品牌：dwyer
產(chǎn)品描述：
測(cè)量空氣及兼容的非易燃性氣體；8種現(xiàn)場(chǎng)可選量程：0～1.25m/s到0～10m/s；精度：±5%FS蓬勃發展；輸出：4～20mA特點；NEMA4X外殼

有8種量程供選擇，單位為FPM或MPS
641B系列 風(fēng)速變送器采用熱式質(zhì)量流量傳感技術(shù)發展邏輯∧哿α?？蛇x量程范圍從250 FPM 到 2000 FPM或公制單位1.25 MPS 到 10 MPS。它隔離輸出和風(fēng)速相應(yīng)的4-20mA標(biāo)準(zhǔn)信號(hào)聽得進。

它的金屬傳感器能夠用于空氣質(zhì)量較差的應(yīng)用環(huán)境新的力量。可在現(xiàn)場(chǎng)用軟布清潔便利性，或用空氣吹洗清潔全面展示。它非常容易清潔和維護(hù)的特點(diǎn)使得它能用于環(huán)境比較惡劣，其它類型的傳感器難以勝任的場(chǎng)合深刻認識。

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.

ACCESSORIES:

• A-155 - Cable Gland With 1/2" Male NPT Fitting.
• A-156 - Flange Mounting Plate With 1/2" Female NPT.