测量原理
差压
特点
数字式变送器，带金属膜片传感器
模块化变送器
高*稳定性
高静压力/抗过载
第二层过程安全栅
供电电压
4...20mA HART
10.5...45V DC（非防爆）：
Ex ia：10.5...30V DC
PROFIBUS PA：
9...32 V DC（非防爆）
FOUNDATION Fieldbus：
9...32 V DC（非防爆）
参考测量精度
Differential pressure
Deltabar PMD75Differential pressure transmitter with metal sensor for measurement of pressure differences
The Deltabar PMD75 differential pressure transmitter with 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.
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)
应用领域
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
特征和规格
- 压力
- 液体
- 蒸汽
- 气体
- 连续液位测量
测量原理
差压
特点
数字式变送器，带金属膜片传感器
模块化变送器
高*稳定性
高静压力/抗过载
第二层过程安全栅供电电压
4...20mA HART
10.5...45V DC（非防爆）：
Ex ia：10.5...30V DC
PROFIBUS PA：
9...32 V DC（非防爆）
FOUNDATION Fieldbus：
9...32 V DC（非防爆）参考测量精度
标准型：0.05%；
铂金型：0.035%*稳定性
0.05% URL/年
0.125% URL/ 5年过程温度
-40...85°C
(-40...185°F)环境温度
-40...85 °C
(-40...185 °F)传感器
10 mbar...40 bar
(0.4 inH2O...600 psi)小可标定量程
1 mbar (0.015 psi)
抗真空压力
50 mbar (7.25psi)
大量程比
100:1
大过压限定值
单侧：
420 bar
(6300psi)过程连接
1/4-18NPT
RC1/4"过程膜片的材质
316L、AlloyC合金、
钽、
金-铑垫圈材质
Viton、PTFE、EPDM、NBR
填充液
无
外壳材质
316L、铸铝
通信
4...20mA 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
WHG/溢出保护
SIL设计认证
NACE MR0103
EN10204-3.1船级认证
GL/ ABS
特点
诊断功能
