超声波液位计变送器
Technical Data
CompareContinuous / Liquids
| Measuring Principle | Ultrasonic |
| Characteristic / Application | Separated version with Field housing or top hat rail housing for control cabinet instrumentation, up to 6 relays for pump / rake / limit control, 1 or 2 channel version |
| Specialities | Protection Class IP 66 / NEMA 4x automatic sensor recognition of FDU9x sensors option: flow measurement for open channel and weirs or additional pump control functions |
| Supply / Communication | 90 ... 253 VAC 10.5 ... 32 VDC up to 2x 4...20mA HART Profibus DP |
| Accuracy | +/- 2mm + 0.17% of measured distance |
| Ambient temperature | -40 °C ... 60 °C (-40 °F ... 140 °F) |
| Communication | up to 2x 4 ... 20 mA HART Profibus DP |
| Certificates / Approvals | ATEX, CSA |
| Options | Illuminated display, 6 line graphic display with country specific menu guidance, on-site diagnosis with envelope curve on display |
| Components | Sensors FDU9x |
Continuous / Solids
| Measuring Principle | Ultrasonic |
| Characteristic / Application | Separated version with Field housing or top hat rail housing for control cabinet instrumentation, up to 6 relays for limit control, 1 or 2 channel version |
| Specialities | Protection Class IP 66 / NEMA 4x automatic sensor recognition of FDU9x sensors |
| Supply / Communication | 90 ... 253 VAC 10.5 ... 32 VDC up to 2x 4...20mA HART Profibus DP |
| Accuracy | +/- 2mm + 0.17% of measured distance |
| Ambient temperature | -40 °C ... 60 °C (-4 °F ... 140 °F) |
| Communication | up to 2x 4 ... 20 mA HART Profibus DP |
| Certificates / Approvals | ATEX, CSA |
| Options | Illuminated display, 6 line graphic display with country specific menu guidance, on-site diagnosis with envelope curve on display |
| Components | Sensors FDU9x |
Liquids
| Measuring Principle | Ultrasonic |
| Product headline | Separated version with field housing or top hat rail housing for control cabinet instrumentation, up to 6 relays for tendency alarm, flow pulse output or backwater / sludge alarm, 1 or 2 channel version |
| Sensor features | pre-programed flow curves for typical open channel measurement |
| Degree of protection | IP66 (Fieldhousing) IP20 (top hat rail housing) |
| Display/Operation | Illuminated display, 6 line graphic display with country specific menu guidance, on-site diagnosis with envelope curve on display |
| Outputs | 4...20mA HART Optional: second 4...20 mA output (e.g. for 2 times flow measurement 1 relay (standard) Optional: 3 or 6 relays |
| Inputs | up to 2 FDU9x sensors |
| Digital communication | HART, Profibus DP |
| Hazardous area approvals | FMU allowed to operate FDU9x in Ex-zone |
The Prosonic FMU90 can be installed in the field or on a DIN rail in an instrument cabinet. It is suitable for continuous, non-contact level measurement of liquids, pastes, sludge, powders and coarse bulk solids. It can also be used for flow measurement in open channels and weirs; with a single sensor it can simultaneously measure the level and flow of stormwater overflow basins. Up to 6 relays can trigger trend alarms, flow pulse output alarms or backwater/sludge alarms, with single-channel or dual-channel versions available.
Benefits
Simple menu-guided on-site operation with a six-line plain text display, available in 15 languages
On-site envelope curve display for simple instrument fault diagnosis
The FieldCare operating software allows convenient remote operation, fault diagnosis and measuring point documentation
Time-of-flight calibration via built-in or external temperature sensor
Linearization function (up to 32 points) converts the measured value into length, volume or flow in any unit
Online calculation of channel/weir flow based on built-in flow curves
Automatic FDU9x sensor recognition function
Application areas
Level measurement: with 1 to 2 sensors for level measurement of liquids and bulk solids; measuring range up to 45 m; limit detection; pump control systems; target control systems; optional: additional pump control function; calculation: average, difference, total; Flow measurement: with 1 to 2 sensors for flow measurement in open channels and measuring weirs; return flow measurement or sludge monitoring; up to 3 totalizers and 3 counters; counter or time pulse output for external control units
Commonly used model:FMU90-R11CA111AA3A
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Related Models
Case Studies
市政污水处理污水处理厂 · 超声波应用案例
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，对超声波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超声波，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 · 超声波应用案例
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，对超声波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超声波，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 · 超声波应用案例
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，对超声波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超声波，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 · 超声波应用案例
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，对超声波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超声波，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。
