FMA-2622A-I_FMA-2622A-I2_FMA-2622A-V2_FMA-2622A-VOL质量流量控制器OMEGA

20多种气体校准，包括氦气、氧气、氖气、***氧化二氮、氮气、大气、氩气、***氧化碳、二氧化碳、甲烷、乙烷、氢气、丙烷、丁烷、异丁烷、乙烯、乙炔、氪气、氙气、六氟化硫

同时显示压力、温度、体积以及质量流量

简单易用的按钮界面

NIST 可溯源性标准

满量程范围：0.5 SCCM ~ 3000 LPM

常规响应时间：50 ~ 100 毫秒

常规量程比：100:1

位置不敏感

±0.8%读数精度

标配RS232

FMA-2622A-I_FMA-2622A-I2_FMA-2622A-V2_FMA-2622A-VOL质量流量控制器OMEGA

Accuracy: (+0.8% of readings + 0.2% of full range)

Repeatability: Full range (+0.2%)

Range ratio: 100:1

Control response time: 100 ms

Input control signal: 0 ~ 5 Vdc, RS232

Output signal: 0 ~ 5 Vdc, RS232

Optional Input/Output: 4-20 mA, 0-10 Vdc

Working temperature: 10 ~ 50 degree C (14 ~ 50.00 degree C)

Zero offset: 0.02%/~C of full range

Range migration: 0.02%/C of full range

Humidity range: 0 - 100% RH, no condensation

Additional velocity: 2.4% of full range

Contact material: 303 and 302 stainless steel, fluororubber, silicone RTV (rubber), glass reinforced nylon, aluminium, copper, 410 stainless steel, silicone, glass; > 250 SLM: 416 stainless steel and nickel replacement copper

Maximum pressure

Mass Flow Controller: 145 psig

Use Volume Model: Use Volume Model: Near the Atmosphere, recommended a maximum of 15 psig.

Volume flowmeters and controllers do not guarantee the accuracy of mass flow rate beyond the rated flow range of flowmeters. These values are only applicable to near-atmospheric pressure conditions. The recommended maximum working pressure is 15 psig

Rating minimum differential pressure: 5 SLM and below: 5 psid; 10-250 SLM: 15 psid; 500 SLM: 5 psid; 1500 SLM: 10 PSID

Power supply current: 20 SLM and below 0.250 A; 50 SLM and above 0.75 A (conventional)

Power supply voltage: 20 SLM and smaller equipment 12-30 Vdc; 50 SLM and larger equipment 24-30 Vdc

Electrical connection: 8 pins circular Mini DIN

FMA-2622A-I_FMA-2622A-I2_FMA-2622A-V2_FMA-2622A-VOL质量流量控制器OMEGA

FMA-2600A系列质量与体积流量控制器在层流场中使用差压原则来确定和控制质量流速。流量计中的层流元件(LFE)迫使气体进入层流。泊肃叶方程规定， 在这***区域体积流速与压力下降呈线性关系。使用压差传感器衡量LFE固定距离中的压力下降情况。同时结合气体的粘度准确判定体积流速。引入单独的绝对温度和压力传感器，并根据***系列标准条件纠正气体流速。这种标准流速俗称质量流速，并使用每分钟标准立方英尺(SCFM)或每分钟标准升(SLM)等单位表示。

该控制器采用连接到流体的真正比例阀，通过***体化PID回路控制器控制流体。标准设备包括0 ~ 5 V输出（可选4 ~ 20 mA）和RS232通讯。可通过前面板键盘或RS232通讯调整气体选择功能和设定值。体积 流量、质量流量、绝对压力以及温度均可以通过RS232连接查看或记录。同时，在距离为46 m (150')的同***串口连接上，***多可与26台设备进行多点通讯。