Fluke 5700 Series Multifunction Calibrators
2 models with full specifications from Fluke.
The Fluke 5700 Series consists of high-precision multifunction calibrators designed to handle demanding electrical calibration workloads. These instruments serve as metrology standards for calibrating digital multimeters, voltage standards, and precision electrical tools. The family includes the Fluke 5700A and the Fluke 5720A, both of which source direct and alternating voltage, current, and resistance. With highly stable outputs and selectable sensing configurations, these calibrators provide the precision required for laboratory and industrial instrumentation calibration.
- DC Voltage Range
- 0 to ±1100 V
- AC Voltage Range
- 220 µV to 1100 V
- DC Current Range
- 0 to ±2.2 A (11 A with 5725A)
- AC Current Range
- 9 µA to 2.2 A (11 A with 5725A)
- Operating Temperature
- 0 °C to 50 °C
Models in this series
Core Sourcing and Ranges
Both the Fluke 5700A and the Fluke 5720A support extensive direct and alternating voltage and current ranges. DC voltage sourcing is available from 0 to ±1100 V, utilizing discrete ranges of 220 mV, 2.2 V, 22 V, 220 V, and 1100 V. For AC voltage, both models source from 220 µV to 1100 V at frequencies between 10 Hz and 1 MHz. On the Fluke 5720A, the 2.2 V to 22 V ranges support a maximum AC load current of 50 mA RMS, and its 220 mV DC range features an output resistance of 50 Ω.
For current sourcing, both calibrators provide DC current from 0 to ±2.2 A and AC current from 9 µA to 2.2 A across frequencies of 10 Hz to 10 kHz. Sourcing capability can be expanded up to 11 A in both AC and DC modes when paired with the external 5725A Amplifier.
Resistance and Output Configuration
The series provides precise decade resistance values to support standard multimeter resistance checks. Sourced resistance values span from 1 Ω up to 100 MΩ, specifically offering discrete steps at:
- 1 Ω, 1.9 Ω
- 10 Ω, 19 Ω
- 100 Ω, 190 Ω
- 1 kΩ, 1.9 kΩ
- 10 kΩ, 19 kΩ
- 100 kΩ, 190 kΩ
- 1 MΩ, 1.9 MΩ
- 10 MΩ, 19 MΩ
- 100 MΩ
Connection configurations are highly flexible. The Fluke 5700A features a selectable sensing configuration of internal (2-wire) or external (4-wire), while the Fluke 5720A provides selectable 2-wire or 4-wire resistance connection configurations.
Wideband AC Voltage Sourcing
For high-frequency applications, both models can be equipped with Option 5700A-03. This option enables wideband AC voltage sourcing from 300 µV to 3.5 V. The wideband frequency range extends from 10 Hz to 30 MHz, operating with an output impedance of 50 Ω. This allows the calibrators to handle high-frequency RF voltmeter and scope calibration tasks.
Physical and Electrical Specifications
The Fluke 5700A is housed in a chassis measuring 432 mm × 178 mm × 630 mm (W×H×D) and weighs 27.2 kg. It operates from an AC power supply of 100 V, 120 V, 220 V, or 240 V AC ±10% (47 Hz to 63 Hz) with a power consumption of 300 VA. For remote control and automation, the Fluke 5700A is equipped with GPIB (IEEE-488) and RS-232-C interfaces.
Frequently asked questions
- Can these calibrators output current higher than 2.2 A?
- Yes. Both the Fluke 5700A and the Fluke 5720A can expand their DC and AC current sourcing capability up to 11 A when connected to a 5725A Amplifier.
- What is the frequency limit of the standard AC voltage output?
- The standard AC voltage range for both calibrators is 10 Hz to 1 MHz. This can be extended up to 30 MHz with the installation of the Wideband Option 5700A-03.
- Are the resistance outputs selectable between 2-wire and 4-wire connections?
- Yes. The Fluke 5700A supports internal (2-wire) and external (4-wire) sensing selection, and the Fluke 5720A features selectable 2-wire or 4-wire resistance configurations.