差压变送器PMD75

应用领域

• The Deltabar PMD75 differential pressure transmitter with piezoresistive sensor and welded metallic membrane is used in all industries for continuous measurement in liquids, vapors and gases. The 3-key operation enables simple and reliable commissioning and operation. The integrated HistoROM data module allows easy management of process and device parameters. Designed according to IEC 61508 for use in SIL2/3 safety applications.
• For level, volume or mass measurement in liquids, differential pressure monitoring as well as flow measurement (volume or mass flow) in conjunction with primary elements in gases, vapors and liquids.
• Process connections: Threads
• Process temperature: -40 to +85°C (-40 to +185°F)
• Measuring ranges: 0.25mbar to 40bar (0.0036 to 600psi)
• Accuracy: ±0.05%, "Platinum" ±0.035% (optional)
• International explosion protection certificates, overfill prevention WHG, SIL, hygienic approvals, marine approvals
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优势

• Best accuracy, reproducibility and long-term stability
• Highest safety due to gas tight feedthrough with capabilities up to SIL2/3, certified to IEC 61508
• Easy menu-guided commissioning via local display, 4 to 20mA with HART, PROFIBUS PA, FOUNDATION Fieldbus
• HistoROM data management concept for fast and easy commissioning, maintenance and diagnostics
• Cost savings with modular concept for easy replacement of sensor, display or electronics
• Overload-resistant up to 420bar / 42MPa / 6300psi, function-monitored
• Seamless and independent system integration (HART/PA/FF)
• 连续液位测量

  测量原理	差压
  特点/应用	数字式变送器，带金属膜片传感器 模块化变送器 高长期稳定性 高静压力/抗过载 通过自诊断功能提升安全性 第二层过程安全栅
  电源/通信	4...20mA HART： 10.5...45 VDC Ex ia：10.5...30 VDC PROFIBUS PA / FOUNDATION Fieldbus： 9...32 VDC（非防爆型）
  测量精度	标准型：0.05%； 铂金型：0.035%
  长期稳定性	0.05% URL /年
  环境温度	-50...85°C (-58...185°F)
  过程温度	-40...85 °C (–40...185 °F)
  过程压力（绝压）/最大过压限定值	420bar (6300psi)
  压力测量范围	10mbar...40bar (0.15...600 psi)
  主要接液部件	Alloy C276合金 316L Monel 钽
  过程连接	1/4...18NPT RC1/4"
  最大测量距离	400m (1.312ft) H2O
  通信	4...20 mA HART PROFIBUS PA FOUNDATION Fieldbus
  证书和认证	ATEX、FM、CSA、CSA C/US、IEC Ex、TIIS、INMETRO、NEPSI、EAC
  安全认证	溢出保护WHG SIL
  设计认证	EN 10204-3.1 NACE MR0175、MR0103
  船级认证	GL/ ABS
  选项	HistoROM/M-Dat 四行数字显示 不锈钢外壳或铝外壳 分离型外壳
  替代产品	PMD75B
  应用限制	传感器： 金属焊接