TENMARS TM-414, TM-402, TM-404, TM-403, TM-413A User guide

Air Velocity Meter
TM-401/402/403/404
TM-411/412/413/414

User Manual

HB2TM4010004

TENMARS ELECTRONICS CO., LTD

Table of Contents

1. Introduction ................................................. 1

2. CHARACTERISTICS .................................. 1

3. Functions Cross table.................................. 2

4. Air Velocity Meter Features......................... 4

5. Display Features ......................................... 6

6. Power On/Off............................................... 7

Auto Shutoff................................................. 7

LED Backlight.............................................. 7

Auto Backlight On/Off.................................. 8

Air Velocity Measures.................................. 9

7. Change Secondary Display Mode............. 10

8. Change Units............................................. 10

9. Air Flow Calculation....................................11

Setting Area................................................11

10. MAX/MIN/AVGrecord: .............................. 12

11. Freeze Display (HOLD)............................. 13

12. 99 Records................................................ 13

13. Clear Memory............................................ 14

14. Memory Recall .......................................... 15

15. Checking the LCD and Software Version.. 15

16. Battery Replacement................................. 16

17. Specifications............................................ 17

18. End of life.................................................. 19

TM-401~404/TM-411~414

1. Introduction

TM-4XX series measures air speed ,temperature
and humidity. It is ideal for spot measurements
at air outlets on account of its 30mm vane. In
addition to air speed and temperature, TM-404
and TM-414 also measures air moisture and
absolute pressure. In this way, air conditions can
be reliably checked.

2. CHARACTERISTICS

 30mm 6 plastics blade.(TM-40X)
 45mm 4 plastics blade.(TM-41X)
 Light air response 0.4m/s
 Rapid response temperature sensor
 Air flow calculate function.
 Max/Min/Avg and data hold.
 Auto power off with disable function.
 Low battery indication. “ ”
 Low battery indication.
 Data logging capacity: 99 records.
 Memory recall function.
 Backlight function.
 Absolute Pressure Sensor.
 Humidity Sensor
 DEW-POINT and WET-BULB temperature

measurement.

1

TM-401~404/TM-411~414

3. Functions Cross table

2

TM-401~404/TM-411~414

3

TM-401~404/TM-411~414

4. Air Velocity Meter Features

4

TM-401~404/TM-411~414

1. HOLD and Recall key

2. ESC and Rec key

3. Max, Min and AVG key

4. Select up and Auto shutoff key

5. Enter and Unit change key

6. Select down and Power key

7. Backlight and Set Key

8. Display and Backlight

9. Probes input

10. Battery placement

11. Battery cover

12. Probes Plug

13. Probes hold

14. Probes sensor (Temperature/Humidity)

15. Blades

16. Internal Pressure Sensor (TM-404/414)

17. Probes hold

18. Probes sensor (Temperature/Humidity)

19. Blades

5

TM-401~404/TM-411~414

5. Display Features

1. Primary display

2. Secondary display

3. Functional symbol display area

4. Lower battery indication.

5. Auto shutoff symbol indication.

6. Units of Primary display

7. Units of Secondary display

6

TM-401~404/TM-411~414

6. Power On/Off

In the shutoff mode Press key to turn on he
power.

If want to turn off Press and hold key.
※ In the Set ,Unit change and recall mode can

not turn off the power.

Auto Shutoff

The device will auto shutoff if there is no action for
15 minutes.
If want to disable or enable the auto power off

function, please press and hold key.
※ In the Set ,Unit change and recall mode can

not change this.

LED Backlight

When press key to turn on backlight. Press
key to turn off again. The backlight will turn off of
after 30 seconds.

7

TM-401~404/TM-411~414

Auto Backlight On/Off

Users can set on or off the 30-seconds auto-off
backlight

Press and hold key into setting mode.
Press and key to select BLIGHT
setting, as shown in figures. Press key into
Backlight setting. Press and key to
select auto off on or off. Press key to finish
and leave setting mode.

8

TM-401~404/TM-411~414

Air Velocity Measures

1. Please insert probe plug into the device
sensor input socket.

2. Fallow the arrows to measure velocity. As
shown in figures.

※ Please don not touch the blades by fingers or

foreign body to avoid damage to the blades.

9

TM-401~404/TM-411~414

7. Change Secondary Display

Mode

In the normal mode, Press and key to
change secondary display mode. The order of

℃CMM(CFM)℃

WET(403/404/413/414)

℃ DEW (403/404/413/414)
HPa(404/414)%RH (403/404/413/414).

※ In the Humidity mode need to waiting minutes

to acquire accuracy humidity reading.

8. Change Units

Press and hold key into the setting units
mode. If want to change the secondary display
units, please press and hold key again.

When in the setting units mode, LCD blink the
choose unit. Press and key to change

the units and press key to finish and leave
setting mode. Unit to switch the order of
Beaufurtktsfpmm/smphkph

10

TM-401~404/TM-411~414

9. Air Flow Calculation

When secondary display in the flow mode
(CMM/CFM), the device will calculate flow by the
users key in area volume.

Setting Area

Press and hold key into the setting mode.
Press and key to select setting area
mode, as shown in figures. Press key into the
setting area mode.
From left to right to set the digits, and press
and key to adjust digits to left or right. Press

and key to increase and decrease
volume through last right digits.
Users can press and hold key to change
area units (m2/ ft2).

11

TM-401~404/TM-411~414

※ The units(m2) maximum volume is 1.5 m2, and

minimum volume is 0.096 m2.

※ The units (ft2) maximum volume is 16.15 ft2,

and minimum volume is 1.03 ft2.

10. MAX/MIN/AVG record:

This function can record maximum, minimum and
average. User can select viewing. Press key
to start record MAX, MIN, and AVG. Show the
max reading to display. Press key to switch
viewing between MAX, AVGand MIN.
Press and hold key to disable this function.
※ In the Set ,Unit change and recall mode can

not used this function.

12

TM-401~404/TM-411~414

11. Freeze Display (HOLD)

Users can press key to freeze display, and
press key again to release display.

※ In the Set ,Unit change and recall mode can

not used this function.

12. 99 Records

Device cans storage air velocity data up to 99
records.

Press key to storage once record data, and
shown memory location on the LCD about 1
second.

※ When the enable HOLD and MAX/MIN

function, the record data still real reading.

13

TM-401~404/TM-411~414

13. Clear Memory

When the memory are full or want to clear
memory data, please fallow the setup to clear
memory.
Press and hold key into the setting mode,

as shown in figures.
Press and key to select the clear
memory mode.

Press key into the clear memory mode.
The LCD showed the “yes” to reconfirm.

Press key to leave or press key to
clear memory and leave clear memory mode.

14

TM-401~404/TM-411~414

14. Memory Recall

Users can recall the memory data to show on the
display.

Press and hold key into the RECALL mode.
The secondary display showed the memory
location and primary display showed the storage
velocity data.
Press and key to increase and
decrease memory location.

If want to leave the recall mode, please press and
hold key to leave this mode.

15. Checking the LCD and Software

Version

In the shutoff mode, Press and hold key to
turn on device and LCD will keep all dark continued.
Starting device will show the software version

about 1 second.

15

TM-401~404/TM-411~414

WARNING

16. Battery Replacement

If the symbol “ ” appears on the
LCD, please replace the battery

immediately
Turn off the device and disconnect all test leads
before replacing the battery.
Use only the correct type of batteries, properly
installed in the case, to power the device.

16

TM-401~404/TM-411~414

Unit

Range

Resolution

Accuracy

Beaufort

Unit

Range

Resolution

Accuracy

Beaufort

Unit

Range

Resolution

Accuracy

CMM

CFM

Unit

Range

Resolution

Accuracy

17. Specifications

Velocity(TM-401~TM-404):
m/s 0.4~20 0.1

Km/hr(kph) 1.5~72 0.1
mph 0.9~44 0.1
Knots(kts)
ft/min(fpm)

Velocity(TM-411~TM-414):

m/s
Km/hr(kph)
mph
Knots(kts)
ft/min(fpm)

Air Flow Calculation:

Temperature:

℃
℉

0.8~38

79~4000

1~8 1 --

0.4~30

1.5~106

0.9~66

0.8~58

79~5866

1~8 1 --

0~9999 1 -­0~9999 1 --

-20~60 0.1

-4~140 0.1

0.1
1

0.1

0.1

0.1

0.1
1

±2﹪+0.2
±2﹪+0.8
±2﹪+0.4
±2﹪+0.4

±2﹪+40

±3﹪+0.2
±3﹪+0.8
±3﹪+0.4
±3﹪+0.4

±3﹪+40

±1℃

±1.8℉

17

Humidity:

Unit

Range

Resolution

Accuracy

Unit

Range

Resolution

Accuracy

TM-401~404/TM-411~414

%RH 20~80 0.1
%RH <20 , >80 0.1

±3.5%RH

±5%RH

Absolute Pressure:

hPa 350~1100 0.1

mmHg 263~825 0.1

inHg 10.3~32 0.1

±2hPa

±1.5mmHg

±0.1

 Display : 42mm(W) x33mm(L) Monochrome

LCD with backlight

 Battery : 9V (NEDA 1604、IEC 6F22 or JIS

006P)

 Battery Lift : Approx continuous used 100

hours.

 Shutoff Rate Power : 3uA
 Operate Maximum Power : 25mA
 Operating temperature and humidity :

5℃to 40℃,below 80% RH.

 Storage temperature and humidity : -10℃ to

60℃, below 70%.

 Instrument dimensions : 130(L)x 56(W)x 38(H)

mm. Weight : About 160g.

 Probe dimensions (TM-401~TM-404) : 195(L)

x47(W) x30(H) mm.

18

TM-401~404/TM-411~414

Cable length : 95cm.

 Probe dimensions (TM-411~TM-414) :

135(L) x67(W) x31(H) mm.
Cable length : 95cm.

 Weight : About 100g.
 Accessories : User’s manual x1, 9V battery x1,

Probe x1, Bag x1

18. End of life

Caution:

This symbol indicates that
equipment and its accessories shall
be subject to a separate collection
and correct disposal

19

Professional Electrical and

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Our products 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: [email protected]

http://www.tenmars.com