TENMARS TM-402A Air Velocity Meter User Manual
- June 9, 2024
- TENMARS
Table of Contents
- Introduction
- CHARACTERISTICS
- Functions Cross table
- Air Velocity Meter Features
- Display Features
- Power On/Off
- Change Secondary Display Mode
- Change Units
- Air Flow Calculation
- MAX/MIN/AVG record
- Freeze Display (HOLD)
- 99 Records
- Clear Memory
- Memory Recall
- Checking the LCD and Software Version
- Battery Replacement
- PRECAUTIONS
- Specifications
- End of life
- References
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
**TENMARS TM-402A Air Velocity Meter User Manual
**
Introduction
TM-4XXA 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-404A and TM-414A also measures air moisture and absolute pressure. In this way, air conditions can be reliably checked.
CHARACTERISTICS
- 30mm 6 plastics blade.(TM-40XA)
- 45mm 4 plastics blade.(TM-41XA)
- 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.
Functions Cross table
Functions| TM402A (With Pr401T)| TM403A (With Pr401T)| TM404A
(With Pr401T)
---|---|---|---
Velocity| ●| ●| ●
Flow| ●| ●| ●
99 Record| ●| ●| ●
Temperature| ●| ●| ●
Humidity| | ●| ●
Pressure| | | ●
Functions| TM412A (With Vane-01)| TM413A (With Vane-01)| TM414A
(With Vane-01)
---|---|---|---
Velocity| ●| ●| ●
Flow| ●| ●| ●
99 Record| ●| ●| ●
Temperature| ●| ●| ●
Humidity| | ●| ●
Pressure| | | ●
Air Velocity Meter Features
- HOLD and Recall key
- ESC and Rec key
- Max, Min and AVG key
- Select up and Auto shutoff key
- Enter and Unit change key
- Select down and Power key
- Backlight and Set Key
- Display and Backlight
- Probes input
- Battery placement
- Battery cover
- Probes Plug
- Probes hold
- Probes sensor (Temperature/Humidity)
- Blades
- Internal Pressure Sensor (TM-404A/414A)
- Probes hold
- Blades
Display Features
- Primary display
- Secondary display
- Functional symbol display area
- Lower battery indication.
- Auto shutoff symbol indication.
- Units of Primary display
- Units of Secondary display
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.
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.
Air Velocity Measures
- Please insert probe plug into the device sensor input socket.
- 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.
Change Secondary Display Mode
In the normal mode, Press and key to change secondary display mode. The order of ºCCMM(CFM) ºC WET(403A/404A/413A/414A) ºC DEW (403A/404A/413A/414A) HPa(404A/414A)%RH (403A/404A/413A/414A).
- In the Humidity mode need to waiting minutes to acquire accuracy humidity reading
Change Units
Press and holdkey into the setting units mode.
If want to change the secondary display units, please press
andhold key again.
When in the setting units mode, LCD blink the choose unit. Press and key to
change the units and presskey to finish and leave
setting mode. Unit to switch the order of Beaufurt kts fpm m/s mph kph
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.
Presskey into the setting area mode.
From left to right to set the digits, and press
andkey to adjust digits to left or
right.
Press and key to increase and decrease volume through last right digits.
Users can press and holdkey to change area units (m2 / ft2
).
- 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 .
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, AVG and MIN.
Press and hold key to disable this function.
- In the Set ,Unit change and recall mode can not used this function.
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.
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.
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.
Presskey into the clear memory mode.
The LCD showed the “yes” to reconfirm.
Press key to leave or presskey to clear memory and leave
clear memory mode.
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.
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.
Battery Replacement
WARNING
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.
PRECAUTIONS
Removing Probe (With LOCK) :
Specifications
Velocity(TM-402A~TM-404A):
| Unit | Range | Resolution | Accuracy |
|---|---|---|---|
| m/s | 0.4~20 | 0.1 | ±2﹪+0.2 |
| Km/hr(kph) | 1.5~72 | 0.1 | ±2﹪+0.8 |
| mph | 0.9~44 | 0.1 | ±2﹪+0.4 |
| Knots(kts) | 0.8~38 | 0.1 | ±2﹪+0.4 |
| ft/min(fpm) | 79~4000 | 1 | ±2﹪+40 |
| Beaufort | 1~8 | 1 | — |
Velocity(TM-411~TM-414):
| Unit | Range | Resolution | Accuracy |
|---|---|---|---|
| m/s | 0.4~30 | 0.1 | ±3﹪+0.2 |
| Km/hr(kph) | 1.5~106 | 0.1 | ±3﹪+0.8 |
| mph | 0.9~66 | 0.1 | ±3﹪+0.4 |
| Knots(kts) | 0.8~58 | 0.1 | ±3﹪+0.4 |
| ft/min(fpm) | 79~5866 | 1 | ±3﹪+40 |
| Beaufort | 1~8 | 1 | — |
Air Flow Calculation:
| Unit | Range | Resolution | Accuracy |
|---|---|---|---|
| CMM | 0~9999 | 1 | — |
| CFM | 0~9999 | 1 | — |
Temperature
| Unit | Range | Resolution | Accuracy |
|---|---|---|---|
| ºC | -20~60 | 0.1 | ±1ºC |
| ºF | -4~140 | 0.1 | ±1.8ºF |
Humidity:
| Unit | Range | Resolution | Accuracy |
|---|---|---|---|
| %RH | 20~80 | 0.1 | ±3.5%RH |
| %RH | <20 , >80 | 0.1 | ±5%RH |
Absolute Pressure:
| Unit | Range | Resolution | Accuracy |
|---|---|---|---|
| hPa | 350~1100 | 0.1 | ±2hPa |
| mmHg | 263~825 | 0.1 | ±1.5mmHg |
| inHg | 10.3~32 | 0.1 | ±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 : 5ºCto 40ºC,below 80% RH.
-
Storage temperature and humidity : -10ºC to 60ºC, below 70%.
-
Instrument dimensions : 40(L)x 65(W)x 38(H) mm.
Weight : About 285g(TM-402A~403A).
About 240g(TM-404A).
About 296g(TM-412A~414A). -
Probe dimensions (TM-402A~TM-404A) : 195(L) x47(W) x30(H) mm. Cable length : 95cm.
-
Probe dimensions (TM-412A~TM-414A) : 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′
End of life
Caution:
This symbol indicates that equipment and its accessories shall be subject to a
separate collection and correct disposal
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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