# Keithley 2182A Nanovoltmeter (Pre-Owned)

# Keithley 2182A Nanovoltmeter (Pre-Owned)

## Key Features At A Glance

-   Two-channel nanovoltmeter optimized for stable, low-noise voltage measurements and low-resistance characterization
-   Typical 15 nV p-p noise at 1 s response time and 40–50 nV p-p noise at 60 ms response time
-   Delta mode coordinates measurements with a reversing current source at up to 24 Hz with 30 nV p-p typical noise for a single reading
-   Line synchronization provides 110 dB NMRR and minimizes the effect of AC common-mode currents
-   Dual channels support voltage, temperature, or ratio measurement of an unknown resistance to a reference resistor
-   Built-in thermocouple linearization and cold junction compensation for direct temperature readings
-   GPIB (IEEE-488.2) and RS-232C interfaces with SCPI command support for automated test integration
-   Pulse-mode measurement capability when paired with the Model 6221 — line-synchronized voltage measurements within current pulses from 50 µs to 12 ms

The Keithley 2182A Nanovoltmeter is a two-channel instrument optimized for making stable, low-noise voltage measurements and for characterizing low-resistance materials and devices reliably and repeatably. It replaces the original Model 2182 and adds pulse capability, lower measurement noise, faster current reversals, and a simplified delta mode for resistance measurements when paired with a reversing current source such as the Model 6220 or 6221.

The 2182A is applied to research, metrology, and other low-voltage testing work. Listed research applications include determining the transition temperature of superconductive materials, I-V characterization of a material at a specific temperature, and calorimetry. Listed metrology applications include intercomparisons of standard cells and use as a null meter for resistance bridge measurements. The combined 2182A and 622X configuration is also used for resistance measurements, pulsed I-V measurements, differential conductance measurements, and nanotechnology work on carbon nanotube–based materials and silicon nanowires.

ValueTronics International is headquartered at 1675 Cambridge Drive in Elgin, Illinois, where we operate a 20,000 sq ft secure warehouse stocking professional test and measurement instrumentation. Each {{CONDITION}} 2182A leaves our facility after inspection by our in-house technical team, which sets us apart from drop-shipping resellers and pass-through brokers who never physically handle the instruments they list.

## Brand Heritage

Keithley Instruments was founded in 1946 and became part of Tektronix in 2010, which itself operates within the Fortive group of test and measurement businesses. Instruments carrying the Keithley brand continue to be developed and supported within that organization.

## Accessories Supplied

-   2107-4 Low Thermal Input Cable with spade lugs, 1.2 m (4 ft)
-   User manual
-   Service manual
-   Contact cleaner
-   Line cord
-   Alligator clips

## Product Core & Specifications

Volts Specifications (20% over range)

Channel

Range

Resolution

Input Resistance

24 Hour TCAL ±1°C

90 Day TCAL ±5°C

1 Year TCAL ±5°C

2 Year TCAL ±5°C

Channel 1

10.000000 mV

1 nV

\>10 GΩ

20 + 4

40 + 4

50 + 4

60 + 4

Channel 1

100.00000 mV

10 nV

\>10 GΩ

10 + 3

25 + 3

30 + 4

40 + 5

Channel 1

1.0000000 V

100 nV

\>10 GΩ

7 + 2

18 + 2

25 + 2

32 + 3

Channel 1

10.000000 V

1 µV

\>10 GΩ

2 + 1

18 + 2

25 + 2

32 + 3

Channel 1

100.00000 V

10 µV

10 MΩ ±1%

10 + 3

25 + 3

35 + 4

52 + 5

Channel 2

100.00000 mV

10 nV

\>10 GΩ

10 + 6

25 + 6

30 + 7

40 + 7

Channel 2

1.0000000 V

100 nV

\>10 GΩ

7 + 2

18 + 2

25 + 2

32 + 3

Channel 2

10.000000 V

1 µV

\>10 GΩ

2 + 1

18 + 2

25 + 2

32 + 3

DC Noise Performance — Channel 1 (p-p, 60 Hz)

Response Time

NPLC, Filter

10 mV

100 mV

1 V

10 V

100 V

NMRR / CMRR

25.0 s

5, 75

6 nV

20 nV

75 nV

750 nV

75 µV

110 dB / 140 dB

4.0 s

5, 10

15 nV

50 nV

150 nV

1.5 µV

75 µV

100 dB / 140 dB

1.0 s

1, 18

25 nV

175 nV

600 nV

2.5 µV

100 µV

95 dB / 140 dB

667 ms

1, 10 or 5, 2

35 nV

250 nV

650 nV

3.3 µV

150 µV

90 dB / 140 dB

60 ms

1, Off

70 nV

300 nV

700 nV

6.6 µV

300 µV

60 dB / 140 dB

Temperature (Thermocouples, ITS-90)

Type

Range

Resolution

Accuracy (23° ±5°C, vs Simulated Ref Junction)

J

−200 to +760°C

0.001 °C

±0.2 °C

K

−200 to +1372°C

0.001 °C

±0.2 °C

N

−200 to +1300°C

0.001 °C

±0.2 °C

T

−200 to +400°C

0.001 °C

±0.2 °C

E

−200 to +1000°C

0.001 °C

±0.2 °C

R

0 to +1768°C

0.1 °C

±0.2 °C

S

0 to +1768°C

0.1 °C

±0.2 °C

B

+350 to +1820°C

0.1 °C

±0.2 °C

Measurement Characteristics

A/D Linearity

±(0.8 ppm of reading + 0.5 ppm of range)

Input Impedance (10 mV–10 V)

\>10 GΩ, in parallel with <1.5 nF (Front Filter ON); <0.5 nF (Front Filter OFF)

Input Impedance (100 V)

10 MΩ ±1%

DC Input Bias Current

<60 pA DC at 23°C, −10 V to 5 V; <120 pA at 23°C, 5 V to 10 V

Common Mode Current

<50 nA p-p at 50 Hz or 60 Hz

Input Protection

150 V peak to any terminal; 70 V peak Channel 1 LO to Channel 2 LO

Channel Isolation

\>10 GΩ

Earth Isolation

350 V peak, >10 GΩ and <150 pF any terminal to earth

Analog Output

Maximum Output

±1.2 V

Accuracy

±(0.1% of output + 1 mV)

Output Resistance

1 kΩ ±5%

Gain

Adjustable from 10−9 to 106

Triggering and Memory

Window Filter Sensitivity

0.01%, 0.1%, 1%, 10%, or full scale of range (none)

**Important:** Input protection is 150 V peak to any terminal and 70 V peak between Channel 1 LO and Channel 2 LO. Channel 2 must be referenced to Channel 1, and Channel 2 HI must not exceed 125% of the selected Channel 2 range (referenced to Channel 1 LO).**Important:** Channel 2 must be referenced to Channel 1. Channel 2 HI must not exceed 125% (referenced to Channel 1 LO) of the Channel 2 range selected.**Important:** Input protection is 150 V peak to any terminal and 70 V peak Channel 1 LO to Channel 2 LO. Do not exceed these limits.**Important:** 2.5 hours warm-up is required to rated accuracy.**Important:** The Model 2187-4 Low Thermal Test Lead Kit is sold separately and is required for applications where the standard 2107-4 cable is not sufficient (e.g., DUTs with special connection requirements or impedance roughly 1 GΩ or higher, where measuring directly across the DUT leads to loading errors).Recommended pairing: combine the 2182A with a Keithley Model 6220 or 6221 Current Source to enable simplified delta-mode resistance measurements, differential conductance characterization, and (with the 6221) pulsed I-V testing as described in the datasheet.

## About this used unit

-   Warranty included
-   Functional verification included
-   Standard Calibration Upgrade Options: No Calibration Required, NIST Traceable, Z540.1 or ISO 17025 with Data, Z540.3 Guardbanding with Data.
-   Note that unnecessary accessories may not be included (contact Test Architect to confirm).

**Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.**

## Details

- **Price:** 0.0 USD
- **Vendor:** Keithley
- **Type:** Nanovoltmeter
- **Tags:** Keithley, Manufacturers, Meters & DAQ, Other, product_manual_group_2, Product_used

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 0.00 USD | In stock |

## Images

- Keithley 2182A Nanovoltmeter (Pre-Owned)

---

> Source: [ValueTronics](https://valuetronics.com/products/2182a-keithley-meter-used)
> Updated: 2026-05-30