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Differential pressureDeltabar PMD75
Differential pressure transmitter with
meta
l sensor for measurement of pressure differences
The Deltabar PMD75 differential pressure transmitter with with piezoresistive sensor and welded
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)
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
规格和特征
压力
量原理差压特点采用金属测量膜片的模块化数字变送器，长期稳定性，强抗静压/抗过载能力；第二过程栅
供电电压4...20mA HART：10,5...45V DC，Ex ia：10,5...30V DC，PROFIBUS PA /基金会现场总线：9...32V DC
参考测量精度"0,075%，"PLATINUM" 0,05%"
长期稳定性测量单元 > 500 mbar：±0,05% URL / 年，±0,125% URL / 5 年；测量单元< 100 mbar：±0,18% URL / 年
过程温度-40°C...85°C
环境温度-40...85℃
传感器10mbar...40bar
*小可标定量程1 mbar (0.015 psi)
抗真空压力50 mbar (0.73 psi)
*大量程比100:1
*大过压限定值单侧：*大420 bar
过程连接"1/4-18NPT，RC1/4"
过程膜片的材质316L, AlloyC,
Tantal,
Gold-Rhodium
垫圈材质Viton, PTFE, EPDM, NBR
填充液None
外壳材质316L, Die-cast aluminum
通信4...20mA HART，PROFIBUS PA，基金会现场总线
证书和认证ATEX，FM，CSA，WHG/溢出保护，SIL，NACE，船级认证，EN10204-3.1
安全认证WHG/ Overfill prevention
SIL
设计认证NACE MR0103
EN10204-3.1
船级认证GL/ ABS
特点Diagnostic functions
