Air Velocity Meter PCE-EM 890

Air Velocity Meter PCE-EM 890
Instrument Laboratorium

Deskripsi produk
DESCRIPTION
Air velocity meter PCE-EM 890
Climate weather measuring device for recording various environmental data / Various measuring functions / MAX / MIN measurement / High accuracy

The air velocity meter PCE-EM 890 is an instrument for measuring environmental conditions. The air velocity meter gives you an accurate measurement very quickly. Due to the small dimensions and the low weight, this air velocity meter is an easy-to-use information system on the weather condition. It is possible to switch between the measuring functions with just one push of a button. Thus, this air velocity meter is ideal for technicians, sailors, farmers and many other people who are dependent on the weather or whose activities are significantly influenced by the weather.

With just one gauge, you can read wind speed, temperature, wind chill (sensed temperature), dew point, relative humidity, heat index, barometric pressure, and height above sea level. The anemometer offers you the functions of the individual measured value, minimum value, maximum value measurement.

Explanation of various environmental conditions:

Wind Chill
The wind chill describes the difference between the measured air temperature and the sensed temperature as a function of the wind speed. Some of our anemometers can record the wind chill and other parameters.

Air Pressure
The air pressure at any location in the Earth's atmosphere is the hydrostatic pressure of the air that prevails in that location. This pressure is consistent with the weight of the column of air that is on the surface of the earth or a body on it. The average atmospheric pressure of the atmosphere at sea level is 101325 Pa = 1013.25 hPa = 101.325 kPa and is thus part of the normal conditions.

Dew Point / Dew Point Temperature
Air can absorb more water vapor with increasing temperature. With decreasing temperature of a building material or the air, in which the relative humidity of 100% is reached, then the excess water vapor precipitates in the form of condensation. The boundary area is called dew point. Buildings should be designed so that the dew point temperature on the inside of the air tightness layer is not undershot. The formation of condensation and resulting structural damage or mold is thereby avoided. Particularly harmful are air currents through the air tightness layer. In this case, a fall below the dew point is always to be expected. The wet bulb temperature, which plays an important role in the air conditioning industry, for example, is a very important parameter in many other areas.
HIGHLIGHTS
- Compact and robust construction
- High precision
- Very precise, smooth-running impeller
- Easy to read digital display
- Backlight
- Interchangeable impeller
- Max-Min measurement
- 11 measurement functions in one device
SPECIFICATION
Measuring function
Measuring range
Resolution
Accuracy
Wind speed
80 ... 3937 ft/min
1 ft/min
± 3% of measured value

0.4 ... 20 m/s
0.1 m/s


1.4 ... 72 km/h
0.1 km/h


0.9 ... 44.7 mph
0.1 mph


0.8 ... 38.8 Knots
0.1 Knots





Air temperature
Measuring range
Resolution
Accuracy

0 ... 50°C / 32 ... 122°F
0.1°C / 0.18°F
± 1.2°C / 2.16°F




Humidity
Measuring range
Resolution
Accuracy

10 ... 95% r.H.
0.1% r.H.
<70% r.H.: ± 4% r.H.



>70% r.H.: ± 4 of measured value +1.2% r.H.




Barometric-
Measuring range
Resolution
Accuracy
air pressure
10 ... 999.9 hPa
0.1 hPa
± 1.5 hPa

1000 ... 1100 hPa
1 hPa
± 2 hPa




UV A 290 ... 390 nm
Measuring range
Resolution
Accuracy

0 .... 1999 µW/m²
0.1 µW/m²
±(4% of measured value + 2 digits)

2 ... 20 mW/m²
0.01 mW/m²





External temperature
Measuring range
Resolution
Accuracy
(Pt1000 input)
-10 ... 70 °C / 14 ...158°F
0.1°C / 0.18
± 1.2°C / 2.16°F








Volume flow
Measuring range
Resolution


0.024 ... 3600 cmm
0.001 cmm



0.01 cmm



0.1 cmm



1 cmm






Measuring range
Resolution

Dew point
-25.3 ... 49°C / 13.54 ... 120.2°F
0.1°C / 0.18°F





Wet bulb temperature
Measuring range
Resolution


-5.4 ... 49°C / 22.28 ... 120.2°F
0.1°C / 0.18°F





Heat stress index
Measuring range
Resolution
Accuracy

0 ... 100°C / 32 ... 212°F
0.1°C / 0.18°F
± 2°C / 3.6°F




Windchill
Measuring range
Resolution
Accuracy

-9.4 ... 44.2°C / 15.8 ... 111.56°F
0.1°C / 0.18°F
± 2°C / 3.6°F




Height above sea level
Measuring range
Resolution
Accuracy

-2000 ... 9000 m / -6561 ... 29527 ft
1 m / 3 ft 3"
± 15 m




General technical data for the air velocity meter
Display
LC display

8 mm character height
Measurement functions
Wind speed / temperature
Display parameters
Humidity / temperature

UV

Air pressure

Volume flow

Dew point

Wet bulb temperature

Windchill

Heat stress index

Height above sea level

External temperature over Pt1000


Power supply
CR2032 3V batteries
Current consumption
ca. 5-mA
Operating conditions
0 ... 50°C / 32 ... 122°F / max. 80% r.H.
Dimensions
120 x 45 x 20 mm / 4.7 x 1.7 x 0.7"
Weight
ca. 160 g / < 1 lb


DELIVERY SCOPE
1 x Air Velocity Meter PCE-EM 890
1 x CR2032 batteries
1 x User manual