668系列 微差壓變送器-德威爾Dwyer
668系列 微差壓變送器能夠測(cè)量很微小的差壓，精度達(dá)到1%，非常適合用于室內(nèi)壓力，風(fēng)壓等的監(jiān)測(cè)。它能承受10 psig的靜壓也不會(huì)損壞儀表。可變電容式的傳感器具有靈敏度高，穩(wěn)定耐用等特點(diǎn)。尺寸小，重量輕使得安裝容易。此變送器帶有反向保護(hù)功能。
Service: Air and non-conductive gases.
Accuracy: ±1% FS (RSS), (includes non-linearity, hysteresis, and non-repeatability).
Temperature Limits: Operating: 0 to 150°F (-18 to 65°C), Storage: -40 to 185°F (-40 to 85°C).
Pressure Limits: 10 psig (0.69 bar).
Compensated Temperature Range: 0 to 150°F (-18 to 65°C).
Thermal Effects: 0.033% FS/°F (0.18% FS/°C).
Supply Voltage: 12 to 30 VDC.
Output: 4 to 20 mA, 2-wire.
Zero and Span Adjustment: ±1 mA, non-interactive.
Response Time: <60 msec.
Loop Resistance: 0 to 800 Ω.
Electrical Connection: Terminal strip.
Pressure Connection: 3/16" OD fitting for 1/4" ID tubing.
Housing: Fire retardant glass filled polyester.
Weight: 3 oz (85 g).
Agency Approval: CE.
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