DHXMJN00T1,DHXMJP13T1,DHXMJK12T2,DHXMJI03T3,DHXMJI13T4,DHXMJN42T5,智能流量积算仪
DHXMJP00T1,DHXMJK00T1,DHXMJE00T1,DHXMJI00T1,
DHXMJN10T1,DHXMJP10T1,无锡昌林，DHXMJK10T1,DHXMJE10T1,DHXMJI10T1,
DHXMJN20T1,DHXMJP20T1,DHXMJK20T1,DHXMJE20T1,DHXMJI20T1,
DHXMJN30T1,DHXMJP30T1,DHXMJK30T1,DHXMJE30T1,DHXMJI30T1,
DHXMJN40T1,DHXMJP40T1,DHXMJK40T1,DHXMJE40T1,DHXMJI40T1,
1．概述
本仪表是一个以微处理器为基础、功能齐全、有通讯能力、能与各种流量变送器、传感器配合使用的通用流量积算仪。由于进行了周密的可靠性设计，使得仪表具有良好的电磁兼容性和可靠性。
〖仪表能对下列流体进行准确的联机运算〗
蒸 汽 …… 根据表内存贮的水蒸汽表测量蒸汽的质量流量和热量流量；
一般气体 …… 温度、压力补偿测量标准体积流量和质量流量，包括湿气体的干部分流量计算和“压缩系数”（Z）补偿；
液 体 …… 温度补偿或密度补偿测量标准体积流量和质量流量.
2．功能特点
■ 可接受以下几种输入信号
（1） 测定流量输入信号
模拟流量信号（Al1）：差压或线性流量信号（4-20mA DC或0-10mA DC）
频率流量信号（f）：1-10，000Hz
（2） 测定压力/密度输入信号（Al2）
压力或密度变送器模拟信号（4-20mA DC或0-10mA DC）。
（3） 测定温度输入信号
热电阻Pt100或者K、E分度热电偶信号。
Al1、Al2模拟输入信号可分别是4-20mA DC或0-10mA DC，可编程无需变更硬件。
■ 可提供变送器+24V DC、+12V DC供电电源（有短路保护功能），以简化系统、节省投资。
■ 可提累积量，瞬时量，温度，压力等的上下限报警功能，以及累积量脉冲输出功能。
■ 简单的容错功能：温度、压力/密度补偿测量信号异常时，用对应的手动设定值进行补偿运算。
■ 仪表时钟和定时自动抄表功能为计量管理带来了方便。
■ 丰富的自诊断功能使仪表更易使用和维护。
■ 密码设定可防止未经授权的人员改变已设定的数据。
■ 仪表内部不设任何电位器、编码开关等可调器件，从而提高仪表的耐振性、稳定性和可靠性。
■ 特殊设计的WDT电路、上电复位电路和断电数据保护电路确保仪表通电运行正常，断电数据不丢失。断电数据保护不用后备电池，保护时间10年。
■ 能与上位计算机进行数据通讯，组成能源计量网络系统。
■ 除了常规的温度补偿、压力补偿、密度补偿、温度压力补偿外，该表还可对：
·一般气体的“压缩系数”（Z）进行补偿；
·流量系数非线性进行补偿,协议流量上下限功能；
·差压式流量计流束膨胀系数进行补偿；
·特别是该表在蒸汽流量测量、湿气体的干部分流量测量方面十分完善。
■ 采用组态方式工作，一台流量积算仪具备以上所有功能。对用户来说，无需知道工况参数、传感器参数就可选用本表解决各种流量测量问题。
3．主要技术指标
■ 测定输入信号
（1） 测定流量输入信号
模拟流量信号（Al1）：
4-20mA DC或0-10mA DC，键盘设定选择。
提供+24VDC外供电源，用于二线制4-20mADC变送器供电，负载能力为30mA,带过流保护。
频率流量信号（f）：
波形：矩形、正弦、三角波形。
幅值：低电平0-2V，高电平5-24V（可根据用户要求）。
频率：1-10，000Hz。
输入电阻：5KΩ。
提供+24VDC和12VDC独立外供电源，用于频率式流量变送器供电，频率流量信号输入与主机隔离, 二者选一,保证负载能力为100mA,带过流保护。
（2） 测定压力/密度输入信号（Al2）
4-20mA DC或0-10mA DC，键盘设定选择。
提供+24VDC外供电源，用于二线制4-20mADC变送器供电，负载能力为30mA,带过流保护。
（3） 测定温度输入信号
热 电 阻；Pt100分度 三线制输入，单线电阻≤10Ω
热 电 偶：K、E分度等
温度范围：0-500℃
■模拟变送输出信号
4-20mA DC或0-10mA DC，键盘设定选择,可以选择流量,压力或温度等信号变送输出.
负载电阻：0-500Ω（4-20mA DC）
0-1000Ω（0-10mA DC）
数据更新周期：≤0.3S
■ 报警继电器触点容量:AC220V 3A或24V 5A(阻性负载)
■ 基本误差
频率信号输入：读数的0.1%
温度信号输入：±0.3℃（t≤300℃时）
读数的0.2%（t﹥300℃时）
电压电流输入：满量程的±0.1%
电 流 输 出：满量程的±0.2%
补偿后流量显示；满量程的±0.2%
■ 补偿范围
蒸汽： 压力 0.1-22MPa abs
温度 0-374℃（饱和蒸汽）100-560℃（过热蒸汽）
一般气体： 压力 任意
温度 -200-560 ℃
■ 通讯接口：EIA RS-485串行接口（光电隔离）
通讯速率：可选（9600、4800波特率） 传输介质；双绞线
■ 断电数据保护时间：10年
■ 交流电源：220V+10%-15%，50Hz±5% 功耗：小于8W
■ 直流电源：24V
+10%-15% 功耗：小于8W
4.流量积算仪选型表：
|
型 号
|
说 明
|
| DHXMJ |
× |
× |
× |
× |
× |
× |
× |
× |
|
| 补偿信号类型 |
N |
无补偿 |
| P |
热电阻PT100，压力变送器 |
| K |
热电偶K分度，压力变送器 |
| E |
热电偶E分度，压力变送器 |
| I |
温变4～20 mA，压力变送器 |
| 变送输出 |
0 |
无 |
| 1 |
4～20 mA |
| 2 |
1～5V |
| 3 |
0～10mA |
| 4 |
0～5V |
| 报警输出功能 |
0 |
无 |
| 1 |
有二位报警,无累积量脉冲输出 |
| 2 |
无报警, 有累积量脉冲输出 |
| 3 |
有二位报警,有累积量脉冲输出 |
| 通讯功能 |
|
无 |
| T1 |
com1为RS485，无com2 |
| T2 |
com1为RS232，无com2 |
| T3 |
com1，com2都为RS485 |
| T4 |
com1，com2都为RS232 |
| T5 |
com1为RS485，com2为RS232 |
| 特殊功能 |
|
无 |
| R |
带无纸记录功能 |
| 供电方式 |
|
交流220V |
| D |
直流24V |
| 外形尺寸（宽*高*深） |
0 |
160 mm×80 mm×88mm（普通端子） |
| 1 |
80 mm×160 mm×88mm（普通端子） |
| 2 |
96 mm×96 mm×112mm（普通端子） |
| A |
160 mm×80 mm×150mm（插拔端子） |
| B |
80 mm×160 mm×150mm（插拔端子） |
|
注:
1.流量输入信号可选择电流输入或电压脉冲输入，且分别带有隔离的24V和12V配电；
2.当外形尺寸选择为普通端子时，com2和累计量脉冲输出功能只能选其一；
3.在补偿信号类型选择时，若选择为插拔端子，可以编程切换所列温度信号类型，若选择为普通端子，
在 P(K，E)与 I 之间切换时需要使用内部跳线。
|
DHXMJN01T1,DHXMJP01T1,DHXMJK01T1,DHXMJE01T1,DHXMJI01T1,
DHXMJN11T1,DHXMJP11T1,DHXMJK11T1,DHXMJE11T1,DHXMJI11T1,
DHXMJN21T1,DHXMJP21T1,DHXMJK21T1,DHXMJE21T1,DHXMJI21T1,
DHXMJN31T1,DHXMJP31T1,DHXMJK31T1,DHXMJE31T1,DHXMJI31T1,
DHXMJN41T1,DHXMJP41T1,DHXMJK41T1,DHXMJE41T1,DHXMJI41T1,
DHXMJN02T1,DHXMJP02T1,DHXMJK02T1,DHXMJE02T1,DHXMJI02T1,
DHXMJN12T1,DHXMJP12T1,DHXMJK12T1,DHXMJE12T1,DHXMJI12T1,
DHXMJN22T1,DHXMJP22T1,DHXMJK22T1,DHXMJE22T1,DHXMJI22T1,
DHXMJN32T1,DHXMJP32T1,DHXMJK32T1,DHXMJE32T1,DHXMJI32T1,
DHXMJN42T1,DHXMJP42T1,DHXMJK42T1,DHXMJE42T1,DHXMJI42T1,
DHXMJN03T1,DHXMJP03T1,DHXMJK03T1,DHXMJE03T1,DHXMJI03T1,
DHXMJN13T1,DHXMJK13T1,DHXMJE13T1,DHXMJI13T1,
DHXMJN23T1,DHXMJP23T1,无锡昌林，DHXMJK23T1,DHXMJE23T1,DHXMJI23T1,
DHXMJN33T1,DHXMJP33T1,DHXMJK33T1,DHXMJE33T1,DHXMJI33T1,
DHXMJN43T1,DHXMJP43T1,DHXMJK43T1,DHXMJE43T1,DHXMJI43T1,
DHXMJN00T2,DHXMJP00T2,DHXMJK00T2,DHXMJE00T2,DHXMJI00T2,
DHXMJN10T2,DHXMJP10T2,DHXMJK10T2,DHXMJE10T2,DHXMJI10T2,
DHXMJN20T2,DHXMJP20T2,DHXMJK20T2,DHXMJE20T2,DHXMJI20T2,
DHXMJN30T2,DHXMJP30T2,DHXMJK30T2,DHXMJE30T2,DHXMJI30T2,
DHXMJN40T2,DHXMJP40T2,DHXMJK40T2,DHXMJE40T2,DHXMJI40T2,
DHXMJN01T2,DHXMJP01T2,DHXMJK01T2,DHXMJE01T2,DHXMJI01T2,
DHXMJN11T2,DHXMJP11T2,DHXMJK11T2,DHXMJE11T2,DHXMJI11T2,
DHXMJN21T2,DHXMJP21T2,DHXMJK21T2,DHXMJE21T2,DHXMJI21T2,
DHXMJN31T2,DHXMJP31T2,DHXMJK31T2,DHXMJE31T2,DHXMJI31T2,
DHXMJN41T2,DHXMJP41T2,DHXMJK41T2,DHXMJE41T2,DHXMJI41T2,
DHXMJN02T2,DHXMJP02T2,DHXMJK02T2,DHXMJE02T2,DHXMJI02T2,
DHXMJN12T2,DHXMJP12T2,无锡昌林，DHXMJE12T2,DHXMJI12T2,
DHXMJN22T2,DHXMJP22T2,DHXMJK22T2,DHXMJE22T2,DHXMJI22T2,
DHXMJN32T2,DHXMJP32T2,DHXMJK32T2,DHXMJE32T2,DHXMJI32T2,
DHXMJN42T2,DHXMJP42T2,DHXMJK42T2,DHXMJE42T2,DHXMJI42T2,
DHXMJN03T2,DHXMJP03T2,DHXMJK03T2,DHXMJE03T2,DHXMJI03T2,
DHXMJN13T2,DHXMJP13T2,DHXMJK13T2,DHXMJE13T2,DHXMJI13T2,
DHXMJN23T2,DHXMJP23T2,DHXMJK23T2,DHXMJE23T2,DHXMJI23T2,
DHXMJN33T2,DHXMJP33T2,DHXMJK33T2,DHXMJE33T2,DHXMJI33T2,
DHXMJN43T2,DHXMJP43T2,DHXMJK43T2,DHXMJE43T2,DHXMJI43T2,
DHXMJN00T3,DHXMJP00T3,DHXMJK00T3,DHXMJE00T3,DHXMJI00T3,
DHXMJN10T3,DHXMJP10T3,DHXMJK10T3,DHXMJE10T3,DHXMJI10T3,
DHXMJN20T3,DHXMJP20T3,DHXMJK20T3,DHXMJE20T3,DHXMJI20T3,
DHXMJN30T3,DHXMJP30T3,DHXMJK30T3,DHXMJE30T3,DHXMJI30T3,
DHXMJN40T3,DHXMJP40T3,DHXMJK40T3,DHXMJE40T3,DHXMJI40T3,
DHXMJN01T3,DHXMJP01T3,DHXMJK01T3,DHXMJE01T3,DHXMJI01T3,
DHXMJN11T3,DHXMJP11T3,DHXMJK11T3,DHXMJE11T3,DHXMJI11T3,
DHXMJN21T3,DHXMJP21T3,DHXMJK21T3,DHXMJE21T3,DHXMJI21T3,
DHXMJN31T3,DHXMJP31T3,无锡昌林，DHXMJK31T3,DHXMJE31T3,DHXMJI31T3,
DHXMJN41T3,DHXMJP41T3,DHXMJK41T3,DHXMJE41T3,DHXMJI41T3,
DHXMJN02T3,DHXMJP02T3,DHXMJK02T3,DHXMJE02T3,DHXMJI02T3,
DHXMJN12T3,DHXMJP12T3,DHXMJK12T3,DHXMJE12T3,DHXMJI12T3,
DHXMJN22T3,DHXMJP22T3,DHXMJK22T3,DHXMJE22T3,DHXMJI22T3,
DHXMJN32T3,DHXMJP32T3,DHXMJK32T3,DHXMJE32T3,DHXMJI32T3,
DHXMJN42T3,DHXMJP42T3,DHXMJK42T3,DHXMJE42T3,DHXMJI42T3,
DHXMJN03T3,DHXMJP03T3,DHXMJK03T3,DHXMJE03T3,
DHXMJN13T3,DHXMJP13T3,DHXMJK13T3,DHXMJE13T3,DHXMJI13T3,
DHXMJN23T3,DHXMJP23T3,DHXMJK23T3,DHXMJE23T3,DHXMJI23T3,
DHXMJN33T3,DHXMJP33T3,DHXMJK33T3,DHXMJE33T3,DHXMJI33T3,
DHXMJN43T3,DHXMJP43T3,DHXMJK43T3,DHXMJE43T3,DHXMJI43T3,
DHXMJN00T4,DHXMJP00T4,DHXMJK00T4,DHXMJE00T4,DHXMJI00T4,
DHXMJN10T4,DHXMJP10T4,无锡昌林，DHXMJK10T4,DHXMJE10T4,DHXMJI10T4,
DHXMJN20T4,DHXMJP20T4,DHXMJK20T4,DHXMJE20T4,DHXMJI20T4,
DHXMJN30T4,DHXMJP30T4,DHXMJK30T4,DHXMJE30T4,DHXMJI30T4,
DHXMJN40T4,DHXMJP40T4,DHXMJK40T4,DHXMJE40T4,DHXMJI40T4,
DHXMJN01T4,DHXMJP01T4,DHXMJK01T4,DHXMJE01T4,DHXMJI01T4,
DHXMJN11T4,DHXMJP11T4,DHXMJK11T4,DHXMJE11T4,DHXMJI11T4,
DHXMJN21T4,DHXMJP21T4,DHXMJK21T4,DHXMJE21T4,DHXMJI21T4,
DHXMJN31T4,DHXMJP31T4,DHXMJK31T4,DHXMJE31T4,DHXMJI31T4,
DHXMJN41T4,DHXMJP41T4,DHXMJK41T4,DHXMJE41T4,DHXMJI41T4,
DHXMJN02T4,DHXMJP02T4,DHXMJK02T4,DHXMJE02T4,DHXMJI02T4,
DHXMJN12T4,DHXMJP12T4,DHXMJK12T4,DHXMJE12T4,DHXMJI12T4,
DHXMJN22T4,DHXMJP22T4,DHXMJK22T4,DHXMJE22T4,DHXMJI22T4,
DHXMJN32T4,DHXMJP32T4,DHXMJK32T4,DHXMJE32T4,DHXMJI32T4,
DHXMJN42T4,DHXMJP42T4,DHXMJK42T4,DHXMJE42T4,DHXMJI42T4,
DHXMJN03T4,DHXMJP03T4,DHXMJK03T4,DHXMJE03T4,DHXMJI03T4,
DHXMJN13T4,DHXMJP13T4,DHXMJK13T4,DHXMJE13T4,
DHXMJN23T4,DHXMJP23T4,DHXMJK23T4,DHXMJE23T4,DHXMJI23T4,
DHXMJN33T4,DHXMJP33T4,DHXMJK33T4,DHXMJE33T4,DHXMJI33T4,
DHXMJN43T4,DHXMJP43T4,DHXMJK43T4,DHXMJE43T4,DHXMJI43T4,
DHXMJN00T5,DHXMJP00T5,DHXMJK00T5,DHXMJE00T5,DHXMJI00T5,
DHXMJN10T5,DHXMJP10T5,DHXMJK10T5,DHXMJE10T5,DHXMJI10T5,
DHXMJN20T5,DHXMJP20T5,无锡昌林，DHXMJK20T5,DHXMJE20T5,DHXMJI20T5,
DHXMJN30T5,DHXMJP30T5,DHXMJK30T5,DHXMJE30T5,DHXMJI30T5,
DHXMJN40T5,DHXMJP40T5,DHXMJK40T5,DHXMJE40T5,DHXMJI40T5,
DHXMJN01T5,DHXMJP01T5,DHXMJK01T5,DHXMJE01T5,DHXMJI01T5,
DHXMJN11T5,DHXMJP11T5,DHXMJK11T5,DHXMJE11T5,DHXMJI11T5,
DHXMJN21T5,DHXMJP21T5,DHXMJK21T5,DHXMJE21T5,DHXMJI21T5,
DHXMJN31T5,DHXMJP31T5,DHXMJK31T5,DHXMJE31T5,DHXMJI31T5,
DHXMJN41T5,DHXMJP41T5,DHXMJK41T5,DHXMJE41T5,DHXMJI41T5,
DHXMJN02T5,DHXMJP02T5,DHXMJK02T5,DHXMJE02T5,DHXMJI02T5,
DHXMJN12T5,DHXMJP12T5,DHXMJK12T5,DHXMJE12T5,DHXMJI12T5,
DHXMJN22T5,DHXMJP22T5,DHXMJK22T5,DHXMJE22T5,DHXMJI22T5,
DHXMJN32T5,DHXMJP32T5,DHXMJK32T5,DHXMJE32T5,DHXMJI32T5,
DHXMJP42T5,DHXMJK42T5,DHXMJE42T5,DHXMJI42T5,
DHXMJN03T5,DHXMJP03T5,无锡昌林，DHXMJK03T5,DHXMJE03T5,DHXMJI03T5,
DHXMJN13T5,DHXMJP13T5,DHXMJK13T5,DHXMJE13T5,DHXMJI13T5,
DHXMJN23T5,DHXMJP23T5,DHXMJK23T5,DHXMJE23T5,DHXMJI23T5,
DHXMJN33T5,DHXMJP33T5,DHXMJK33T5,DHXMJE33T5,DHXMJI33T5,
DHXMJN43T5,DHXMJP43T5,DHXMJK43T5,DHXMJE43T5,DHXMJI43T5,