Keithley Meters
19 models with full specifications in Meters.
Keithley's instrumentation range spans from standard bench digital multimeters (DMMs) to highly specialized low-level measurement systems. This product family covers standard multimeters, high-resolution instruments, nanovoltmeters, picoammeters, electrometers, and multi-channel data acquisition switch mainframes. These instruments are designed for applications demanding extreme sensitivity, such as measuring nano-ampere currents, micro-ohm resistances, and nanovolts of potential, as well as general-purpose precision testing. Engineers and technical buyers can choose from standard 6.5-digit bench units up to ultra-high precision 8.5-digit metrology-grade instruments, or select specialized meters dedicated to low-current, low-voltage, or multi-channel scanning environments. Understanding the distinct capabilities of each instrument class is key to selecting the correct system for your testing and development needs.
- Resolution Range
- 4.5 to 8.5 digits
- Best Voltage Resolution
- 1 nV (Keithley 2002, 2182A)
- Lowest Current Sensitivity
- 10 fA (Keithley 6485, 6487)
- Expansion Card Capacity
- Up to 6 slots (Keithley 3706A)
All models
| Model | Type | Display | Operating Temperature | Weight |
|---|---|---|---|---|
| 2015 | Multimeters | Vacuum Fluorescent Display (VFD) | 0 to 50 | 4.2 |
| 2000 | Multimeters | Vacuum Fluorescent Display (VFD) | 0 to 50 | 2.9 |
| 2001 | Multimeters | Multi-line Vacuum Fluorescent Display (VFD) | 0 to +50 | 4.2 |
| 2750 | Multimeters | Vacuum Fluorescent Display (VFD) | 0°C to 50°C | 6.5 |
| 3706 | Multimeters | Graphic vacuum fluorescent display (VFD), monochrome | — | — |
| 2002 | Multimeters | — | 0°C to 50°C | — |
| 6485 | Picoammeters | 5½-digit vacuum fluorescent display (VFD) | 0 °C to 50 °C | 2.8 kg |
| 6487 | Picoammeters | 5.5-digit Vacuum Fluorescent Display (VFD) | 0 to 50 | 4.7 kg |
| 2182A | Voltmeters,misc | 2-line Vacuum Fluorescent Display (VFD) | 0°C to 50°C | 5 kg |
| 2601B | *misc | Dual-line Vacuum Fluorescent Display (VFD) | 0 °C to 50 °C | 4.75 |
| 2010 | Multimeters | 12-character vacuum fluorescent display (VFD) | 0°C to 50°C | 4.2 kg |
| 2100 | Multimeters | 5×7 dot matrix vacuum fluorescent display (VFD) | 0°C to 50°C | 3.75 kg |
| 2700 | Multimeters | 12-character alphanumeric VFD with 7-character secondary display | 0 °C to 50 °C | 3.7 |
| 3706A | Multimeters | 2-line Vacuum Fluorescent Display (VFD) | 0 °C to 50 °C | 7.33 kg |
| 617 | Electrometers | 4½-digit LED with 2-digit exponent | 0°C to 50°C | 2.9 kg |
| 619 | Electrometers | 5½-digit LED display with exponent and function indicators | 0°C to 50°C | 4.1 kg |
| 6514 | Electrometers | 5½-digit Vacuum Fluorescent Display (VFD) | 0°C to 50°C | 2.8 kg |
| DMM7510 | Ammeters | 5-inch color TFT touchscreen with WVGA (800 × 480) resolution | 0 °C to 50 °C | 4.08 kg (without bumpers) / 4.36 kg (with bumpers) |
| 2425 | *misc | 12-character alphanumeric vacuum fluorescent (VFD), 2 lines | 0°C to 50°C | 4.1 kg |
Standard and Precision Digital Multimeters
Keithley's digital multimeters are organized by resolution and measurement capabilities. For standard benchtop and system applications, the 6.5-digit range includes the Keithley 2100, which features a USB 2.0 interface, and the Keithley 2000, which includes GPIB and RS-232 interfaces with an expansion slot for multiplexer cards. For specialized audio testing, the Keithley 2015 6.5-digit multimeter adds an integrated sine wave generator and built-in THD and THD+N processing.
In the high-precision category, the 7.5-digit Keithley 2010 focuses on low-noise measurements with a 100 nV RMS noise floor, while the 7.5-digit Keithley 2001 utilizes a true 28-bit A/D converter for high-speed measurement integrity without averaging. The Keithley DMM7510 features a 7.5-digit resolution, a 5-inch graphical color touchscreen, and an integrated 18-bit digitizer for transient waveform analysis. The highest resolution in this family is offered by the Keithley 2002, an 8.5-digit multimeter capable of 1 nV resolution on its 200 mV DCV range.
Low-Level Electrometers, Picoammeters, and Nanovoltmeters
For measurements exceeding the capability of standard DMMs, Keithley offers specialized sensitive instruments. The electrometers include the 4.5-digit Keithley 617, which features a 100V voltage source, and the 5.5-digit Keithley 619, which can be configured for single- or dual-channel operation with triaxial input connectors. The Keithley 6514 is a 5.5-digit electrometer designed for charge (20 nC to 20 µC), voltage, high-resistance, and current measurements down to a 20 pA range.
For low-current analysis, the Keithley 6485 picoammeter provides 10 fA resolution across eight ranges. The Keithley 6487 adds an integrated voltage source up to ±500 V for high-resistance testing. When measuring low voltages, the Keithley 2182A nanovoltmeter provides a 1 nV best voltage resolution across two channels and supports a coordinated delta mode for low-resistance measurements.
Data Acquisition and Switch Mainframes
For multi-channel testing, Keithley merges DMM functionality with switching matrices. The Integra Series includes the 6.5-digit Keithley 2700, which has two slots for up to 80 channels, and the Keithley 2750, which features five slots for up to 200 channels and offers 1 µΩ resolution.
For higher channel counts and automated testing, the Series 3700 mainframes, including the Keithley 3706 and Keithley 3706A, feature six expansion slots. The 3706A supports up to 576 2-wire multiplexer channels and an integrated 7.5-digit DMM, running Test Script Processor (TSP) scripting for remote automated control.
Source and Measure Integration
For applications requiring simultaneous precision sourcing and measurement on a single channel, the Keithley 2601B SourceMeter (SMU) integrates a power source and measurement system. It delivers up to 40 W DC or 200 W pulsed power, acting as both an electronic load and a high-precision meter.
Popular models
Frequently asked questions
- Which Keithley meters are designed specifically for very low current measurements?
- The Keithley 6485 and Keithley 6487 picoammeters measure low currents down to 10 fA. Additionally, the Keithley 6514 electrometer offers current measurements from 20 pA to 20 mA, and the Keithley 619 electrometer features an input bias current of less than 400 fA.
- What is the primary difference between the Keithley 2700 and 2750?
- The Keithley 2700 is a 2-slot system supporting up to 80 channels, whereas the Keithley 2750 is a 5-slot system supporting up to 200 channels and features 1 µΩ measurement resolution and dry circuit ohms capability.
- Does Keithley offer a multimeter with graphical touchscreen capabilities?
- Yes, the Keithley DMM7510 is a 7.5-digit digital multimeter featuring a 5-inch color capacitive touchscreen display and an integrated 18-bit digitizer.
- Can the Keithley 2182A measure multiple channels?
- Yes, the Keithley 2182A nanovoltmeter has two input channels, where Channel 1 is configured for nanovolt and voltage measurements, and Channel 2 is configured for voltage and temperature measurements.