Digital: Series 477B DWYER

Specification

Service:	Air and compatible gases.
Wetted Materials:	Consult factory.
Accuracy:	±0.10% of full scale from 60 to 78F° (15.6 to 25.6°C); ±1% of full scale from 32 to 60 and 78 to 104°F (0 to 15 .6 and 25.6 to 40°C).
Pressure Hysteresis	±0.1% of full scale.
Pressure Limits:	See chart on catalog page.
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:	4-digit LCD (.425" H x .234" W digits).
Resolution	See chart on catalog page.
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) I.D. tubing for 477B-1, 477B-2, 477B-3, 477B-4 and 477B-5 only. Two compression fittings for use with 1/8" (3.18 mm) I.D. x 1/4" (6.35 mm) O.D. tubing for 477B-6 and 477B-7 only.
Agency Approvals:	CE

Description: The Series 477B Handheld Digital Manometers are versatile, hand-held, battery operated manometers available in several basic ranges from 0-20 in w.c. up to 100 psi. All models measure either positive, negative or differential pressures with ±0.10% of full scale accuracy. You can select from up to seven common English and metric pressure units so conversions are not necessary. A memory function allows storage of up to 40 readings for later recall and a backlight provides auxiliary lighting for hard-to-see locations. Also standard are a hold feature plus both visual and audible overpressure alarms. Posted by Lam Thanh