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