wintact WT8812 Compound Gas Monitor Instruction Manual
- September 30, 2024
- wintact
Table of Contents
wintact WT8812 Compound Gas Monitor
FAQs
Q: What should I do if the gas monitor indicates a high alarm?
A: If the monitor triggers a high alarm, evacuate the area immediately and follow safety protocols. Contact the relevant authorities for further assistance.
Q: How often should I calibrate the gas monitor?
A: It is recommended to calibrate the gas monitor regularly as per the manufacturer’s guidelines to ensure accurate readings and reliable performance.
Before use
Check up
Thanks for your purchasing our product, please check the following components after you unpack the box. If there is any missing or wrong page manual, please contact the local dealer.
- Compound Gas Monitor (Contains alligator clips) 1PCS
- Manual 1PCS
- Charger 1PCS
- Data line 1PCS
- Transparent trachea 1PCS
- Cover (with screws) 1PCS
- Packing box 1PCS
When you are ready to use this product, please make sure to read this manual first, and follow the relevant operations in usage so that you can fully understand the company’s products and services while also avoiding unnecessary man-made damage or other accidents.
Introduction
Compound Gas Monitor adopts high-quality gas sensors, which display safety and reliability with accurate measurement and stable performance. It has excellent sensitivity and repeatability, is easy to use and maintain, and meets the requirements of safety monitoring in industrial sites for high reliability of the equipment. The shell is made of high-strength engineering plastics and compounds non-slip rubber, dust, and explosion-proof, with high strength and smooth hand feel. Compound Gas Monitor is widely used in petroleum, chemical, environmental protection, metallurgy, refining, gas transmission and distribution, biochemical medicine, agricultural research, etc.
This instrument conforms with the following procedures and calibration standards:
- Gb3836.1—2010 Explosive Atmospheres Part 1: General Requirements for Equipment.
- GB3836.4—2010 Explosive Atmospheres Part 4: Equipment with Intrinsically Safe “I” Protection.
- GB15322.3—2003 Portable Combustible Gas Detectors Part 3: Portable Combustible Gas Detectors with a Measurement Range of (0~100) %LEL.
- JJG693—2011 Verification Standards for Combustible Gas Detection Alarm.
- JJG 365 — 2008 Verification Procedures for Electrochemical Oxygen Tester
- JJG695-2003 Verification Procedure for Hydrogen Sulfide Gas Detector
- JJG915-2008 Verification Procedures for Carbon Monoxide Detection Alarm
LCD Displays
- A. Maximum value
- B. Minimum value
- C. High alarm icon
- D. Low alarm icon
- E. Oxygen icon
- F. Oxygen unit
- G. CO icon
- H. CO unit
- I. Charge icon
- J. H2S icon
- K. H2S unit
- L. Flammable gas icon
- M. Unit of flammable gas
- N. Delete
- O. Reading of flammable gas
- P. Retrieval
- Q. Record
- R. Battery level reminder symbol
- S. Icon of turn-off
- T. Icon for buzzer turning on/off
- U. Celsius unit
- V. Fahrenheit unit
- W. Temperature reading
- X. Reading hold
Name of parts
- Alligator clips on the back.
- Transparent window for alarm indicator.
- LCD display.
- DC adaptor socket.
- On/off button: Long press on the on/off button to turn the product on/off, short press on the button to activate or deactivate the backlight.
- Left button: Maximum/minimum mode lock
- Right button: Hold indicates is for holding the reading.
- Confirm button: long press on the Set button to enter into or exit set mode. A short press on REC to record data.
- Buzzer alarm hole.
- Gas sensing hole.
- Gas calibration cover.
Functions
- Gas measurement: the sensor preheats while the turning-on countdown. The refresh frequency is 1HZ. Do not charge in the process of measuring the flammable gas or an explosion may occur.
- High/low alarm: 4 default values for high/low alarm with 4 forms of alarm and the alarm voice can be turned off.
- Data record: up to 1000 pieces of data recorded are allowable. The default interval of the data record is 5 seconds which can be set in the inL in the set mode. When the interval is set as 0 seconds the data record function fails. The delete operation will delete all the data recorded.
- Temperature display: to set the unit as ℃ or ℉, the default unit is ℃Automatic turning off: the unit turns off within 30 minutes if there is no further operation. The default turning on is this function.
- Battery volume: if the volume is the last bar or less it is highly recommended to charge the unit. It is forbidden to activate the unit to operate lest the possible measure error or explosion. If the battery is low it may turn off automatically. Charging time: about 4 hours. Discharging time: about 8 hours.
- Calibration of 0 points: it is recommended that the unit should be calibrated at 0 points every month or if there is zero shift occurring to ensure the high accuracy of the measurement (please be sure that the battery volume is above 2 bars while calibration, and put the unit in the air for a while after turning on to ensure that the unit has its body temperature a little bit higher than the environmental temperature. Temperature compensation: the data measured is compensated at the range of -20℃ to 50℃
- MAX/MIN/hold reading: press the button to calculate.
- Software error: the unit’s crash/turn-off indicates the mistake occurs in the process of operation. Press the on/off button to activate the unit if it is forced shut down by software.
Specifications
Compound Gas Monitor range
Measuring item| Unit| Range| Resolution
Combustible gas LEL| %LEL| 0~100| 0.1
Oxygen O2| %VOL| 0~30| 0.1
Hydrogen sulfide H2S| PPM| 0~100| 0.1
Carbon monoxide CO| PPM| 0~1000| 1
1PPM=1μmol/mol
| Accuracy | ≤±5%FS |
|---|---|
| Response time (90%) | Less than 30 seconds |
Indication mode
| LCD displays real-time data and system state, LED, sound, vibration
indication alarm
Storage Conditions| Temperature:-10~55℃; Humidity:＜ 85%RH
Operation Conditions
| Temperature:- 20~50℃;
Humidity:＜ 95%RH non-condensing
Working voltage| DC 3.7V (Lithium battery capacity 1800mAh)
Charging time| 4h
Standby time
| More than 8h on end (slightly change with working state)
Dimensions| 7115349mm
Weight| 218.7g With battery
Operation manual
Main interface
- Long press on/off button (back button) for about 2 seconds. After powering on, the instrument enters into the countdown interface (for the sensor takes about 8 seconds to stabilize). After the countdown is over, the main menu screen will appear, as shown in the right figure.
Key Function
- On/off button : long press on the on/off button to turn the product on/off, short press on the button to activate or deactivate the backlight.
- Left button : Under normal mode short press the MAX/MIN button to shift between the maximum and minimum values as shown in Figure 2 and long press to delete as shown in Figure 3.
- Right button : Short press the data hold button as shown in Figure 4 and long press it for reviewing the historical data as shown in Figure 5.
- Confirm button : Press once the record character flashes and beeps to record the data as shown in Figure 6, and press again to exit record mode.
- Long press this mode to enter into set mode with display ELE: under this mode press the left/right button to shift between the temperature unit ℃ and ℉ as shown in Figure 7.
- Short press to switch to “OFF”: automatic shutdown switch, press the left and right keys to display and hide the automatic shutdown symbol as shown in Figure 8.
- Bu2: under this mode, press the left/right key to turn on/off the alarm sound as shown in Figure 9.
- Cao: under this mode, long press the right key to calibrate the zero point and complete this process until it beeps for several seconds as shown in Figure 10.
- ALA + Oxygen(high/low): under this mode, press the left/right button to switch the high/low oxygen alarm value, long press the right button to set the alarm value, and adjust the value by pressing the left or right button, then press the confirm button to enter into next setting value. After all setting values are set, long press on the right button to complete the setting as shown in Figure 11.
- ALA + flammable gas(high/low): under this mode, press on the left/right button to switch the high/low flammable alarm value, long press on the right button to set the alarm value and adjust the value by pressing the left or right button, then press the confirm button to enter into next setting value. After all setting values are set, long press on the right button to complete the setting as shown in Figure 12. c
- ALA + CO(high/low): under this mode, press on the left/right button to switch the high/low CO alarm value, long press on the right button to set the alarm value and adjust the value by press the left or right button, then press the confirm button to enter
- into next setting value. After all setting values are set, long press on the right button to complete the setting as shown in Figure 13.
- ALA + H2S (high/low): under this mode, press on the left/right button to switch the high/low H2S alarm value, long press on the right button to set the alarm value, and adjust the value by pressing the left or right button, then press the confirm button to enter into next setting value. After all setting values are set, long press on the right button to complete the setting as shown in Figure 14.
- 1nl: under this mode, long press on the right button to set the record interval, adjust the value by press the left or right button, then press the confirm button to enter into next setting value. After all setting values are set, long press on the right button to complete the setting. Long press on the left button is to write in the default ex-factory setting of high/low alarm values and record interval as shown in Figure 15.
Measurement Interface
- In this interface, there are 4 real-time values of 4 items when the value is beyond the setting the value flashes and alarms if the alarm mode is activated.
- If the gas concentration is lower than the low limit set, the instrument is of low alarm state if it is higher than the high limit set, the instrument is of high alarm state.
- If the alarm is activated, it alarms with beeps and reading flashes as well as the indicator.
- There are 4 forms of alarm LED indicator flashing, reading flashing, sound beeps, and vibration. The sound can be activated or deactivated in the set mode.
Record Checking Interface
A long press on the right button is to review the historical data recorded and a press on the left button is to review every piece of data one by one. Long press on the left button to delete all data recorded as shown in the figure below.
Others
Charging function description
When the power is insufficient or the voltage cannot be turned on due to Undervoltage, please charge in time and charge it. During the charging process, the alarm light will flash and the meter will no longer detect the gas concentration and display the number of battery packs dynamically. When the number of battery packs is full and no longer changes dynamically, charging is completed. Then you can unplug the charger. Reactivate the unit, the meter can be used normally.
Warnings and Precautions.
Improper operation or environment may cause accidents.
- The instrument is strictly prohibited from collision, falling from high places, or violent vibration.
- If there is gas of high concentration, the instrument may not work properly.
- Please operate and use strictly in accordance with the instructions, otherwise it may result in inaccurate test results or damage to the instrument.
- Do not store the instrument in the following environments:
- a. Places that may have water or heavy dust.
- b. The instrument must not be stored and used in environments that contain corrosive gases (such as salt or sulfur in high concentrations, etc.).
- c. Air with other gases or chemicals.
- d. Places of high temperature, high humidity, or direct sunlight, including environments of too high and low temperatures, high humidity, electromagnetic fields, and strong sunlight.
- Cleaning of the instrument’s surface:
- a. The window of the sensor must be kept clean. If it is dirty, the measurement will be inaccurate.
- b. Please wipe it gently with a clean, soft cloth dampened with water (do not use alcohol, diluent, etc. to clean the case, especially for the LCD window.).
- In order to ensure accuracy, the instrument should be calibrated regularly, and the period can not exceed one year.
- If the instrument breaks down, please contact our professional personnel to repair it. Other people shall not change components and wiring.
Warning: prohibit charging or disassembling batteries in an explosive environment. TIPS: This device is equipped with a rechargeable battery. If you receive the product and cannot start up,please connect with the adapter for charging before use. Special Statement: Our company shall hold no responsibility resulting from using output from this product as a piece of direct or indirect evidence. This company reserves the right to change the product design and contents of instruction if changed separate, notice isn’t given.
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