This item is an excellent condition used Andeen-Hagerling AH 2500A Precision Capacitance Bridge. Includes a power cord, ground leads with a clip and a connection cord. All functions have been tested and verified. All pictures are of the actual unit and accessories.
This item comes with a 6 Month (180 day) warranty. Every pre-owned unit we offer goes through meticulous inspection and NIST calibration to guarantee its reliability and durability.
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Item is in stock and located in Texas.
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Andeen-Hagerling AH 2500A Precision Capacitance Bridge
Specifications.
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The Andeen-Hagerling AH 2500A is an automatic precision capacitance and loss bridge operating at 1 kHz. It is designed to measure extremely small capacitance values and dielectric losses with outstanding accuracy and stability. Its ratio-transformer design and temperature-controlled fused-silica capacitance standard provide excellent measurement performance for demanding laboratory and calibration applications.
Key Specifications
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Manufacturer: Andeen-Hagerling
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Model: AH 2500A
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Product Type: Ultra-Precision Automatic Capacitance Bridge
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Operating Frequency: 1 kHz
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Frequency Accuracy: ±0.005%
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Capacitance Accuracy: 5 ppm (standard version)
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Features
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Ultra-high-precision capacitance and dielectric loss measurements
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Automatic measurement ranging
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Extremely high measurement stability
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Measures very low dielectric losses
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External DC bias capability up to ±100 V
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Deviation measurements against reference values
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Zero correction for test fixture capacitance and loss
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External measurement triggering
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Automatic internal calibration
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Built-in self-test diagnostics
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Remote operation through IEEE-488 and RS-232 interfaces
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Three-terminal BNC connections
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Optional Enhanced Performance
The manufacturer offered Option E for enhanced performance. It improves certain accuracy, stability, and resolution specifications. The figures listed above are for the standard version; Option E performance should only be claimed if that option is confirmed on this particular unit.
Specifications are based on Andeen-Hagerling manufacturer documentation.
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Capacitance Stability: Better than 1 ppm/year
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Capacitance Resolution: As low as 0.5 attofarad (aF)
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Relative Resolution: 0.15 ppm
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Temperature Coefficient: Approximately 0.03 ppm/°C
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Minimum Dissipation Factor: 1.5 × 10⁻⁸
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Maximum External DC Bias: ±100 V
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AC Test Signal Voltages: 3.75 V, 7.50 V, and 15.0 V
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Measurement Display: Eight-digit LED display
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Measurement Functions: Capacitance, dielectric loss, deviation measurements, and zero correction
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Measurement Connections: Three-terminal BNC
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Remote Interfaces: IEEE-488 (GPIB) and RS-232
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Measurement Speed: Full-precision measurements in less than 0.5 second
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Power Consumption: 25 W
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Operating Temperature: 0°C to +45°C
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Storage Temperature: -40°C to +75°C
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Humidity: 0–85% RH, non-condensing
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Dimensions: 3.5 inches high × 15 inches deep (8.9 × 38.1 cm)
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Weight: Approximately 18 lb (8.2 kg)
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