The Model 478-0. Single Pressure Digital Manometer measures low pressures from -20 to 20" w.c. with ±1.5 % full scale accuracy. Designed especially for the HVAC contractor, the Model 476-0 can be used to set gas supply pressures, verify pressure switch operation, adjust regulators, check pneumatic systems and check computer peripherals. It features electronic zeroing to null out any minor pressure differences and auto power off after five minutes to conserve battery life.
Features:
Positive or negative pressure measurements
Auto power off
Zero function for offset measurements
Large, easy-to-read display
Extruded aluminum case
Specifications:
Service: Air or compatible gases
Resolution: 0.05" from -9.99 to 9.99" w.c.; 0.1" below -10" w.c. & above 10" w.c.
Accuracy: ±1.5% f.s. from 32 to 104°F (0 to 40°C)
Pressure Limits: -20 to 20" w.c. (-50 to 50 mbar)
Temp. Limits: 32 to 104°F (0 to 40°C)
Display: 0.42" (10.6mm) 4-1/2 digit LCD
Connections: One barbed connection for use with 1/8" (3.2mm) or 3/16" (4.8mm) I.D. tubing
Power Supply: 9V alkaline battery, included
Battery Life: Up to 50 hours of operation
Dimensions: 6-9/16 x 2-13/16 x 29/32"
Weight: 10.8 oz (306g)