity measurements on non-conductive materials are
particularly enhanced by the 6517B’s voltage reversal method. The 6517B is also excellent for elec-
trochemistry applications such as high impedance, ion-selective electrodes and pH measurements,
conductivity cells, and potentiometry.
ACCESSORIES AVAILABLE
CABLES
6517B-ILC-3 Interlock Cable
7007-1 Shielded IEEE-488 Cable, 1m (3.2 ft)
7007-2 Shielded IEEE-488 Cable, 2m (6.5 ft)
7009-5 RS-232 Cable
7078-TRX-x Low Noise Triax Cable, 3-Slot Triax Connectors,
x=3: 0.9m (3 ft), x=10: 3m (10 ft), x=20: 6m (20 ft)
8501-1 Trigger Link Cable, 1m (3.3 ft)
8501-2 Trigger Link Cable, 2m (6.6 ft)
8503 Trigger Link Cable to 2 male BNCs, 1m (3.3 ft)
8607 1kV Source Banana Cables
PROBES
6517-RH Humidity Probe with Extension Cable
6517-TP Temperature Bead Probe (included with 6517B)
TEST FIXTURE
8009 Resistivity Test Fixture
OTHER
CS-1305 Interlock Connector
ADAPTERS
237-BNC-TRX Male BNC to 3-Lug Female Triax Adapter
237-TRX-NG Triax Male-Female Adapter with Guard
Disconnected
237-TRX-T 3-Slot Male Triax to Dual 3-Lug Female Triax
Tee Adapter
237-TRX-TBC 3-Lug Female Triax Bulkhead Connector
(1.1kV rated)
7078-TRX-BNC 3-Slot Male Triax to BNC Adapter
7078-TRX-GND 3-Slot Male Triax to BNC Adapter, guard removed
7078-TRX-TBC 3-Lug Female Triax Bulkhead Connector with Cap
RACK MOUNT KITS
4288-1 Single Fixed Rack Mounting Kit
4288-2 Du al Fixed Rack Mounting Kit
4288-4 Shelf Rack Mount kit, for 3U and 2U high
instruments
4288-5 Shelf Mount Rack Kit, for two 2U high
instruments
4299-7 Universal Shelf Mount Rack Kit
SCANNER CARDS
6521 Low Current Scanner Card
6522 Voltage/Low Current Scanner Card
GPIB INTERFACES
KPCI-488LPA IEEE-488 Interface/Controller for the PCI Bus
KUSB-488B IEEE-488 USB-to-GPIB Interface Adapter
SERVICES AVAILABLE
6517B-EW 1 Year KeithleyCare Gold Extended
Warranty Plan
6517B-3Y-EW-STD 3 Year KeithleyCare Gold Extended
Warranty Plan
6517B-5Y-EW-STD 5 Year KeithleyCare Gold Extended
Warranty Plan
C/6517B-3Y-STD KeithleyCare 3-Calibration, 3-Year Standard
Calibration Plan
C/6517B-3Y-DATA KeithleyCare 3-Calibration, 3-Year Calibration
Plan with Data
C/6517B-3Y-17025 KeithleyCare 3-Calibration, 3-Year ISO 17025
Calibration Plan
C/6517B-5Y-STD KeithleyCare 5-Calibration, 5-Year Standard
Calibration Plan
C/6517B-5Y-DATA KeithleyCare 5-Calibration, 5-Year Calibration
Plan with Data
C/6517B-5Y-17025 KeithleyCare 5-Calibration, 5-Year ISO 17025
Calibration Plan
6517B Electrometer/High Resistance Meter


Product specificaties

Merk: Keithley
Categorie: Multimeter
Model: 6517B

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