产品规格：
产品数量：
包装说明：
关 键 词：齐齐哈尔远传密度继电器
行 业：机械 仪器仪表 计量标准器具
发布时间：2023-07-21
零位补偿区域
Zero compensation area
SF6-气体密度继电器/远传密度继电器带有零位补偿区域。仪表指针在无压力状态下，因为温度的升高或降低，会在零位补偿区域摆动，例如：60℃指针指示在低于零位的零位补偿区域下边缘，从而简单的测量出温度补偿值，当仪表温度降低,指针将移向零位补偿区域的正值区域。
SF6- gas density monitor /remote gas density monitor of this model has a zero compensation area. In the pressure-free state, the pointer swings within the zero compensation area due to temperature rise or fall. For instance, 60℃ pointer stays at the lower edge of zero compensation area below zero position and the temperature compensation value can be calculated in a simple way. When the instrument temperature falls, the pointer will move to a positive value of zero compensation area.
安装
Installation
A．机械接口
Mechanical interface
一般仪表常用的技术性规范这里也使用 (如:En837-2),旋转安装时所用的力不允许直接作用到表壳或接线盒上,而是通过合适的工具作用到扳手面上.
Technical codes (e.g., En837-2) applicable to ordinary instrumentation also apply here. The force applied for rotation installation shall not directly act upon the instrument housing or terminal box but act upon the wrenching face through a suitable tool.
使用和维护
Use and maintenance
密度继电器/远传密度继电器应垂直安装，用在室外的密度继电器/远传密度继电器应避免阳光直射到仪表上，好在仪表上加装防护罩。
Gas density monitor/remote gas density monitor shall be installed upright. For a gas density monitor used outdoors, direct exposure to sunlight is not allowed, and it is advisable to use a shield.
密度继电器/远传密度继电器安装部位应能较真实地反映设备内气体的温度。
Gas density monitor/remote gas density monitor shall be erected at a proper position to reflect the temperature of gas in relevant equipment.
用肥皂水浸湿的擦布清洁仪表，要清洁接线盒或插头时要先把电源断开，再接通电源前确保所有部件不潮湿。
Clean the instrument with a wiping cloth soaked in soap water. Cut off the power supply before cleaning the terminal box or plugs. Make sure that all components are dry before turning on the power again.
投诉/更换/修理
Complaint/replacement/repair
售后服务时请给出生产编号和产品型号,生产编号印在表盘上,产品型号印在标牌上。
At customer service, please provide with the production number and product model. The production number is printed on the dial, while the product model is printed on the nameplate.
SF6-气体密度继电器/远传密度继电器必须长时间恒温才能达到温度补偿作用(至少两小时) 。
偿作用(至少两小时) 。
SF6- gas density monitor/ remote gas density monitor must be kept in constant temperature for a long time (at least two hours) so as to achieve temperature compensation.
只有厂家可以进行维修,不允许开仪表,否则会使显示和开关点产生误差。
No one other than the manufacturer is allowed to disassemble the instrument for fear that any error may occur to the display and switch point.
数据处理：
温度：Temperature = ( Temperature High | Temperature Low)/100 ℃
例：Temperature High=0xF6；Temperature Low=0x05
Temperature = 0xF605/100 = -25.55 ℃
压力：Pressure = ( Pressure High | Pressure Low)/1000 MPa
例：Pressure High = 0x12，Pressure Low = 0x34
Pressure = 0x1234/10000 = 0.4660 MPa
密度：Density = ( Density High | Density Low)/1000 MPa
例：Density High=0x56；Density Low=0x78
Density = 0x5678/10000 = 2.2136MPa
返回的温度、压力、密度数据为2字节有符号整数。
密度以对应20℃下的压力P20表示，单位MPa.
压力和密度用压力表示，若转化为相对压力，减去当地大气压。
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