PCE Instruments PCE-423 User manual

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The Specification of Hot Wire Anemometer
Manual PCE-423

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
Table of contents
1. Instructions ................................................................................................... 3
Features.............................................................................................................. 3
2. Specifications ............................................................................................... 4
3. Button ........................................................................................................... 5
4. Display Elements.......................................................................................... 6
4.1 Changing Setup Options............................................................................ 7
4.2 Setup Options.......................................................................................... 7
4.3 Entering or Exiting Setup......................................................................... 7
4.4 Changing a Setup Option .......................................................................... 7
4.5 Area unit Setting ........................................................................................ 8
4.6 Area Setting............................................................................................... 8
4.7 Auto Power Off Mode ................................................................................ 9
5. Measuring Procedure ................................................................................... 9
6. Performing a multi-point mean calculation ................................................. 11
7. Performing a mean calculation in time.......................................................... 12
8. Holding the Displayed Readings................................................................... 12
9. Viewing the MIN, MAX Readings.................................................................. 12
10. Replacing the Batteries............................................................................... 13

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1. Instructions
Your purchase of this HOT WIRE ANEMOMETER makes a step forward for you into
the field of precision measurement.
Although this ANEMOMETER is a complex and delicate instrument, its durable
structure will allow many years of use if proper operating techniques are developed.
Please read the following instructions carefully and always keep this manual within
easy reach..
Features
1. Thermal anemometer, available for very low air velocity measurement.
2. Slim probe, ideal for grilles & diffusers.
3. Combination of hot wire and standard thermistor, deliver rapid and precise
measurements even at low air velocity.
4. Records Maximum and Minimum readings with recall.
5. Microprocessor circuit assures maximum possible accuracy, provides special
functions and features.
6. Super large LCD with dual function meter’s display, read the air velocity &
temp. at the same time.
7. Records Maximum and Minimum readings with recall.
8. Data Hold.
9. Power supply by 9V battery.
10. The portable anemometer provides fast, accurate readings, with digital
readability and the convenience of a remote probe separately.
11. Multi-functions for air flow measurement: m/s, km/h, ft/min, MPH, Knots.
12. Build in temperature Cº, Fº measurement.
13. Thermistor sensor for Temp. measurement, fast response time.
14. Used the durable, long-lasting components, including a strong, light weight
ABS-plastic housing case.
15. Deluxe hard carry case.
16. 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
General Specifications
Display 46.7mm × 60 mm larger LCD display.
Dual function meter’s display.
measurement
m/s ( meters per second )
km/h (kilometers per hour )
ft/min (feet per minute)
MPH (miles per hour)
knots ( nautical miles per hour )
Temp. ---, 
Data hold.
Memory Maximum and Minimum with recall
Sampling Approx.0.8 sec
Operating
Temperature
0 to 50 (32to 122)
Operating Humidity Less than 80% RH
Power Supply 9V battery
Power Current Approx. DC 60~90mA
weight 280g
Dimension 210mm×75mm×50mm
Accessories included Hot wire sensor 9V battery
Electrical Specifications
Air Velocity
Measurement Range Resolution Accuracy
m/s 0.1~25.0m/s 0.01m/s
±
(5%+1d)reading
km/h 0.3~90.0km/h 0.1km/h
ft/min 20~4925/min 1ft/min
MPH 0.2~ 55.8 MPH 0.1MPH
knots 0.2~48.5knots 0.1knots
Notes:
m/s －meters per second km/h －kilometers per hour
ft/min －feet per minute MPH －miles per hour
knots－nautical miles per hour
Temperature
Measuring Range 0 to 50 (32to 122)
Resolution 0.1/0.1
Accuracy
±
1/1.8

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3. Button
1, Press .The thermal sensor is heated up (5s). Measurement view is opened:
The current reading is displayed, or “――――”lights up if no reading is available.
Press again, turn off the instrument.
2, Press to freeze or unfreeze the displayed readings or air velocity Zero Adjust.
3, Press to enter a Setup option. Press again to store the displayed
setting in memory.
4, Press to turn on the backlight. Press it again to turn off the backlight. Press
button for 3 seconds to start or exit Setup. (See "Changing Setup Options.")
5, Press to scroll to the Setup option you want to change. Press to
increase the displayed setting.
6, Press to start recording and press again to stop recording .if enter a Setup
option .scroll to the Setup option you want to change. Press to decrease the
displayed setting.
7, performing a multi-point mean calculation or performing a mean calculation in time.
8, Press
Max
Min to step through the maximum and minimum readings. To exit the
MAN/MIX mode, press the
Max
Min button for 2 seconds to return to normal operation.
9, To change between displaying the temperature, flow velocity, and calculated
volumetric flow rate: Press
Flow
Temp .

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4. Display Elements
1. Low Power.
2. Primary Display: air velocity, recording data or time.
3. Air velocity units.
4. Secondly display data.
5. Secondly display: air flow, temperature, or air velocity data.
6. Record MAX, MIN display.
7. Sign of multi-point mean calculation.
8. Mean calculation
9. Sign of mean calculation in time.
10. The multiple of Secondly display data.
11. Flow units.
12. Temperature units.
13. Flow area units.
14. The multiple of Primary display data.
15. The Sign of Auto Power Off.
16. The sign of time.
17. Freezing the data.
18. Entering or Exiting Setup.
1
2
3
4
5
6
7 8 9
10
11
12
13
14
15
18 17 16

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4.1 Changing Setup Options
Use Setup to change area unit, flow area, sleep mode settings. The thermometer
stores the settings in its memory.
4.2 Setup Options
4.3 Entering or Exiting Setup
When the thermometer is in Setup mode, the display shows SETUP.
Press button for 3 seconds start or exit Setup.
4.4 Changing a Setup Option
1. Press or to scroll to the setup option you want to change.
2. Press to indicate that you want to change this setting.
3. Press or until the setting you want to use appears on the display.
2. Press to store the new setting in memory.
Notes: Setup is disabled in MIN MAX, Mean mode.
Option Menu
item Settings
Chose area
unit Unit set area unit
Change the
flow area area set area of measuring air flow
Auto Power Off
mode
SLP auto off or on

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4.5 Area unit Setting
1. When the thermometer is in Setup mode, press or to
scroll to the area unit setup option (refer Fig.2).
2. Press button., The string “AREA” and area unit shows
in the screen.
3. Press or to scroll to unit that you want to change((refer
Fig.3).
).
4. Press to store the new area in memory.
4.6 Area Setting
Changing the number digits of area and Change the number
value of area. Press or to scroll to the area value
setup option when the thermometer is in the setup mode.
Press button, the area number flashes. Press or
to scroll to digit that you want to change (refer Fig.3).
Press t, the screen indicate that area number with a
flashing digit. Press or to change the flashing digit
from 0 to 9. Press to change the station of flashing digit and press or to
change the number, the adjust order is from right to left. Press to store the
new area in memory.
Fig 1
Fig.2
Fig.3

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4.7 Auto Power Off Mode
The thermometer enters sleep mode (default). That is to say,
the meter will automatically shut off after 20 minutes if no button
press occurs for 20 minutes. When the thermometer is in Setup
mode, the display shows SETUP. Press or to scroll to
the “ SLP ” page . Press to indicate “On” or “OFF”. Press
or until the setting you want to use appears on the
display. Press to store the new setting in memory. On (sleep mode on)or 0FF
(sleep mode off).
5. Measuring Procedure
1. Connect the “Probe’s Plug” to the “Probe Input Socket”.
2. Power on the meter by push the “Power On/Off Button”.
3. Select the desire air velocity units and temperature units.
4. Zero setting:
a. On the “Sensing Head”, slide the sensor cover to the up position to let the air
velocity sensor isolated from the environment.
b. Push the “Zero Button” to let reading value of air velocity shows zero value.
Probe Handle
“Sensor cover” slide to the up position

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Air velocity sensor
Fig 2
Fig.3
5. Slide the sensor cover to the down position, let the air velocity sensor to contact
the air, refer Fig.2. Extent the telescope probe to the convenient length, refer
Fig.4.
6. Direction of the sensor head:
There is mark on the top of the “Sensor Head”, When make the measurement,
then this mark should against the measured wind, refer Fig. 4, Fig5.When sensor
head face against the measurement air, then sensor head face against the
measurement air, then the upper display will show the air velocity value. The lower
display will show the temperature value.

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6. Performing a multi-point mean calculation
1. Press .
is lit. The number of readings recorded is displayed in the upper line, while the current
reading is displayed in the lower line.
2. To change between displaying the temperature, flow velocity and calculated volumetric flow rate:
Press Flow
Temp .
3. If we want to change the units of the current reading, press .
4. To include readings (in the desired quantity): Press (several times).
5. To end measurement and calculate the mean value:Press .
flashes. The calculated spot mean value is displayed.
4 To return to measurement view: Press .
Flow
Air velocity sensor
Fig.4 Fig.5
Sensor head (top view)
Probe Handle
Direction mark should
face the measured wind.

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7. Performing a mean calculation in time
1. Press for 2 seconds.
is lit. The elapsed measuring time (mm:ss) is displayed in the upper line,
while the current reading is displayed in the lower line.
2. To change between displaying the temperature, flow velocity and calculated
volumetric flow rate: Press
Flow
Temp .
3. If we want to change the units of the current reading, press .
4. To interrupt/continue measurement: Press each time.
5. To end measurement and calculate the mean value: Press .
Mean flashes. The calculated mean value in time is displayed.
7. To return to measurement view: Press .
8. Holding the Displayed Readings
1. Press to freeze the readings on the display .The display shows HOLD.
2. To change between displaying the temperature, flow velocity and calculated
volumetric flow rate: Press
Flow
Temp .
3. Press again to turn off the HOLD function.
9. Viewing the MIN, MAX Readings
1. Press
Max
Min to step through the maximum (MAX), minimum (MIN), or the average
(AVG) readings. The elapsed time since entering MAX/ MIN mode, or the time at
which the minimum or maximum occurred appears on the display.
2. Press
Max
Min button for 2 seconds to exit MAX/MIN mode.

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10. Replacing the Batteries
1. Turn off the thermometer if necessary.
2. Loosen the screw and remove the battery door.
3. Replace 9V batteries.
4. Replace the battery door and tighten the screw.
In this direction will find a vision of the measurement technique:
http://www.industrial-needs.com/measuring-instruments.htm
NOTE: "This instrument doesn’t have ATEX protection, so it should not be used in potentially
explosive atmospheres (powder, flammable gases)."