Description
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.
- 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.
- Pressure Limits:See chart on catalog page.
- 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.
- Resolution:See chart on catalog page.
- 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.
Hydronic meter kit includes: (2) six foot high-pressure rated tubing with shut off valves, high pressure 3-way valve, 8 ft poly tubing for purges, hard travel case, handheld carrying strap, 1/16" x 1 1/2", 1/8" x 3" and 1/8" x 1-1/2" pairs of pressure probes, 90° Flare to 1/4" NPT fittings, adjustable 8" wrench, PTFE Tape, and magnetic protective rubber boot. NIST Calibration Certificate comes standard.










