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:
- Accuracy: +/- 0.5% FS, 60 to 78F (15.6 to 25.6C); +/- 1.5% FS from 32 to 60F and 78 to 104F (0 to 15.6C and 25.6 to 40C).
- Temp Rating: 32 – 140 F
- Process Connections: Two 1/8″ FNPT
- Power Requirements: 9V alkaline battery
Product Applications:
- Chiller to coils for freeze protection.
- Hydronic valve balancing.
- Refrigerant pressure testing.
- Measure pressure drop across pumps.
