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2100

Overview

The 2100 USB Digital Multimeter is a member of Keithley’s family of high performance DMMs. Its high accuracy (38ppm), 6½-digit resolution is ideal for critical measurements. The 2100 features 11 measurement functions and 8 math functions to easily accommodate the most commonly measured parameters . All accessories, such as USB cable, probes, and software, are included with the 2100. With its unique combination of high precision and low total cost of ownership, the 2100 is an unbeatable value for R&D engineers, test engineers, scientists, and students making basic precision measurements on the bench and in system applications.

High Precision, Low Cost

The 2100 provides stability, accuracy, and speed at a very low cost. It has 0.0038% 1year basic DC voltage accuracy on the 10V range and 0 .013% 1-year basic resistance accuracy on the 10kΩ range. At 6½ digits, the 2100 delivers 50 triggered readings/s through the USB remote interface. At the fast 4½ digit setting, it reads over 2000 readings/s into its 2000-reading internal buffer.

The 2100 provides a wide number of measurement ranges and functions:

  • DC voltage: 0 .1V, 1V, 10V, 100V, and 1000V

  • AC voltage: 0 .1V, 1V, 10V, 100V, and 750V

  • DC current: 10mA, 100mA, 1A, and 3A

  • AC current: 1A and 3A

  • Two- and four-wire resistance: 100Ω, 1kΩ, 10kΩ, 100kΩ, 1MΩ, 10MΩ, and 100MΩ

  • Frequency: From 3Hz to 300kHz

  • Period measurement

  • Diode measurement

  • Programmable A-D converter and filter settings for signal to noise optimization

Additionally, eight mathematical operations can be performed on measurement readings: RATIO, %, Min/Max, NULL, Limits, mX+b, dB, and dBm testing. Microsoft Office, Word, and Excel add-in tools allow remote storage and recall of the measured values from these applications. A graphing utility enables charting of measurements versus time for trending and noise observations .

The TMC compliant USB remote interface enables control from a PC for consistent test/calibration procedure execution and easy re-use of existing SCPI programs, including Agilent Model 34401A command emulation.

Simple to Use

The 2100 can be set up quickly and is easy to use. It has a high-contrast front panel and keypad that are intuitive and user-friendly. An easy to read 5×7 dot matrix, vacuum fluorescent display (VFD) offers three-color annunciators so users can easily distinguish each function symbol by its color.

Strength and Versatility

With its rugged construction and rubber bumpers, the 2100 has the durability to withstand bench, portable, or stacking applications. A sturdy carrying handle facilitates transportability.

Key Features

  • 11 measurement functions cover most commonly measured parameters

  • Fully specified accuracies on all functions for ISO-compliant results

  • Included PC software utilities for graphing and data sharing in both Microsoft® Word and Excel

  • Rugged construction for durability in bench/portable applications

  • Selectable front/rear inputs facilitate bench or rack use

  • Includes all accessories, such as startup software, USB cable, power cable, and safety test lead, for lowest total cost

  • CE compliant and UL listed

  • TMC compliant USB 2.0 interface for use with SCPI test programs

Applications

The 2100 USB Digital Multimeter is ideal for applications in electronic device, circuit, module, and product testing; lowcost production testing of electrical and electronic components, sub-assemblies, and end products; and student lab assignments. Typical applications include:

  • Test Engineers: Manual and semi-automatic electrical functional test

  • Development Engineers: Electrical/electronic circuit and product validation

  • Service/Calibration Technicians: Electronic product repair and calibration

  • Research Scientists: Electrical and physics experiments testing

  • Engineering Students: Electronic device and circuits experiment testing

Startup Software, PC Utilities Included

The KI-Tool application provides charting and graphing capabilities without programming to simplify setup, checkout, and basic measurement applications that require graphical data representation. Scale, offset, and level can be adjusted to finetune images for visual evaluation of signal and noise elements over time. It also includes tabular data and SCPI command prompt windows for maximum flexibility. Data sets can also be saved to diskfiles.


The Microsoft Excel Add-In utility is also included and provides quick data import into a standard Microsoft Excel spreadsheet, including selectable graphing, instrument settings, and number of data points collected. Data can then be analyzed through standard or optional Microsoft Excel functions, including graphical, statistical, and trend charting. A version supporting Microsoft Word is also included for direct data import into reports.

Specifications

DC Characteristics

Accuracy ±(% of reading + % of range)

Specifications valid:

  • After two hour warm-up.

  • ADC set for continuous trigger operation.

  • Input bias current <30pA at 25°C.

  • Input protection 1000V all ranges (2W input).

  • Measurement rate set to 1 PLC.

DC Voltage

Range

Resolution

Input Resistance

1 Year, 18°C to 28°C

100.0000mV

0.1 µV

>10 GΩ

0.0055 + 0.0040

1.000000V

1.0 µV

>10 GΩ

0.0045 + 0.0008

10.00000V

10µV

>10 GΩ

0.0038 + 0.0006

100.0000V

100µV

10 MΩ

0.0050 + 0.0007

1000.000V

1mV

10 MΩ

0.0055 + 0.0010

DC Current (DCI)

Range

Resolution

Shunt Resistance

1 Year, 18°C to 28°C

10.00000mA

10 nA

5.1 Ω

0.055 + 0.025

100.0000mA

100 nA

5.1 Ω

0.055 + 0.006

1.000000A

1 µA

0.1 Ω

0.120 + 0.015

3.00000A

10 µA

0.1 Ω

0.150 + 0.025

Resistance

Specifications for 4-wire ohms mode. For 2-wire ohms, use zero null or subtract lead resistance from displayed reading. Maximum lead resistance 10% of range per lead for 100Ω and 1kΩ ranges; add 1kΩ per lead for all other ranges.

Range

Resolution

Test Current

1 Year, 18°C to 28°C

100.0000Ω

100 µΩ

1 mA

0.015 + 0.005

1.000000kΩ

1 mΩ

1 mA

0.015 + 0.002

10.00000kΩ

10 mΩ

100 µA

0.013 + 0.002

100.0000kΩ

100 mΩ

10 µA

0.015 + 0.002

1.000000MΩ

1Ω

5 µA

0.017 + 0.002

10.00000MΩ

10 Ω

500 nA

0.045 + 0.002

100.0000MΩ

100 Ω

500 nA||10 MΩ

1.00 + 0.020

Diode Test

Range

Resolution

Test Current

1 Year, 18°C to 28°C

1.0000V

10µV

1mA

0.040 + 0.020

Continuity

Range

Resolution

Test Current

1 Year, 18°C to 28°C

1000.00Ω

10mΩ

1mA

0.024 + 0.030

Measurement Noise Rejection DC (60Hz/50Hz)

Rate

Digits

CMRR
For 1kΩ unbalance in LO lead

NMRR
For line frequency ±0.1%

10PLC

6½

140 dB

60dB

1PLC

5½

140 dB

60 dB

Temperature (RTD)

Range

Resolution

4-Wire Accuracy, 1 Year, 18°C to 28°C
Excluding probe errors

−100°C to +100°C

−200°C to +630°C

0.001°C

0.001°C

±0.1°C

±0.2°C

RTD Type: 100Ω platinum (PT100), D100, F100, PT385, or PT3916.

Maximum Lead Resistance (each lead): 12Ω (to achieve rated accuracy).

Sensor Current: 1mA (pulsed).

AC Characteristics

Accuracy ±(% of reading + % of range). Specifications valid after two hour warm-up at 6½ digit with slow AC filter (3Hz bandwidth) and pure sine wave input greater than 5% of range.

Frequency and Period

Range

Frequency (Hz)

1 Year (% of reading)
18°C to 28°C

100mV to 750V

750 VAC range is limited to 100kHz

3 to 5

0.10

5 to 40

0.05

40 to 300,000

0.01

ACV (AC TRMS Voltage)

Range

Resolution

Frequency (Hz)

1 Year, 18°C to 28°C

100.0000mV

0.1 µV

3 to 5

1.15 + 0.05

5 to 10

0.45 + 0.05

10 to 20,000

0.08 + 0.05

20,000 to 50,000

0.15 + 0.06

50,000 to 100,000

0.70 + 0.09

100,000 to 300,000

4.25 + 0.60

1.000000V to 750.000V

750VAC range is limited to 100kHz

1.0 µV to 1mV

3 to 5

1.10 + 0.04

5 to 10

0.4 + 0.04

10 to 20,000

0.08 + 0.04

20,000 to 50,000

0.14 + 0.06

50,000 to 100,000

0.70 + 0.08

100,000 to 300,000

4.35 + 0.50

ACI (AC TRMS Current)

Range

Resolution

Frequency (Hz)

1 Year, 18°C to 28°C

1.000000 A

1 µA

3 to 5

1.10 + 0.05

5 to 10

0.40 + 0.05

10 to 5000

0.15 + 0.05

3.000000 A

10µA

3 to 5

1.25 + 0.07

5 to 10

0.45 + 0.07

10 to 5000

0.20 + 0.07

Figure 1. 2100 rear panel

General

AC CMRR

70dB (for 1kΩ unbalance LO lead).

Power Supply

120V/220V/240V.

Power Line Frequency

50/60Hz auto detected.

Power Consumption

25VA maximum.

Digital I/O Interface

USB-compatible Type B connection.

Environment

For indoor, non-residential use only.

Operating Temperature

5°C to 40°C.

Operating Humidity

Maximum relative humidity 80% for temperature up to 31°C, decreasing linearly to 50% relative humidity at 40°C.

Storage Temperature

−25°C to 65°C.

Operating Altitude

Up to 2000 m above sea level.

Bench Dimensions

With handles and feet: 112mm high × 256mm wide × 375mm deep (4.4 in. × 10.1 in. × 14.75 in.).

Weight

4.1kg (9 lbs.).

Safety

Conforms to European Union Directive.

EMC

Conforms to European Union Directive.

Warranty

One year.

Ordering Information

2100/100

6½-digit USB Digital Multimeter (100V)

2100/120

6½-digit USB Digital Multimeter (120V)

2100/220

6½-digit USB Digital Multimeter (220V)

2100/230-240

6½-digit USB Digital Multimeter (230V to 240V)

Supplied Accessories

USB Cable

LabVIEW, IVI Drivers, and the Keithley I/O Layer (available at tek.com)

Power Cable

Safety Test Leads

KI-Tool

KI-Link Add-in, which includes Microsoft Word and Excel versions

Available Accessories

4299-3

Single unit universal rack mount kit

5805

Kelvin probes, 0.9 m (3 ft)

5805-12

Kelvin probes, 3.6 m (12 ft)

8620

Shorting plug