Hot Wire Anemometer

Hot Wire Anemometer

User’s Manual

CONTENTS

1. Description...... 2

2. Features...... 2

3. Specification...... 3

4. LCD Display...... 4

5. Meter Description...... 5

6. Buttons functions...... 6

7. Operating instruction...... 8

8.Accessories...... 9

1. Description

The hot wire anemometer is a complex and delicate instrument,which make you a new step forward into the field of precision measurement. High precision and slim probe ensures higher proficiency of your measuring.

Features

2.1 Thermal anemometer for extremely low air velocity measurement

2.2 Slim probe is ideal for measuring between grilles and narrow space

2.3.Combination of thermal resistance and standard hot resistance ensures fast and accurate measuring for low air velocity

2.4. Record and recall Maximum and Minimum readings

2.5 Microprocessor ensures the best accuracy, providing special functions and features.

2.6 Super large LCD can display air velocity, air volume and air temperature at the same time

2.7 Various measuring units：m/s,km/h,ft/min,MPH,Knots for air velocity；CFM CMM for air volume

2.8、Build in thermistor temperature sensor, fast response selectable units of ℃ and ℉

3. Specification

Air velocity measurement
Unit / Range / Resolution / Accuracy
m/s / 0.1~35.0 m/s / 0.01m/s / (5%+1d) of reading or(1%+1d) full scale
km/h / 0.3~122.5 km/h / 0.1km/h
ft/min / 20~6889 ft/min / 1ft/min
MPH / 0.2~78.2 MPH / 0.1MPH
Knots / 0.2~68 knots / 0.1knots
Air temperature measurement
Unit / Range / Resolution / Accuracy
℃ / 0℃～50℃ / 0.1 / ±1.0℃
℉ / 32℉～122℉ / 0.1 / ±1.8℉
Air volume measurement
Unit / Range / Resolution
CFM / 0～99999 ft3/min / 0.001 to 100
CMM / 0～99999 m3/min / 0.001 to 100
General information
Display / 2.8 inch dual LCD display
Sampling time / Approx: 0.8 seconds
Auto power off / Approx: 15 minutes
Operating Temperature / 0℃～50℃/32℉～122℉
Operating Humidity / ＜80%
Power supply / LR6 9V
Weight / 300g
Size / 184×64×31.5mm

CFM(ft3/min)=air velocity(ft/min) x area(ft2)

CMM(m3/min)=air velocity(m/s) x area(m2) x 60

4. LCD Display

1. Low battery indication

2. Auto power off icon

3. Temperature units

4. Air velocity units

5. Air velocity readings

6. Air volume unit symbol

7. Hold icon

8. MAX/MIN icon

9. AVG icon

10. Air velocity level indication

11. Temperature reading area

5. Meter Description

1. Probe connector

2. LCD Display

3. SET button

4. Temperature unit conversion

5. Average/up

6. MAX/MIN

7. Velocity unit selections/Down

8. Power on

9. Hold button

10. Backlight button

11. Sensor handle

12. Air velocity sensor

6. Buttonsfunctions

6.1. key；press “” key，turn on or turn off the meter. key；In measuring mode，press this button to switch temperature unit.

6.2.key；after power the meter on，keep pressing this button, until “UNIT” icon appears on LCD.（Refer picture 1），the meter enters into area setting，then press“”key to select area unit“ft2”or“㎡”. After choosing the unit. press “”key once， “AREA” icon will appear on LCD.（Refer picture 2），then input area values, the number can be 0.001～9999，press“”to increase the values，press“” to decrease the values. press “” to choose decimal places. After input the values，Press“”again， “SPL” icon will appear on LCD.(Refer picture 3)，the meter enters into setting mode for auto power off and non auto power off.，now press“”key，it can choose ON（auto power off ）or OFF（non auto power off），after choosing, long press “”key，the meter saves the new setting and exit setting mode.

6.3.key；when the meter is on，pressing this button can turn on or turn off backlight。

6.4.key; In measuring mode，pressing this button enters into average measuring mode。

6.5.key；In measuring mode，pressing this button to display MAX/MIN in turn.

6.6.key；In measuring mode，Pressing this button to freeze the readings on LCD display。

6.7.key；In measuring mode，press this button once to select desired units(air velocity units or air volume units), keep pressing this button for zeroing operation before measurement.

7. Operating instruction

7.1.Plug the probe into the socket（Note： battery and power adapter cannot be used at the same time）

7.2. Power on the meter to warm up the sensor

7.3. Select the desire air velocity units and temperature units

7.4. Zero setting:

a) Slide upward the sensor cover to the sensor position to make the air velocity sensor isolated from the environment.

b)When the digits is stable, keep pressing “Hold/Zero”key for 2 seconds, zero setting is finished after LCD showing four “0”.

7.5. Slide downward the sensor cover, let the air velocity sensor to touch the air, extent the telescope probe to suitable length.

7.6.Direction of the sensor: there is an arrow on the top of the “sensor head”, in measuring mode, the arrow point must bein same direction as the air flow, if meter operated in this way, then the upper display will show the air velocity value. The lower display will show the air temperature value.

8. Accessories

1. User Manual

2.9V battery

3. DC 9V adapter

4. Hot wire sensor