CATEGORIES
DWYER 478A-1
DIGITAL DIFFERENTIAL MANOMETER, RANGE -60 TO 60" W.C.
. Measure Positive and Negative Pressures.
. One-Button Auto-Zero Function.
. Auto Power Off.
. Large, Easy-to-Read Display.
. Extruded Aluminum Case.
. Instant Selection from up to Eight English/Metric Units.
The Series 478A manometer can be used to measure positive, negative, or differential pressures. The unit features selectable units, auto zero, hold and a Min/Max function. Press the Hold key to freeze the current pressure measurement on the display. The 478A manometer includes a zeroing button to null out any minor pressure differences.
SPECIFICATIONS
Service: Air and compatible gases.
Wetted Materials: Consult factory.
Accuracy: ±1.5% F.S. @ 72°F (22.2°C). Includes linearity and repeatability.
Pressure Hysteresis: ±0.1% of F.S.
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.