Air Velocity Transmitters

High Accuracy, Field Selectable Ranges

Description

The Series 641 Air Velocity Transmitters are the ideal instrument for monitoring air
flow. This transmitter uses a heated mass flow sensor which allows for precise velocity measurements at various flow rates and temperatures. The 641’s 16  field-selectable ranges provides it the versatility to be selected for several air flow applications. The optional LED produces a complete, low-cost solution for local indication of air flow.

Features

• Ranges from 250 FPM (1.25 MPS) to 15,000 FPM (75 MPS)
• Optional bright LED display
• Easy push-button set-up
• Compact housing
• 4-20 mA output
• Digital filter for signal damping