Dwyer 477 Series offre

Caractéristiques

• Instant Selection from up to Nine English/Metric Units
• Stores 40 Readings in Memory for Later Reference
• Measures Positive, Negative or Differential Pressures
• Large Easy-to-Read 0.4" LCD Display Includes Switchable Backlight for Great Visibility - Anywhere!
• Both Audible and Visual Overpressure Alarms
• Includes + and - Indicators plus Low Battery Warning
• Operates up to 100 Hours on a Single 9 Volt battery

Functional Specifications

• Service: Air and compatible combustible gases
• Accuracy: ±0.5% F.S., 60 to 78°F (15.6 to 25.6°C); ±1.5% F.S. 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% of full scale
• Temperature Limits: 0 to 140°F (-17.8 to 60°C)
• Compensated Temperature Limits: 32 to 104°F (0 to 40°C)
• Display: 0.42" (10.6 mm) 4-digit LCD
• Response Time: 1 second
• Connections: Two barbed connections for use with 1/8" (3.18 mm) or 3/16" (4.76 mm) I.D. tubing. Two compression fittings for use with 1/8" (3.18 mm) I.D. x 1/4" (6.35 mm) O.D. tubing for 477-7-FM & 477-8-FM only

General Specifications

• Power Requirements: 9 volt alkaline battery. Battery included but not connected
• Weight: 10.2 oz (289 g)

Applications

• Field calibration
• Monitoring or trouble shooting HVAC/R systems
• Clean room checks
• Air velocity monitoring with Dwyer Pitot tube
• Natural gas appliance line pressure