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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.

1

Summary of Contents for DAF4223

Page 1: ...VANE ANEMOMETER HUMIDITY TEMP Model A 4223...

Page 2: ...Hold Button Unit Button 5 3 5 REC Button Mode Button 5 3 6 LCD Display 5 3 7 Battery Compartment Cover 5 4 MEASURING PROCEDURE 6 4 1 Mode Function selection 6 4 2 Unit selection 7 4 3 Anemometer measu...

Page 3: ...t 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 fea...

Page 4: ...cuit Custom one chip of microprocessor LSI circuit Sensor Anemometer Van probe with low friction Structure ball bearing design Humidity Capacitance humidity sensor semiconductor Temperature Semiconduc...

Page 5: ...ctrical Specifications 23 5 Anemometer Air velocity Measurement Range Resolution Accuracy m S 0 4 to 30 0 m s 0 1 m S 20 m s Km h 1 4 to 108 0 km h 0 1 Km h 3 F S FPM 80 to 5910 ft min 1 Ft min 20 m s...

Page 6: ...9 Resolution 0 01 Range 13 5 to 120 1 Resolution 0 01 Remark Dew Point display value is calculated from the Humidity Temp measurement automatically The Dew Point accuracy is sum accuracy value of Humi...

Page 7: ...3 FRONT PANEL DESCRIPTION Fig 1 3 1 Vane 3 2 Humidity Temp Sensor 3 3 Power Button 3 4 Hold Button Unit Button 3 5 REC Button Mode Button 3 6 LCD Display 3 7 Battery Compartment Cover 5...

Page 8: ...e meter 2 The meter can select three kind mode function as a Humidity Temp b Humidity Dew point c Anemometer Temp Pressing the Mode Button 3 5 Fig 1 continuously at least 2 seconds both upper and the...

Page 9: ...he meter by pressing the Power Button 3 3 Fig 1 momentarily Pressing the Power Button 3 3 Fig 1 momentarily again will turn off the meter 2 Pressing the Unit Button 3 4 Fig 1 continuously at least 2 s...

Page 10: ...e unit is selected it will be memorized into the memory circuit If power off and on again will present the existing selection unit 4 3 Anemometer measurement 1 Turn on the meter by pressing the Power...

Page 11: ...int measurement 1 Turn on the meter by pressing the Power Button 3 3 Fig 1 momentarily 2 For the above 4 1 mode function selection please set to b Humidity Dew point Upper display show humidity value...

Page 12: ...ith the maximum value will appear on the display b Press the REC Button 3 5 Fig 1 momentarily again the REC MIN symbol along with the minimum value will appear on the display When display shows REC MA...

Page 13: ...d function during measurement by pressing the REC Button 3 5 Fig 1 5 BATTERY REPLACEMENT Replace the batteries when the left corner of the LCD displays the low battery icon using 4 fresh 1 5 V UM4 AAA...

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