641RM系列 分體式風(fēng)速變送器用于監(jiān)測(cè)風(fēng)速。它采用熱式原理來精確測(cè)量風(fēng)速。641系列有16種量程范圍供選擇從0-250 - 15,000 FPM (0-1.25 - 75 MPS)，使其廣泛地應(yīng)用于多種應(yīng)用場(chǎng)合。傳感器和探頭之間6英尺長(zhǎng)的電纜，特別適用于在安裝位置受到限制，或風(fēng)管在有一定高度的地方。如果需要用于現(xiàn)場(chǎng)指示，可選LED顯示。
Service: Clean Air And Compatible, Non-Combustible Gases.
Accuracy: 3% FS Process Gas: 32 To 122°F (0 To 50°C); 4% FS Process Gas: -40 To 32°F & 122 To 212°F (-40 To 0°C & 50 To 100°C).
Response Time: Flow: 1.5 Seconds To 95% Of Final Value (Output Filter Set To Minimum).
Temperature Limits: Process: -40 To 212°F (-40 To 100°C). Ambient: 32 To 140°F (0 To 60°C).
Pressure Limit: 100 Psi (6.89 Bar) Maximum.
Humidity Limit: Non-Condensing.
Power Requirements: 12-35 VDC, 10-16 VAC. 1.5 A Rating Required On Supply Due To Initial Power Surge Drawn By Transmitter.
Output Signal: 4-20 MA, Isolated 24V Source, 3 Or 4-Wire Connection.
Output Filter: Selectable 0.5-15 (Seconds).
Loop Resistance: 600 Ohms Max.
Current Consumption: 300 MA Max.
Electrical Connections: Screw Terminal.
Mounting Orientation: Unit Not Position Sensitive. Probe Must Be Aligned With Airflow.
Weight: 13.2 Oz (374.26 G).
Cable Length: 6 Ft (1.82 M).
Probe Length: 12" (30.48 Cm) Standard.
Probe Diameter: 5/16" (0.79 Cm).
OPTIONAL DISPLAY VERSION:
Display: 4-1/2 Digit 1/2" Red LED.
Resolution: 1 FPM, 0.01 MPS (10 FPM @ 10,000 And 15,000 FPM Ranges).
Weight: 13.9 Oz (394.16 G).
應(yīng)用：
• 潔凈室供新風(fēng)
• 暖通空調(diào)系統(tǒng)風(fēng)速測(cè)量
• 風(fēng)機(jī)供排風(fēng)記錄
• 保證實(shí)驗(yàn)室風(fēng)柜正常通排風(fēng)
