Dwyer 風速變送器 641B系列

Dirty Air Flow Applications

641B系列風速變送器采用熱式質量流量傳感技術。可選量程范圍從250 FPM 到 2000 FPM或公制單位1.25 MPS 到 10 MPS。

應用及案例

● Exhaust stack flow monitoring

● Air control in drying processes

● HVAC air velocity measurements

● Fan supply and exhaust tracking

● Clean room ventilation monitoring

產品特色技術指標選項配件安裝手冊機構認證尺寸詳圖產品大圖型號列表訂貨選型

產品特色

● SS sensor suitable for dirty air flow measurement

● Ranges from 250 FPM (1.25 MPS) to 2000 FPM (10 MPS)

● 4 to 20 mA output

● Digital filter for signal damping

Service: Air And Compatible, Non-Combustible Gases.

Accuracy: 5% FS Process Gas: 32 To 122°F (0 To 50°C); 6% 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 176°F (-40 To 80°C). Ambient: 32 To 140°F (0 To 60°C).

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.

Enclosure Rating: Designed To Meet NEMA 4X (IP66).

Mounting Orientation: Unit Not Position Sensitive.

Weight: 12.6 Oz (357.2 g).

*A Brief Current Transient Exceeding 300 MA May Be Seen On Startup.