679壓力變送器與各種氣體和液體兼容，是專門為NEMA 4 (IP56)耐候服務(wù)設(shè)計的。 679型可以測量壓力，其精度為±.25%。 這種模式提供4-20毫安輸出和現(xiàn)場可調(diào)
Service:Corrosive liquids and gases.
Accuracy:±.25% FS (includes non-linearity, hysteresis and non-repeatability).
Pressure Limits:See Catalog page.
Output:4-20 mA, 2-wire.
Supply Voltage:9-30 VDC.
Loop Resistance:800 ohms.
Zero and Span Adjustment:±15%, non-interactive.
Stability:Less than .5% FS/year.
Temperature Limits:-40 to 260°F (-40 to 125°C) 10 to 90% RH, non-condensing.
Compensated Temperature Range:-4 to 176°F (-20 to 80°C).
Pressure Connection:1/4" male NPT.
Wetted Parts:Corrosive resistant 17-4 PH Stainless Steel.
EnclosureAluminum.
Electrical Connections:Two 1/2" conduit ports.
Weight:13.4 oz (380 g).Agency Approvals:CE.
Model Description
679-0 Weatherproof pressure transmitter, range 0-25 psi, overpressure 100 psi.
679-1 Weatherproof pressure transmitter, range 0-50 psi, overpressure 150 psi.
679-2 Weatherproof pressure transmitter, range 0-100 psi, overpressure 300 psi.
679-3 Weatherproof pressure transmitter, range 0-250 psi, overpressure 500 psi.
679-4 Weatherproof pressure transmitter, range 0-500 psi, overpressure 1000 psi.
679-5 Weatherproof pressure transmitter, range 0-1000 psi, overpressure 2000 psi.
679-6 Weatherproof pressure transmitter, range 0-3000 psi, overpressure 4500 psi.
679-7 Weatherproof pressure transmitter, range 0-5000 psi, overpressure 7500 psi.
679-8 Weatherproof pressure transmitter, range 0-10000 psi, overpressure 12000 psi.
