TENMARS TM-801 User guide

Carbon Monoxide Meter

TM-801

User’s Manual

HB2TM8010003

TENMARS ELECTRONICS CO., LTD

TABLE OF CONTENTS

1. PREFACE.........................................................1

2. GENERAL DESCRIPTION................................1

3. TECHNICALSPECIFICATIONS........................2

3.1. Characteristics........................................2

3.2. General data...........................................2

4. CO LEVELS AND STANDARDS........................3

5. INSTRUMENT DESCRIPTION..........................5

6. LCD DESCRIPTION..........................................6

7. POWER ON/OFF..............................................7

8. AUTO POWER OFF..........................................7

9. BACKLIGHT......................................................7

10. CHANGE THE TEMP UNIT...............................7

11. DATAHOLD......................................................8

12. CO ALARM SETTING .......................................8

13. MAXIMUM/MINIMUM/AVERAGE......................9

14. CALIBRATION ..................................................9

15. PRECAUTIONS..............................................10

16. COMPUTER GRADE...................................... 11

17. EXTERNAL DC POWER.................................11

18. SAFETYAND MAINTENANCE STANDARDS.11

19. BATTERY REPLACEMENT ............................12

20. END OF LIFE..................................................12

TM-801

1. PREFACE

Thank you for purchasing our product.
Please, read the operating instructions in details
before you use this CO meter,so you will operate
the meter correctly. This meter can be operated in
industry and home.

WARNING

Non-compliance warning and/or
operating instructions may damage
the instrument or its parts or injuring
the operator.

2. GENERAL DESCRIPTION

 Adjustable alarm: Adjustable alarm threshold

level(25/35/50/100/250/400/800/Randomly
Adjustable); Enable/Disable alarm.

 Dual and digital display of the CO and

temperature measuring.

 Maximum/Minimum/Average hold.
 Data hold(HOLD).
 Low battery indication “ ”.
 LED Backlight.
 Auto power OFF and disable function.

1

3. TECHNICAL SPECIFICATIONS

3.1.

Characteristics

Temperature

Accuracy is indicated as [% ofreading
+ppm]. It is referred to the following reference
conditions: 23°C ± 5°C with RH<75%.

CO※Carbon monoxide

Range 0 ~ 1000ppm
Resolution ±1ppm
Accuracy ±(5% +2ppm)
Repeatability < 2%
Response time

Zero drift in long term < 5ppm
Sensitivity drift < 5% (per year)
Typical sensor life 3 years

※

The response time refers to the fixed value

of 90% of the value.

※

< 30 seconds.

TM-801

Range
Resolution
Accuracy

-20~50℃/-4~122℉
±0.1℃/±0.1℉
±1.0℃/±1.8℉

3.2. General data

 4 dgt LCD with maximum 1000 counts.

60mm(W)x 47mm(L) monochrome LCD and
backlight.

 Sample rate:1 times/second

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TM-801

 Dimension: 156×73×35mm(LxWxH).
 Weight: approx 250g (Batteries not included).
 Power Supply :

UM-4(AAA)1.5V× 6 PCS or AC100~240V
DC9V/0.5A(9mm) Adaptor.

 Battery life : approx 90 hours.
 Operating Temperature & Humidity :

-20°C to +50°C，<80% RH。

 Storage Temperature & Humidity :

-10°C to +50°C，<70% RH。

 Data output : USB PC serial interface.
 StandardAccessories :

UM-4(AAA)1.5V battery ×6 PCS

、User’s manual

WARNING

To ensure that the accuracy of the
meter,We recommend for calibration
once a month.

 EMC :This test was designed in accordance

with EMC Standards in force and its
compatibility has been tested in
accordance with EN61326-1(2006).

4. CO LEVELS AND STANDARDS

3

TM-801

Carbon monoxide
content in the air
0-1 ppm Normal background levels.

9 ppm

35 ppm 8 hours

50 ppm 8 hours

0.01%(100 ppm) 2~3 hours

0.04%(400 ppm) 1~2 hours

0.08%(800 ppm) 45-min

0.16%(1600 ppm) 20-min

0.32%(3200 ppm) 5~10 min

0.64%(6400 ppm) 1~2 min

1.28%(12800 ppm) 1~3 min Will die.

Inspiration
time

Symptoms and applicable
standard

Maximum indoor air
quality level.
The average exposure
level per U.S. OSHA
workplace standards.
The maximum average
exposure of the U.S.
OSHA workplace
standards.
evacuate people from
enclosed space if the CO
concentration exceeds
100 ppm per OSHA
exposure limit.
Mild headache.
Headache occur in 2.5
hours to 3.5 hours.
Dizziness, nausea,
cramps(convulsions).
Headache, dizziness and
will be dead within 2
hours.
Headache, dizziness,
vomiting and will be dead
in 30 minutes.
Headache, dizziness and
will be dead within 10 to
15 minutes

4

TM-801

5. INSTRUMENT DESCRIPTION

1. HOLD Button 10. CO SENSOR

2. Power Button 11. USB

3. MAX/MIN/AVG
Button

4. MODE Button 13. HOLDER

5. Backlight Button 14. Battery Holder

6. SEL Button 15. Battery Cover

7. LCD

8. Temperature
Sensor

9. Earphone Jack

12. DC POWER

5

6. LCD DESCRIPTION

TM-801

1. SET symbol

2. HOLD symbol

3. REC symbol

4. MAX symbol

5. MIN symbol

6. AVG symbol

7. STEL symbol

8. TWAsymbol

9. Numeral reading

value

10.PPM unit

11.Temperature unit

12.Temperature Reading

13.Reading symbol

14.Memory symbol

15.Alarm symbol

16.Time constant symbol

17.Interval symbol

18.Time display

19.Auto power off

20.CO symbol

21.Low Battery symbol

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TM-801

7. POWER ON/OFF

Press button to turn on or turn off the meter.
It will be unable to turn off under setting up alarm,
and correction.

8. AUTO POWER OFF

The duration of auto power off time is 15 minutes.
If you want disable auto power off, please hold

button and press button at the power
shutdown mode. When you see the “n-SL” display
on the LCD, that means the auto power off
function is off. If you want enable auto power off,
please restart the meter.

※ The auto power off will disable if the alarm is

enabled.

9. BACKLIGHT

Press button to turn on the backlight, press
this button again to turn it off.
The backlight time is 15 seconds.

10.CHANGE THE TEMP UNIT

Press button to change the temperature
℃, ℉ unit。

7

TM-801

11.DATA HOLD

Freezes the reading present on the LCD screen at
the moment the button is pressed.

12.CO ALARM SETTING

Hold and press button for more than 2
seconds to enter into the alarm setting mode,
press button to choose and press
button to turn on(A-on) or turn off(A-oF) the alarm.
If you select the alarm to be turned on(A-on),

press button to select alarm value
(25/50/100/250/400/800/0000) and press
button to enable.
If you select the “0000”, press button
to adjust the value and press button to

enable.(Hold and press button to
High value adjustment, the highest setting value is
1200, and the lowest is 0.)

8

TM-801

13.MAXIMUM/MINIMUM/AVERAGE

Press button simultaneously Lockup data
maximum and minimum and average value of

measuring data. Press the “ ” button for
more than 2 seconds to disable this feature.

14.CALIBRATION

Please shutting down the meter first, then hold
and press button and press button
to enter into calibration mode. It will show a
blinking 0 ppm on the upper display and the
lower-left corner of the screen will display the
value of the ADC.

※ In the calibration, must away from the

environment or equipment with
electromagnetic waves.

 0 ppm Calibration

The meter is running 0 ppm calibration as
default.
Put the meter in an area free of CO and enter
the calibration mode. It calibrates automatically.
The duration of calibration time is 5 minutes.

9

TM-801

 100 ppm/500 ppm Calibration

After end of the 0 ppm calibration, the screen
will display 100 ppm, then press
button to select 100 ppm or 500 ppm value
and press button to start calibration. It
will show a blinking 100 ppm or 500 ppm on
the upper display and the lower-left corner of
the screen will display the value of the ADC
and place the meter into the sealed box filled
with standard gas(e.g. 100 ppm/500 ppm) for
5 minutes, then the calibration will be done
automatically.

※ Check if the reading meets calibration value. If

it does, the calibration is not, repeat the
procedure.

15.PRECAUTIONS

 Keep the meter away from electromagnetic

interference (EMI) which may cause erratic
readings.

 Recovering time is required when meter

exposed to high level CO. The longer the
exposure, the longer recovering time is
needed.

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TM-801

16.COMPUTER GRADE

• CPU:Pentium Ⅲ 1000MHZ.

• RAM:SDRAM 256MB.

• HARD DISK:200MB.

• OS:Windows 2000, Windows XP.

• DISPLAY :800×600 256 color

17.EXTERNAL DC POWER

External AC to DC adapter : Voltage 9 VDC(8~14
VDCMax).
Socket :Pin positive, Ground casing negative.
External Diameter 5.5mm ;Internal Diameter

2.1mm.

18.SAFETY AND MAINTENANCE

STANDARDS

• Do not put this device in direct sunlight or

where it is hot and/or damp.

• Operating altitude: below 2,000m.

11

TM-801

19.BATTERY REPLACEMENT

WARNING

If the LCD displays “ ”symbol, please

replace the battery immediately.

Turn off the power and unplug all cables, remove
the battery and replace into the new battery.
Please use the correct specification of the battery,
and correctly installed in the battery holder.

20.END OF LIFE

Caution : This symbol indicates that

equipment and its accessories shall
be subject to a separate collection
and correct disposal.

WARNING

If not using the meter, please remove the
battery to avoid possible damage.

12

TM-801

1

Professional Electrical and

TENMARS ELECTRONICS CO., LTD

Environment Test & Measurement

Instruments:

Battery Capacity / Impedance Tester

LED light meter, Temperature & Humidity meter,

Infrared Thermometer, Sound level meter

Light meter, EMF meter, UV Light meter,

RF meter, Hot wireAnemometer,CO meter

Anemometer, Lan cable tester, CO2meter,

Solar power meter, Radiation meter,

Clamp meter, Multimeter, Phase Rotation test,

Digital Insulation tester

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TAIPEI 114, TAIWAN.

E-mail: [email protected]

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