wintact WT8827 Freon Gas Detector Instruction Manual

MODEL: WT8827
Freon Gas Detector
Instruction manual

Version: WT8827-EN-00

Introduction

This product one-hand-operated can detect the leaked gas indoors with its slim gooseneck sensor, and alarm if gas leaks. This product is widely applied in the fields of household appliances, temperature control systems, withdrawal of cold media, high voltage circuit breakers, halon extinguishers, petrochemical industries, sewage disposal, and medical pharmaceutical testing.

Functions

• High sensitivity; Quick response.
• Indicating the leakage via an alarming bulb.
• High sensitivity sensor is able to detect slight gas leakage.
• 30cm long gooseneck.
• Quickly find the resource of leakage.
• Probe reset/Detectability control

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 a leakage accident happening:

• Cut off all the potential gas resources.
• Keep the rescuing area ventilated and no potential combustible gas exists.
• 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 measurements.
: 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 sensors.
: The sensor aperture must be kept clean, or impurities may cause inaccurate measurements.
: When replacing the battery, 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, GB3836.1-2010
GB3836.4-2010, GB4208

International safety Knowledge

This operation must refer to the instruction. Please be careful.
Complying with eu standard

**Name of parts

**

Figer1
Explosion-proof sign: Ex ib IIB T3 Gb

1. Probe cap and a built-in sensor.
2. Gooseneck
3. Countersink
4. Alarm indication
5. Power indication (after startup)
6. Open/shut down key.
7. Sensitivity adjustment knob
8. Battery door

Operation manual

1. Operation instruction:
   Press the “on/off” button to start the machine in a clean environment. When the power is sufficient, the green light will light up and preheat the instrument for about 1 minute and adjust to zero automatically. If the ticking alarm continues to sound, it is because the sensitivity was not set to the minimum before use.

2. Beep rate(sensitivity) adjustment: Before operating this product, a quick functional test must be performed. Adjust the ticking rate to a non-alarm level and the instrument will detect Freon gas after warm-up.When the probe is exposed to a known gas source such as benzene or flowing of refrigerant, the “ticking” sound begins to intensify when the sensor at the top of the probe detects gas and the instrument will set off the alarm, with a warning light (red light) flashing. Continuous ticking will arise due to gas concentration if the operating environment needs to be quiet, or the environment is noisy, If the ready led or the battery is too low please replace the battery immediately. A low battery may impact the safety and reliability of the product. The beep sounds quicker and quicker if the sensor is approaching the gas resource closer and closer. And you can control the sound velocity by adjusting the sensitivity knob. To enhance the sound velocity of “tick”, rotate the knob clockwise with the thumb and slightly rotate counterclockwise to weaken the sound of “tick”.  In a clean environment, the typical sound velocity is four to eight times per second. Keep the probe close to the area where a leak is suspected until the “tick” begins to intensify. To isolate the source of the leak, turn the probe slightly counterclockwise to weaken the “tick”.

3. Replacing battery(Note: Please replace batteries in safe environments):

If the instrument has the following status, Please replace the 1.5V AAA alkaline batteries:

• The green power indicator is off.
• No other LED is on as turning on the unit.

Follow the steps below to replace the battery:

1. Put the unit back upside
2. Take off the protective cover of the unit to open the battery door.
3. Take out the battery
4. Insert 3 fresh batteries.
5. Please do not install batteries backward.

4. Replacing sensor:  The sensor of the unit can provide reliable service for years, it must be replaced only if the sensor is immersed in liquid or Long- term storage at high temperatures and acid environment.

1. Turn off the unit.
2. Take out the sensor cap.
3. Take out the old sensor.
4. Replace them with a new sensor and cap.
5. Restart the instrument and carry out ‘the operation check step.

Others

1. Gas detecting:
   The instrument is an advanced detection apparatus that can be used to test the leakage of various refrigerants.

2. Combustible gas: The following list only shows partial gases can be detectable.
   Freon ,R12,R22,R502,benzene.

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 time less the leakage of battery damage and erodes the battery contact metal.
   » Case cleaning: Use only the fresh water to clean the case of 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.
   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.We hold no responsibility for the product due to the following reason: Unauthorized disassembly of the product, improper transportation after purchasing and wrong storage, damage due to abuse, failure to provide purchasing proof or unauthorized amendment on the purchasing invoice/guaranty card.

Technical parameters

state)
Low battery indication| 3±0.2V
Operating environment temperature:| 0-50,C(2)
Power| 3*1.5V AAA Alkaline battery
Working current| About 150mA
Product size| 68.85•29•132.98mm
Weight| 165.5g

1. J.LEL stands of 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.
2. For precise reading, the product can only be operated in the local environment as follows. temperature: 0-50’C (32-120°F ) Relative Humidity:10-90% RH(non-condensing)
   AS

Specific Declarations:

•  Old battery dealing must comply with local laws and regulations.
• Our company shall hold no any responsibility resulting from using. output from this product as a piece of direct or indirect evidence.
• We reserve the right to modify product design and specifications without notice.

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