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* 美国德威尔 dwyer 607系列微差压变送器 *
精度为±0.25%或±0.5%，量程从0-0.1英寸水柱起
607系列 微差压变送器能够测到非常微小的差压，并具有优良的稳定性和可靠性，精度有±0.25%或±0.5%，测量范围从0-0.1到0-25英寸水柱，用途广泛。超薄的玻璃纤维覆膜硅膜片可耐受振动或颤动，消除漂移。每个变送器都带有NIST溯源证书。NEMA-2防护等级，坚固的不锈钢外壳可保护其不受水份和灰尘的影响。它可用于空气和其它兼容气体。
Service: Air and nonconductive, noncorrosive gases.
Wetted Materials: Consult factory.
Accuracy: ±0.5% or ±0.25% F.S.
Stability: ±0.5% F.S.O./yr.
Temperature Limits: -20 to 160°F (-29 to 71°C), 10 to 95% RH.
Pressure Limits: 10 psig (0.69 bar).
Compensated Temperature Range: 35 to 135°F (2 to 57°C).
Thermal Effects: ±0.015% F.S./°F (zero and span).
Power Requirements: 12-36 VDC.
Output Signal: 4 to 20 mA DC, 2-wire.
Zero and Span Adjustments: Externally accessible potentiometers, non-interactive, ±10% F.S. adjustment.
Response Time: 250 msec max.
Loop Resistance: 0 to 1045 ohms Vmin=12V+[(.22A)(RL)].
Current Consumption: 3.6 mA (min).
Electrical Connections: Screw terminals.
Process Connections: Barbed stainless steel for 3/16" I.D. tubing.
Housing: 300 Series stainless steel (NEMA 2).
Weight: 1.04 lb (472 g).
Agency Approvals: CE.
