Technical Data
CompareContinuous / Liquids
| Measuring Principle | Differential pressure |
| Characteristic / Application | Electronic differential pressure transmitter with metal sensor for level, volume or mass measurement in liquids. |
| Supply / Communication | 4...20 mA HART |
| Accuracy | 0.075% of individual sensor, "PLATINUM" 0.05% of individual sensor |
| Long term stability | 0.05% of URL/year of individual sensor |
| Ambient temperature | –40...+80°C (–40... +176°F) |
| Process temperature | –40...+125°C (–40 ... +257°F) |
| Process pressure / max. overpressure limit | 160 bar (2400 psi) |
| Pressure measuring range | 400 mbar...10 bar (6 psi...150 psi) |
| Main wetted parts | 316L, Alloy C |
| Process connection | Threads Flange (DIN, ASME,JIS) |
| Process connection hygienic | DIN11851 DIN11864-1 Tri-Clamp DRD Varivent |
| Communication | 4...20 mA HART |
| Certificates / Approvals | ATEX, FM, CSA, CSA C/US IEC Ex, NEPSI, INMETRO |
| Design approvals | NACE MR0175 EN10204-3.1 |
| Hygienic approvals | FDA |
| Options | 4-line digital display SS- or Aluminium housing |
| Application limits | Use the Software Applicator Sizing Electronic DP |
Pressure
| Measuring Principle | Differential pressure |
| Characteristic | Electronic differential pressure transmitter with metal sensor for level, volume or mass measurement in liquids. |
| Supply voltage | 4...20 mA HART: 12...45V DC (Non Ex) Ex ia: 12...30V DC |
| Reference Accuracy | 0.075% of individual sensor, "PLATINUM" 0.05% of individual sensor |
| Long term stability | 0.05% of URL/year of individual sensor |
| Process temperature | –40...+125°C (–40...+257°F) |
| Ambient temperature | –40...+80°C (–40...+176°F) |
| Measuring cell | 400 mbar...10 bar (6 psi...150psi) |
| Vacuum resistance | 10 mbar (0.15 psi) |
| Max. overpressure limit | 160 bar (2400 psi) |
| Process connection | Threads Flange (DIN, ASME,JIS) |
| Process connection hygienic | DIN11851 DIN11864-1 Tri-Clamp DRD Varivent |
| Material process membrane | 316L, AlloyC, |
| Fill fluid | Silicone oil Synthetic oil |
| Material housing | Die-cast aluminum Stainless steel |
| Communication | 4...20 mA HART |
| Certificates / Approvals | ATEX, FM, CSA, IECEx, NEPSI, INMETRO, UK Ex |
| Design approvals | NACE MR0175, EN10204-3.1, |
| Hygienic approvals | EHEDG 3A |
The Deltabar FMD72 electronic differential pressure measurement system measures the pressure, level, volume or mass of liquids in pressurized vessels or distillation towers/evaporators. The high-pressure sensor (HP) measures the hydrostatic pressure of the liquid, the low-pressure sensor (LP) measures the top pressure, and the transmitter calculates the level from the sensor inputs. The electronic remote differential pressure level measurement system eliminates the problems encountered with conventional differential pressure measurement.
Benefits:
Eliminates measured-value drift caused by ambient temperature changes
· Eliminates condensation or evaporation and blockages in the impulse lines
· Eliminates the high cost of winter heating and frost protection of impulse lines (installation, insulation)
· Eliminates the leak-prone pipes and fittings of conventional systems
· Multivariable level measurement: the same system provides differential pressure, top pressure and temperature measurement via HART communication
· Diagnostics via HART communication indicate the overall system operating status
· Intuitive, menu-guided commissioning
Application areas:
For differential pressure, level, volume and mass measurement in pressurized tanks and distillation columns/evaporators
· Process connections: thread, flange and hygienic connections
· Process temperature: -40...+125 °C (-40...+257 °F), optionally 250 °C (480 °F)
· Measuring range: 400 mbar ... +40 bar (6 ... 600 psi)
· Accuracy: sensor up to ±0.05 %, system up to ±0.07 %
· International explosion protection and hygienic approvals
E+H product model configurator
Please enter the product model to configure
Product comparison
Please enter the product models to be compared in the input boxes below; up to three products can be compared
Technical information
Technical data
Documents/Manuals/Software
Accessories/Spare parts
Source: public information from the Endress+Hauser website
Case Studies
市政污水处理污水处理厂 · 差压测量应用案例
项目背景
市政污水处理客户在污水处理厂环节，长期面临「出水水质监测精度不足、仪表易受污染导致数据漂移，影响达标排放」的困扰，对差压测量的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的差压测量，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应市政污水处理复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
食品饮料食品生产线 · 差压测量应用案例
项目背景
食品饮料客户在食品生产线环节，长期面临「卫生级测量要求高，在线仪表需耐 CIP/SIP 清洗且精度稳定」的困扰，对差压测量的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的差压测量，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应食品饮料复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
化工制药反应釜与储罐 · 差压测量应用案例
项目背景
化工制药客户在反应釜与储罐环节，长期面临「介质腐蚀性强、工况复杂，仪表需耐腐蚀且防爆」的困扰，对差压测量的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的差压测量，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应化工制药复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
电力能源电厂锅炉与汽机 · 差压测量应用案例
项目背景
电力能源客户在电厂锅炉与汽机环节，长期面临「高温高压工况下测量不稳定，维护停机成本高」的困扰，对差压测量的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的差压测量，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应电力能源复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
