HACS-Z Series IET LABS

High Accuracy Capacitance Decade Box HACS-Z Series – IET Labs

Precision Capacitance Solution for Calibration and Laboratory Use

The HACS-Z Series from IET Labs is a high-accuracy, wide-range capacitance decade box designed for precise capacitance calibration and simulation. This unit is ideal for laboratory environments, metrology, and applications requiring stable and reliable capacitance values across a broad range.

Available in various models ranging from 1 pF to 11,111 μF, the HACS-Z is built using high-quality capacitors selected for their tight tolerances and long-term stability. The lower range (1 pF, 10 pF) employs trimmable air capacitors for the finest resolution. The mid-range decades use sealed 0505 mica capacitors for stability and low dissipation, while the higher decades utilize hermetically sealed MPPS capacitors, ensuring minimal drift over time.

The HACS-Z offers low zero capacitance (<0.1 pF) due to its three-terminal shielded design. It is equally effective in two-terminal applications, although the measured values may slightly vary. The unit can be used on the bench or rack-mounted, and comes with various output connector options including BNC and binding posts.

Optional features include an extended 1000 μF decade using high-quality electrolytic capacitors (-EC option), or a 1 pF trimmer to enhance resolution at the lower range.

Features

Key Benefits

• Precision calibration and simulation over a wide capacitance range

• Excellent long-term stability and temperature performance

• High accuracy options with minimal zero capacitance

• Three-terminal shielded design for accurate low-level measurements

• Configurable for bench or rack use

• Optional trimmer and electrolytic decade options available

Applications

• Capacitance calibration in metrology labs

• Reference standard for LCR meter verification

• R&D and quality control environments

• Education and training in electronics

• High-precision component testing

Specifications

• Capacitance range: 1 pF to 11,111 μF

• Resolution: 1 pF

• Accuracy:

  • ±(0.05% + 0.5 pF) at 1 kHz up to 1000 μF

  • ±1% for 1000 μF decade (optional EC model available)

• Stability:

  • ±100 ppm/year + 0.1 pF (up to 1 μF)

  • ±200 ppm/year (1 μF to 100 μF)

  • ±500 ppm/year (100 μF to 10,000 μF)

• Temperature coefficient:

  • <20 ppm/°C (up to 1 μF)

  • <50 ppm/°C (1 μF to 10,000 μF)

• Zero capacitance: <0.1 pF

• Connections: BNC connectors or binding posts; rear 874 connectors available

• Mechanical: Bench or optional rack-mount configuration

• Construction: Shielded three-terminal design with low EMF

• Origin: Made in the USA

The HACS-Z Series delivers unmatched performance in high-accuracy capacitance applications and stands as a reliable solution for precise and stable measurement requirements.