Dwyer 476A 478A型数显压力计差压计

Dwyer 476A 478A型数显压力计差压计

数显压力计和478A系列数显差压计

单压或差压测量，电子调零，精度为±1.5%476A和478A型

476A型 数显压力计 最适用于实验室或研究机构，它为单压测量，范围从-20到20英寸水柱，精度为1.5%。它是为暖通空调工程公司而设计，可用于调整供风压力，校准和设定压力开关，调整减压器，系统平衡测试等。采用铝合金外壳，牢固耐用。

478A系列数显差压计可用于测量正压，负压或差压。它的功能包括：可选工程单位，自动较零，数据保持，峰谷值记录。按住Hold保持键可将当前数据保持显示。478A带有零点按键可随时较零。

Service: Air and compatible gases.

Wetted Materials: Consult factory.

Accuracy: ±1.5% FS @ 72°F (22.2°C). Includes linearity and repeatability.

Pressure Hysteresis: ±0.1% of FS.

Pressure Limits: 5 psig (.34 bar).

Temperature Limits: 0 to 140°F (-17.8 to 60°C).

Compensated Temperature Limits: 32 to 104°F (0 to 40°C).

Thermal Effect: 0.05% F.S./°F.

Display: 4 digit LCD (.425"H x .234"W digits).

Power Requirements: 9 V alkaline battery, installed non-functional, user replaceable.

Process Connections: Barbed connection for use with 3/16" or 1/4" I.D. tubing.

Weight: 10.8 oz (306 g).

Agency Approvals: CE.

Dwyer 476A 478A型数显压力计差压计