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Ammeter, Calibrated, DC Current, Bench, 2nA to 20mA, Average, 3000


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Manufacturer Part No:
6487 CAL
Newark Part No.:
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Technical Datasheet:
6487 CAL   Datasheet
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DC Current



2nA to 20mA




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Technical Documents (1)

Product Overview

The 6487 CAL from Keithley is a high resolution bus programmable 5.5 digit picoammeter/voltage source. It improves on the measurement capability of the award-winning model 6485 and adds high resolution 500V source. 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 2nA to 20mA, take measurements at speeds up to 1000 readings per second and source voltage from 200µV to 505V. The model 6487’s 10fA resolution, superior sensitivity, voltage sweeping and alternating voltage resistance measurements make it well suited for characterizing low current devices. Using the latest current measurement technology, it is significantly less expensive than other instruments that perform similar functions, such as optical power meters, tera-ohmmeters, competitive picoammeters or user designed solutions.
  • Calibrated picoammeter/voltage source
  • 4 pin DIN interlock connector, automatic or manual ranging
  • Low voltage burden and higher accuracy (<200µV burden voltage), digital I/O
  • Built-in model 486 and 487 emulation mode, floating measurements up to 500V
  • IEEE-488 and RS-232 interfaces analogue output, automated voltage sweeps for I-V characterization
  • Scaled voltage analogue output and 220V overload protection
  • One-touch front panel design, built-in trigger link interface, 12 character vacuum fluorescent
  • Display on/off switch, alternating voltage method ohms measurements
  • 100V to 120V or 220V to 240V, 50Hz to 60Hz, 30VA input
  • 90mm (H) × 214mm (W) × 369mm (D) case dimension, <4.7Kg net weight, 0° to 50°C operating temperature


Test & Measurement


6487 picoammeter with line cord, Triax protective shield/cap (CAP-31), 7078-TRX-3 triax cable, 8607 1KV source banana cable set, CS-459 4-pin female interlock connector, Certificate of calibration, User manual (P/N 6487-900-00), Product information CD-ROM that contains PDFs of the user’s and reference manuals.


Before plugging in the power cord, make sure that the front panel power switch is in the off (O) position.


The maximum safe voltage between picoammeter LO and chassis ground (common mode voltage) is 42V. The 6485 does not internally limit the LO to chassis voltage. Exceeding 42V can create a shock hazard.

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