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Dwyer Series
490

Wet/Wet Handheld Digital Manometer
Liquid & Gas Pressure Measurement, ±0.5% F.S. Accuracy

SPECIFICATIONS
Service: Compatible gases & liquids.
Wetted Materials: Type 316L SS.
Accuracy: ±0.5% F.S., 60 to 78°F (15.6 to 25.6°C); ±1.5% F.S. 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% of full scale.
Pressure Limits: See chart on "Ordering" page.
Temperature Limits: 32 to 104°F (0 to 40°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 "Ordering" page.
Power Requirements: 9 volt alkaline battery. Battery included but not connected.
Weight: 14.1 oz (400 g).
Connections: Two 1/8" (3.18 mm) female NPT.
Agency Approvals: CE.

PRESSURE UNITS AVAILABLE
Model
Number
bar psi in Hg kPa in w.c. mm Hg mbar
490-1 1.034 15.00 30.54 103.4 415.2 775.7 1034
490-2 2.069 30.00 61.08 206.9 830.4 1551 2069
490-3 3.447 50.00 101.8 344.7 1384 2585 3447
490-4 6.895 100.0 203.6 689.5 2768 5171 6895
490-5 34.47 500.0 1018 3447      

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