低流量气体流量计设计用于测量管道中低流量的气体流量。
这些低流量气体流量计用于要求高精度的过程中。其紧凑的设计允许直接无缝集成到气体管道中。Intek公司提供Rheotherm低流量气体流量计，用于测量小管线中的气体流量，通常为1”或更小，流速从每分钟几百标准立方英尺(SCFM)到每分钟25标准立方厘米(SCCM)。对于较大管道和导管中的流量测量，您可以考虑我们的管道流量计.
这些气体流量测量仪器给出可重复的质量或标准体积读数，无需外部温度或压力校正。由于没有机械零件，它们可靠且易于维护。我们还为危险环境中的气体测量提供低流量计，包括本质安全型和NEMA 7防爆型。请访问我们的用于危险场所的仪器页面了解更多关于NEMA 7防爆模型。
我们的Rheotherm低流量气体流量计设计用于测量大多数气体的连续流量，包括腐蚀性和爆炸性气体。这些低流量气体流量计测量从氢气到六氟化铀的所有气体。这里是气体流量测量仪器的部分列表。
- 氨
- 氩
- 丁烷
- 二氧化碳
- 一氧化碳
- 氯气(干燥)
- 煤气
- 焦炭气体
- 柴油废气
- 消化气体
- 乙烷
- 乙醇蒸汽
- 乙烯
- 火炬气
- 废气
- 氟气
- 可燃气体
- HC燃料气体
- 氦
- 烃气
- 甲烷
- 甲醇甲醛蒸汽
- 天然气
- 氧
- 丙烷蒸汽
- 丙烯气体
- 二氧化硫
- 六氟化钨
探索我们的气体在线流量计的主要特性，这些特性使其成为各行业各种气体流量测量应用的理想选择。
- 没有活动部件
- 独家在线TU传感器
- 典型校准范围:10:1和高达200: 1量程比的选项
- 耐用的传感器，不受超量程影响
- 高级信号处理电子学
- 现场可调；轻松的现场校准调整
- 免维护
- 易于安装
- 润湿材料的选择
- 长期可靠性
| Standard | Options | |
| Temperature | Process: 0 – 140°F (-18 – 60°C) Environment: 0 – 120°F (-18 – 50°C) | -20 – 350°F (-30 – 175°C) |
| Pressure | 0 – 1,000 PSI | Up to 30,000 PSI |
| Calibration Ranges | 10:1 Turndown; Flow rate: 0.001 to 320 SCFM (.03 to 9060 SLPM) | – Up to 200:1 turndown – Four calibration channels available (for multiple flow ranges or different fluids using the same sensor) |
| Calibration Accuracy | ± 1% of reading typical | |
| Response Time | 1 sec. ; 3 – 5 sec. typ. (63% of range); | Time constant/delay option |
| Repeatability | ± 0.5% of reading | |
| Standard | Options | |
| Line Sizes (flow range dependent) | Capillary; 1/16”; 1/8”; 3/16”; 1/4” 3/8”; 1/2”; 5/8”; 3/4”; 1” | Other sizes via fittings/adapters |
| Process Connection | Plain tube stubs suitable for compression fittings | – MNPT; – Tri-Clover (Sanitary); – SS Flange (1/2” – 2”): Most other fittings available |
| Wetted Material | 316 SS | – Hastelloy C-276®; – Monel®; – Alloy 20; – Titanium; – Tantalum; – Inconel |
| Display | 2 X16 backlit LCD with selectable display of: – Mass/volume flow rate – Temperature – Total accumulated flow | |
| Standard | Options | |
| Enclosure | Sensor: PVC Integrated Electronics: NEMA 4X Cast Aluminum Remote Electronics: NEMA 4 | Sensor: Stainless steel Remote electronics: – Stainless steel – NEMA 7 Explosion-proof |
| Hazardous Environment | Integrated electronics: FM-Approved for: – Class I, Div. 1, Groups B,C,D – Class I, Zone 1, IIB+H2 (US) – Class II, Div. 1, Groups E, F, G – Class III, Div. 1 Remote electronics: Same as above except addition of Group A using ISB | |
| Outputs | 4 – 20 mA (flow rate) or Serial Burst with Flow Rate, Totalizer, and Fluid Temperature | – 0 – 10 or 0 – 5 VDC; – Pulse (5 VDC open collector); – HART (4-20 mA); – SPDT relay; – 4 to 20 mA temp |
| Input Power | 24 VDC ±4V (200 mA; 300 mA w/display option) | 110/230 VAC ±10V |
| TUBE SIZE | ||||||||||
| FLOW RATE LIMITS | C | 1/16 | 1/8 | 3/16 | 1/4 | 3/8 | 1/2 | 5/8 | 3/4 | 1 |
| Extended Maximum | 0.027 | 1.25 | 5 | 11 | 20 | 45 | 80 | 125 | 180 | 320 |
| Normal Maximum | 0.017 | 0.75 | 3 | 7 | 15 | 34 | 70 | 109 | 160 | 280 |
| Normal Minimum | 0.0017 | 0.02 | 0.1 | 0.2 | 0.4 | 0.9 | 1.6 | 2.5 | 3.6 | 6.4 |
| Extended Minimum | 0.0009 | 0.0017 | 0.05 | 0.1 | 0.2 | 0.5 | 0.8 | 1.2 | 2 | 3.2 |
| SCFM | ||||||||||
