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关 键 词：朝阳远传密度继电器
行 业：机械 仪器仪表 计量标准器具
发布时间：2023-07-20
一般性提示
Common tips
A. 功能原理
Working principle
电接点式SF6气体密度继电器是改型的带信号输出的压力表。SF6气体密度继电器实现了测量和开关功能的一体化。温度对SF6气体密度的影响由一个补偿系统平衡。 SF6气体密度继电器是针对每一个设备特殊设计的 (SF6气体的纯度, 校验压力, 开关点...)。
Snap-action contact SF6 gas density monitor is a modified pressure gauge with signal output. SF6 Gas density monitor integrates measurement and switching functions. The impact of temperature on SF6 gas density is balanced by a compensation system. SF6 Gas density monitor is specially designed for each device (SF6 gas purity, calibration pressure, switch points …).
SF6气体远传密度继电器既有传统的报警、闭锁接点输出，又有电子式数字信号输出。
SF6 remote gas density monitor has not only traditional alarm and locking
contact output but also digital signal output.
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。
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.
B.电气接口
Electrical interface
接线必须由经过培训的人员操作 .接线分布和开关功能都在仪表型号牌上给出,并注明了接线柱和接地柱.规定供电电线必须考虑仪表的大电流需求量并符合 IEC227 或 IEC245 标准.
The wirings shall be performed by professionally trained personnel. Wiring distribution and switching functions are displayed on the instrument type plate with terminal binding posts and ground pole also indicated. The specifications of power line must allow for the maximum current requirement of the instrument and comply with IEC227 or IEC245.
订货说明
Order instructions
型号/数量/量程/开关动作点/接口尺寸/其它特殊事项
Model/quantity/measuring range/switch action point/interface dimensions/other special issues
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