Tenmars TM-380 - User Manual

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Overview

Function Description
Important Technical Specifications
Usage Features
Maintenance Features

The TENMARS Multi IAQ Monitor TM-380 is an air quality meter designed to measure and display various indoor air quality parameters. It is ideal for monitoring indoor air quality in a variety of environments.

Function Description

The device provides real-time measurements of:

CO2 (Carbon Dioxide)
PM2.5 (Particulate Matter 2.5)
PM10 (Particulate Matter 10)
Temperature
Humidity

It features:

Maximum/Minimum/Average value display: Allows users to view the highest, lowest, and average readings for the measured parameters.
Auto-power on/off function: Helps conserve battery life.
Adjustment and calibration function: For CO2, temperature, and humidity.
CO2/PM2.5/PM10 red backlight alarm: The LCD backlight turns red and related measurement items flash when a set alarm value is reached.
Manual record and auto-record: Users can manually save data or set the device to automatically record measurements.
Key sound: Provides audible feedback for operations.
Overload indication (OL): Alerts the user if a measurement exceeds the device's range.

Important Technical Specifications

General:

Dimensions: 150mm (L) x 65mm (W) x 22mm (H)
Weight: 190 g
Display size: 52mm (L) x 40mm (W)
Operating temperature and humidity: 0°C ~ +50°C, <80%RH (no condensation)
Storage temperature and humidity: 0°C ~ +60°C, <70%RH (no condensation)
Operating altitude: up to 2000M
Operating environment: Indoor use; Pollution degree 2
EMC: EN61326-1:CISPR 11:Group 1, Class B

Power:

Battery: 3.7V 2000mAh rechargeable lithium battery
Transformer for charging: 1A/5V
Battery life: Approximately 6 hours of continuous use
External power supply: 5V micro USB interface

Measurement Parameters:

PM2.5:

Sensor: Laser particulate matter sensor
Measuring range: 0-500 µg/m³
Accuracy: ±8µg for <=50µg/m³, ±10% of reading value for >50µg/m³
Resolution: 1
Reaction time: <10 seconds

PM10:

Sensor: Laser particulate matter sensor
Measuring range: 0-500 µg/m³
Accuracy: ±10µg for <=50µg/m³, ±15% of reading value for >50µg/m³
Resolution: 1
Reaction time: <10 seconds

CO2:

Sensor: Non-Dispersion Infrared (NDIR)
Measuring range: 400 to 9999ppm
Accuracy: ±70ppm ±3% of readings (for 400-2000ppm)
Resolution: ±1ppm
Reaction time: 90% during about 2 minutes

Temperature:

Sensor: Bandgap temperature sensor
Effective range: -10°C~50°C / 14°F~122°F
Accuracy: ±1.0°C/±1.8°F (Non-charging and 30 minutes after charging)
Resolution: 0.1°C / 0.1F (0~35°C / 32°F~95°F); 1°C / 1°F (Above 100°C /°F or below -10°C /°F)
Reaction time: About 1 second

Humidity:

Sensor: Capacitive humidity sensor
Effective range: 1-99%
Accuracy: ±5.0%RH (10~90%); ±8.0%RH (<10%, >90%) no condensation, at 25°C
Resolution: 0.1%
Reaction time: About 4 seconds

Alarm Settings:

CO2 alarm setting: Default 1000PPM
PM2.5 alarm setting: Default 35µg/m³
PM10 alarm setting: Default 75µg/m³

Recording:

Manual and automatic recording: 20 logs
Auto-recording time interval settings: 5 seconds, 10 seconds, 5 minutes, 10 minutes, 20 minutes, 30 minutes, 60 minutes (default 5 seconds)
Sampling time: 2.5 seconds (5 types, 0.5 seconds for each)

Usage Features

Power On/Off:

Press the power button to turn the device on or off.

Auto Power Off:

In power-on status, press and hold the power button for more than 2 seconds to disable or resume the auto power off function.
When auto power off is activated, a clock icon appears, and the device will automatically turn off after 30 minutes.

Backlight Mode:

Press the "right-side button" to turn on or off the backlight.
When the red backlight for alarm is on, this button is invalid.
The backlight mode is turned off automatically after 15 seconds.

MAX/MIN/AVG and MAN MIN:

Press the MAX MIN button to enter this function. The MAX value is shown on the screen and it displays the maximum value.
Press the MAX MIN button repeatedly to select the function of MIN/AVG/MAX MIN/MAX and update the displayed value.
When selecting the MAX MIN function, it displays the current measured value.

REC Manual Record:

Press the REC button to save one data log. A "REC" icon and the log number appear on the LCD for one second.
For example, if the log number is 10, it will increase by 1 when pressing the REC button every time.
When reaching the maximum log number (20), "FULL" appears.

LOG Auto-Recording Function:

Press and hold the REC button for more than 2 seconds to start the auto-recording function. A "LOG" icon appears on the LCD, and auto-recording starts.
If the power is insufficient during auto-recording, a battery icon appears, and auto-recording will be forcibly stopped.
When reaching the maximum log number (20), "FULL" appears.
Press and hold the REC button again for more than 2 seconds to exit the auto-recording function.

Read Data Recorded in Memory:

Press the R-M button to enter the memory-reading mode. A "R-M" icon and the log number appear on the LCD for one second. The record is then displayed.
Read the data recorded in the memory with the R-M or REC buttons.
Press and hold the R-M button to exit this mode.

°C or °F Units:

At shutdown status, press and hold the R-M button, then press the power button to turn on the meter.
After the software version appears, release the R-M button.
Repeat the above steps to switch the unit.

Clear Memory:

At the shutdown status, press and hold the MAX MIN button and then press the power button to turn on the meter.
After the software version appears successively on the LCD, release the MAX MIN button to clear the memory.

Turn On/Off Key Sound:

The sound is defaulted as on and is displayed by a speaker icon.
At the shutdown status, press and hold the REC button and then press the power button to turn on the meter.
After the software version appears, release the REC button. If the speaker icon disappears, the key sound is off.
Repeat the above step to turn on the key sound.

Resume Factory Settings:

At the shutdown status, press and hold the "right-side button" and then press the power button.
After the software version appears successively on the LCD, release the "right-side button" to complete the process of resuming to the factory settings and clearing the memory.
This will set auto-shutdown to OFF, key sound to On, calibration value to 0, CO2 Abc to OFF, and clear memory.

Function Settings:

Press the "right-side button" for more than 2 seconds to enter the setting mode.
Press the "right-side button" repeatedly to enter setting functions 1 through 8 in sequence.
- SET 1. Time interval setting: Select interval from 5s to 60min.
- SET 2. CO2 alarm setting: Adjust CO2 alarm value.
- SET 3. PM2.5 alarm setting: Adjust PM2.5 alarm value.
- SET 4. PM10 alarm setting: Adjust PM10 alarm value.
- SET 5. CO2 Abc self-calibration mode: Factory calibration use only.
- SET 6. CO2 manual calibration: Directly increase or decrease the displayed value of CO2.
- SET 7. Temperature calibration: Directly increase or decrease the temperature value.
- SET 8. Humidity calibration: Directly increase or decrease the humidity value.

Maintenance Features

Battery Management:

The battery-low indicator (empty battery icon) indicates the battery is low; please charge it in time.
The battery-low indicator (flashing empty battery icon) indicates the battery is critically low, and the power will be turned off after 5 seconds.
Charging indication: The battery indicator will sequentially vary as it charges from right to left and shows a full battery icon when fully charged.
When the external power supply is connected, the auto-power off is disabled, and the white backlight is always on.

Cleaning:

If dirty, wipe with a soft cloth, such as a glasses cloth.
Do not clean with chemical solvents.

Repair:

If a fault occurs, the meter should only be sent to authorized service suppliers or returned to the original factory for maintenance.

Environmental Considerations:

High-humidity environments: If used in a high-humidity environment, place the meter in a low-humidity environment for 24 hours after use.
Product disposal: The device and its accessories should be subject to separate collection and correct disposal to avoid environmental pollution. Do not throw it away directly.

Tenmars TM-380 Specifications

General

Brand	Tenmars
Model	TM-380
Category	Monitor
Language	English