Tenmars TM-412 User manual

Air Velocity Meter
TM-411/412/413/414
HB2TM4110000
TENMARS ELECTRONICS CO., LTD
User’s Manual

Table of Contents
1. Introduction ............................................... 1
2. Features.................................................... 1
3. Functions Cross table ............................... 2
4. Air Velocity Meter Features....................... 3
5. Display Features ....................................... 5
6. Power On/Off ............................................ 6
7. Auto Shutoff .............................................. 6
8. LED Backlight ........................................... 6
9. Auto Backlight On/Off ............................... 7
10. Air Velocity Measures ............................... 8
11. Change Secondary Display Mode............. 9
12. Change Units ............................................ 9
13. Air Flow Calculation ................................ 10
14. Setting Area ............................................ 10
15. MAX/MIN/AVG record: .............................11
16. Freeze Display (HOLD)........................... 12
17. 99 Records ............................................. 12
18. Clear Memory ......................................... 13
19. Memory Recall ........................................ 14
20. Checking the LCD and Software Version 14
21. Battery Replacement .............................. 15
22. Specifications.......................................... 15
23. End of life................................................ 17

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1. Introduction
TM-40X 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
also measures air moisture and absolute pressure.
In this way, air conditions can be reliably checked.
2. Features
45mm 4 plastics vane
High sensitivity of 0.4m/s.
Air flow calculate function.
Max/Min/Avg and data hold.
Auto power off with disable function.
Low battery indication. “ ”
Low battery indication.
Datalogging capacity: 99 records.
Memory recall function.
Backlight function.
Absolute Pressure Sensor
Humidity Sensor

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3. Functions Cross table

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4. Air Velocity Meter Features

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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. Vane
16. Internal Pressure Sensor (TM-414)

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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

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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.
7. 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.
8. LED Backlight
When press key to turn on backlight. Press
key to turn off again. The backlight will turn off of
after 30 seconds.

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9. 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.

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10. 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.