General Tools DAF4223 User Manual
VANE ANEMOMETER
HUMIDITY/TEMP.
Model : 'A)4223
TABLE OF CONTENTS
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3-4 Hold ( ) Button, Unit Button.........................
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1. FEATURES.................................................................1
2. SPECIFICATIONS......................................................
2-1 General Specifications.......................................... 2
2-2 Electrical Specifications........................................ 3
3. FRONT PANEL DESCRIPTION..................................... 5
3-1 Vane...................................................................5
3-2 Humidity/Temp. Sensor.......................................
3-3 Power ( ) Button.............................................▲ 5
3-5 REC ( ) Button, Mode Button............................▼ 5
3-6 LCD Display........................................................
3-7 Battery Compartment/Cover.................................5
4. MEASURING PROCEDURE.......................................... 6
4-1 Mode ( Function ) selection.................................. 6
4-2 Unit selection...................................................... 7
4-3 Anemometer measurement.................................. 8
4-4 Humidity measurement........................................ 9
4-5 Dew point measurement...................................... 9
4-6 Data Hold...........................................................
4-7 Data Record ( Max., Min. reading )....................... 10
4-8 Auto power off management................................11
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5. BATTERY REPLACEMENT...........................................
6. OPTIONAL CARRYING CASE.......................................11
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1. FEATURES
* Anemometer, Humidity, Temperature meter, 4 in one,
professional.
* Anemometer unit : m/S, Km/h, FPM, mph, Knot.
* Humidity with Dew point measurement
* Temperature measurement with , unit.℃℉
* Vane anemometer, available for wind speed
measurement, high reliability.
* Fast response time for humidity measurement.
* Two display can select the three mode ( function ) :
Humidity/Temp., Humidity/Dew point,
Anemometer/Temp..
* Bright LCD display.
* Microprocessor circuit ensures high accuracy and
provides special functions and features.
* Records Maximum and Minimum readings with recall.
* Auto power off saves battery life.
* Operates from DC 1.5V ( UM4/AAA ) x 4 PCs batteries.
* Low-friction ball vane wheels is accurate in both high
and low velocities.
* Durable, long-lasting components, enclosed in strong,
compact ABS-plastic housing.
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2. SPECIFICATIONS
2-1 General Specifications
Display LCD size : 1.1" X 0.8" (28 mm x 19 mm).
Anemometer m/S (meters per second)
Unit Km/h ( kilometers per hour )
FPM ( feet per minute )
mph ( miles per hour )
Knot ( nautical miles per hour )
Temp. unit , ℃℉
Humidity unit %RH
Dew point , ℃℉
Circuit Custom one-chip of microprocessor LSI
circuit.
Sensor Anemometer Van probe with low friction
Structure ball bearing design.
Humidity Capacitance humidity
sensor, semiconductor
Temperature Semiconductor
Data Hold Freeze the display reading.
Memory Recall Maximum & Minimum value.
Sampling Time Approx. 1 second.
Power off Auto shut off saves battery life or
manual off ( REC function ).
Operating 32 to 122 F 0 to 50 .℃
Temperature
Operating Less than 80% R.H.
Humidity
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