PROTMEX PTH Series User manual

PTH Series
Carbon Dioxide Monitor
User Manual
General Version for
PTH-4 & PTH-5

Please read this manual carefully before using and keep it properly for reference in future.
Function
Packing List
Thanks for your purchasing the carbon dioxide detector. This product could detect the
CO2value from 400 ppm to 5000 ppm with Non-dispersive infrared technology. As we
know, long-term inhalation of excessively high concentration of carbon dioxide can
easily induce hypoxic asphyxia in the body. This CO2detector could keep you away from
these troubles. The product is widely used in the crowded occasions, such as cars, baby
rooms, offices, greenhouses, farms, etc.
Please check the accessories list of the instrument you purchased according to different
models.
1. PTH series carbon dioxide monitor × 1 2. 18650 lithium battery × 1 (built-in)
4. USB cable × 13. user manual × 1
Special statement: The illustrations of the products, accessories and user interface in
the manual are all schematic diagrams and are for reference only. If there is a difference
between the actual product and the schematic diagram due to product updates and
upgrades, please refer to the actual product received and the manufacturer will not
notify you separately.
Full scale correction for the temperature measurement with the Non-dispersive
infrared technology;
Temperature and humidity measurement (only for PTH-5);
Multi-mode alarms, such as LED indicator, Buzzer and comfortable emoji;
Easy to operate with two buttons;
Built-in Lithium battery 18650 and support long working time;
USB charging;
Easy to stand on the table with the bracket.
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Product operation instructions
1. Product Introduction
3. Measuring
Long press A button, the instrument starts to work, the screen will display carbon
dioxide levels and comfort expressions.
2. Charging
Icon displays
LCD Display Status
Icon flashes
Icon flickers
Full Battery
Charging
Low power
Front
(PTH-4)
Front
(PTH-5)
Side Back
Screen
Indicator
light
Vent
A Button
Table Bracket
B Button
USB Charging
Port
Please charge the detector with the Micro USB in the box and with the additional power
adapter of “5V⎓1A”. Please be attention the USB cable can not be exceed 1 meter if use
the other USB cable. Qualified USB cable and power adapter are needed. Non-standard
power adaptor is prohibited. In general, the battery could be charged fully after 4 to 6
hours. (The data is only for reference. The actual time will be affected by various
factors). Please refer to below table with the battery icon indication.
02

4. Button operation
OperationButton PTH-4
Power on / off Power on / off
/
Backlight on-off
Switching Backlight mode
PTH-5
Switching temperature
units between °C & °F
Backlight on-off
Switching Backlight mode
Put it in a ventilated place to perform manual
calibration data, Automatic calibration
is completed after 200 seconds countdown
Short press
Long press
Short press
Long press
Power off
then
press at the
same time
for three
seconds
A
A+B
B
5. Alert
Whether the Carbon dioxide value exceeds the standard is indicated by the expression
icon and indicator light, as shown in the following table:
Description:
In the breath screen state, the indicator light state is the breathing light effect, and
the user can wake up the backlight by pressing the B key briefly;
Manual calibration procedure:
1) Power off then press A & B button at the same time for three seconds;
2) Put it in a ventilated place;
3) After counting down 200 seconds, the product automatically completes the
calibration.
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2.
Good Normal Bad
03

MeaningLight
GoodGreen
NormalYellow
BadRed
You can also directly judge whether the formaldehyde value exceeds the standard through
the indicator light. The following is the comparison table of indicator light color and its
meaning:
When the measured value is between 400 ~ 700 ppm, the Carbon dioxide󵿎value󵿎belongs
to the safe range;
When the measured value is between 700 ~ 1500 ppm, the󵿎 Carbon dioxide󵿎 value󵿎
belongs to the warning range and needs close obser vation;
When the measured value exceeds 1500 ppm,󵿎the Carbon dioxide󵿎 value exceeds the
standard and must be open the window for ventilation.
Specifications
The following table provides the specifications of the measurement parameters
Specification PTH-4 PTH-5
Temperature Range
Humidity Range
/
/
-10°C ~ 40°C(±1°C)
20 ~ 80% (±5% RH)
Carbon Dioxide Value
Power Supply
Indicator Light
Input
Size
Work Temperature
5 V⎓1 A
83 × 83 × 32 mm
0°C ~ 40°C
Resolution：1 ppm；Range：400 ~ 5000 ppm
18650 lithium batter / 2400 mAh
√
04

Notice
This product should not be dipped in water, nor should it be placed in a high
temperature environment exceeding 60℃;
This product belongs to precision measuring instrument and shall not be dismantled
without authorization;
It can not be measured in the environment of organic gas with too high concentration
for a long time;
Built-in lithium battery, when measuring the air quality in the car, please do not put
the carbon dioxide detector with lithium battery in the sun.
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