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非接触式连续测量物位和流量的超声波探头
与FMU90/FMU95变送器配套使用
优点
- 非接触式测量方法; 降低了维护需要
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集成温度探头用于校正超声波运行时间。即便处于温度变化的环境之中，也可得到准确的测量结果.
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FMU90 /FMU95变送器能自动识别探头类型，因此调试十分简单
- 密封焊接的探头(316L, 1.4404, 1.4435)，具有极高的抗化学腐蚀能力
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探头和变送器能分离安装，最长间距达300m
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探头可与变送器分离进行安装，能适应恶劣的外部工作环境
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探头的自清洗功能有效地降低了粘附现象发生的可能性
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抗侵蚀，防水型 (IP68)
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通过粉尘防爆(Dust-Ex)认证和气体防爆(Gas-Ex)认证(ATEX, FM, CSA, TIIS)
应用领域
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对液体，糊状物，浆料，粉料及表面粗糙的固体块状物进行连续的非接触式物位测量
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对明渠和测量堰进行流量测量
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最大测量范围:
液体：10 m
块料：5 m -
适用于爆炸危险区域
其他探头测量范围:
- FDU92:
液体：20m
块料：10m - FDU93:
液体：25m
块料：15m - FDU95:
块料：45m - FDU96:
块料：70m
技术参数
Continuous / Liquids
Continuous / Solids
测量原理
Ultrasonic
Characteristic / Application
Separated version with field housing or top hat rail housing for control cabinet instrumentation, 300m in-between sensor and transmitter
Supply / Communication
4-wire (HART, Profibus DP)
Accuracy
+/- 2mm + 0.17% of measured distance
Ambient temperature
-40 °C ... 105 °C
(-40 °F ... 221 °F)
Process temperature
-40 °C ... 105 °C
(-40 °F ... 221 °F)
CIP: 30 min: 135 °C
(30 min: 275 °F)
Process pressure absolute / max. overpressure limit
0.7 bar ... 4 bar abs
(10 psi ... 58 psi)
Main wetted parts
316L (fully welded IP68 / NEMA 6P)
Process connection
G / NPT 1", DN80 / 100, ANSI 3" / 4"
Process connection hygienic
Tri-Clamp ISO2852, DN80 3 1/2", DN100 4"
Blocking distance
0.3 m (1 ft)
Max. measurement distance
10 m (33 ft)
Output
Transmitter:
4 ... 20 mA HART
Profibus DP
Certificates / Approvals
ATEX
FM
CSA
IECEx
EN 10204-3.1
3A
Application limits
Foam / high turbulence possible:
FDU92
For tank farms scanner:
FMU95
Components
Transmitter:
FMU90, FMU95
| 测量原理 | Ultrasonic | |
| Characteristic / Application | Separated version with field housing or top hat rail housing for control cabinet instrumentation, 300m in-between sensor and transmitter | |
| Supply / Communication | 4-wire (HART, Profibus DP) | |
| Accuracy | +/- 2mm + 0.17% of measured distance | |
| Ambient temperature | -40 °C ... 105 °C (-40 °F ... 221 °F) | |
| Process temperature | -40 °C ... 105 °C (-40 °F ... 221 °F) 30 min: 135 °C / 275 °F) | |
| Process pressure absolute / max. overpressure limit | 0.7 bar ... 4 bar abs (10 psi ... 58 psi) | |
| Main wetted parts | 316L (fully welded IP68 / NEMA 6P) | |
| Process connection | G / NPT 1", DN80 / 100, ANSI 3" / 4" | |
| Process connection hygienic | Tri-Clamp ISO2852, DN80 (3 1/2"), DN100 (4") | |
| Blocking distance | 0.3 m (1 ft) | |
| Max. measurement distance | 5 m (16 ft) | |
| Output | Transmitter: 4 ... 20 mA HART Profibus DP | |
| Certificates / Approvals | ATEX CSA | |
| Options | Second 4...20 mA output | |
| Components | Transmitter: FMU90 | |
