The Series GFM3 Gas Mass Flow Meter is an ideal choice for the
measurement of flow rates of a wide variety of gases. This digital flow
meter features a 12-digit totalizer for total gas volume indication, and
is available in the choice of 0 to 5 VDC, 0 to 10 VDC, or 4 to 20 mA
output signals. Standard LCD and four button keypad allows easy
access to the many features of the GFM3. Digital interface operates
through available RS-485 or RS-232, providing access to internal data
parameters and multi-drop capability of up to 255 units (RS-485 only).
Set alarms remotely via digital interface for flow to alert user of high
or low thresholds being exceeded. With a high ±1% FS accuracy and
±0.25% FS repeatability, the GFM3 is the optimal choice in gas flow
metering and monitoring. The GFM3 comes with a NIST traceable
certificate.
Model 264 传感器在全球的安装数量已高达上百万只,是HVAC 楼宇自动化、高精度医药和卫生保健设施中低压差测量应用的“标准”产品。Model 264 型超低差压传感器使用闭端不锈钢焊接电容感应元件,仅要求极小的放大倍率,可为各类关键安装应用提供出色的精度和长期可靠性。Model 264 采用稳固设计,使用黄铜倒钩接头、卡轨安装架、以及可选的导管盖,可实现简单、稳定的安装。特性·**支持10 PSI 超压·安装方便·0~5VDC 或4~20mA 模拟输出·误接线全保护·使用非调整直流电源供电·满足CE 标准应用·暖通空调(HVAC)·能源管理系统·VAV 及风扇控制·洁净工程·OEM·实验室及通风橱控制·烘箱增压及炉通风控制·医疗仪器及设备