| 测量原理 | 涡街 |
| 主要特点 | The flowmeter with the same accuracy despite line size reduction, available as compact or remote version. Integrated temperature measurement for mass/energy flow of saturated steam. Dedicated for applications with very low or reduced flow.
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| 特点 | Cost and time saving – no pipework modifications needed for line size reduction. High availability – proven robustness, resistance to vibrations, temperature shocks & water hammer. No maintenance – lifetime calibration. Integrated diameter reduction by 1 or 2 line sizes. Nominal diameter (mating pipe) up to DN 250 (10").
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| Transmitter features | Convenient device wiring – separate connection compartment. Safe operation – no need to open the device due to display with touch control, background lighting. Integrated verification – Heartbeat Technology. Display module with data transfer function. Robust two‐chamber housing.
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| 直径 | DN 25 to 250 (1 to 10")
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| Wetted materials | Measuring tube: 1.4408 (CF3M)
DSC sensor: 1.4435 (316/316L)
Connection: 1.4404 (F316/F316L)
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| Measured variables | Volume flow, mass flow, corrected volume flow, energy flow, heat flow difference, temperature
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| 测量误差 | Volume flow (liquid): ±0.75 %
Volume flow (steam, gas): ±1.00 %
Mass flow (liquid): ±0.85%
Mass flow (steam, gas): ±1.7 %
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| 量程 | Liquid: 0.26 to 545 m3/h (0.15 to 321 ft3/min)
depending on medium: water with 1 bar a, 20 °C (14.5 psi a, 68° F)
Steam, gas: 3.6 to 7262 m3/h (2.12 to 4274 ft3/min
depending on medium: steam with 180 °C, 10 bar a (356 °F, 145 psi a); air with 25 °C, 4.4 bar a (77 °F, 63.8 psi a)
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| 压力范围 | PN 40, Class 300, 20K
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| 过程温度 | Standard: –40 to +260 °C (–40 to +500 °F)
High/low temperature (option): –200 to +400 °C (–328 to +752 °F)
High/low temperature (on request): –200 to +450 °C (–328 to +842 °F)
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| 环境温度 | Compact version (standard): –40 to +80 °C (–40 to +176 °F)
Compact version (option): –50 to +80 °C (–58 to +176 °F)
Remote version (standard): –40 to +85 °C (–40 to +185 °F)
Remote version (option): –50 to +85 °C (–58 to +185 °F)
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| Sensor housing material | Sensor connection housing: AlSi10Mg, coated; 1.4408 (CF3M)
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| Transmitter housing material | AlSi10Mg, coated; 1.4404 (316L)
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| 电子插件的防护 | Compact version: IP66/67, type 4X enclosure
Sensor remote version: IP66/67, type 4X enclosure
Transmitter remote version: IP66/67, type 4X enclosure
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| 显示/操作 | 4‐line backlit display with touch control (operation from outside)
Configuration via local display and operating tools possible
Remote display available
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| 输出 | 4‐20 mA HART (passive)
4‐20 mA (passive)
Pulse/frequency/switch output (passive)
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| 输入 | 4‐20 mA (passive)
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| 通信 | HART, PROFIBUS PA, FOUNDATION Fieldbus
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| Power supply | DC 12 to 35 V (4‐20 mA HART with/without pulse/frequency/switch output)
DC 12 to 30 V (4‐20 mA HART, 4‐20 mA)
DC 12 to 35 V (4‐20 mA HART, pulse/frequency/switch output, 4‐20 mA input)
DC 9 to 32 V (PROFIBUS PA, pulse/frequency/switch output)
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| 防爆认证 | ATEX, IECEx, cCSAus, TIIS
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| Other approvals and certificates |
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| Functional safety | Functional safety according to IEC 61508, applicable in safety-relevant applications in accordance with IEC 61511
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| Metrological approvals and certificates | Calibration performed on accredited calibration facilities (acc. to ISO/IEC 17025)
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| Pressure approvals and certificates | PED, CRN, AD 2000
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| Material certificates | 3.1 material
NACE MR0175/MR0103, PMI (on request); welding test acc. to ISO 15614‐1, similar to ASME IX (on request) |