DH48J 電子預(yù)置計(jì)數(shù)器

產(chǎn)品概述

DH48J電子預(yù)置計(jì)數(shù)器是一款采用中規(guī)模專用集成電路設(shè)計(jì)的工業(yè)級計(jì)數(shù)設(shè)備，具備4位LED數(shù)字顯示功能，外觀美觀且安裝便捷。該產(chǎn)品支持?jǐn)?shù)字按鍵開關(guān)預(yù)置，操作簡單直觀，具有穩(wěn)定可靠、抗干擾能力強(qiáng)的特點(diǎn)，適用于多種工業(yè)自動化場景。計(jì)數(shù)器提供手動清零功能，并配備清零引出端子，便于用戶靈活控制。其設(shè)計(jì)符合國際通用面板尺寸標(biāo)準(zhǔn)（48×48mm），體積小巧但功能全面，可廣泛應(yīng)用于機(jī)械設(shè)備、生產(chǎn)線及自動化控制系統(tǒng)中的計(jì)數(shù)需求。139

技術(shù)特點(diǎn)

該計(jì)數(shù)器支持多種電源電壓輸入，包括交流24V、36V、110V、220V、380V及直流24V（其他電壓可定制）。其最大計(jì)數(shù)速度達(dá)30次/秒，最小計(jì)數(shù)脈寬為15ms，適用于機(jī)械開關(guān)、光電傳感器或弱電壓信號輸入。產(chǎn)品提供×1、×10、×100三種倍率選擇，計(jì)數(shù)范圍覆蓋1-999900次，滿足不同場景的精度要求。內(nèi)置斷電記憶功能確保數(shù)據(jù)安全，觸頭容量為AC220V/3A或DC220V/0.5A，具備較長的電壽命（≥10萬次）和機(jī)械壽命（≥100萬次）。1616

應(yīng)用場景

DH48J計(jì)數(shù)器適用于交流50/60Hz、額定電壓380V及以下或直流24V控制電路，可作為計(jì)數(shù)元件實(shí)現(xiàn)預(yù)置數(shù)通斷控制。典型應(yīng)用包括生產(chǎn)線產(chǎn)品數(shù)量統(tǒng)計(jì)、周期性事件記錄、沖壓設(shè)備動作計(jì)數(shù)等。其抗振動設(shè)計(jì)（10-55Hz）和寬溫工作范圍（-5℃至+40℃）使其能在紡織、印刷、礦山等工業(yè)環(huán)境中穩(wěn)定運(yùn)行。通過接點(diǎn)信號、晶體管或光電開關(guān)輸入，可靈活適配各類傳感器和設(shè)備。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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