641RM系列 Dwyer 641RM系列 分体式风速变送器

品牌：dwyer [品牌查询]
产品描述：
测量空气及兼容的非易燃性气体；16种现场可选量程：0～1.25m/s到0～75.0m/s；精度：±3%FS；输出：4～20mA；远程安装；可选LED现场显示

641RM系列 分体式风速变送器用于监测风速。它采用热式原理来精确测量风速。641系列有16种量程范围供选择从0-250 - 15,000 FPM (0-1.25 - 75 MPS)，使其广泛地应用于多种应用场合。传感器和探头之间6英尺长的电缆，特别适用于在安装位置受到限制，或风管在有一定高度的地方。如果需要用于现场指示，可选LED显示。

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).
应用：

• 洁净室供新风

• 暖通空调系统风速测量

• 风机供排风记录

• 保证实验室风柜正常通排风