Wet/Wet HH Digital Manometer 0-500PSI


Product Highlights

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.

  • 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
Service: Compatible gases & liquids.
Wetted Materials: Without valve: 316L SS, -3V option: 316LSS, Buna-N, silicone, grease, PTFE, brass 360, copper, reinforced acetal copolymer.
Accuracy: ±0.5% FS, 60 to 78°F (15.6 to 25.6°C); ±1.5% FS from 32 to 60°F and 78 to 104°F (0 to 15.6°C and 25.6 to 40°C).
Pressure Hysteresis: ±0.1% FS.
Electronic Temperature Limits: 32 to 140°F (0 to 60°C).
Storage Temperature Limits: -4 to 176°F (-20 to 80°C).
Display: 0.42" (10.6 mm) 4 digit LCD.
Power Requirements: 9 V alkaline battery, installed non-functional, user replaceable.
Process Connections: Two 1/8" (3.18 mm) female NPT.
Weight: 14.1 oz (400 g).
Agency Approvals: CE

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