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  • 產品名稱:美國OMEGA氣體質量流量計

  • 產品型號:FMA1700/1800
  • 產品廠商:美國OMEGA
  • 產品文檔:
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FMA1700/1800美國OMEGA氣體質量流量計,經濟型流量計,應用于潔凈氣體,顯示屏可選。無溫度壓力補償,鋁或316SS材質可選,量程:0-1000SLM可選。
詳情介紹:

FMA1700/1800美國OMEGA氣體質量流量計,The FMA1700/1800 Series electronic gas mass flowmeters,經濟型流量計,應用于潔凈氣體,顯示屏可選。無溫度壓力補償,鋁或316SS材質可選,量程:0-1000SLM可選。

FMA1700/1800美國OMEGA氣體質量流量計產品特點:
Mass Flow meters With or Without Integral Display
? Reads Gas Mass Flow Without Temperature or Pressure Compensation
? Flow ranges specified are for nitrogen or air at 20 psig
? Available in Economical Aluminum or Corrosion-Resistant 316 SS
? Tiltable LCD Display for Easy Reading
? NIST Traceable Calibration
 
The FMA1700/1800 Series electronic gas mass flowmeters provide for monitoring the flow of a wide variety of gases from 10 SCCM up to 1000 SLM. Utilizing heat transfer through a heated tube to measure molecular gas flow rate, the FMA1700/1800 provides measurement of direct gas mass flow rate, without the need to compensate for variations in gas temperature or pressure (within stated limits). They are available in an economical aluminum/brass construction for typical gas flows and a 316SS construction for applications requiring more corrosion resistance. The FMA1700 series without integral display is supplied with a field selectable analog 0 to 5 Vdc or 4 to 20 mA output for remote monitoring; the FMA1800 series has both an integral 3? digit display and analog output. The display is tiltable over 90° for viewing convenience. The display is calibrated standard to read out directly in SCCM or SLM for nitrogen (other gas calibrations available on special order).

Due to their low cost, digital display, analog output capability, and insensitivity to variations in gas temperature and pressure, the FMA1700/1800 Series are ideal substitutes for many rotameter applications. When used with the FMA178BP portable battery pack, the FMA1800 Series are ideal for in-the-field calibration of flowmeters or testing of air sampling equipment. The FMA178BP battery pack includes batteries, recharger, and carrying case with shoulder strap and belt loop. With the FMA178BP, the flowmeter can operate in excess of 40 hours; the batteries can be recharged at least 200 times.

The FMA1700/1800 Series require 12 Vdc power @ 200 mA maximum, which can be supplied by the FMA178PW plug-in socket power supply. The electronics are reverse polarity protected and has externally accessible fusing. Model number FMA178C (supplied separately) provides a mating 9-pin “D” connector with 3 feet of ribbon cable for accessing the 0 to 5 Vdc output signal and power input connections (use FMA178C-MA for 4 to 20 mA output signal connection).

The LCD supplied with the FMA1800 Series is connected to the lower electronics via a modular plug. The LCD can be remotely located by purchasing an FMA18RC remote cable assembly-you must then build your own assembly for panel mounting the LCD.

Flow ranges specified are for nitrogen or air at 20 psig. When used for other gases, a multiplication factor is used to determine the flow rate, and the digital display must be rescaled in the field. Or request a custom calibration by adding the gas and pressures as a suffix to the model number. All calibrations done at ambient (20C/70F) temperature only. Questions? Please contact Omega Flow Engineering!

FMA1700/1800美國OMEGA氣體質量流量計技術參數:
Accuracy: ±1.5% of full scale, including linearity over 15 to 25°C and 5 to 60 psia (0.35 to 4.2 kg/cm2);± 3% of full scale, including linearity over 0 to 50°C and 1 to 500 psia (0.07 to 10 kg/cm2) and for units ≥100 SLM from 0 to 20% of range.
Repeatability: ±0.5% of full scale
Temp Coefficient: 0.15% of full scale per °C or better
Pressure Coefficient: 0.01% of full scale per psi (0.07 bar)
Maximum Pressure Drop:
SLM 10 20 30 50 60 80 100 200 500 1000
inH2O 1 14 34 90 129 168 227 112 140 252

Response Time: 800 msec time constant; 2 seconds (typical) to within ±2% of set flow rate over 25 to 100% of full scale
Max Gas Pressure: 500 psig (35 kg/cm2 gauge); 20 psig optimum
Gas and Ambient Temp: 0 to 50°C (0 to 122°F)
Leak Integrity: 1 x 10-7 std cc/sec of helium max. to outside environment
Materials in Fluid Contact:
   Aluminum Models: Anodized aluminum, 316 SS, brass and FKM O-rings
   Stainless Steel Models: 316 SS and FKM O-rings
Output Signal
   Linear 0 to 5 Vdc: 1000 Ω min load;
   4 to 20 mA: 50 to 250 Ω loop resistance
Transducer Power: 12 Vdc @ 200 mA max.
Shipping Weight: 1.1 kg (2.5 lb)
Compliance: EN55011 class 1, class B; EN50082-1 Δ

FMA1700/1800美國OMEGA氣體質量流量計選型指南:

   
Al/Br機身

帶顯示屏

型   號

SS機身

帶顯示

   
 
Al/Br機身

不帶顯示屏

型  號

SS機身

不帶顯示

*大流量

FMA1802

FMA1802ST

FMA1702

FMA1702ST

10SCCM

FMA1804

FMA1804ST

FMA1704

FMA1704ST

20SCCM

FMA1806

FMA1806ST

FMA1706

FMA1706ST

50SCCM

FMA1808

FMA1808ST

FMA1708

FMA1708ST

100SCCM

FMA1810

FMA1810ST

FMA1710

FMA1710ST

200SCCM

FMA1812

FMA1812ST

FMA1712

FMA1712ST

500SCCM

FMA1814

FMA1814ST

FMA1714

FMA1714ST

1SLM

FMA1816

FMA1816ST

FMA1716

FMA1716ST

2SLM

FMA1818

FMA1818ST

FMA1718

FMA1718ST

5SLM

FMA1820

FMA1820ST

FMA1720

FMA1720ST

10SLM

FMA1823

FMA1823ST

FMA1723

FMA1723ST

15SLM

FMA1824

FMA1824ST

FMA1724

FMA1724ST

20SLM

FMA1826

FMA1826ST

FMA1726

FMA1726ST

30SLM

FMA1827

FMA1827ST

FMA1727

FMA1727ST

40SLM

FMA1828

FMA1828ST

FMA1728

FMA1728ST

50SLM

FMA1840

FMA1840ST

FMA1740

FMA1740ST

60SLM

FMA1841

FMA1841ST

FMA1741

FMA1741ST

80SLM

FMA1842

FMA1842ST

FMA1742

FMA1742ST

100SLM

FMA1843

FMA1843ST

FMA1743

FMA1743ST

200SLM

FMA1844

FMA1844ST

FMA1744

FMA1744ST

500SLM

FMA1845

FMA1845ST

FMA1745

FMA1745ST

1000SLM































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