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（联系我时，请说明是在来宝网上看到的，谢谢！）美国Dwyer德威尔477B-1_477B-2_477B-3_477B-4_477B-5_477B-6_477B-7压差计
美国Dwyer德威尔477B-1_477B-2_477B-3_477B-4_477B-5_477B-6_477B-7压差计
Service: Air and compatible gases.
Wetted Parts: Consult factory.
Accuracy: ±0.10% of full scale from 60 to 78F° (15.6 to 25.6°C); ±1% of full scale from 32 to 60 and 78 to 104°F (0 to 15 .6 and 25.6 to 40°C).
Pressure Hysteresis: ±0.1% of full scale.
Pressure Limits: See chart on catalog page.
Temperature Limits: 0 to 140°F (-17.8 to 60°C).
Storage Temperature Limits: -4 to 176°F (-20 to 80°C).
Display: 4-digit LCD (.425" H x .234" W digits).
Resolution: See chart on catalog page.
Power Requirements: 9 volt alkaline battery. Battery included but not connected.
Weight: 10.2 oz. (289 g).
Connections: Two barbed connections for use with 1/8" (3.18 mm) or 3/16" (4.76 mm) I.D. tubing for 477B-1, 477B-2, 477B-3, 477B-4 and 477B-5 only. Two compression fittings for use with 1/8" (3.18 mm) I.D. x 1/4" (6.35 mm) O.D. tubing for 477B-6 and 477B-7 only.
Agency Approvals: CE.
美国Dwyer德威尔477B-1_477B-2_477B-3_477B-4_477B-5_477B-6_477B-7压差计
