Dwyer德威尔477AV-4_477AV-5_477AV-6_477AV-7_477AV-8手持式数字压差计

Dwyer德威尔477AV-4_477AV-5_477AV-6_477AV-7_477AV-8手持式数字压差计

Dwyer德威尔477AV-4_477AV-5_477AV-6_477AV-7_477AV-8手持式数字压差计

Service: Air and compatible gases.

Wetted Materials: Consult factory.

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 40.0°C).

Pressure Hysteresis: ±0.1% of fullscale.

Pressure Limits: See chart.

Temperature Limits: 0 to 140°F (-17.8

to 60°C).

Compensated 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.

Units of Pressure: in w.c., ft. w.c., in Hg,

psi, oz/in2, mm w.c., cm w.c., mm Hg,

mbar, Pa, kPa, hPa.

Units of Velocity: fpm, fps, mph, m/h,

m/s, k/h, knot.

Units of Flow: cfm, m3/h, m3/s.

Power Requirements: 9 V Alkaline

battery, installed non-functional, user

replaceable.

Weight: 10.2 oz (289 g).

Process Connections: Two barbed

connections for use with 1/8? (3.18

mm) or 3/16? (4.76 mm) ID tubing. Two

compression fittings for use with 1/8?

(3.18 mm) ID x 1/4? (6.35 mm) OD tubing

for 477AV-7 and 477AV-8 only.

Agency Approvals: CE.

Dwyer德威尔477AV-4_477AV-5_477AV-6_477AV-7_477AV-8手持式数字压差计