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ISO 9001 Certified


Vanguard Instruments Company, Inc., Electronic Testing Equipment, Ontario, CA
       

Turns Ratio Calibration Standard

Turns Ratio Tester Calibration Device

 
       
9130-UC [Turns Ratio Calibration Standard]

The Vanguard Turns Ratio Calibration Standard is designed to calibrate all Vanguard Turns Ratio Testers. It offers selectable turns ratios from 0.8 to 33,000 to 1 with accuracy of ±0.05% of the set value guaranteed for turns ratios from 0.8 to 5,000.

The Vanguard Turns Ratio Calibration Standard features three decade rotary switches (unit, 10th, and 100th) for selecting the turns ratio. A multiplier switch provides  1, 10, 100, 200, 1000, and 3000 multiplier values.
The unit uses a nickel-iron supper-alloy core toroidal transformer to ensure a very low excitation in order to achieve high turns ratio accuracy. Up to 250Vac test voltage can be used with the Vanguard Turns Ratio Calibration Standard. The high excitation test voltage allows the unit to be used with virtually all turns ratio testers on the market.
A turns ratio calibration certificate is provided with each Turns Ratio Calibration Standard.
       

Turns Ratio Calibration Standard

Technical Specifications

 
       
PHYSICAL SPECIFICATIONS Dimensions: 16” x 7” x 13.5” (40.6 cm x 17.8 cm x 34.3 cm)
Weight: 22 lbs. (9.98 Kg)
MAX EXCITATION VOLTAGE 250 Vac, 50/60 Hz
TURNS RATIO RANGE
0.8 to 33,000
TURNS RATIO RESOLUTION
0.01 step for turns ratios from 0.8 to 11
0.1 step for turns ratios from 11 to 111
1.0 for turns ratios from 111 to 1110
TURNS RATIO ACCURACY
0.8 to 5,000: ±0.05% of setting
5,001 to 10,000: ±0.1% of setting
10,001 to 20,000: ±0.20% of setting
20,001 to 33,000: ±0.35% of setting
ENVIRONMENT Operating: -10ºC to 50ºC (15ºF to +122ºF)
Storage: (-30ºC to 70ºC (-22ºF to +158ºF)
HUMIDITY (MAX) 90% RH @ 40˚ C (104˚ F) non-condensing
ALTITUDE (MAX) 2000m (6562 ft) to full safety specifications
WARRANTY One year on parts and labor
Specifications are valid at nominal voltage and ambient temperature of +25˚C (+77˚F).