HoldPeak HP-846A User manual

1
AIR FLOW ANEMOMETER
INSTRUCTION MANUAL
Thank you for purchasing our company Air Flow
Anemometer.
This manual provides relative information on how to use the
Air Anemometer and warning in operation Please make
some simple test measurement to ensure proper
performance of the unit.
To make the best use of this Anemometer, read this
Manual thoroughly before use it. Please Keep this Manual
Handy for reference.
1. Before Use Notice
Check up
Carefully unpack your kit and ensure that you
have the following Items. In case that any items is
missing or if you find any mismatch or
damage .promptly contact your local dealer.
Air Flow Anemometer unit-------------- 1pcs
wind velocity sensors ----------------- 1pcs
6F22 or NEDA 1604 9V battery ----------1pcs
English/Chinese Instruction Manual ------1pcs
Warranty Card --------------------- 1pcs
PP Packing box -------------------- 1pcs
Features
Measurement of wind velocity, temperature and wind
flow
Unit conversion of wind velocity, temperature and
flow
Measurement of maximum and minimum wind
velocity
Measurement of 2/3V max and average wind flow
Data holding, storing and deleting function
Low battery indicating function
Auto power off function (Button without any operation
and the fan static after 5 minutes will be turned off)
Memory of 300 records
Backlight function
Pressing key audio alert
Large LCD display
Wind Handle Can Elongate
DIAGRAM OF THE UNIT
1). LCD display
2). Max/Min value switch
3). Power key: press once to power on, again for two seconds
to power off
4). Wind velocity/flow transform key
5). Data holding key
6). Temperature unit switch
7) Unit transform key
8) Measuring key for average value of wind flow.
9) Record the measurement data
10) Wind flow AVG 2/3 MAX and figure input
11) Read out recorded data key
12) Reset key in "READ" mode/clear recorded
13) Backlight on/off key, press down to start the backlight
function, again to cancel.
14) Duct area input and sampling time setting key
15) Connecting wire
16) wind velocity sensors
NOTE:
Aforesaid key function descriptions are simple
introduction.
Pleas read operation instructions parts for details.
LCD Display
1) ：When measuring wind velocity, this symbol will
appears
2) ：When measuring wind flow, this symbol

2
appears
3) ：Wind flow unit (cube foot/minute)
4) ：Wind flow unit (cube meter/minute)
5) ：If measured value is over 9999, the symbol “X10 “or
“X100”will appear.
6) ：Big fans : indicate wind velocity /flow status,
which was subject to Wind Velocity and revolving.
7) ：Wind velocity and flow display area.
8) ：When measuring average values (one of the
wind flow measuring Method) this symbol appears.
9) ：Showing minimum values.
10) ：MAX2/3 of maximum value measurement (one
of the wind flow measuring method)
11) ：This symbol will appear. While Read stored
record data.
12) ：Data holding
13) ：Data record by using the signal
14) ：This symbol and serial number of stored record
data will appear. While Read stored record data.
15) ：Low battery indicating symbol, please replace
battery if this symbol empty.
16) ：Wind velocity unit (mile/hour)
17) ：Wind velocity unit (sea mile/hour)
18) ：Wind velocity unit (foot /minute)
19) ：Wind velocity unit (kilometer/hour)
20) ：Wind velocity unit (mete r/second)
21) ：Beaufort scale
22) ：M2is used to indicate duct area in square meter
when in flow function
："T2" Is used to indicate duct area in square feet
when in flow function
23) ：Wind temperature Celsius unit
：Wind temperature Fahrenheit unit
24) ：Temperature value display or Duct area display area
25) ：Wind temperature signal.
26) ：small fan signal: indicate the Wind Temperature
status
27) ：Bar graph display of Beaufort scale
SPECIFICATIONS
Wind Velocity Range:
Unit
Wind
Velocity
Resolution
Lowest
Point of
start value
Accuracy
m/s
0.0-45.0
0.001
0.3
±3%±0.1
Ft/min
0.0-8800
0.01/0.1/1
60
±3%±20
Knots
0.0-88.0
0.001/0.01
0.6
±3%±0.2
Km/h
0.0-140.0
0.001
1.0
±3%±0.4
Mph
0.0-100
0.001/0.01
0.7
±3%±0.2
2. Wind flow range:
CMM: 0-999900m3/min
CFM: 0-999900 ft3/min
Unit
Range
Resolution
Area
CMM(M3/MIN)
0-999900
0.001-100
0.001-9999
CFM(FT3/MIN)
0-999900
0.001-100
0.001-9999
2. Unit Conversation:
m/s
Ft/min
Knots
Km/h
Mph
m/s
1
196.87
1.944
3.60
2.24
Ft/min
0.00508
1
0.00987
0.01829
0.01138
Knots
0.5144
101.27
1
1.8519
1.1523
Km/h
0.2778
54.69
0.54
1
0.6222
Mph
0.4464
87.89
0.8679
1.6071
1
4. Air Temperature Range:
Unit
Scale
Resolution
Accuracy
℃
0.0-45.0
0.1
±1.0℃
℉
32.0-113.0
0.1
±1.8℉
5 . Operation Conditions:
Temperature
Humidity
Host
0-50℃(32-122℉)
≤80%RH
Fan
0-60℃(32-140℉)
6. Storage Conditions:
Temperature
-10-60℃(14-140℉)
Humidity
≤80%RH
7. Power supply : 6F22 9V×1
8. Low battery indicating : 6.8V±0.2V
9. Stand by current ≤2μA
10. Operating Current Approx.18mA
11. Battery use life :20H (Continuous Use )
12. Dimensions:
Meter:165×85×35 ㎜
Vane: 251×72×30 ㎜
13. Net Weight :320g (Not Included Battery )
2. Operation
Measurement of Wind Velocity and Temperature
Recover the battery door , and install the batteries properly
as shown in figure 1.
figure1:
Press the “ ” key, all the symbols will be shown on the screen
for 1 second, then the unit goes into current wind velocity and
temperature measuring mode, the LCD screen shows as
following figure2:
figure2:
Select your desired wind velocity and temperature unit
(1) Press the “UNIT”key, the wind velocity unit will be
auto change from (m/s、km/h、ft/min、knots、mph).
(2) Press the “℃/℉” , The temperature will be change
between ℃/℉mode.
Hold the Anemometer with your hand, place the vane in the
air flow with the air direction matching the direction of the
arrows printed on the inner walls of the vane (Pleas do not
extruded the fan leaf. Otherwise will cause the inaccuracy
measurement)
Figure3
(1) Wait for two Sec, to make the data stability
(2) Place the vane in the same direction of the wind to
capture the accurate data .
(3) Press “LIGHT”Key to start the Backlight Function,
then press "LIGHT" BUTTON the LED will cut off , the light
function will turn off.
Wind /Air Temperature Measurement
(1) Wind temperature will test out when testing Wind
Velocity, Small Vanes pattern will showing along with the
display of "TEMP" Symbol.

3
(2) Press button ℃/℉to Switch ℃/℉or (number 6
key).
Note:
aIf current is in wind flow measuring mode (on the left
top of the LCD will show "FLOW", you can turn it into
wind velocity measuring mode by pressing the
"VEL/FLOW' key, vice versa.
bThe defaulted model is last time you has setting
Measurement of Wind flow
Press the “VEL/FLOW”key to get into “FLOW”mode at this
time the LCD screen as shown in figure 4 :
Figure 4
(if the area value has been set before the last setting will be
shown)
Select your desired unit of wind flow and duct area:
aPress the “UNIT”key, the wind flow unit will convert
between CMM and CFM
bPress the “UNIT”key, the area unit will convert
between “M2”and “FT2”.
cArea unit: "M2" and "FT2" will convert according with
the conversion of the wind flow unit.
If wind flow unit is CMM, the area unit will be “M2”;
If wind flow unit is CFM. the area unit will be “FT2”.
Press the “AREA”key, the numbers in the middle of the
LCD will be disappeared at this time press numeric keys to
enter a new duct area, such as1.2, then press the “ENTER”
key to confirm. At this time the LCD screen as shown in
figure5:
Figure 5
Place the vane in the duct area, take measurement of
current wind flow value right away. As shown in figure 6 :
Figure 6
Wind Flow Calculate Formula: Flow =velocity *(Free Area)
Testing Wind velocity : The Bar graphic (showing on the
middle of LCD )was subject to the increasing wind Flow/
Velocity
Note: without enter the duct area will lead to failing in taking
measurement of the wind flow.
If wind flow is larger than 9999, the LCD screen will show
x10 or x100, and the measured value is also x10 or x100.
Measurement of 2/3 V max Wind Flow
Press the “VEL/FLOW”key to entre "FLOW" mode, the LCD
screen shows in figure7:
Figure 7
Select your desired unit by pressing the “UNIT”key, for
example: select CMM for wind flow unit, “M2”for area unit
at this time the LCD screen shows as above diagram.
Press the "AREA " key, Letter on the LCD will disappeared
at this time you can input duct area, such as 1.2, press
“ENTER”key confirm press again the “OPTION”key to
select “2/3 V max”, the LCD screen as shown in figure 8
Figure 8
Aim the vane of the attached unit at duct area properly, take
measurement of 2/3 V max wind flow right away, press
again the “OPTION”key exit to measurement of 2/3 V max
wind flow.
2/3 Max Wind flow calculate formula: FLOW =2/3×Max
wind Velocity×duct Area.
MEASUREMENT OF AVERAGE WIND FLOW
Press the “VEL/FLOW”key to get into “FLOW”mode, the
LCD screen shows as in figure 9:
Figure 9
Select your desired unit by pressing the “UNIT”key, for
example: select CMM for wind flow unit, “M2”for area unit,
at this time the LCD screen shows as above diagram
press the “OPTION”key to select “AVERAGE”, the LCD
shows as in figure10:
Figure10
Aim the vane at certain point of duct area properly, press the
“NEXT”key, In the LCD of the upper part of the serial number, in
the meantime you can take measurement of the first group wind
flow values. As shown in figure 11:
Figure 11
Then select another test point, press the “NEXT”key to take
measurement of the second group average wind flow values.
Repeat above steps to measure as many as 12 groups average
wind flow values. As shown in figure 12:
Figure 12
Once again press the "OPTION key exit to measurement of
average wind flow.
Average Wind flow calculate formula
Flow =l/N ∑(Velocity)×(free Area)
Note
The average value only displays by pressing NEXT key, If
there is wind in the duct area, then the LCD Screen will
shows the measured Average Wind flow.
Max and min measurement
In wind flow and velocity measuring process, press the
“MAX/MIN”key to obtain the maximum and minimum
values, press again to exit. For example:
(1) When measuring maximum value of wind velocity, a
“MAX”will be shown on the upper LCD screen, as shown in
figure 13
Figure 13
(2) When measuring minimum value of wind velocity, a
“MIN”will be shown on the upper LCD screen, as
shown in figure 14:

4
Figure 14
Note:
Operation of Max/Min wind flow measurement is the same as
wind velocity.
Date holding /Storage/Reading and clearing
Data holding:
on Measurement state, press the "HOLD" key to freeze the
Data , press the "HOLD' key again return to normal
operation.
Data storage:
(1) instantaneous (one-shot) data storage: on
Measurement state, set the sampling rate=0 by
pressing “SAMPLE” key and in put a "0" sampling
time and then press "ENTER". Now, each time "REC"
is pressed, the present reading will be stored.
(2) Automatic data storage: on Measurement state,
press the “SAMPLE” key and input sampling rate, (the
sampling rate from 1-99 seconds using the numeric
keys to enter your desire rate,) then press the
“ENTER” key to confirm. Press the “REC” key to
begin storing readings in every sampling rate. The
“REC” icon will appear on the LCD indicated the data
storage function is activated. Press again the “REC”
key to finish data storage.（Press “REC” Key stop
recording.）
(3) hold the "CLR "button two seconds, and the screen
shows "CLR", all the records will be cleared
Reading data stored sequentially:
(1) Press the “READ”key, you can read the stored data in
memory sequentially, the LCD will first shows serial
number then shows the data. Short Press “RESET”
key to return normal operation. In data read, read to
10 if you need testing, once again return to read the
state, the data will be then 10 to read ( This product
can store 300 set of data. When the storage area full,
the "full" appeared, Press the "RESET" button back to
measurement state ）As shown in figure 15:
(2) read the value random
In "READ" state, press the "SAMPLE" button to enter
the data read serial number .Then press "ENTER"
confirmed that can show, press the "RESET" button to
exit
stored store
Figure 15
Familiar trouble shooting
The following is a list of actions to be to ken if the unit is not
working properly:
(1) Screen is blank
Check the battery is inserted correctly. Open the
battery door on the bottom rear of the unit. The “+”
“-”symbols on the battery should match the
corresponding “+”“-”symbols on the inside of the
battery compartment.
(2) lf the unit can not read the wind flow value properly,
please check if the vane is block or not connected.
(3) If the unit can not read the wind temperature value
properly, please check if the heat resistor is fall off or
damaged by manual.
(4) If the unit can not read data properly, please check it
is operated under the rule temperature and humidity
situation.
(5) when Measure the wind velocity the temperature
display line don't show the number for temperature
overflow or probe fault; When measuring the wind flow ,
area set overflow will appear this situation too
(6) When measuring wind velocity, the wind Velocity
display line appear "OL", for value overflow, wind flow
measurement situations as well.
Maintenance & Warranty
1). Maintenance
Replacing the battery and product maintenance:
aRemove the battery from the unit if it is not required for
extended periods of time in order to avoid damage to the
battery compartment and the electrode resulting from a
leaking battery.
bAfter power on, if a symbol " " appears on the LCD,
indicates that you should replace the battery in order to
avoid inaccurate measuring reading. Otherwise the
battery is very possible leak that will seriously damage the
unit life. The battery compartment is on the down rear of
the unit, open the battery door, re place the old battery
for a new 9V one (notice the battery polarity), close the
battery door with a screw knife to lock up.
Cleaning the casing:
Never use alcohol or thinner to clean the unit casing that
will especially erode the LCD surface; just clean the unit
lightly as needed with little clean water. Never impact the
unit or used on humidity condition.
Do not store or use the unit in following locations where the
unit may be subject to:
a. Splashes of water or high levels of dust.
b. Air with high salt or sulphur content.
c. Air with other gases or chemical materials.
d. High temperature or humidity (above50 ℃, 90%) or
direct sunlight.
2). Warranty:
About relative warranties please read provided warranty
card.
We disclaims any liability due to: transportation damages;
incorrect use or operation; manipulation, alterations or
repair attempts; without warranty card, invoice.
Specific Declarations:
aAbove picture and content just for your reference.
Please be subject to the actual products if anything
different or updated. Please pardon for not informing
in advance.
bDispose of battery should in accordance with local
laws and regulations.