752A Reference Divider

752A reference divider compensates for long-term changes in value of the divider resistors by switching positions in various Wheatstone bridge configuration

Manufacturer part number (MPN)

590539

Brand

Fluke

Category

Tools

Ratio Ranges

10:1 and 100:1

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%

Maximum Input Voltage

200V for the 10:1 ratio 1100V for the 100:1 ratio

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.)

• OEM-URL https://www.fluke.com/en-us/product/calibration-tools/electrical-calibration/electrical-standards/752a