Series 476A Single Pressure & Series 478A Digital Manometer

Series 476A Single Pressure & Series 478A Digital Manometer

Series 476A Single Pressure & Series 478A Digital Manometer

Single & Dual Pressure Measurement, Electronic Zeroing, ±1.5% Accuracy

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. Both units are constructed of an extruded aluminum case for exceptional durability.

Product Applications

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

ModelDescription

• 476A-0Digital manometer, range -20 to 20" w.c.
• 478A-0Digital differential manometer, range -4 to 4" w.c.
• 478A-1Digital differential manometer, range -60 to 60" w.c.

Specifications

• Service:Air and compatible gases.
• Wetted Materials:Consult factory.
• Accuracy:±1.5% FS @ 72°F (22.2°C). Includes linearity and repeatability.
• Pressure Hysteresis:±0.1% of FS.
• Pressure Limits:5 psig (.34 bar).
• Temperature Limits:0 to 140°F (-17.8 to 60°C).
• Compensated Temperature Limits:32 to 104°F (0 to 40°C).
• Thermal Effect:0.05% F.S./°F.
• Display:4 digit LCD (.425"H x .234"W digits).
• Power Requirements:9 V alkaline battery, installed non-functional, user replaceable.
• Process Connections:Barbed connection for use with 3/16" or 1/4" I.D. tubing.
• Weight:10.8 oz (306 g).
• Agency Approvals:CE.

Features

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

Accessories

Model NumberDescription

• A-201Rubber latex tubing has less tendency to kink in storage and occupies less space, thus is best for portable work. 3/16" ID, 9' length.
• A-47X-BOOTRubber boot for manometers (manometer not included).

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