OH4N Unipolar Hall Effect IC (N pole):加拿大BW四合一气体检测仪销售维修代做计量

更新时间：2026-05-28 07:42:14

OH4N Unipolar Hall Effect IC (N pole)

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型号：OH4N
品牌：欧卓 OUZHUO
OH4N Unipolar Hall Effect IC (N pole)
General Description:
Part No.: OH4N Operate temperature: -40～150℃ Package:3000pcs/Reel

OH4N unipolar hall IC includes an on-chip Hall voltage generator for magnetic sensing, an amplifier that amplifies the Hall voltage, a schmitt trigger to provide switching hysteresis for noise rejection, and an open-collector output. It detects the changes of Magnetic field (N pole) and output a digital voltage signal. With the typical feature of wide range of working Voltage, operate temperature and high load capacity, OH4N performs well in many applications, such as position control, speed detection and flow detection as a non-contact magnetic sensor.

Features
 High load capacity
 The good consistency
 A wide range of power supply voltage
 High reliability
 Working with N pole

Applications
 The brushless DC motor, DC fans, DC water pump
 The home appliance control panel
 speed sensor, position detecting, counting
 The auto ignition
 safety alarm device

Absolute Maximum Ratings （TA=25℃）
Supply Voltage VCC••••••••••••••3.8-30V Operating Temperature Range TA ••••••••-40～150℃
Output Current IO•••••••••••••••••50mA Storage Temperature RangeTS ••••••••••••••••-65～150℃-

Precautions of OH Series Hall ICS
Hall ICs are sensitive devices which performance could be influenced in some extent by magnetic, optical, thermal and mechanical stress.
1) A pull-up resistor RL should be connected between the power supply (Vcc) and the output (Vout) since most of hall ICs are open collector output (OC output) circuits, such as OH44E, OH137, OH513, OH543. Hall ICs with Build-in Resistor are not necessary to add one, for example OH921.
2) Avoid reversing the power supply (Vcc) and the output (Vout) as well as no overload use. Be careful of the burn and damage caused by instant large current and instantaneous high voltage.
3) The Protection circuit should be added in the test circuits of hall ICs, such as large capacitor and a voltage stabilizing diode, which could absorb the effects of the external circuit and power fluctuation.
4) Try to minimize the mechanical stress applied to the device and leads during the installation, especially on the pins where close to the root of the device when bending shaping etc.
5) Strictly regulate the welding temperature and time. When manual welding, the temperature of soldering iron shall not exceed 260℃and time should be less than 3 seconds.
6) When designing, please fully consider the influence factors of temperature, magnetic field attenuation, the movement way, etc. 加拿大BW四合一气体检测仪销售维修代做计量橡胶炭黑分散度测定仪硫化胶分散测定仪测氡仪美国1027型便携式测氡仪可连续氡检测GC112A气相色谱仪色谱分析仪 OilTech121手持式测油仪BOD-220A-2微生物电极法BOD快速测定仪

加拿大BW四合一气体检测仪销售维修代做计量

型号：MC-4
品牌：BW
加拿大BW公司是一家数十年专业生产气体检测仪器的高科技制造商，被美国霍尼韦尔收购整合后，更是实现强强联手，优势资源共享，凭借BW自身积累多年的技术优势以及霍尼韦尔强大的营销网络，产品很快被广大中国工业企业熟知。煤炭，化工，食品，制药，市政环卫，无处不散布着bw气体检测仪的脚印。bw市面上最常见的气体检测仪种类有GAXT系列单一气体检测仪，MC2-4（MC2-XWHM-Y-CN）标准款四合一气体检测仪，MAX XT（XT4）内置泵式四合一气体检测仪。
加拿大BW MC2-4四合一气体检测仪的特点:
1，2，3或4种气体同时检测
简单的单按钮操作满足多种气体的多面性
令人难以置信的纤巧，佩戴感觉舒适
异常低的拥有成本
检测：H2S，CO，O2，LEL%
GasAlertMicroClip 纤小精制，为防止有害气体提供了经济实惠的保护。借助简单的单按钮操作，多种气体探测器提供最大程度的易用性，并大大缩短了用来培训用户的时间。GasAlertMicroClip 与 BW 的 MicroDock II 自动测试和校准系统完全兼容
加拿大BW MC2-4四合一气体检测仪的标准功能：
不间断 LCD 显示实时气体浓度
设计小巧而轻便，佩戴感觉舒适
防水
简单的自动校准程序；与 BW MicroDock II自动测试和校准站兼容
启动时进行传感器、电池状态、电路完好性和声音/视觉警报的全功能自检
明亮的广角可视警报光柱
内置式防震外罩
加拿大BW MC2-4四合一气体检测仪的规格:
大小：4.2 x 2.4 x 1.1 英寸/10.8 x 6.0 x 2.7 厘米
重量：5.7 盎司/160 克
温度：-4 至 +136°C / -20 至 +58°C
湿度：0% - 95% 相对湿度（非冷凝）
警报：视觉、振动和声音（95 分贝）- 低、高、STEL、TWA、OL（超限）测试启动时的声音/视觉警报、传感器、电池和线路（不间断）
泵兼容 Sampler 电动采样泵
电池寿命12 小时（典型）；3 小时内即可充满电
作为加拿大BW多年资深合作伙伴，我公司除了销售气体检测仪外，还常年提供气体检测仪快速检测，快速修理，快速标定，传感器探头平价更换，以及CMA计量院代办服务。请来电咨询010-57133453/13581688230，杨经理。或者来公司购买维修，公司位于北京丰台区南三环刘家窑，交通便利，地铁5号线刘家窑站B口即到。