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Windspeed Ltd (Vector Instruments), 113 Marsh Road, RHYL, N. Wales, LL18 2AB, United Kingdom.
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 Saturday, June 15 2024  Home [arrow]  Products [arrow]  Anemometers [arrow]  A100L2/E, A100L2/H Search site:  

Latest Weather...
(Rhyl, N.Wales, UK)
Wind Speed:  8.0 mph
Wind Direction:  323 °
Air Temp.:  14.8 °C
Rel. Humidity:  73.9 %
Rain (last Hr):  0.0 mm
(updated at: 13:59 UTC)

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Celebrating more than 50 years manufacturing & servicing High Quality Vector Instruments Anemometers and Windvanes at Windspeed Ltd
A100L2/E and A100L2/H analog/voltage output anemometers
A100AC anemometer


The A100L2/E and A100L2/H are versions of the established A100L2 anemometer where the analog/voltage output signal is larger, and more stable vs temperature, and are suitable for interfacing to a variety of industrial/measuring equipment where a 0..5v signal is required.


> A100L2/E: 0..5v = 0..50 Knots analog output voltage signal (overranges to approx 8.5v at 85 Knots).

> A100L2/H: 0..5v = 0..50 m/s analog output voltage signal (overranges to approx 7.5v at 75m/s).

> Low Power Consumption.

> 10 to 28V DC powered.

> Good temperature-stability of analog voltage output signal (improved compared to the A100L2 model).

> Same rotor/cups and dynamic performance as A100L2 ("First Class").

> Stable reference/energisation voltage to power a W200P windvane (to obtain a 0..5V wind direction signal too).

> Available with most A100 Series Anemometer Options, including HE4 anti-icing heaters, PC3 anti-surge, SE option etc.

> Compatible with all A100 Series anemometer mountings.

> Alternatives to the older/discontinued/obsolete "A100 Porton" and "A100H Porton" anemometer models.

The A100L2/E and A100L2/E anemometer models are ideal for applications requiring a voltage/analog signal proportional to windspeed, but where the signal from the existing A100L2 model is too small.

Note: The A100L2/E and A100L2/H do not provide a pulse/frequency output signal.

Construction is from anodised aluminium alloys, stainless steels and weather resisting plastics for exposed parts. Precision corrosion resistant ball-races and a stainless steel shaft enable the R30 rotor response to produce a highly sensitive yet robust instrument suitable for continuous exposure to the weather.

Options for this anemometer include:
Note: /WR, /HE-1 and /HE-2 are not recommended for high precision applications.

The recommended mounting adaptors for use with this instrument are our type 405 and 405-1 series.

Vector Instruments A100L2 Anemometers are among the very few available having Class 1 performance ("First Class") according to the requirements of IEC and MEASNET standards.

Specification Highlights:

  • Threshold:
  • 0.15m/s (0.3Kt)
  • Starting Speed:
  • 0.2m/s (0.4Kt)
  • Stopping Speed:
  • 0.1m/s (0.2Kt)
  • Maximum Windspeed:
  • over 75m/s (146Kts)
  • Temperature Range:
  • -30 to +70 °C
  • Overall Accuracy (Analog O/P):
  • A100L2/E: +/-0.2Kt upto 20Kts, 1% of reading upto 50Kts. A100L2/H: +/-0.3m/s upto 30m/s, +/-1% of reading upto 50m/s.
  • Distance Constant:
  • 2.3m +/-10% (R30 rotor)
  • Overall Non-Linearity (Analog O/P):
  • A100L2/E: 0.2Kt upto 20Kts, A100L2/H: 0.3m/s upto 50m/s
  • Temperature stability (Analog O/P):
  • typ. +/-0.3% of output vs +15C value between -15..+35°C range. Max. +/-2% of output relative to +15C value between -30..+60°C range.
  • Supply Voltage:
  • 10..28V DC (current draw: typ. below 3.5mA, upto 5mA extra if also energising a connected/adjacent W200P windvane)
  • Analog Output Signal:
  • A100L2/E: 0..5V = 0..50Kts (25.7m/s, 57.6MPH) over-ranging to approx 8.8v at approx 98Kts. A100L2/H: 0..5V = 0..50m/s (97.1Kts, 111.9MPH) over-ranging to approx 8.8v at approx 90m/s.
  • Pulse Output Signal:
  • NONE (A100L2/E and A100L2/H do NOT provide a pulse-output signal)
  • Rotor:
  • A100L2/E: 3-cup R30K/K2 (standard), A100L2/H: 3-cup R30K/M3 (standard)
  • Dimensions:
  • This instrument is constructed using our standard rotor and anemometer body design and dimensions.
  • Wiring/Connections (Cable colours):
  • For wiring details click HERE
  • Cable:
  • 3m (9ft10in) permanently attached 6-conductor* cable with braided shield/screen as standard. Longer lengths are available to order (up to 115m). Spec: Def Stan 61-12 part 4, 0.22mm²(∼24AWG). *Note: 8-conductor used for /HE4 models.
  • MEASNET/IEC Calibration Certificate (optional extra):
  • The A100L2/E and A100L2/H Anemometers are available with an IEC/MEASNET Calibration Certificate on the pulse/frequency output channel (for an additional charge)
  • Regulatory/Certifications: :
  • UKCA CE marks CE and UKCA Marked for RoHS3 (RoHS2+Phthlatales amendments) and EMC

  • Obtaining best accuracy
  • Reliability & Safety
  • Specifications are correct at time of writing and may change without notice. Please contact us to confirm the latest specifications.

    Additional Information:

    This instrument is commonly used in conjunction with our W200P Windvane.
    FAQ: IP Ratings

    Windspeed Ltd (Vector Instruments)
    Windspeed Limited (trading as Vector Instruments),
    113 Marsh Road, RHYL, North Wales, LL18 2AB, United Kingdom
    Tel: +44 (0) 1745 350700
    Website design and content is copyright (c) 2003-2024 Windspeed Limited (unless otherise stated). All trademarks are acknowledged.