NRG Systems’ 200M Wind Direction Vane brings

significant upgrades to the proven design of our

200P Wind Direction Vane. Made from the same

high-quality, UV-stabilized materials as the 200P,

the 200M boasts 360° continuous measurement

capability, lowering measurement uncertainty.

Improvements to the 200M’s sensing element

also lower measurement uncertainty by improving

sensor accuracy. Users who switch to the 200M

Wind Direction Vane can enjoy high-end performance

at an economical price.

Key Beneﬁts:

• Same vane and body design as 200P ensures

seamless transition to 200M

• Field-tested materials for long-lasting durability

• New magnetic encoder-based signal generator

means accurate data are available in all wind

directions

• Improved mounting precision lowers measurement

uncertainty

• Factory calibration certiﬁcates with sensor-speciﬁc

scale and offset values reduce uncertainty caused

by sensor-to-sensor variability

NRG 200M

WIND DIRECTION VANE

Yellow Serial

Number Label

SPECIFICATIONS:

200M DESIGN VS. 200P DESIGN:

The NRG 200M Wind Direction Vane was designed to be a drop-in

replacement for the NRG 200P Wind Direction Vane. Accordingly,

most 200P characteristics have been maintained in the 200M. This

chart summarizes the key differences between the two sensors.

Please visit our website for the full set of sensor speciﬁcations.

Mag Encoder PCB

Sealed Bearing

New Set Screw

Potentiometer

200M

Shielded

Bearing

Speciﬁcation NRG 200M Wind Direction Vane NRG 200P Wind Direction Vane

Sensor Type

Magnetic coupling-based wind direction vane

with active electronics

Potentiometer-based wind direction vane

Sensor Uncertainty

Expanded Uncertainty (k=2) 95% Confidence:

• ±2.5° (359.1° to 0.9°)

• ±1.6° (>0.9° to <359.1°)

Expanded Uncertainty (k=2) 95% Confidence:

• Dead Band (356° to 4°)

• ±4.3° (>4° to <356°)

Dead Band 0° Dead Band 8° Maximum, 4° Typical

Output Signal Range 10 mV to 2.5 V OV to Excitation Voltage (excluding the dead band)

Supply Voltage 5 to 15 VDC 1 to 15 VDC

Supply Current

1.5 mA with constant excitation

(e.g., on SymphoniePLUS3 logger)

<500 uAmps with pulsed excitation

(e.g., on SymphoniePRO logger)

250 uA to 1.5 mA (when supplied by 1 V to 15 VDC)

200P

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