Digital: Series 475 DWYER

Specification

Service:	Air and compatible combustible 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°C).
Pressure Hysteresis:	±0.1% FS.
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
Power Requirements:	9 V alkaline battery, installed non-functional, user replaceable
Weight	10.8 oz (306 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 475-7 & 475-8 only.
Agency Approvals:	CE, FM approved to Class I, Div 2, Groups A, B, C, D, T4 Ta = 70°C.

Description:  The Series 475 Intrinsically Safe Handheld Digital Manometer measures positive, negative, or differential pressures of air and natural gases in ranges from 1 in w.c. (0.249 kPa) to 150 psid (10.34 bar). The dual push pads on the front panel control the on/off, auto zero, and pressure unit selection, allowing for simple operation with no set up needed. When used with a Dwyer® Pitot tube (u), the Series 475 can also be used as an air velocity gage.

Posted by Lam Thanh