DH48J 电子预置计数器

产品概述

DH48J电子预置计数器是一款采用中规模专用集成电路设计的工业级计数设备，具备4位LED数字显示功能，外观美观且安装便捷。该产品支持数字按键开关预置，操作简单直观，具有稳定可靠、抗干扰能力强的特点，适用于多种工业自动化场景。计数器提供手动清零功能，并配备清零引出端子，便于用户灵活控制。其设计符合国际通用面板尺寸标准（48×48mm），体积小巧但功能全面，可广泛应用于机械设备、生产线及自动化控制系统中的计数需求。139

技术特点

该计数器支持多种电源电压输入，包括交流24V、36V、110V、220V、380V及直流24V（其他电压可定制）。其最大计数速度达30次/秒，最小计数脉宽为15ms，适用于机械开关、光电传感器或弱电压信号输入。产品提供×1、×10、×100三种倍率选择，计数范围覆盖1-999900次，满足不同场景的精度要求。内置断电记忆功能确保数据安全，触头容量为AC220V/3A或DC220V/0.5A，具备较长的电寿命（≥10万次）和机械寿命（≥100万次）。1616

应用场景

DH48J计数器适用于交流50/60Hz、额定电压380V及以下或直流24V控制电路，可作为计数元件实现预置数通断控制。典型应用包括生产线产品数量统计、周期性事件记录、冲压设备动作计数等。其抗振动设计（10-55Hz）和宽温工作范围（-5℃至+40℃）使其能在纺织、印刷、矿山等工业环境中稳定运行。通过接点信号、晶体管或光电开关输入，可灵活适配各类传感器和设备。71821

Product Introduction (English)

The DH48J electronic preset counter is an industrial-grade counting device featuring a 4-digit LED display and dedicated integrated circuit design. With its compact DIN-standard housing (48×48mm), it offers easy installation and intuitive operation via digital keypad presetting. The product includes manual reset functionality with external reset terminals, ensuring reliable performance in diverse automation scenarios. Its robust construction and anti-interference capabilities make it suitable for harsh industrial environments.1916

Key Features

This counter supports multiple power inputs including AC 24V-380V and DC 24V (custom voltages available). It achieves counting speeds up to 30 pulses/second with 15ms minimum pulse width, compatible with mechanical switches, photoelectric sensors or low-voltage signals. Three multiplication factors (×1/×10/×100) enable counting ranges from 1 to 999,900 counts. The memory retention function safeguards data during power outages, while its contact capacity reaches 3A/220V AC or 0.5A/220V DC. The product demonstrates exceptional durability with electrical/mechanical lifespans exceeding 100,000/1,000,000 operations respectively.3621

Typical Applications

Ideal for 50/60Hz circuits under 380V AC or 24V DC, the DH48J serves as a counting element for preset control in automated systems. Common uses include production line quantity tallying, periodic event logging, and press machine stroke counting. Its vibration resistance (10-55Hz) and wide temperature tolerance (-5℃ to +40℃) ensure stable performance in textiles, printing, mining and similar industries. Flexible input options accommodate various sensors including contact switches, transistors and proximity detectors.71827

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