679压力变送器与各种气体和液体兼容，是专门为NEMA 4 (IP56)耐候服务设计的。 679型可以测量压力，其精度为±.25%。 这种模式提供4-20毫安输出和现场可调 
 

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.