产品介绍
YJA系列氨压力表YJA
Series Ammonia Pressure Meter
简介
氨压力表为氨专用仪表，用于测量对普通碳钢、合金结构钢、澳氏体类不锈钢及锡铅合金钎焊料无腐蚀作用，非结晶和凝固的氨气、氨液介质的压力。主要适用于化肥生产过程中设备或其他中用来测量氨的液体、气体或其混合物等的压力。
Brief Introduction:
Ammonia pressure meter is a special meter for ammonia, used to measure various non-crystallized and solidified medium that have no corrosive action on common carbon system steel, alloy structural steel, Austenite stainless steel, or tinsel bar solder, principally applicable for measuring pressures of liquefied ammonia, gas, or other mixtures in cooling equipments in chemical fertilizer production.
结构原理
仪表由导压系统（包括接头、弹簧管等）、传动机构、指示装置和外壳等组成。
当被测介质作用于弹簧管时，其管端产生相应的弹性变形——位移，经传动机构放大后，由指示装置在度盘上把被测压力指示出来。
Configuration principle
This instrument consists of pressure pilot system (comprising joints, spring pipe, and so on), running gear, indicating device, and outer housing, etc.
When the medium acts on the spring pipe, corresponding elastic deformation or displacement occurs at the pipe end accordingly, which is amplified through running gear and displayed in indicating devices dial as the pressure being tested.
型号表示
标记示例：YJA-150ZT
轴向前边氨用压力表，安装形式为轴向盘装式。
产品电脑编码详见《氨用压力系列仪表选型指南》。
Model designations
Mark example: YJA-150ZT
For axial front pressure meter for ammonia, the installation form is dial-mounted in axial direction. For further information on computer code, please see the “Guide for type selection of ammonia series instruments and meters”
主要技术参数
- 精确度：2.5级，1.6级
- 使用环境条件：-40～70℃，相对湿度不大于90%
- 温度影响：不大于0.4%/10℃（使用温度偏离20±5℃）
Principal technical parameters:
- Accuracy: 1.6, 2.5 grades
- Environmental condition in use: -40～70℃, relative humidity less than 90%
- Temperature affect: no greater than 0.4%/10oC (with temperature departure of 20±5oC)
型号规格 Types and specifications
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型号
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精度 1.6
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压力范围（MPa）
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YJA-100、100Z、100ZT
YJA-150、150Z、150ZT
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0～0.1；0～0.16；0～0.25；0～0.4；0～0.6；0～1；0～1.6；0～2.5；0～4；0～6；0～10；0～16；0～25；0～40；0～60
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订货须知:
订货时须注明：型号、名称、精确度等级、测量范围。如特殊要求，订货时请注明技术要求。
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