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工业型压力变送器技术参数
测量介质 : 液体或气体（与接触材质兼容）
整体材质 : 膜片 316L不锈钢（接触）
过程连接 304 不锈钢 （接触）
外壳 压铸铝
密封件 丁腈橡胶 （接触）
压力量程 : -100kPa～0 ～100MPa（详见量程选型表） 压力方式 : 表压、绝压、负压
输出信号 : 4～20mA 、RS485（标准Modbus-RTU协议）、
（0 ～10VDC 、0 ～5VDC、1 ～5VDC 定制）供电 电压 : 8-30VDC常规
24VDC本质安全型/粉尘本质安全型
12-30VDC常规（带显示或输出0～10VDC）精度 等级 : 0.1%FS （量程≥ 100kPa定制）
0.25%FS （量程≥ 100kPa默认）
0.5%FS（10kPa≤量程＜100kPa默认） 1%FS（量程＜10kPa默认）
表头显示精度0.5级、数码管（LED）显示工作 条件 : 介质温度 -40～85℃
环境湿度 0%～95%RH（无冷凝无结露）
环境温度 -40～85℃（防爆环境-20～40℃) 温度补偿 : -10～70℃（精度为0.25%FS、0.5%FS 、1%FS）
-40～80℃（精度为0.1%FS ）防
爆类型 : 隔爆型 Ex d Ⅱ C T6 Gb
本质安全型 Ex ia ⅡC T6 Ga（限电流输出）
粉尘本质安全型 Ex iaD 20 T80℃（限电流输出）
注 ：本质安全必须经由安全栅或本安电源供电抗震
典型应用
石油和天然气行业
化工和石化行业
能源工业 g重工业
工业型压力变送器产品特点
a) 采用膜片隔离技术
b) 集成芯片、宽电压供电
c) 安装方便、本安防爆
d) 截频设计、抗干扰能力强、防雷击
e) 限流、限压、反接保护（限电流输出）
f) 精度高、稳定性好、响应速度快、耐冲击
性能 : 10g(20...2000Hz)
过载能力 : 200%满量程或120MPa（取最小值）
响应频率 : 模拟信号输出10-2400Hz、数字信号输出10Hz稳
定性能 : ± 0.1% FS/年
温度漂移 : ± 0.01%FS/℃（温度补偿范围内）整
体重量 : ≈ 900g
防护等级 : 标准型 IP65
隔爆型 IP66
本质安全型 IP65
粉尘本质安全型 IP66
注：以上防护等级是指电气连接完整后所达到功率
范围 : 电流型≤ 0.02Us(W)
数字型≤ 0.015Us(W)
电压型≤ 0.008Us（W）
注:Us=供电电压
负载特性 : 电流型负载≤ {（Us-7.5）÷ 0.02 （ Us=供电电压） }Ω 电压型负载≥ 100k Ω
负载电阻 （4～20）mADC
型号规格代码表
型号
规格代码
说明
XN208
···································································
通用型压力变送器
类型
P
Y
W.....................................................................
Q......................................................................
K .
通用
液位
高温
齐平膜
差压
卡盘
输出信号
S1 ···································································
S2·····································································
S3·····································································
4~20mA 两线制
RS485通讯
定制
测量量程
18·····································································
19·····································································
20·····································································
21·····································································
22·····································································
23·····································································
量 程： 0~35Kpa
量 程： 0~100Kpa
量 程： 0~250KPA
量 程： 0~1MPA
量 程： 0~2.5MPA
其他量程定制
外壳材质
W..................................................................
铸铝
过程连接材质
G1 ··································································
G2····································································
不锈钢
过程连接尺寸
M2 ··································································
M1··································································
G2
··································································
G4 ··································································
D......................................................................
M20*1.5外螺纹
M14*1.5外螺纹
G1/2 外螺纹
G1/4 外螺纹
电气连接
M2..................................................................
M20*1.5
表头显示
S.......................................................................
F.......................................................................
有显示
无显示
精度等级
A.......................................................................
B.......................................................................
C.......................................................................
0.1%
0.2%
0.5%
防爆类型
NA...................................................................
K5....................................................................
标准
防爆
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