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Brand: Dwyer InstrumentsSKU: 641-6-LED

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641-6-LED | Air velocity transmitter | 6" (152.4 mm) probe length | with LED display. | Dwyer Instruments

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Documents and manuals

Dwyer Instruments 641-6-LED Documents

Instruction Manual Series 641 Catalog Page 641 More Info

Overview

Details for 641-6-LED

The Dwyer Instruments NCO-641-6-LED AV Transmitter is a highly precise and reliable instrument designed for industrial applications. Featuring a 6" probe with a digital display, this transmitter provides accurate measurement and transmission of various process variables. Key Features: * Durable construction with IP67-rated housing for harsh environments * Interchangeable probes for measuring temperature, pressure, humidity, and more * Modbus RTU communication for seamless integration with control systems * Transmitter resolution of 0.1% of full-scale, ensuring accurate measurements * LCD display with programmable calibration and alarm settings Benefits: * Enhanced process control and monitoring through precise measurement and transmission * Reduced downtime and maintenance costs due to rugged construction and interchangeable probes * Improved efficiency and productivity via Modbus RTU communication * Increased product quality and safety by providing accurate data for process control Applications: * Temperature monitoring in industrial processes * Pressure measurement in pneumatic and hydraulic systems * Humidity control in environmental chambers * Flow measurement in various industries Shop our HVAC supply store now for the best prices and fast shipping on the Dwyer Instruments NCO-641-6-LED AV Transmitter. Our commitment to quality and customer satisfaction ensures you receive the highest-quality products and exceptional service.

Series 641 Air Velocity Transmitter

High Accuracy, Field Selectable Ranges

The Series 641 Air Velocity Transmitter is 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.

NIST CALIBRATION available in Product Configurator.

Product Applications

Exhaust stack flow monitoring
Air control in drying processes
HVAC air velocity measurements
Fan supply and exhaust tracking
Clean room fresh air supply
Ensure proper lab hood exhaust flow rates

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 to 20 mA output
Digital filter for signal damping

Specifications

Series: 641 Air Velocity Transmitter
Category/Type: Air Velocity
Type: Air Velocity Transmitter
Series: 641 Air Velocity Transmitter
Service: Clean air and compatible; non-combustible gases.
Accuracy: 3% FS Process gas: 32 to 122°F (0 to 50°C); 4% FS Process gas: -40 to 32°F & 122 to 212°F (-40 to 0°C & 50 to 100°C).
Response Time: Flow: 1.5 s to 95% of final value (output filter set to min.).
Temperature Limits: Process: -40 to 212°F (-40 to 100°C). Ambient: 32 to 140°F (0 to 60°C).
Pressure Limit: 100 psi (6.89 bar) maximum.
Humidity Limit: Non-condensing.
Power Requirements: 12 to 35 VDC; 10 to 16 VAC. 1.5 A rating required on supply due to initial power surge drawn by transmitter.
Output Signal: 4 to 20 mA; isolated 24 V source; 3 or 4-wire connection.
Output Filter: Selectable 0.5-15 s.
Loop Resistance: 600 Ω max.
Current Consumption: 300 mA max.
Electrical Connections: Screw terminal.
Process Connections: 1/2" male NPT.
Enclosure Rating: Designed to meet NEMA 4X (IP66) for non LED models only.
Mounting Orientation: Unit not position sensitive. Probe must be aligned with airflow.
Weight: 12.6 oz (357.2 g).
Agency Approvals: CE.
OPTIONAL DISPLAY VERSION
Display: 4-1/2 digit 1/2" red LED.
Resolution: 1 FPM; 0.01 MPS (10 FPM @ 10;000 and 15;000 FPM ranges).
Weight: 13.3 oz (377 g).