General Tools HWA2005DL User Manual

Air velocity, Air flow, Type K/J thermometer
Real time data logger, 16000 Data logger no., RS232

HOT WIRE
ANEMOMETER

Model : HWA2005DL

TABLE OF CONTENTS

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1. FEATURES..................................................................1

2. SPECIFICATIONS........................................................2

3. FRONT PANEL DESCRIPTION......................................

4. GENERAL MEASURING PROCEDURE............................

4-1 Air velocity/Air temperature measurement.............. 8

4-2 Air flow ( CMM, CFM ) measurement......................

4-3 Thermocouple ( Type K/J ) Thermometer

measurement....................................................... 12

4-4 Data Hold............................................................. 13

4-5 Data Record (Max., Min. reading)...........................13

4-6 Data Logger..........................................................14

5. ADVANCED ADJUSTMENT PROCEDURE........................ 16

5-1 Check Memory Space............................................

5-2 Clear Memory.......................................................

5-3 Date/Time Setting................................................. 17

5-4 Sample Time Setting.............................................

5-5 Auto Power Off Default Setting..............................

5-6 Temp. Unit Default Setting....................................

5-7 Air Velocity Unit Default Setting.............................

5-8 Air Flow Unit Default Setting.................................. 19

5-9 Area Size ( Air Flow ) Default Setting......................19

5-10 Escape from the SETTING function.......................20

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6. HOW TO SEND THE DATA OUT FROM THE METER....... 20

7. RS232 PC SERIAL INTERFACE.....................................

8. BATTERY REPLACEMENT............................................

9. SYSTEM RESET......................................................... 25

10. OPTIONAL ACCESSORIES..........................................26

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1. FEATURES

* Combination of hot wire and standard thermistor,

deliver rapid and precise measurements even at low
air velocity value.

* Slim probe, ideal for grilles & diffusers.
* Air velocity : m/S, Ft/min, Km/h, Knot, Mile/h,
* Air flow : CMM ( m^3/min. ) and CFM ( ft^3/min. ).
* Air temperature ( , )℃℉
* Type K/ Type J thermocouple thermometer.
* Real time data logger, build in clock ( hour-min.-sec.,

year-month-date ).

* Auto or manual data record, 16,000 Data logger no.
* Wide sampling time adjustment range from two

seconds to 8 hours 59 minutes 59 seconds.

* Zero adjustment.
* Can default auto power off or manual power off.
* Can default the air velocity, air flow, Temp. unit.
* Air flow measurement can set the area dimension.
* Large LCD with multiple display.
* Data hold, record max. and min. reading.
* Microcomputer circuit provides special function & offer

high accuracy.

* Air Temp. used thermistor sensor, fast response time.
* Power by UM3 ( 1.5 V ) x 4 batteries or DC 9V adapter.
* RS232 computer interface.
* Separate probe, easy for remote measurement.
* Applications : Environmental testing, Air conveyors,

Flow hoods, Clean rooms, Air velocity, Air balancing,
Fans/motors/blowers, Furnace velocity, Refrigerated
case, Paint spray booths.

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2. SPECIFICATIONS

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2-1 General Specifications

Circuit Custom one-chip of microprocessor LSI

circuit.
Display LCD size : 58 mm x 34 mm.
Measurement
Unit m/S (meters per second)

Sampling Time Manual Push the data logger button
of Data Logger once will save data one time.

Sensor
Structure Tiny glass bead thermistor.

Air velocity:

Km/h ( kilometers per hour )
Ft/min ( feet per minute )
Knot ( nautical miles per hour )
Mile/h ( miles per hour )

Air flow:

CMM ( m^3/min., cube meter per min. )
CFM ( m^3/min., cube feet per min. )

Air temperature:

, ℃℉

Type K/ Type J thermometer.

, ℃℉

Set the sampling time to
0 second

Auto 2 sec to 8 hour 59 min. 59 sec.

Air velocity & Air flow :

Air temperature :

Thermistor.

Type K/ Type J thermometer.

Thermocouple

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Temperature Automatic temp. compensation for the
Compensation Type K/J thermometer.
Data Hold Freeze the display reading.
Memory Recall Maximum & Minimum value.
Sampling Time Approx. 1 second.
of display
Power off Auto shut off saves battery life or

manual off by push button.
Data Output RS 232 PC serial interface.
Operating 0 to 50 .℃
Temperature
Operating Less than 80% R.H.
Humidity
Power Supply DC 1,5 V battery ( UM3 ) x 4 PCs,

* main instrument

( Heavy duty type ).

DC 9V adapter input.

@ AC/DC power adapter is optional.

Power Supply DC 3V silver battery.

* clock module

Type : CR2032.
Power Current Approx. DC 21.5 mA

@ Main instrument.

Approx. DC 70 mA

@ Main instrument. + Hot wire probe.

Weight 515 g/ 1.13 LB.
Dimension

Main instrument :

@ Battery is included.

203 x 76 x 38 mm

Telescope Probe :

Round, 12 mm Dia x 280 mm ( min. length ).
Round, 12 mm Dia x 940 mm ( max. length ).

Accessories Instruction manual....................... 1 PC

Included Telescope Probe...........................1 PC

DC 3V silver battery, CR2032........ 1 PC

Carrying case............................... 1 PC

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Optional Type K thermocouple probe.
Accessories AC to DC 9V adapter.

RS232 cable, UPCB-02.

Data Acquisition software,SW-U801-WIN.

Data Logger software, SW-DL2005.

2-2 Electrical Specifications (23± 5 )℃

Air velocity

Measurement Range Resolution Accuracy

m/S 0.2 to 20.0 m/s 0.1 m/S ±( 5% + a )
Km/h 0.7-72.0 km/h 0.1 Km/h reading
Mile/h 0.5-44.7 mph 0.1 Mile/h or
Knot 0.4-38.8 knot 0.1 Knot ±( 1% + a )
Ft/min 40-3940 ft/min 1 Ft/min full scale

@ a = 0.1 m/s, 0.1 km/h, 0.1 mile/h, 0.1 knot, 10 ft/min

Note:

m/s - meters per second km/h - kilometers per hour
ft/min - feet/per minute knot - nautical miles per hour
mile/h - miles per hour (international knot)

Air flow

Measurement Range Resolution Area

CMM (m^3/min.) 0 to 36,000 m^3/min. 0.001-1 0.001-30.0 m^3/min.

CFM (ft^3/min.). 0 to 1,271,200 ft^3/min. 0.01-100 0.01-322.91 ft^3/min.

Air temperature

Measuring Range 0 to 50 /32 to 122 ℃℃℉ ℉
Resolution 0.1 /0.1 ℃℉
Accuracy ± 0.8 /1.5 ℃℉

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Type K/J thermometer

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Sensor Reso- Range Accuracy
Type lution
Type K 0.1 ℃ -50.0 to 1300.0 ℃ ± ( 0.2 % + 0.5 )℃

-50.1 to -100.0 ℃ ± ( 0.2 % + 1 )℃

0.1 ℉ -58.0 to 2372.0 ℉ ± ( 0.2 % + 1 )℉

-58.1 to -148.0 ℉ ± ( 0.2 % + 1.8 )℉

Type J 0.1 ℃ -100.0 to 1100.0 ℃ ± ( 0.2 % + 0.5 )℃

-50.1 to -100.0 ℃ ± ( 0.2 % + 1 )℃

0.1 ℉ -58.0 to 2012.0 ℉ ± ( 0.2 % + 1 )℉

-58.1 to -148.0 ℉ ± ( 0.2 % + 1.8 )℉

Above specification tests under the environment RF
Field Strength less than 3 V/M & frequency less than
30 MHz only.

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3. FRONT PANEL DESCRIPTION

Fig. 1

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3-1 Display

3-2 Power Button
3-3 HOLD Button ( ESC Button )
3-4 REC Button ( Enter Button )
3-5 Up Button ▲
3-6 Function Button ( Down Button )▼
3-7 Send Button ( Clock Button )
3-8 SET Button ( Logger Button )
3-9 Stand
3-10 Battery Compartment/Cover
3-11 Tripod Fix Nut
3-12 LCD Brightness Adjust VR
3-13 System Reset Switch
3-14 RS-232 Output Terminal
3-15 DC 9V Power Adapter Input Socket
3-16 Type K/J Probe Input Socket
3-17 Probe Input Socket
3-18 Probe Lock Switch ( System On/Off Switch )
3-19 Probe Plug
3-20 Sensing Head
3-21 Telescope Probe

Fig. 1

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