SUNWE LM-8000P User manual

4 in 1
Anemometer, Humidity
Light Meter, Thermometer
Your purchase of this 4 in 1 METER marks a step
forward for youinto the field of precision measurement.
Althou
g
h this METER is a complex and delicate
instrument, its durable structure will allow many years
of use if proper operatin
g
techniques are developed.
Please read the followin
g
instructions carefully and
always keep this manual within easy reach.

TABLE OF CONTENTS
1. FEATURES................................................................1
2. SPECIFICATIONS......................................................2
3. FRONT PANEL DESCRIPTION....................................
.
4
3-1 Power Button......................................................4
3-2 Hold Button........................................................
.
4
3-3 Max. / Min. Button...............................................4
3-4 Unit / Zero Button............................................... 4
3-5 / , Lux/Ft-cd button.......................................
.
℃℉ 4
3-6 Function Button..................................................
.
4
3-7 Air Flow Sensor...................................................4
3-8 Thermocouple Input Socket.................................
.
4
3-9 R.H. Sensor........................................................
.
4
3-10 Li
g
ht Sensor......................................................4
3-11 LCD display.......................................................4
3-12 Battery Compartment / Cover.............................4
3-13 Wristlet.............................................................4
4. MEASURING PROCEDURES........................................5
4-1 AIR VELOCITY MEASUREMENT............................
.
5
4-2 TEMPERATURE MEASUREMENT ( Thermocouple ) ......
.
5
4-3 RELATIVE HUMIDITY MEASUREMENT.................. 6
4-4 LIGHT MEASUREMENT........................................
.
6
4-5 CHANGE TEMP. UNIT , .................................℃℉ 7
5. OTHER FUNCTIONS..................................................7
6. BATTERY REPLACEMENT...........................................8
7. OPTIONAL THERMOCOUPLE PROBE AND
OTHER ACCESSORIES.............................................
.
9

1. FEATURES
* 4 in 1 professional measuring instrument: Anemometer,
Hygrometer, Thermometer, and Light meter.
* Tiny bone shape with lightweight and small size case design
are suitable for handling with one hand.
* Wristlet design provides extra protection to the instrument
especially for user one hand operation.
* Low-friction ball bearing mounted wheel design provides
high accuracy at high and low air velocity.
* Exclusive photo diode and color correction filter light sensor,
spectrum meets C.I.E. photopic.
* High precision humidity sensor with fast response time.
* Standard type K (NiCr-NiAl) thermocouple input jack
suitable for all kinds of type K probe.
* Built- in microprocessor circuit assures excellent
performance and accuracy.
* Concise and compact buttons arrangement, easy operation.
* Memorize the maximum and minimum value with recall.
* / detection by pressing button on the front panel.℃℉
* Lux/Feet-candle selection by pressing button on the front
panel.
* Air velocity measuring units selection by pressing button on
the front panel for five kinds of units.
* Multi channel display for relative humidity and temperature
measured values or air velocity and temperature measured
values at the same time.
* Zero button design makes light meter calibration.
* Hold function to freeze the current reading value.
1

2. SPECIFICATIONS
2-1 General Specifications
Display 8 mm LCD display
Measurement Anemometer, Humidity, Temperature. Light
Operating Max. 80% RH.
Humidity
Operating 0 to 50° C (32 to 122° F)
Temperature
Over Input Indication of "- - - - "
Display
Power Supply 006P DC 9V battery (Heavy duty type)
Power Approx. DC 6.2 mA
Consumption
Weight 160g (battery included)
Dimension HWD 156x60x33 mm (6.14x2.36x1.29 inch).
Standard Instruction Manual
Accessory
Optional Carrying case.
Accessories Temperature probe ( Please refer to page 9 ).
2-2 Electrical Specification ( 23 ±5 )℃
Measurement Range Resolution
Air velocity ft/min 80 to 5910 ft/min 1 ft/min
m/s 0.4 to 30.0 m/s 0.1 m/s
km/h 1.4 to 108.0 km/h 0.1 km/h
MPH 0.9 to 67.0 mile/h 0.1 MPH
knots 0.8 to 58.3 knots 0.1 knots
Temperature 32 to 122 ℉0.1 ℉
( Semiconductor) 0 to 50 ℃0.1 ℃
2

Measurement Range Resolution
Humidity % RH 10 to 95 %RH 0.1 %RH
Temperature 32 to 122 ℉0.1 ℉
( Semiconductor) 0 to 50 ℃0.1 ℃
Light Lux 0 to 2,200 Lux 1 Lux
1,800 to 20,000 L
u
10 Lux
* auto range Ft-cd 0 to 204.0 Fc 0.1 Ft-cd
170 to 1,860 Fc 1 Ft-cd
Temperature ( Type K ) -148 to 2372 ℉0.1 ℉
-100 to 1300 ℃0.1 ℃
Measuremen
t
Range Accuracy
Air velocity 80 to 5910 ft/min
0.4 to 30.0 m/s 20 m/s : ± 3% F.S.≦
1.4 to 108.0 km/h > 20 m/s : ± 4% F.S.
0.9 to 67.0 mile/h
0.8 to 58.3 knots
32 to 122 ℉±2.5℉
0 to 50 ℃±1.2℃
Humidity 10 to 95 %RH < 70% RH :
±4%RH
70% RH :≧
: ± ( 4%rdg + 1.2 %RH )
32 to 122 ℉±2.5℉
0 to 50 ℃±1.2℃
Light 0 to 20,000 Lux ± 5% rdg ± 8 dgt
0 to 1,860 Fc
Temperature -148 to 2372 ℉± (1% rdg + 2 )℉
( Type K ) -100 to 1300 ℃± (1% rdg + 1 )℃
Remark :
ft/min : feet per minute MPH : miles per hour
m/s : meters per second knots : nautical miles per hour
km/h : kilometers per hour Ft-cd : feet candle
3

3. FRONT PANEL DESCRIPTION
Fig. 1
3-1 Power Button 3-7 Air Flow Sensor
3-2 Hold Button 3-8 Thermocouple Input Socket
3-3 Max. / Min. Button 3-9 R.H. Sensor
3-4 Unit / Zero Button 3-10 Light Sensor
3-5 / Button℃℉ 3-11 LCD display
Lux/Ft-cd Button 3-12 Battery Compartment / Cover
3-6 Function Button 3-13 Wristlet
4

4. MEASURING PROCEDURE
4-1 Air Velocity Measurement
1) Power on the instrument by pressing the " Power Button "
( 3-1, Fig. 1 ).
2)Select the Anemometer function by pressing " Function
Button " ( 3-6, Fig. 1 ).
3)Press the " Unit/Zero Button " ( 3-4, Fig. 1 ) to select
unit that you want and then face the " Air Flow Sensor "
( 3-7, Fig. 1 ) to the source of wind.
4)Allow time for the reading to become stable and note the
value indicated. From a practical point of view the velocity
may fluctuate.
4-2 Temperature Measurement
( Thermocouple )
1)Power on the instrument by pressing the " Power Button "
( 3-1, Fig. 1 )..
2)Plug a type K thermocouple probe in the " Thermocouple
Input Socket " ( 3-8, Fig. 1 ).
3)Select the Temperature function by pressing " Function
Button " ( 3-6, Fig. 1 )
4)Contact the Thermocouple Sensor Head with measuring
object and the reading value will be displayed on the LCD
display.
Measuring Consideration of Temperature
Measurement ( Thermocouple )
* Please make sure the polarity is correct when you plug a
thermocouple probe in the Temp. input socket.
5

* The temperature difference between thermocouple
probe and thermometer will cause an inaccurate
measuring result. Therefore, for the best measuring
and accuracy performance, whenever change a probe or
plug a new probe, thermal equivalent between probe
plug and meter's input socket is a necessary condition.
Thermal equivalent procedure may take few minutes
and apply only when the probe has been exposed to an
ambient temperature different from the meter.
4-3 Humidity & Ambient Temperature
Measurement
1)Power on the instrument by pressing the " Power
Button " (3-1, Fig. 1).
2)Select the Relative Humidity function by pressing
"Function Button " ( 3-6, Fig. 1 ).
3)At the mean time the reading value of relative humidity
and temperature will be displayed on the LCD display.
4)When the meter is applied in a new environment, a few
minutes are required to reach a stable condition.
4-4 Light Measurement
1)Power on the instrument by pressing the " Power Button "
( 3-1, Fig. 1 ).
2)Select the Light Measurement function by pressing the
" Function Button " ( 3-6, Fig. 1 ) until the light value is
displayed. The light display digits are oriented 180° from
the other function displays for easy exposure and output
reading of the light sensor.
3)Press the " Lux/Ft-cd Button " ( 3-5, Fig. 1 ) to
select measuring unit " Lux " or " Ft-cd ".
6

Zero Offset Adjustment of Light Function :
* For best results zero the light sensor prior to use in a
dark environment. Placing the light sensor end of the
meter under a desktop or flat surface so as to block
any light can accomplish this. Then press the
"Unit/Zero Button" ( 3-4, fig. 1 ) to set the meter
indication to zero.
* Zero point can drift due to environment temperature
and battery power change as well as for other reasons.
It is recommended that the zero be checked
frequently using the above procedure.
4-5 Change ,℃℉
During the temperature measurement, if intend to change the
temperature unit from " " to " " or " " to " ' " , then℃℉℉ ℃
just press the " / Button " once.℃℉
5. OTHER FUNCTIONS
5-1 Hold Function
Whenever press the "Hold Button (3-2, Fig. 1)" will freeze
the current reading value with a "HOLD" symbol on the
display.
5-2 Data Record Function
1)The Data Record function records & displays the maximum
and minimum reading values. Start the Data Record function
by pressing the " Max./Min. Button " ( 3-3, Fig. 1 ) once.
There will be a " REC " symbol on the display.
7

2)With the REC symbol on the display :
(a) Press the " Max./Min. Button " ( 3-3, Fig. 1 ) once and the
" Max " symbol along with the maximum value will appear on
the display.
(b) Press the " Max./Min. Button " again, the " Min " symbol
along with the minimum value will appear on the display.
(c) To exit the memory record function, press the " Max./Min.
Button " continuously for at least 2 seconds. The display will
revert to the current reading.
(d) Clear the Max./Min. value recorded by pressing the
" Hold Button " ( 3-2, Fig. 1 ) once. Previous recorded
Max./Min. value will be given up and then revert to the
REC. function keep on recording.
5-3 Auto Power Off Disable
In order to prolong the battery life, the instrument has "Auto
Power Off " function. The meter will switch off automatically if
no buttons are pressed for around 10 minutes.
6. BATTERY REPLACEMENT
1)
When the LCD display shows " " symbol, it is necessary
to replace the battery. However measurement may still be
made for several hours after the low battery indicator appears.
2)Open the " Battery Compartment / Cover " ( 3-12, Fig. 1) and
remove the battery.
3)Install a 9V battery (Alkaline or Heavy duty type) and then
reinstate the cover.
8