wintact WT8823 Combustible Gas Detector Instruction Manual

MODEL: WT8823
Combustible Gas Detector
Instruction manual

Standard: Q/HTY 011-2018
Version: WT8823-84-00

Introduction

Combustible gas (EX) detector is an instrument detecting gas leak concentration. It has a high-definition screen to display measured values, and stable performance to ensure safety and reliability. With a small and portable design, it is suitable for the detection of gas pipelines, exhaust gas, and fuel leaks, propane irrigation stations, flammable gas pipeline, etc.

Functions

• HOLD data holding
• MAX maximum value! MIN minimum value
• Alarm setting Is- Calibration
• On/Off (Timed Shutdown)

Safety instruction

For your safety, please read this manual before operation.

This operation may induce physical hazards to users. Please be careful.
This operation may cause damage to the instrument. Please be careful.
Warning!
If there is exploding accident happening:

• Cut off all the potential gas resources.
• Keep the rescuing area ventilated and no potential combustible gas existing.
• Switch off all the power connections.
• Evacuate all the people in the area.
• Report to the authorities immediately.

In daily work, please keep the work environment ventilated, for good ventilation can ensure that combustible gas will not accumulate.

Warnings and Precautions

Improper operation or improper environment for usage may cause inaccurate measurement.
The environments with high or low oxygen concentration may cause inaccurate measurements.
Other impurities such as gas or water vapor may affect the normal measurement of the combustible gas sensor.
The sensor aperture must be kept clean, or impurities may cause inaccurate measurements.

When replacing batteries, be careful not to install batteries backward, otherwise, it may cause the danger of electric leakage and accidents.
If the instrument breaks down, please turn to the professional staff of our company for help, other people should not change components and wiring.
Do not disassemble the instrument in hazardous environments.
Do not disassemble the battery in explosive environments.
This product complies with the following procedures and calibration:

JJG693-2004, 0B3836.1-2010 GB3836.4-2010, GB4208

International safety knowledge

This operation must refer to the instruction.
Please be careful. Complying with eu standard
Explosion-proof sign: Ex ib IIB T3 Gb

Name of Each Component (Figure 1)

1. Power and backlight on/off button.
2. Measurement data holding and setting button.
3. Maximum/minimum value mode-locking/ Up button.
4. Down button.
5. LCD display.
6. Sensor hole.
7. LED alarm light.
8. Sticker spot for the nameplate.
9. Battery door.

LCD Display (Figure 2)

1. Power on-off: long press to start up perform normal measurement rement after 10 seconds, long press to shut down.
2. Data holding: Short press: short press it again to exit.
3. Maximum/minimum value mode: Short press for maximum value, short press it again for minimum value short press it again to exit.
4. Unit switch: No extra function.
5. Setting: long press to enter setting mode, short press I to switch setting items, short press and to switch on/off, long press to exit.

a. “ELE” temperature unit switch
b. “OFF” timed shutdown switch
c. “bu2″ buzzer switch
d. ‘HI/LO-alarm value setting e. ‘CAL” calibration
Note:

1. Temperature refers to the internal temperature of the instrument.
2. The timed shutdown is set as 10 minutes.
3. A buzzer switch refers to a button pressing sound and alarm sound.
4. Alarm value setting: Short press high and low alarm point, long press short press to switch setting digit, short press and to set alarm value, long-press to save and exit.
5. This operation should be performed with sufficient battery power. Short press and to switch calibration point. Users can calibrate points under an airy environment (in normal temperature) by long-pressing to start calibration. When calibration is finished, “PASS” will be displayed automatically; if not, “Err will be displayed. “40” calibration point is calibrated by the factory and needs to be operated in a closed environment filled with flammable gas. Press to start calibration. The display switches from ‘CAL” to ADC value. After the value is stable, long-press amain to complete the calibration. After successful calibration, long press to fine-tune calibration value (by short pressing and ) and long press again to save calibration value.
6. Lock: long press to lock the operation.

(6) Unlock: Under the power-off state, short press , and tat the same time to enter unlock interface. Short press switches setting digit. Short press and I to set value. The user needs to ask the original factory for the password, and a long press to unlock and restart.
(7) Charging:

1. Under the power-off state, Charging ‘CHrg” shows up during charging. At this time, long press power button to turn on the instrument. -donE” is displayed when the instrument is fully charged.
2. Under the power-on state, increasing the grid in the cycle indicates charging. Three grids indicate full power.
3. “Err1” shows up when the battery is faulty.

Note: This instrument is equipped with a nickel-metal hydride rechargeable battery, please use after charging (power adapter specification: DC 5V/1A. I.e. ordinary mobile phone charger). This instrument is not equipped with a power adapter.

Specifications

[1].LEL stands at a low limit for the explosion, the lowest content of combustible gas in air that results in an explosion can be referred to as %LEL. AWarning: prohibit charging or disassembling batteries in an explosive environment.

Others

1. Gas detecting: The instrument is an advanced detection apparatus that can be used to test the leakage of a variety of flammable gases.
2. Combustible gas: The following list only shows partial gases can be detectable.

3. Keep-up and maintenance:

1. Keep-up:

• Keep-up and replacement of battery: Take out the battery from the unit which will not be operated for a long timeless the leakage of battery damage and erodes the battery contact metal.
• Case cleaning: Use only the fresh water to clean the case of the product, forbidden to use any erosive liquid such as alcohol, etc.
• Make sure the sensor is clean and use a soft brush to clean the sensor aperture.
• Never impact it or operate and store it in a humid environment. IN- Do not store the product in the environment below:

a. Humid or dusty environment.
b. High density of salt or sulfur.
c. Environment full of the other chemical gas.
d. High temperature or humidity, or environment in direct sunlight.
2) Maintenance: Please refer to the guaranty card offered.

Special Statement: Our company shall hold no responsibility resulting from using output from this product as direct or indirect evidence. this company reserves the right of changing the product design and contents of instruction if changed the separate notice isn’t given.

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