Tenmars TM-740 User manual

TeNMARS

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Professional Electrical and

Environment Test &Measurement

Instruments:

Battery Capacity

/Im

pedance Tester

LED light meter, Temperature & Humidity

meter,lnfrared Thermometer, Sound level

meter Light meter, EMF meter, UV Light meter,

RF meter, Hot wire Anemometer, CO meter

Anemometer, Lan cable tester,

2meter,

Solar power meter, Radiation meter,

Clamp meter, Multimeter, Phase Rotation test,

Digital Insulation tester

Our Qroducts of high quality are selling

well all over the world

TENMARS ELECTRONICS CO., LTD

6F, 586, RUI GUANG ROAD, NEIHU,

TAIPEI 114, TAIWAN.

E-mail: service@tenmars.com

http://www.tenmars.com

MARS

Air Velocity Meter

TM-740

User's manual

HB2TM7400002

TEN ARS ELECTRONICS CO., LTD

TENMARS

TM-740

Table

Contents

1. Description 3

2. Safety Precaution 3

3. features 5

4. Specifications 5

General Specifications 5

Electrical Specification: 6

Accessories: 6

5. Air Velocity Measures 7

6. Operation 8

6.1. Velocity Unit Button: 8

6.2. CALI"C/

Button: 8

6.3. °CI"F Button: 8

6.4. MAXIMIN/AVG Button: 8

6.5. Data Hold button: 9

6.6. Power Button: 9

6.7. Auto Power: 9

6.8. Enable/disable auto power off 9

7. Instrument Description 10

8. Battery Replacement 11

9. End of life 11

1. Des

cri

ption

TM-740 measures air speed and temperature. It

is ideal for spot measurements.

at air outlets on account of its 30mm vane. In

addition to air speed and temperature.

2. Safety Precaution

• Do not operate the meter under the

environment with explosive gas (material),

combustible gas (material) steam or filled with

dust.

• In order to avoid reading incorrect data, please

replace the battery immediately when the

symbol "

tIE

" appears on the LCD.

• In order to avoid the damage caused by

contamination or static electricity, do not touch

the circuit board before you take any adequate

action.

TENMARS

TM·740 TE

MARS

TM·740

• Operating Environment : Indoors use. This

instrument has been designed for being used

in an environment of pollution degree 2.

• Operation Altitude : Up to 2000M.

• EMC : EN61326-1(2006), IEC 61000-4-2(2008,

IEC 61000-4-3(2006) + (2007).

3. Features

• 30mm 6 plastics vane.

• Light air response OAm/s.

• MaxlMin/Avg and data hold.

• Auto power off with disable function.

4. SPECIFICATIONS GENERAL

SPECIFICATIONS

• Display : Dual LCD display. The maximum

value on the primary display is 9999. The

maximum value on secondary display is 999.

• Low Battery Indicator : When the LCD displays

n n8 symbol, please replace the battery.

• Sampling

Rate:

1 sample per second.

• Power Supply: 2 batteries 1.5V AAA MN2400

LR03 AM4.

• Battery Life : 50 hours during consecutive use.

• Dimensions : 135 x48 x23 mm (L xWxH).

• Weight : 80g (excluding the battery).

• Accessories : User manual, battery, and

carrying case.

TENMARS

TM-740

TENMARS

TM-740

• Operating Temperature and Humidity: 5. AIR VELOCITY MEASURES

5°C - +50°C, <95% RH. Fallow the arrows to measure velocity. As

• Storage Temperature and Humidity : shown in figures.

-10 to 60°C, <70% RH.

Electrical Specification:

Velocity

Unit

Ranae Resolution

Accuracy

mls 0.4- 25 0.1 ±2%+0.2

Km/hr(kph) 1.5

-90

0.1 ±2%+0.8

mph

0.9-55

0.1 ±2%+0.4

Knots(kts)

.8-48

0.1 ±2%+0.4

ftImin(fpm) 79-4921 1 ±2%+40

WARNING

Please don't touch the vanes by fingers

or foreign body to avoid damage to the

vanes.

Temperature:

Unit

Range Resolution

Accuracy

'c -20-50 0.1 ±1'C

'F -4- 122 0.1 ±1.8'F

Accessories

• User manual.

• 1.5V battery (

MN2400 LR03 AM4)*2.

• Carrying case.

TeNMARS TM-740

TeN

MARS

T -740

Oper

ation

6.1. Velocity Unit Button:

Select the mls -+ Knots(kts) -+fUmin(fpm)

-+Km/hr(kph) -+ mph.

6.2. CAL I ·CI of Button:

Calibration of 10 m/s

1. Prepare the 10m/s velocity.

2. Press CAL button and POWER button

more than 2 second the LCD will

display CAL.

3. Unlocks buttons.

4. Press CAL button again more than 2

second the meter will shut down.

5. Correct succeed.

6.3. 0

of Button :

Select °CI r .

6.4. MAXIMIN/AVG Button :

Press "MAXIMIN" button simultaneously

Lockup data maximum and average and

minimum value of measure data. Press

the "MAXIMIN" button for more than 1

second to disable this feature.

6.5. Data Hold button:

Freezes the reading present on the LCD

screen at the moment the button is

pressed.

6.6. Power Button:

Press th

" button more than 2

second to power on the meter.

6.7. Auto Power:

To save battery life, the meter powers

down automatically after approximately

12 minutes of inactivity.

6.8. Enable/disable auto power off

Power Off by pressing the " " button

more than 2 second the LCD "

0,,

symbol

will disappear or enable.

WARNING

If the symbol " CZI "appears on the

LCD, please replace the battery

immediatel .

•

TEN

MARS

TM-740

TE··

.......

,- - TM·720

7. Instrument Description 8 Battery Replacement

1. Vane.

2. Display (LCD).

3. Velocity unit select button.

4. Calibration and ·CI''F button. 1. Remove the battery cover.

5. Data hold button. 2. Replace the battery.

6. Maximun/Average/minimum button. 3. Install the battery cover.

7. Power Button : ON/OFF.

" • j

; _ '

I Caution : this symbol indicates that

___

"';1 - - equipment and its accessories

4 shall be subject to a separate

collection and correct disposal.

10 11

9 END OF LIFE

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