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The FMA1800A Series eletronic 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 FMA1700A/1800A provides measurement of direct gas mass flow rate, without the need to compensate for variations in gas temperature or pressure (within stated limits).
- 0 to 50 SLM range
- Reads Gas Mass Flow Without Temperature or Pressure Compensation
- Available in Economical Aluminum or Corrosion- Resistant 316 SS
- Tiltable LCD Display for Easy Reading
- NIST Traceable Calibration Included
- Accuracy: ±1% of full scale, including linearity over 15 to 25°C and 5 to 60 psia (0.35 to 4.2 kg/cm²)(For sizes up to 100SLM), ±1.5% of full scale, including linearity over 15 to 25°C and 5 to 60 psia (0.35 to 4.2 kg/cm²)For larger sizes)
- Turn-Down Ratio: 100:1
- Repeatability: ±0.5% of full scale and for units ≥100 scm from 0 to 20% of range
- Temperature Coefficient: 0.15% of full scale per °C or better
- Pressure Coefficient: 0.01% of full scale per psi (0.07 bar)
- Response Time: 800 msec time constant, 2 seconds (typical) to within ±2% of set flow rate over 25 to 100% of full scale
- Power Requirements:12 to 26 Vdc power @200 mA maximum
- Maximum Gas Pressure: 1000 psig (70 kg/cm² gauge) for ranges upto 100 SLM, 500 psig (35 kg/cm² gauge)Above 100 SLM, 20 psig optimum
- Gas and Ambient Temperature: 0 to 50°C (0 to 122°F)
- Leak Integrity: 1 x 10-9, std cc/sec of helium maximum 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 minimum load 4 to 20 mA: 50 to 250 Ω loop resistance
- Transducer Power: 12 Vdc @ 200 mA maximum (FMA178PW)
- Shipping Weight: 1.1 kg (2.5 lb)
- Compliance: EN55011 class 1, class B, EN50082-1
