REED LM-8000 User manual

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Model
LM-8000
4-in-1 Pocket
Thermo-Anemometer,
Hygrometer,
Thermometer &
Illuminometer
Instruction
Manual
REED Instruments

reedinstruments
www com
2
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Table of Contents
Features......................................................................................2-3
Specications.............................................................................3-4
Instrument Description .................................................................. 5
Measuring Procedures ...............................................................5-6
Air Velocity Measurement............................................................ 5
Temperature Measurement (Thermocouple) .............................5-6
Relative Humidity Measurement .................................................. 6
Light Measurements ................................................................... 6
Additional Functions...................................................................... 7
Hold Function ............................................................................. 7
Data Record Function ................................................................. 7
Auto Power Off .......................................................................... 7
Battery Replacement..................................................................... 8
For service on this or any other REED product or information on other
REED products, contact REED Instruments at info@reedinstruments.com
REED Instruments

reedinstruments
www com
3
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Features
• 4-in-1 multi-function meter... anemometer, humidity meter, light meter
and type-K digital thermometer
• Type K (NiCr-NiAl) thermocouple input jack
• High precision thin-lm capacitance humidity sensor
• Photo diode and colour correction lter light sensor
• Velocity Units: m/s, kph, mph, knots, and fpm
• °F or °C and Lux or Ft-cd selectable
• Data Hold, Record (Max/Min)
• Includes batteries
Specifications
Power Supply: Single 9V battery
Dimensions: 6.1 x 2.4 x 1.3” (156 x 60 x 33mm)
Weight: 8.8 oz (160g)
Optional Accessories: Air/Gas Probe (LS-103)
Right Angle Surface Probe (LS-104)
General Purpose Probe (LS-107)
Surface Probe (LS-109)
Needle Tip Probe (LS-134A)
Surface Probe (LS-139)
Soft Carrying Case (CA-52A)
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
(thermister)
32 to 122°F 0.1°F
0 to 50°C 0.1°C
REED Instruments

reedinstruments
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4
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Range Resolution
Humidity
% RH 10 to 95 %RH 0.1 %RH
Temperature
(thermister)
32 to 122°F 0.1°F
0 to 50°C 0.1°C
Light
*auto range
Lux 0 to 2,200 Lux 1 Lux
1,800 to 20,000 Lux 10 Lux
Ft-cd 0 to 204.0 Ft-cd 0.1 Ft-cd
170 to 2,000 Ft-cd 1 Ft-cd
Temperature (Type K) -148 to 2372°F 0.1°F
-100 to 1300°C 0.1°C
Range Accuracy
Air velocity
80 to 5910 ft/min
≤ 20 m/s : ± 3% F.S.
> 20 m/s : ± 4% F.S.
0.4 to 30.0 m/s
1.4 to 108.0 km/h
0.9 to 67.0 mile/h
0.8 to 58.3 knots
32 to 122°F ± 2.5°F
0 to 50°C ± 1.2°C
Humidity
10 to 95 %RH < 70% RH : ± 4 %RH;
≥70% RH : ± ( 4%rdg + 1.2 %RH )
32 to 122°F ± 2.5°F
0 to 50°C ± 1.2°C
Light 0 to 20,000 Lux ± 5% rdg ± 8 dgt
0 to 2,000 Ft-cd
Temperature
(Type K)
-148 to 2372°F ± (1% rdg + 2°F)
-100 to 1300°C ± (1% rdg + 1°C)
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 = foot candle
REED Instruments

reedinstruments
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5
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Instrument Description
1. Power Button
2. Hold Button
3. Max/Min Button
4. Unit/Zero Button
5. °C/°F Button & Lux/Ft-cd Button
6. Function Button
7. Air Flow Sensor
8. Thermocouple Input Socket
9. R.H. Sensor
10. Light Sensor
11. LCD display
12. Battery Compartment/
Cover
13. Wristlet
Operating Instructions
Air Velocity Measurement
1. Power on the instrument by pressing the Power Button
2. Select the Anemometer function by pressing Function Button
3. Press the Unit/Zero Button to select unit that you want and then
face the Air Flow Sensor to the source of wind
4. Allow time for the reading to become stable and note the value
indicated
REED Instruments

reedinstruments
www com
6
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Thermocouple Temperature Measurement
1. Power on the instrument by pressing the Power Button
2. Plug a type K thermocouple probe in the Thermocouple Input
Socket
3. Select the Temperature function by pressing Function Button
4. Contact the Thermocouple Sensor Head with the object being
measured and the reading value will be displayed on the LCD
display
Humidity & Ambient Temperature Measurement
When the meter is applied in a new environment, it will take a few minutes
to reach a stable condition
1. Power on the instrument by pressing the Power Button
2. Select the Relative Humidity function by pressing the Function
Button
3. The reading value of relative humidity and temperature will be
displayed on the LCD display
Light Measurement
1. Power on the instrument by pressing the Power Button
2. Select the Light Measurement function by pressing the Function
Button until the light value is displayed
3. Press the Lux/Ft-cd Button to select measuring unit Lux or Ft-cd
Zero Offset Adjustment of Light Function
• For best results you should zero the light sensor prior to use in a dark
environment. To achieve this, place the light sensor end of the meter
under a desktop or at surface to block any light. Press the Unit/Zero
Button setting the meter indication to zero.
• The zero point can drift due to environment temperatures, battery
power, as well as various other reasons. It is recommended that the
zero be checked frequently using the above procedure.
REED Instruments

reedinstruments
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7
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Hold Function
Pressing the Hold Button will freeze the current value with a HOLD symbol
on the display. Press again to release the hold function.
Data Record Function
The Data Record function records & displays the maximum and
minimum reading values. Start the Data Record function by pressing the
Max./Min. Button once. There will be a “REC” symbol on the display. With
the REC symbol on the display:
1. Press the Max/Min Button once and the Max symbol along with
the maximum value will appear on the display.
2. Press the Max/Min Button again, the “Min” symbol along with the
minimum value will appear on the display.
3. 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.
4. To clear the Max/Min value recorded by pressing the Hold Button
once. The previously recorded Max/Min value will be lost and then
revert to the REC function continuing to record.
Auto Power Off
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.
REED Instruments

reedinstruments
www com
8
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Battery Replacement
When the left corner of the LCD display shows the low battery symbol,
this indicates that replacement of the battery is then needed. However
specication measurements could still be taken for another few hours
before the meter becomes inaccurate.
1. Open the Battery Cover at the back of the meter and remove the
battery
2. Replace with a 9V battery (alkaline or heavy-duty type) and rein-
stall the cover
For service on this or any other REED product or information on other
REED products, contact REED Instruments at info@reedinstruments.com
Notes _________________________________________
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REED Instruments
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