美国UE指定总压力开关微压12系列12SLSNP312SHSNP4（U.S. UE designates China general agent pressure switch micro pressure 12 series 12SLSNP3 12SHSNP4 ）

U.S. UE designates domestic general agent pressure switch micro pressure 12 series 12SLSNP3 12SHSNP4  Summary  12 series switches are especially suitable for use in places with limited space and dangerous environments. The momentary switch and disc spring assembly make it have good anti-vibration ability and can effectively prolong the service life of the switch. The 316 stainless steel case and hermetically sealed switch provide exceptional protection and corrosion resistance. Suitable for a variety of hazardous locations, the 12 series has been used in a wide range of applications from offshore oil rigs to rotating equipment. It can replace the American SOR675 series differential pressure switch and micro pressure switch~  Performance features Passed the  UL, cUL and ATEX certifications suitable for explosion-proof places in Zone 1 conforms to CE standards ● According to ANSI/ISA12.27.01  double-layer sealing ●The wetted parts of the pressure switch meetNACE MR -0175 standard ● Instantaneous and disc springs ensure the product ’s vibration resistance and stability and can  effectively prolong its service life ● Sensing material can be selected from Hastelloy and Monel®  to be suitable for corrosive media ● Available Choice of pressure ports resistant to medium and high pressure ● Mounting brackets are suitable for flip-chip applications ● 72-inch external wiring ● 3-year warranty   applications Triple approval (UL, cUL and ATEX listed) means the Series 12 meets the demanding requirements of critical applications in hazardous areas. In addition, the double-layer sealing of the 12 series complies with ANSI/ISA12.27.01, and the double-layer sealing ensures the absolute isolation of flammable or combustible liquids from the electrical and the outside world. It can be installed and used in areas with limited space. All the metal  parts of the wetted parts are 316 stainless steel and conform to NACE MR-0175, and  the protection level of 4X ensures its long-term  performance in harsh environments.  Technology  Inside the Series 12 is a Belleville spring assembly. This spring is a small conical washer through which it  transmits pressure to the 1 or 5 amp hermetic microswitch. Its 'snap action' provides quick,  clear contact delivery. The Belleville springs snap to actuate when pressure is applied and return when depressurized.  Advantages:  ● Setpoint Stability: This switch is suitable for use in challenging environments, such as those subject to vibration and temperature changes  . Additionally, minimal moving parts reduce sensor fatigue, increasing its  lifespan and accuracy.  ● Vibration resistance: The back pressure of the electrical switch helps to reduce the frequent action of the contacts.  ● Small size: The disk spring has a simple appearance, but it can transmit a  large , resulting in its compact design.  ● Dead zone: In order to minimize the dead zone, the set point should be selected at the high end of the adjustable pressure range.  Standard  storage temperature -58° to 203°F (-50 to 95°C)  Operating ambient temperature -58 to 203° F (-50 to 95°C). Ambient temperature change of 50°F, set point drift  less than 1% of adjustable range 温度开关 环境温度变化(28°C) 对于长度为25-50’英尺的温度开关只有轻微 的影响,详细的请和工厂联系. 介质温度 压力开关： 传感器类型2，7，9：-50至400 ° F（-45至204 ° C） 传感器类型3，4，8：-20至200 ° F（-28到93 ° C） 传感器类型5，6：0至320 ° F（-18至160℃） 传感器类型P：0至200 ° F（-18到93 ° C）， 选择氟橡胶膜片20至250华氏度（-7到121 ° C） 差压开关： 传感器类型K：0到180华氏度（-18至82℃）; 选择氟橡胶膜片20至250华氏度（-7到121 ° C） 温度开关：见选型表。 设定点重复性 温度开关:可调量程范围的 ±1%  压力开关：传感器类型2，可调量程范围的±1.5％ 传感器类型3-9：可调量程范围的 ±1% 差压开关：K1至K3的：可调量程范围的 ±1%，K4组到K6型：可调量程范围 的 ±1.5％ 冲击 差压开关和温度开关: 15 G’s, 10 毫秒 压力开关：: 75 G’s, 10 毫秒 震动 差压开关和温度开关: 2.5 G’s, 10-2000 Hz. 压力开关: 15 G’s, 10-2000 Hz 外壳材质 316 不锈钢 外壳防护 符合 4X 防爆与防护等级 满足1区和2区防爆要求 防护等级为IP66 开关输出 Code S: 一个SPDT, 全密封开关. Code D: 两个 SPDT 作为DPDT , 全密封开关 触点电气额定值 Code H: 5 A, 125/250 VAC, 5 A/28 VDC 电阻性和3 A/28 VDC 电感性。 银触点 Code L: 1 A/ 125 VAC, 1 A /28VDC电阻性和3 A/28 VDC 电感性。 金触点 电气接口 Code N: 1/2" NPT (阳螺纹)带72"甩线 压力接口 Code M: M20公制螺纹, 72"甩线 选择 M515, 4端子 (DIN 43650 Form A) 只适合SPDT(此选项不能满足 Div. 1 or 2, 或ATEX 的 要求)  重量 温度开关：约1磅14盎司（0,85公斤） 压力开关：约12盎司（0.34公斤） 差压开关：约3磅（1.4公斤） 温度开关附件 无毒油填充; 6 英尺 304 不锈钢，其他长度可选择 温度开关死区 在实验室条件通常为2％的范围内 压力差压开关接口 1/2" NPT (母螺纹) or 1/4" NPT (母螺纹). 差压开关: 1/8" NPT (母螺纹) Other connection sizes available, see page 11  Mounting Pressure switch: can be pipe mount or bracket mount (optional 62169-13)  Differential pressure switch: should be installed using bracket mount  Temperature switch: 62169-13 should be specified for new installations            

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