In-Duct Hot-wire Anemometer - STA2

The Fieldpiece Voltage Accessory, model AVH1, is designed for use with our data logger model DL3 to record voltage over a period of time or with our EHDL1 electronic handle to get the MIN or Max while freeing up your meter for other tests.User's Manual

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Features and Benefits

Competitive Advantages

What's Included?

Specifications

 

 

 

 

What is It?

The STA2 is a Hot-wire Anemometer built for the HVACR professionals' air balancing needs.  The compact probe tip makes measuring air velocity directly in the duct a breeze.  It's great for traversing a duct and automatically calculating CFM without the hassle and expense of a bulky hood.  The 38" telescoping probe's laser etched ruling and flattened edges allows techs to locate proper measurement points within a duct, and ensures that the probe is properly aligned. 

Features and Benefits

This in duct hot-wire anemometer quickly calculates CFM from air velocity and free area.  And with the intuitive interface, the STA2 makes it easy to capture the correct data.
  • Measures air velocity and temperature
  • Calculates CFM
  • Slim 38" telescoping probe for in duct traversing
  • Fast response time
  • Dual display for combo of real-time CFM, air velocity, or temp
  • Depth and direction indicators
  • Minimizes turbulence effect with time/test point averages
  • Hands-free testing with stabilizing cone and magnetic hanger

Competitive Advantageshot wire anemometer

As the newest addition to the family of test tools HVACR professionals trust to do more, the STA2 In-Duct Hot Wire Anemometer is a great alternative to costly bulky hoods.  With ease, techs can input free area, and the STA2 automatically averages multiple test points and continually calculates and displays CFM. 

 

What's Included

  • Hot-wire anemometer - STA2
  • Stabilizing cone
  • Blow-molded case with padding

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Specifications

TECHNICAL SPECIFICATIONS
Accuracy: Stated accuracy @ 73°F±9°F (23°C±5°C), <90%RH
Temperature coefficient:  0.1 x (specified accuracy) per °C for 0°C to 18°C, 28°C to 50°C (32°F to 64°F, 82°F to 122°F)
Operating environment: -4°F to 122°F (-20°C to 50°C) at <75%RH
Storage temperature: -4°F to 140°F (-20°C to 60°C), 0 to 80% RH (with battery removed)
Battery:  9V
Battery life:  20-35 hours approx. (alkaline)
Battery indication:   is displayed when the battery voltage drops below the operating level
Auto Power off: after 15 minutes of inactivity if APO is active
Over range:  "OL" or "-OL" is displayed
Dimensions: 7.2 in (H) x 2.5 in (W) x 1.3 in (D) [185mm (H) x 65mm (W) x 35mm (D)]
Weight: 12 oz. (340g) including battery

Velocity
Sensor type:  Micro-glass bead thermistor
Resolution: 1 fpm (0.01 m/s)
Range:  40-3960 fpm (0.20-20.00 m/s)
Accuracy: ± (5%+1 dgt) reading or ± (1%+1dgt) full scale
Units: fpm, m/s, km/hr, mph

Temperature
Sensor type:  Precision Thermistor
Range: -4°F to 140°F (-20°C to 60°C)
Resolution: 0.1°C, 0.1°F
Accuracy:
±1.0°F for 32°F to 113°F
±2.0°F for -4°F to 32°F, 113°F to 140°F
±0.5°C for 0°C to 45°C
±1.0°C for -20°C to 0°C, 45°C to 60°C
 

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Display: 3 1/2 digit liquid crystal display (LCD) with maximum reading of 1999. 

Overrange: (OL) or (-OL) is displayed.

Low battery indication: The battery symbol is displayed when the battery voltage drops below the operating level.

Measurement rate: 2.5 times per second, nominal.

Operating Environment: 0°C to 40°C at < 70% relative humidity.

Storage Temperature: -20°C to 60°C, 0 to 80% R.H. with battery removed from meter.

Auto power off: 15 seconds approx.

Standby consume current: <10μA

Battery: 4 pcs 1.5V (AAA size) UM-4 R03. 

Battery Life: 4 hours (continuity) typical with alkaline battery (@20ÌÙ range test 10ÌÙ resistor). 

Dimensions: 170mm(H) x 44mm(W) x 40mm(D). 

Weight: 160g including batteries.

 

ELECTRICAL

Range: 20MW, 2000 MW.

Resolution: 10K W on 20MW range, 1 MW on 2000 MW range.

Accuracy:

20 MW range: ±(2%rdg + 2dgts)

2000 MW range: <500ÌÙ ±(4%rdg + 2dgts)

>500 MW ±(5%rdg + 2dgts)

Rated voltage: DC-DC converter to 1000VDC

Accuracy temperature: 23°C ± 5°C less than 70%RH

Temperature Coefficient: 0.1X (specified accuracy)/°C (28°C)