NAHLY 600A Contacts (circuit) resistance tester  NAHLY高精度600A回路电阻测试仪

产品简介

回路电阻测量是电气测试的重要内容，根据《中华人民共和国电力行业标准》DL/T845.4-2004的标准，参照《电阻测量装置通用技术条件第4部分：回路电阻测试仪》的要求。本公司研制了全新NAHLY回路电阻测试仪，可方便地进行高低压开关的主触头接触电阻值、高低压电缆线路的直流电阻值等纯阻性试品的测量。

本产品使用了高精度、高稳定度的直流恒流源，可提供固定直流电流输出，克服了传统回路电阻测量仪需调节电流输出的缺点；本产品采用了宽温带背光的大屏幕图形液晶显示器，而不是传统的数码管显示方式，可直观的显示汉字，使得仪器操作显得更加方便、简洁；本产品使用了精密仪用运算放大器和高精度A/D转换器，结合高性能十六位单片机，确保了该产品的测试准确度；本产品还设计了实时日历时钟、数据存储、打印以及保护等功能，使得该产品功能更加完备，性价比更高。

The NAHLY 600A Circuit Resistance Tester is a high-precision instrument designed for measuring loop resistance in electrical systems. Below is a structured overview of its features and specifications:

Product Overview

• Application: Measures contact resistance of high/low-voltage switch main contacts, DC resistance of cables, and other purely resistive components.

• Compliance:

• Meets DL/T 845.4-2004 (Chinese Power Industry Standard).

• Follows General Technical Conditions for Resistance Measurement Devices – Part 4: Loop Resistance Testers.

Key Features

1. High-Precision DC Constant Current Source

• Provides fixed DC current output (600A) without manual adjustment, ensuring stable and repeatable measurements.

2. Advanced Display & Interface

• Large backlit LCD screen (graphical, wide-temperature range) with Chinese/character display for intuitive operation.

• Replaces traditional LED/LED displays for better readability.

3. Accurate Measurement Technology

• Utilizes precision instrumentation amplifiers, high-accuracy A/D converters, and a 16-bit microcontroller for reliable results.

4. Enhanced Functionality

• Real-time clock: Timestamps test data.

• Data storage & printing: Supports record-keeping and report generation.

• Protection mechanisms: Safeguards against operational errors.

5. User-Friendly Design

• Simplified operation with automated current output and clear menu navigation.

Typical Applications

• High/Low-voltage switches: Contact resistance testing.

• Power cables: DC resistance measurement.

• Quality control & maintenance: Ensures compliance with safety standards.