上海顿涛信息科技有限公司
上海顿涛信息科技有限公司
单压或差压测量，电子调零，精度为±1.5%
476A型 数显压力计 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。
技术参数 ：
Service: Air and compatible gases.
Wetted Materials: Consult factory.
Accuracy: ±1.5% Full Scale @ 72°F (22.2°C). Includes linearity and repeatability.
Pressure Hysteresis: ±0.1% of Full Scale.
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.
产品选型 ：
选项及配件 ：
●A-402A - Nylon carrying pouch for various digital manometers - 7-1/2" x 3" x 2-1/4".
UHH-C1 - Soft carrying case
●A-201 - Rubber latex tubing has less tendency to kink in storage and occupies less space, thus is best for portable work. 3/16" ID, 9' length.
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