美国Dwyer德威尔490A-1_490A-2_490A-3_490A-4_490A-5_490A-6压差计
美国Dwyer德威尔490A-1_490A-2_490A-3_490A-4_490A-5_490A-6压差计
The SERIES 490A Hydronic Differential Pressure Manometers are versatile, handheld,
battery operated manometers available in several basic ranges for positive
or positive differential pressure measurement and can tolerate most liquid media
compatible with 316LSS.
A new feature added to the Series 490A is a field adjustable damping, which allows
the user to choose the level of display averaging rate corresponding to the fluctuation
level common in many applications.
FEATURES/BENEFITS
? Up to 0.5% accuracy
? Seven user-selectable English and metric units
? Stores up to 40 readings for later recall
? Backlight for use in dim areas
? Digital dampening for low pressure - high resolution logging stability
? Automatic resolution adjustment for finer control
APPLICATIONS
? Chiller to coils for freeze protection
? Hydronic valve balancing
? Measure pressure drop across pumps
? Valves to determine valve position
美国Dwyer德威尔490A-1_490A-2_490A-3_490A-4_490A-5_490A-6压差计