Meta Description: The JCA-158D digital hammer-type Surface resistance tester delivers high-accuracy measurements for ESD control & insulation testing. Features auto-ranging, built-in temp/humidity sensor, and dual 10V/100V test voltages. Ideal for QA, manufacturing, and compliance.

Product Overview

The JCA-158D Hammer-Type Surface Resistance Tester is a state-of-the-art, portable instrument designed for precise and reliable surface resistance and insulation resistance measurements. Integrating a high-resolution digital display and a precision digital temperature and humidity sensor, it simplifies ESD (Electrostatic Discharge) control and insulation verification processes.

With automatic voltage switching (10V/100V) and intelligent microcomputer control, it delivers fast, stable, and highly accurate readings. This tester is an essential tool for quality control, manufacturing, and maintenance in electronics, aerospace, and static-sensitive environments.

Key Features & Benefits

• High Accuracy & Digital Readout: Get clear, digital resistance readings with high accuracy and excellent stability, eliminating the guesswork associated with analog needle meters.

• Dual Automatic Voltage Switching: The microcomputer intelligently selects the appropriate test voltage (DC 10V or 100V) based on the measured resistance, ensuring optimal measurement conditions without manual intervention.

• Integrated Environmental Sensing: Features a built-in high-precision digital temperature and humidity sensor, allowing you to correlate resistance data with ambient conditions for comprehensive reporting.

• Robust & Safe Design: Engineered with protection against short-circuits, even at the full 100V test voltage, guaranteeing operational safety and instrument durability.

• Wide Measurement Range: Capable of measuring a vast spectrum of resistance values, from conductive materials to high-resistance insulators.

• Portable & Easy to Use: The compact hammer-type form factor allows for quick, on-the-spot testing of work surfaces, floors, and materials.

Applications

The JCA-158D is versatile for various industries and applications:

• ESD Control Program Compliance:

• Testing anti-static work surfaces, floors, chairs, and wrist straps.

• Verifying the resistance of static-control garments, footwear, and packaging.

• Auditing materials in Electrostatic Protected Areas (EPAs).

• Quality Assurance & Incoming Inspection:

• Measuring the insulation resistance of plastics, rubber, and other polymers.

• Testing wires, cables (without shields), and electronic components.

• Manufacturing & Maintenance:

• Ensuring the electrical properties of insulating materials, paints, and coatings.

• Routine maintenance checks in computer rooms, manufacturing lines, and laboratory facilities.

Technical Advantages: Linear vs. Non-Linear Measurement

Unlike traditional analog ohmmeters that use a fixed voltage and display a non-linear scale (where readings are cramped and hard to read at high-resistance values), the JCA-158D employs a advanced microcomputer-based method.

Our instrument maintains a consistent measurement current, providing a linear digital display of the resistance value. This means the resolution is equally high across the entire measurement range, resulting in superior accuracy and easier, error-free interpretation of results, especially at critical high-resistance levels.