消防专用液位计

概述：本公司针对液化气、液氨、丙烯、丙烷等易气化测量介质，自主设计研发了一款防气化专用磁性液位计，该液位计主体腔室内设计有消气泡机构，既能有效的消除气泡造成的浮球上下跳跃造成的虚假液位显示，又能保证不影响浮球正常上下移动，是针对目前易气化测量介质液位测量的理想产品。技术参数：测量范围300-15000mm额定温度≤450℃测量精度±5mm介质粘度≤0.02Pa.S公称压力≤42MPa跟随速度≤0.08m/s介质密度≥0.35g/cm3变送输出两线制4-20mA，DC600?负载介质密度差≥0.03g/cm3（测量界位）连接法兰尺寸HG/T20592~20635-2009,DN20,PN2.5若采用其他法兰请用户在订货时注明。选型表：

合成氨专用液位计Synthesis ammonia special fluid level gauge一、产品简介 Product Introduction 本品为涉及一种在化肥厂氨分离器或冷交换器上使用的控制分离器或冷交换器内液态氨液位的合成氨专用液位计 This product is involving the synthesis ammonia special fluid level gauge used on the ammonia separator or cool exchanger of fertilizer plant to control the liquid ammonia level inside the separator or exchanger. 合成氨专用液位计背景技术：目前在合成氨车间使用的液位计，均采用模拟电路控制技术，其主要缺点有以下几点：For the background technology of synthesis ammonia special fluid level gauge, at present the fluid level gauges used in the synthetic ammonia workshop are all adopting the analog circuit control technology, but it shall also have the disadvantages as following: 1.首次安装液位计，首次校准时，零点和量程值相互影响，必须反复调整若干次，才能安全校准。While installing the level gauge at first time, to make first calibration, the zero point and measuring range value shall impact each other, it must to adjust several times repeatedly so that to gain the safe calibration 2.电路板损坏现场更换时，由于设备上的液位不容易保持到标准的零点和量程位置，根本无法校准零点和量程位置 While replacing the damaged circuit board, because that the fluid level on the equipment really can not keep at the standard zero point and measuring range position easily, it simply cannot calibrate the zero point and measuring range position 3. 温度漂移大，稳定性差。元器件温漂或者线性差时，模拟电路很难对这些性能修正，造成仪表精度下降和稳定性差 Due to the large temperature drift, the stability is quite poor. Where there’s the temperature drift or linear difference on the component, the analog circuit really can hardly correct these performances, thus causes the decreased instrument accuracy and poor stability 合成氨专用液位计发明目的：本实用新型的目的在于克服现有技术中存在的不足而提供一种精确度高、调教简单、安全可靠、抗干扰性能强、现场更改工作方式灵活方便的合成氨专用液位计 The aim for inventing the synthesis ammonia special fluid level gauge: this new utility model is aiming to overcome the existed deficiency in current technique and then provide a synthesis ammonia special fluid level gauge with higher accuracy, simple adjustment and calibration, safety and reliability, strong anti-interference capability, flexible and convenient means to change work mode on site 本实用新型设计一种在化肥厂氨分离器或冷交换器上用的控制分离器或冷交换器内液态氨液位的合成氨专用液位计，传感器信号输出端与电容电压信号转换电路输入端相连，时钟发生器集成电路与电容电压信号转换电路输入端相连，单片机微处理系统输出端上设有PC机通讯接口和液晶显示接口，单片机微处理系统输入端还连有按键矩阵电路，单片机微处理系统输出端上还连有电压电流转换模块，电压电流转换模块输出输入端口通过两线制模式与24v电源输入端相连，电压电流转换模块输出端为整机提供基准电压，具有精确度高、调校简单、安全可靠、抗干扰性能强、更改工作方式灵活方便的优点。 This new utility model is designated for a synthesis ammonia special fluid level gauge to be used in the ammonia separator or cool exchanger of fertilizer plant for controlling the liquid ammonia level in the separator or cool exchanger, the output end of sensor is connected with the input end of capacitance- voltage signal conversion circuit, clock generator integrated circuit is also connected with the input end of capacitance- voltage signal conversion circuit, the PC communication interface and LED display interface are all set on the output end of the DSP micro processing system, at the output end of DSP micro processing system there also connected with the key matrix circuit, the voltage-current conversion module is also connected with the output end of DSP micro processing system, the input/ output interface of voltage-current conversion module are connected with the input end of 24V power supply via the 2-line system mode, the output end of voltage-current conversion module can provide the whole machine with the reference voltage, it has the advantages such as high accuracy, simple adjustment and calibration, safety and reliability, strong anti-interference capability, flexible and convenient means to change work mode on site 二、合成氨专用液位计特点 Features of synthesis ammonia special fluid level gauge 1.按键设置零点和量程，操作简单； To set the zero point and measuring range by the keys, the operation is quite simple 2.在现场输入任意两点液位真值，自动计算和储存零点和量程值 To input the real fluid level value between any two points on site, it can calculate and store the zero point and measuring range automatically 3.采用数字修正处理技术，精度高，稳定性好。By adopting the digital adjustment processing technology, it has the high accuracy with good stability. 三、产品图片 Product photo 四、合成氨专用液位计技术参数 The technique specification for synthesis ammonia special fluid level gauge Measuring range: optional within the range of 300-5000mm 测量范围：300-5000mm范围内任意选用Working pressure 工作压力：0-40MPaOutput signal 4-20mA can be overlapped with HART 输出信号：4-20mA可叠加HARTAccuracy grade 精度等级：0.5% FS；Explosion-proof symbol: 防爆标志：ExibllBT5 Gb Installation mode: flange mounting安装方式：法兰连接Applicable medium: liquid ammonia, methanol etc. 适用介质：液氨、甲醇等介质； 五、安装示意图 Installation diagram 六、产品选型 Product selection FY2BN合成氨液位计选型表 Selection table for synthesis ammonia fluid level gauge 产品Product类型 Type1合成氨专用（耐压22MPa)≤200℃For synthesis ammonia only (pressure resistance 22MPa) ≤200℃2合成氨专用（耐压32MPa)≤200℃For synthesis ammonia only (pressure resistance 32MPa) ≤200℃输出Output信号SignalA4-20mA信号输出，液晶显示4-20mA signal output, LED display B4-20mA+HART协议，液晶显示4-20mA + HART protocol, LED display代码Code测量范围Measuring rangeL1500mmL21000mmL()特殊规格请在括号内填写Special requirement please fill in the brackets代码Code 接液材质Fluid receiving materialD请在订货时备注Please specify while ordering 连接方式Connection modeF法兰安装(需提供公称直径）Flange connection (nominal diameter shall be provided)M螺纹安装（需提供尺寸）Screw thread mounting (dimension shall be provided)特殊要求请备注Special request please leave remark accordingly.合成氨液位计Synthesis ammonia fluid level gauge 七、Ordering instructions: 测量范围 Measuring range工作压力 Working pressure连接方式 Connection mode 测量介质 Measuring medium

上海铭控：消防压力传感器 消防专用压力计内容简介： 该系列无线数字压力表是一款电池供电的低功耗/无线数字输出的数字压力表，可选配GPRS、LORa-iot、NB-iot无线通讯协议。 内置激光焊接型压力传感器，能够准确的实时显示压力，并且具有精度高、长期稳定性好的特点。 该款数字压力表配备大尺寸LCD液晶显示，内置MCU,低功耗设计,实现将现场的管道压力上传到云端的无线传输. 产品采用304接头和全铸铝外壳，通过本安防爆认证。抗震性好，能够测量气体、液体、油等对不锈钢无腐蚀的介质。 产品功能实用，实时显示当前压力，上传速率1分钟-24小时可调，可预设高低压报警点，具有事件上发和定时上发两种功能。 特别适合消防水管网、消防末端、消防泵房、城市供水、石油化工等需要无人值守、远程监控的领域。上海铭控：消防压力传感器 消防专用压力计技术特点：☆ GPRS/LORaWAN/NB-iot可选☆ TCP/UDP/MQTT/Coap多种协议可选☆ 定时报文+事件报文的组合方式，保证及时报警☆ 支持蓝牙配置及远程参数配置，降低维护成本☆ 铸铝防爆型外壳，坚固耐用，产品美观☆ 上发间隔，按键可调，3分钟~24小时可设☆ 低功耗设计,3.6V锂电池供电，可支持上发超过60000次☆ 产品认证:CE认证 ☆ 防爆认证 Exib IIBT4☆ 防护等级 IP67（已认证）上海铭控：消防压力传感器 消防专用压力计参数指标：压力量程 真空量程：(0~-100)kPa 复合量程：(-0.1~0.1)MPa (-0.1~0.25)MPa (-0.1~0.4)MPa (-0.1~0.6)MPa (-0.1~1.0)MPa (-0.1~2.5)MPa (-5~5)kPa (-10~10)kPa (-25~25)kPa (-50~50)kPa 微压量程：(0~5)kPa (0~10)kPa (0~25)kPa (0~50)kPa (0~100)kPa 常规量程：(0~160)kPa (0~250)kPa (0~400)kPa (0~600)kPa (0~1)MPa (0~1.6)MPa ...(0~100)MPa 安装接口 M20*1.5 G1/2 G1/4等标准螺纹精度等级 0.5级 1.0级显示位数 4位LCD显示背 光 白色背光供 电 3.6V （锂电池，用户可自行更换） 也可选220V或者12V供电测量介质 水、油、气体对不锈钢无腐蚀的介质常规功能： 1.开机/关机 2.一键清零 3.上发状态查询 4.通讯强度查询 系统功能： 1.上发频率可调 2.高低压报警值可调 3.传感器采集频率可调 4.IP地址及端口可调使用环境： 测试温度：(-20～60)℃； 存储温度：(-40～85)℃ 相对湿度：＜85%；