General Tools HWA4204HA User Manual

HOT WIRE
ANEMOMETER

Model : +:$204HA

TABLE OF CONTENTS

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

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

2-1 General Specifications......................................... 2

2-2 Electrical Specifications........................................3

3. FRONT PANEL DESCRIPTION.................................... 4

3-1 Display.............................................................

3-2 Power Off/On Button.........................................4

3-3 Data Hold Button.............................................. 4

3-4 蚓/

3-5 Memory "Record" Button................................... 4

3-6 Memory "CALL" Button......................................4

3-7 Zero Button...................................................... 4

3-8 Unit Button.......................................................4

3-9 Battery Compartment/Cover.............................. 4

3-10 Probe Input Socket............................................4

3-11 Sensing Head....................................................4

3-12 Probe

3-13 Probe Plug........................................................

蚌 F / C Button...............................................4

Handle................................................... 4

4

4

4. MEASURING PROCEDURE..........................................5

5. BATTERY REPLACEMENT...........................................9

1. FEATURES

* Thermal anemometer, available for very low air velocity

measurement.

* Slim probe, ideal for grilles & diffusers.
* Combination of hot wire and standard thermistor, deliver

rapid and precise measurements even at low air velocity
value.

* Microprocessor circuit assures maximum possible

accuracy, provides special functions and features.

* Super large LCD with dual function meter's display, read

the air velocity & temp. at the same time.

* Heavy duty & compact housing case.
* Records Maximum and Minimum readings with recall.
* Data hold.
* Power supply by 1.5 V AAA (UM-4) battery x 6 PCs.
* The portable anemometer provides fast, accurate

readings, with digital readability and the convenience of
a remote probe separately.

* Multi-functions for air flow measurement : m/s, km/h,

ft/min, knots. mile/h.

* Buil

t in temperature 蚓,

* Thermistor sensor for Temp. measurement, fast response

time.
Used the durable, long-lasting components, including a

*

strong, light weight ABS-plastic housing case.

* Deluxe hard carrying case.
* Applications : Environmental testing, Air conveyors,

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

蚌 F/C measurement.

1

2. SPEC

IFICATION

S

2-1 General Specifications

Circuit Custom one-chip of micro-

processor LSI circuit.

Display * 0.5" (13 mm) Super large LCD

display.
* Dual function meter's

Measurement m/s (meters per second)

km/h (kilometers per hour)
ft/min (feet/per minute)
knots (nautical miles per hour)
mile/h(miles per hour)
Temp.

F/C 蚓, 蚌.

Data hold.
Sensor
Structure Tiny glass bead thermistor.

Air velocity :

Temperature :

Precision thermistor.
Memory Maximum and Minimum with recall.
Sampling Time Approx. 0.8 sec.
Operating 32 to 122F (0 to 50 C 蚓 蚓蚌 蚌).
Temperature
Operating Less than 80% RH.
Humidity
Power Supply 1.5 V AAA (UM-4) battery x 6 PCs.

(Alkaline or heavy duty type).

display.

2