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The Series 476A Single Pressure Differential Pressure Digital Manometer can be used to measure low pressures from -20 to 20 in w.c. with ±1.5% FS accuracy. The Series 478A Single Pressure Differential Pressure Digital Manometer can be used to measure positive, negative, or differential pressures with ±1.5% full-scale accuracy. Both units are constructed of an extruded aluminum case for exceptional durability.

Product Applications

• Verify field instrumentation performance
• Adjust fuel mixture on combustion systems

Features

• ±0.5% FS accuracy
• Rugged extruded aluminum housing
• One button auto-zero function
• Auto power off function to conserve battery life
• Instant selection of up to nine English/metric units

Specifications

Series 476A

• Single Pressure
• Service : Air and compatible gases.
• Accuracy : ±1.5%
• Pressure Limits : 5 psig (.74 bar).
• Temperature Limits : 0 to 140°F (-17.8 to 60°C).
• Display : 4 digit LCD
• Power Requirements : 9 V alkaline battery, installed non-functional, user replaceable.

Series 478A

• Single Pressure Differential Pressure
• Service : Air and compatible gases.
• Accuracy : ±1.5%
• Pressure Limits : 5 psig (.74 bar).
• Temperature Limits: 0 to 140°F (-17.8 to 60°C).
• Display : 4 digit LCD
• Power Requirements : 9 V alkaline battery, installed non-functional, user replaceable.

Models & Ordering