PXT-K系列压力传感器
PXT-K Series pressure transmitters

PXT-K系列压力变送器

PXT-K 系列压力变送器是先进的仪器，可用于压缩机、发动机、过程控制、液位和泵等应用。PXT-K系列压力变送器是先进的仪器，提供4-20 mA输出。每个压阻式压力变送器都包含一个传感器，该传感器由安装在玻璃金属馈通接头上的压阻式硅芯片组成，该接头焊接在不锈钢外壳内，并填充硅油。超薄的激光焊接不锈钢隔离膜片构成了其正面。介质压力通过不锈钢隔离膜片经由内部油液传递至硅测量芯片。这种结构，结合先进的内部信号调理电路，造就了这款坚固耐用、温度误差极小且具有一流EMI/RFI抗干扰能力的仪器。外壳和所有接触液体的部件均采用 316L 不锈钢制成。

- 压阻式压力变送器
- 用于压缩机、发动机、过程控制、液位测量和泵。
- 4-20 mA 输出信号
- 耐腐蚀结构
- 高稳定性

PXT-K Series pressure transmitters

操作范围

工作压力范围：
请参阅 FW Murphy 公告中 PXT-K 系列型号矩阵下的“如何订购”部分。
工作温度：
-22° 至 176° F (-30° 至 80° C)
补偿温度范围：
-20°至160°F（-29°至71°C）
工艺连接：1/4 英寸 -18 NPT 内螺纹，带 7/8 英寸或 1-3/16 英寸六角螺母
电气连接：
PXT-K：1/2 英寸 NPT 外螺纹导管连接，带 60 英寸长电缆，带通风口
PXT-KM：M12连接器
防护等级： IP65
主体：316L不锈钢
与液体接触的部件：316L不锈钢
环境影响（湿度）：0-95%范围内无影响，无冷凝
安装方式：变送器可以安装在任意轴向上。只要变送器与被监测的流量垂直，其位置对性能的影响可以忽略不计。
抗冲击性：符合IEC 60068-2-27标准，800克（机械冲击）
抗振性能：符合IEC 60068-2-6标准，20G（共振振动）
线路保护：具备反极性保护和短路保护，最大电压 48VDC。
供电电压：10 – 30 VDC（典型值为 24 VDC）
变送器输出：4-20mA，两线制配置，带负载特性
绝缘性能：大于 10MΩ（300VDC）。
电磁兼容性 (EMC)：标准；EN 61000-6-2:2005、EN 61000-6-3:2007、EN 61326-2-3:2006
电压浪涌/尖峰保护：符合IEC 60-2标准，可防止600伏尖峰电压冲击。
运输重量：6.5盎司
适用标准

CSA（c/us）：
第一/二/三类，第一组，AF T4组
第一/第二/第三类，第二组，AD、F、G组 T4
ATEX：
IBExU 10 ATEX 1124 X
II 1G Ex ia IIC T6-T4
II 3G Ex nA IIC T6
加拿大注册号： OF15236.2（所有省份和地区）

如需了解更多产品信息，请点击此处下载相关资料：

- 销售公告（1211009；修订日期：2024年12月）

- 安装说明（00-02-0840；修订日期：2024年12月）

- PXT系列交叉参考表

- PXT-K 和 PXT 系列线缆标识（2215412；修订日期：2022 年 2 月）

PXT-K和PXT系列压力传感器接线及识别信息
PXT-K and PXT Series Pressure Transducer Cablingldentification
电气电缆颜色的标识在两系列压力变送器之间并非可互换的。 确认你所使用的压力变送器单元，以避免接线错误。 Identification of electrical cable color is NOT interchangeable between the two series of pressure transmitters. Identify the pressure transmitter unit you have to avoid wiring mistakes.

Identification
识别

PXT-K Series Pressure Transmitters
The PXT-K Series pressure transmitters are state-of-the-art instruments that can be used in applications such as compressors, engines, process control, liquid level and pumps.

- Piezoresistive pressure transmitter
- Used with compressors, engines, process control, liquid level and pumps
- 4-20 mA output signal
- Corrosion resistant construction
- High stability

The PXT-K Series pressure transmitters are state-of-the-art instruments providing 4-20 mA output. Each piezoresistive pressure transmitter contains a transducer comprised of a piezoresistive silicon chip mounted on a glass-metal feed-through header welded into a stainless steel housing and filled with silicone oil. The very thin laser-welded stainless steel isolation-diaphragm completes the front side. Media pressure is transferred from the stainless steel isolation-diaphragm via the oil inside the cell to the silicon measuring chip. This construction, combined with the advanced internal signal conditioning circuitry, results in a rugged instrument with extremely small temperature error and class-leading EMI/RFI resistance.

The enclosure and all wetted parts are made of 316L stainless steel.

Operating Range

Operating Pressure Range:
See How to Order under the PXT-K Series Model Number Matrix in the FW Murphy bulletin
Operating Temperature:
-22° to 176° F (-30° to 80° C)
Compensated Temp Range:
-20° to 160° F (-29° to 71° C)
Process Connection: 1/4 in. -18 NPT female with 7/8 in. or 1-3/16 in. hex nut
Electrical Connection:
PXT-K: 1/2 in. NPT male conduit connection with 60 in. long cable, vented
PXT-KM: M12 connector
Enclosure Rating: IP65
Body: 316L stainless steel
Wetted Parts: 316L stainless steel
Environmental Effect (Humidity): No effect for 0-95%, non-condensing
Mounting: Transmitter can be installed in any axis. Transmitter position has negligible effect on performance as long as it is perpendicular to the flow being monitored.
Shock Resistance: 800g per IEC 60068-2-27 (Mechanical Shock)
Vibration Resistance: 20G per IEC 60068-2-6 (Vibration under resonance)
Wiring Protection: Protected against reverse polarity and short circuit, 48 VDC Maximum
Supply Voltage: 10 – 30 VDC (Typically 24 VDC)
Transmitter Output: 4-20mA, two wire configurations with load characteristics
Insulation: Greater than 10MΩ @ 300 VDC
Electromagnetic Compatibility (EMC): Standards; EN 61000-6-2:2005, EN 61000-6-3:2007, EN 61326-2-3:2006
Voltage Surge/Spike Protection: Protection against a 600-volt spike per IEC 60-2
Shipping Weight: 6.5 ounces
Applicable Standards

CSA (c/us):
Class I / II / III, Div 1, Groups A-F T4
Class I / II / III, Div 2, Groups A-D,F,G T4
ATEX:
IBExU 10 ATEX 1124 X
II 1G Ex ia IIC T6-T4
II 3G Ex nA IIC T6
Canadian Registration Number: OF15236.2 (all provinces and territories)

For more information about this product, you can download the related literature here:

Sales Bulletin (1211009; revision date: 12/2024)

Installation Instructions (00-02-0840; revision date: 12/2024)

PXT Series Cross Reference Chart

PXT-K and PXT Series Cabling Identification (2215412; revision date: 02/2022)

The PXT-K Series pressure transmitters are state-of-the-art instruments providing 4-20 mA output. Each piezoresistive pressure transmitter contains a transducer comprised of a piezoresistive silicon chip mounted on a glass-metal feed-through header welded into a stainless steel housing and filled with silicone oil. The very thin laser-welded stainless steel isolation-diaphragm completes the front side. Media pressure is transferred from the stainless steel isolation-diaphragm via the oil inside the cell to the silicon measuring chip. This construction, combined with the advanced internal signal conditioning circuitry, results in a rugged instrument with extremely small temperature error and class-leading EMI/RFI resistance.

The enclosure and all wetted parts are made of 316L stainless steel.

Pressure Transmitters Installation Instructions
Models: PXT-K and PXT-KM

Pressure Transmitters

The PXT-K Series pressure transmitters are state-of-the-art instruments that can be used in applications such as compressors, engines, process control, liquid level and pumps.

• Piezoresistive pressure transmitter
• Used with compressors, engines, process control, liquid level and pumps
• 4-20 mA output signal
• Corrosion resistant construction
• High stability

美国DMK Engineering Solutions公司
北京卡梅迩控制技术有限公司
Beijing Carmel Control Technology Co., Ltd.

地址：北京市朝阳区望京街10号望京SOHO - T1- C座2115室 邮编：100102
电话：010 - 8428 2935，8428 3983
手机：139 1096 2635
网站：Http://www.cnmec.com