Fluke 752A Reference Divider
- Precision 10:1 and 100:1 dividers primarily designed for comparing direct voltage levels to a 10V voltage reference standard.
- Internal switching allows for calibration of different voltage ranges with a 10V standard without the need to change connections.
- Self-calibration procedures enable compensation for long-term changes in the value of the divider resistors by switching their positions in various Wheatstone bridge configurations
- Description
- Additional information
- Specifications
Description
The Fluke 752A is a pinnacle of precision in the world of DC voltage calibration. This high-accuracy reference divider plays a crucial role in establishing and maintaining the integrity of voltage measurements within metrology laboratories.
Key Features:
- Precision 10:1 and 100:1 dividers primarily designed for comparing direct voltage levels to a 10V voltage reference standard.
- Internal switching allows for calibration of different voltage ranges with a 10V standard without the need to change connections.
- Self-calibration procedures enable compensation for long-term changes in the value of the divider resistors by switching their positions in various Wheatstone bridge configurations
- Unparalleled Accuracy:
- Delivers exceptional accuracy with division ratios of 10:1 and 100:1, ensuring highly precise voltage division.
- These ratios are achieved with incredibly low uncertainties, minimizing errors in voltage comparisons.
- Ease of Use and Versatility:
- Designed with user-friendliness in mind, simplifying the calibration process and minimizing operator intervention.
- Its versatility allows for its use in a wide range of calibration applications, making it an invaluable asset in metrology laboratories.
Applications:
- Calibrating DC Voltage Sources and Standards:
- Serves as a fundamental tool for calibrating high-accuracy DC voltage sources, ensuring the accuracy of their output voltages.
- Verifying the Accuracy of Digital Voltmeters (DVMs):
- Plays a critical role in verifying the accuracy of digital voltmeters, ensuring their reliable performance in various measurement scenarios.
- Supporting Advanced Metrology Research:
- Contributes significantly to research and development in metrology, enabling advancements in the field of electrical measurements.
The Fluke 752A is more than just a divider; it’s a cornerstone of accurate voltage measurements. By providing an exceptionally precise and reliable means of voltage division, it empowers metrology laboratories to achieve the highest levels of accuracy in their voltage calibrations, ultimately contributing to advancements in science and technology.
Additional information
Brand | Fluke Calibration |
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Specifications: 752A Reference Divider
Division Ratio | ||
Division Ratio 10:1 ±0.2 ppm | Input :0V to 100V | |
Division Ratio 100:1 ±0.5 ppm | Input :0V to 1000V | |
General Specifications * | ||
Ratio Ranges | 10:1 and 100:1 | |
Ratio Uncertainty | Ratio accuracies that apply for a temperature variation of less than ± 1°C from the self-calibration temperature (between 18°C and 28°C) for up to 8 hours following self-calibration: ——– Range 10:0: Input Voltage: 0 to 100V Output Uncertainty: 0.2 ppm Null Accuracy: ±0.5 mV** ——– Range 100:1: Input Voltage: 0 to 1000V Output Uncertainty: 0.5 ppm Null Accuracy: ±1.0 mV** |
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Temperature Coefficient | £ ± 1 ppm per °C over range of 18°C to 28°C (typically 0.1 ppm per °C from 15°C to 30°C | |
Input Resistance | 10:1 Ratio:380 kΩ ± 1% 100:1 Ratio:Divider is 4 MΩ; Driven Guard is 4 MΩ; total is 2 MΩ ± 1% |
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Maximum Input Voltage | 200V for the 10:1 ratio 1100V for the 100:1 ratio |
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Power Coefficient | £ 0.05 ppm of output with 100V applied for 10:1 ratio and £ 0.3 ppm of output with 1000V applied for 100:1 ratio (included in the ratio accuracy specifications) | |
Temperature | 0°C to 50°C, operating; -40°C to 75°C non-operating | |
Relative Humidity | £ 75% to 40°C, £ 45% to 50°C, non-condensing, operating; £ 100% 10-50°C, non-operating | |
Altitude | £ 3050m (10,000 ft) operating;£ 12,220m (40,000 ft) non-operating | |
Vibration | Per MIL-T-28800C, Type III, Class 5, Style E | |
Safety | IEC 348, 2nd edition, 1978; ANSI-C39.5, 1980, CSA 556B, and UL 1244 | |
Calibration Documentation | Statement of calibration practices included; performance check optional | |
Size | 19.1 cm H x 22.1 cm W x 60.3 cm L (7.53 in H x 8.69 in W x 23.75 in L) | |
Weight | 8.4 kg (18.5 lbs.) | |
*Specifications apply for the lifetime of the instrument over the temperature range of 18°C to 28°C.
**Null accuracy refers to the required accuracy of the null detector reading during self-calibration.