Extech 407123 Heavy Duty Hot Wire Thermo-Anemometer

$932.14

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Extech 407123 Heavy Duty Hot Wire Thermo-Anemometer This meter measures air flow and temperature by placing the sensor into an airway such as a duct or a vent. The sensor is situated at the end of the telescoping wand for convenience and has a protective cover that slides up and down. The meter includes an RS-232 PC Interface jack for use with the Model 407001 Data Acquisition software and interface cable kit. 

 

Features

  • 407123 Heavy Duty Hot Wire Thermo-Anemometer
  • Telescoping probe is ideal for measuring in HVAC ducts and other small vents
  • Probe extends up to 4ft (1.22m)
  • Measure airflow down to 40ft/min
  • Super large 1.4" (36mm) dual LCD display
  • Min/Max, Data Hold
Extech 407123 Heavy Duty Hot Wire Thermo-Anemometer.

Hot Wire Thermo-Anemometer
This Heavy Duty Hot Wire Thermo-Anemometer uses a telescoping probe (extends up to four feet) with a 0.5 inch diameter sensor that's ideal for use in ducts and ventilating systems.
Applications

  • HVAC installation, repair, diagnostics, and optimization
  • Positive pressure tests in clean rooms
  • Fume hood testing, installation, and verification
  • Automobile engines analysis, passenger compartment tests, and aerodynamic testing
  • Ionizer flow output monitoring
  • Ventilation system installation, servicing, and analysis
  • Environmental wind and temperature testing/analysis
  • Boiler rooms
  • Plant/Facilities Maintenance.

How Does An Anemometer Measure Moving Air?
Anemometers measure moving air with a rotary sensor that acts very much like a weathervane and can be likened to the blades of a fan. The vane freely rotates in response to airflow, and as the air moves through the vane the blades turn in proportion to the speed of the air.

What Is CFM / CMM?
Cubic Feet per Minute (CFM) or Cubic Meters per Minute (CMM) are units of measure for air volume measurements. This is a measurement of the quantity of moving air through an air duct, passageway, or enclosure. In order to determine this, the area of the duct must be measured. The area value (in ft2 or m2) is entered by the user, by pushbutton or keypad into the meter and an air velocity is determined.

What Is The Difference Between Vane And Hot-Wire Anemometers?
Vane Anemometers use a remote fan (vane) that freely rotates in response to air flow. The vane movement equates to air velocity readings that can be displayed on a meter. The Hot Wire Anemometer sensor is a special wire whose resistance fluctuations are translated into air velocity readings that can be displayed on a meter.

Which Applications Are Best For Vane And Hot-Wire Types?
Hot-Wire Anemometers offer a slim sensor (0.5" diameter), well suited for accessing small openings and crevices (engine compartments and small ventilating systems). Hot-Wire Anemometers don’t have vulnerable, movable mechanical parts that can wear or become damaged over time. Vane Anemometers are lower cost and allow easy visual inspection of the moving vane (great for air duct and fume hood applications).

 

Specifications

General Specifications
Circuit configuration Custom one-chip LSI microprocessor circuit
Display 3-1/2 digit (2000 count) dual LCD display
Measurements m/s (meters per second), km/h (kilometers per hour), ft/min
(feet/per minute), knots (nautical miles per hour), MPH (miles per hour), °C, °F
Data hold Freezes reading on display
Sensor Structure Air velocity sensor: Glass bead thermistor
Temperature sensor Precision thermistor
Min/Max Recording Record and Recall Maximum (MAX) and Minimum readings
PC Interface RS 232 PC serial interface jack for use with Model 407001 software and interface cable kit
Operating Temperature 32 to 122°F (0 to 50 °C)
Operating Humidity Max. 80% RH
Power Supply Six 1.5V ‘AAA’ batteries
Power Consumption Approx. 30 mADC
Weight 0.78 lb (355 g) including batteries & probe
Dimensions Main instrument 7.1 x 2.8 x 1.3” (180 x 72 x 32 mm)
Sensor 0.5” (12mm) diameter
Telescope 3.9’ (1.22m) maximum length with cable.
m/s
Range 0.2 to 20.0 m/s
Resolution 0.1 m/s
Accuracy ± (3% + 1d) of reading or ±(1% + 1d) Full Scale
(whichever is greater)
km/h
Range 0.7 to 72.0 km/h
Resolution 0.1 km/h
Accuracy ± (3% + 1d) of reading or ±(1% + 1d) Full Scale
(whichever is greater)
ft/min
Range 40 to 3940 ft/min
Resolution 1 ft/min
Accuracy ± (3% + 1d) of reading or ±(1% + 1d) Full Scale
(whichever is greater)
MPH
Range 0.5 to 45.0 MPH
Resolution 0.1 MPH
Accuracy ± (3% + 1d) of reading or ±(1% + 1d) Full Scale
(whichever is greater)
knots
Range 1.0 to 31.0 knots
Resolution 0.1 knots
Accuracy ± (3% + 1d) of reading or ±(1% + 1d) Full Scale
(whichever is greater)
Temperature
Range 32 to 122°F (0 to 50°C)
Resolution 0.1°F and °C
Accuracy 1.5°F (0.8°C)

 

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    • Extech 407123 Heavy Duty Hot Wire Thermo-Anemometer