Keithley 6485 Picoammeter
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Keithley 6485 is a 5½-digit picoammeter measuring currents from 10fA to 20mA at speeds up to 1000 readings per second.
Product details
| Model | 6485 |
| Manufacturer | Keithley |
| Category | Benchtop Multimeters |
| Availability | Made to order |
Description
Overview
The Keithley 6485 is a cost-effective 5½-digit picoammeter that combines sensitive current measurement capabilities with enhanced speed and robust design. With eight current measurement ranges and high-speed autoranging, the instrument can measure currents from 10fA to 20mA at speeds up to 1000 readings per second. The 6485's resolution and superior sensitivity make it well-suited for characterizing low current phenomena, while its 20mA range supports applications like measuring 4-20mA sensor loops.
Key Features
- Current resolution as low as 10fA with range up to 20mA
- Burden voltage as low as 200μV for high-accuracy measurements in low-voltage circuits
- Autoranging across eight current measurement ranges
- Measurement speeds up to 1,000 readings per second
- Built-in analog outputs for signal response and trend analysis
- Built-in Trigger Link interface for instrument synchronization
- GPIB and RS-232 interfaces for system integration
Applications
- Ultra-low leakage current measurement in components
- Dark current measurement in optical devices
- Beam current measurement in microscopy instrumentation
- 4-20mA sensor loop measurements
- Production testing and characterization
Specifications
| High Frequency (range) | DC <= 1kHz |
| Display Digits | 5.5 |
| True RMS | No |
| Series | 6400 Series |
| Dimensions | 3.5 x 8.37 x 14.56" |
| Interface | GPIB, RS-232 |
| Maximum Current | 20 mA |
| Maximum Input Voltage | 220 V |
| Number of Channels | 1 Channel |
| Operating Temperature Range | 0-50°C |
| Relative Humidity Range | 0-70% |
| Storage | 2500 readings |
| Warranty | 1 Year |
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Keithley 6485 Picoammeter
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