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用于液体、浆料和块料非接触式物位测量的一体化测量变送器
优点
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四行纯文本显示的菜单式现场操作，快速简单地进行仪表调试，具有7种可选语言
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现场包络线显示，简单进行仪表故障诊断
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提供的FieldCare操作软件，使用户可以方便地对仪表进行远程操作、故障诊断和测量点文件编制
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适用于爆炸危险区域(气体-Ex, 粉尘-Ex)
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多达32点的线性化功能可将长度、体积或流量测量值转换成任意单位
- 非接触式测量方法，减少了维护需求
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可使用分离显示和操作单元（与变送器的最大安装间距可达20m(66ft)）
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集成温度传感器，自动对受温度影响的声速进行校正
应用领域
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适用于液体、浆料、淤泥和固体块料的连续非接触式物位测量
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明渠和测量堰的流量测量
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系统集成:
HART (标准), 4 ... 20 mA
PROFIBUS PA
FF基金会现场总线 -
最大测量范围
液体: 8 m 固体: 3, 5 m
其他变送器测量范围:
- FMU40:
液体: 5 m 固体: 2m - FMU42:
液体: 10 m 固体: 5 m - FMU43:
液体: 15 m 固体: 7 m - FMU44:
液体: 20 m 固体: 10 m
技术参数
Continuous / Liquids
Continuous / Solids
Liquids
测量原理
Ultrasonic
Characteristic / Application
Compact ultrasonic transmitter
Supply / Communication
2/4-wire (HART), PROFIBUS PA, FOUNDATION Fieldbus
Accuracy
+/- 2 mm or +/- 0,2 % of set measuring range
Ambient temperature
-40 °C ... 80 °C
(-40 °F ... 176 °F)
Process temperature
-40 °C ... 80 °C
(-40 °F ... 176 °F)
Process pressure absolute / max. overpressure limit
0.7 bar ... 3 bar abs
(10 psi ... 44 psi)
Main wetted parts
PVDF
Process connection
G / NPT 2"
Blocking distance
0.35 m (1.15 ft)
Max. measurement distance
8 m (26 ft)
Output
4 ... 20 mA HART
PROFIBUS PA
FOUNDATION Fieldbus
Certificates / Approvals
ATEX
FM
CSA
TIIS
NEPSI
Application limits
For higher resistance:
FMU42/FDU9x
Foam / high turbulence possible:
FMU42/FDU91
Fast filling and discharging rate:
FMU90 + FDU9x
Level limit detection:
FMU90 + FDU9x
| 测量原理 | Ultrasonic | |
| Characteristic / Application | Compact ultrasonic transmitter | |
| Supply / Communication | 2/4-wire (HART), PROFIBUS PA, FOUNDATION Fieldbus | |
| Accuracy | +/- 2 mm or +/- 0,2 % of set measuring range 1) | |
| Ambient temperature | -40 °C ... 80 °C (-40 °F ... 176 °F) | |
| Process temperature | -40 °C ... 80 °C (-40 °F ... 176 °F) | |
| Process pressure absolute / max. overpressure limit | 0.7 bar ... 3 bar abs (10 psi ... 44 psi) | |
| Main wetted parts | PVDF | |
| Process connection | G / NPT 2" | |
| Blocking distance | 0.35 m (1.15 ft) | |
| Max. measurement distance | 3.5 m (11 ft) | |
| Output | 4 ... 20 mA HART PROFIBUS PA FOUNDATION Fieldbus | |
| Certificates / Approvals | ATEX FM CSA TIIS NEPSI | |
| Application limits | Take notice of range diagram | |
