Keithley 6485 Single-Channel Picoammeter with GPIB & RS-232 Interfaces

Description

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Keithley 6485 Single-Channel Picoammeter with GPIB & RS-232 Interfaces
Brand:
Keithley
Model No:
6485
Our Model No:
6485
Product Overview
Features
Cost-effective low current measurement solution
10fA resolution
5 1/2-digit resolution
Less than 200?V burden voltage
Up to 1000 readings/second
Built-in Model 485 emulation mode
IEEE-488 and RS-232 interfaces
Analog outputApplications:: Beam monitoring and radiation monitoring
Leakage current testing in insulators, switches, relays, and other components
SEM beam current measurements
Galvanic coupling measurements
Optoelectronic device testing and characterization
Optical fiber alignment
Circuit test and analysis in DCLF circuits
Sensor characterization
I-V measurements of semiconductors and other devices
Nanoelectronic device characterization
Capacitor leakage
Teaching labs
Description
The Keithley 6485 Picoammeter combines Keithley's expertise in sensitive current measurement instrumentation with enhanced speed and a robust design. With eight current measurement ranges and high speed autoranging, this costeffective instrument can measure currents from 20fA to 20mA, taking measurements at speeds up to 1000 readings per second.
The 6485's 10fA resolution and superior sensitivity make it well suited for characterizing low current phenomena, while its 20mA range lets it measure currents high enough for applications such as measuring 4-20mA 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, competitive picoammeters, or user-designed solutions. With a price that's comparable to a general purpose DMM, the 6485 makes picoamp-level measurements affordable for virtually any laboratory or production floor.
Low Voltage Burden and Higher Accuracy
While DMMs typically employ shunt ammeter circuitry to measure current, the 6485 is a feedback picoammeter. This design reduces voltage burden by several orders of magnitude, resulting in a voltage burden of less than 200?V on the lower measurement ranges. The low voltage burden makes the 6485 function much more like an ideal ammeter than a DMM, so it can make current measurements with high accuracy, even in circuits with very low source voltages
Scaled Voltage Analog Output
This output allows the 6485 to transmit measurement results to devices like DMMs, data acquisition boards, oscilloscopes, or strip chart recorders.
220V Overload Protection
This high overload protection and a robust design let the 6485 withstand abusive overflows.
One-Touch Front Panel Design
Functions can be configured easily with the push of a button, without complicated function menus.
Built-In Trigger Link Interface
The Trigger Link interface simplifies synchronizing the 6485 with other instruments and voltage sources. This interface combines six independent selectable trigger lines on a single connector for simple, direct control over all instruments in a system.
RS-232 and IEEE-488 Interfaces
These interfaces make it easy to integrate the 6485 into automated test and measurement systems.
Display On/Off Switch
For research on light-sensitive components, such as measuring the dark currents of photodiodes, the front panel display can be switched off to avoid introducing light that could significantly reduce the accuracy of the results.
REL and LOG Functions
The 6485 can make relative readings with respect to a baseline value or display the logarithm of the absolute value of the measured current.
Resistance Calculations
The 6485 can calculate resistance by dividing an externally sourced voltage value by the measured current.
Rear Panel BNC Inputs
Inexpensive, easy-to-use BNC cables can be employed, rather than more APPLICATIONS expensive triax cables.
Included Components
1 - Single-Channel 5 1/2-Digit Picoammeter w/Line Cord
1 - Low Noise Cable w/Male BNC Ends (4801)
1 - Protective BNC Shield/Cap (CAP-18)
1 - Banana Lead-to-Screw Terminal Adapter (CA-186-1B)
1 - Certificate of Calibration
1 - User Manual (P/N 6487-900-00)
Terms & Conditions
Please note estimated delivery time above. Contact us for details or if you have a delivery requirement. We ask for your patience while striving to ensure your shipment arrives quickly and accurately.
Domestic Shipping
FREE Standard Shipping on items OVER and less than 30lbs to continental U.S. Add for AK, HI, or PR. Please contact us for shipping rates to any overseas US territories including: Northern Mariana Islands, Guam, Puerto Rico, U.S. Virgin Islands and American Samoa.
PO Boxes/APOs require USPS shipping and may therefore experience longer lead times
6.25% Sales Tax for shipping to MA
International Shipping
Due to international voltage requirements, please ask us prior to purchasing to confirm your product will operate correctly in your country.
Please contact us for shipping rates to any overseas U.S. territories.
International customers are responsible for all shipping charges, including any duties or taxes.