GasDog GD200 Instruction Manual

Note before using
● Before using the instrument, please read the product instruction manual carefully.
● It is strictly forbidden to open the cover with power on on site.
● It is strictly forbidden to replace the sensor with electricity.
● Operations such as installation, commissioning and setting must be carried out by professionals.
● The calibration check should be carried out regularly, and the sensor beyond the effective service period and faulty sensor should be replaced in time.
● It is strictly forbidden to use gas higher than the measuring range to impact the sensor.
● Prevent the instrument from being dropped from a height or subjected to severe vibration.
● It is strictly forbidden to expose the instrument to high-concentration corrosive gas environment for a long time to prevent damage to the sensor.
● It is strictly forbidden to use in high temperature and high humidity environment. If the environment humidity is high, a filter and dehumidification device must be added.
● Users are not allowed to start maintenance or replace parts without authorization.
● Man-made damage is not covered by the warranty.
● It is not allowed to arbitrarily replace the components or structures that affect the explosion-proof performance, so as not to affect the explosion-proof performance.
● Warning: Potential electrostatic charge hazard, avoid ignition hazard caused by electrostatic charge during normal use, maintenance and cleaning of the instrument.
● When used in an explosive environment, the device should not be touched and wiped. If it must be wiped or touched, it should be done in a safe place, and wipe the casing with a
wrung wet cloth. It is strictly forbidden to wipe the casing with a dry cloth!
● For portable products, before entering the dangerous area, the human body should discharge static electricity first, and then carry the instrument into the site.
● The charging must be carried out in a safe place, and use the special charger for this machine. The charging must be turned off. After charging, please insert the USB dust plug
back into the USB charging port.
Keys Operation:
Turn on/off: long press for 3 seconds to power on/off, short press to confirm or save data.
Menu: In the detection mode, press this button to enter the parameter setting mode, and in parameter setting
MENU
mode, press this button to move the cursor.
Plus: In parameter setting mode, short press to select items upward or increase values. Long press for 3
seconds to turn on/off the alarm function quickly.
Minus: In the parameter setting mode, short press to select items downward or decrease value. Long press for
3 seconds to turn on/off the air pump quickly.
Exit: In parameter setting mode, short press to return to the previous menu. Long press to shift switch the gas
ESC
concentration unit quickly.
Note: The long press function only work in detection mode. When you change or reset any data, please remember to
click "ON/OFF" button to confirm and save the settings. Remember to turn on the pump when start the detection. Please
turn off the pump when there is no need to detect, which will be helpful for the service life of the pump
Power On/Off
Put the detector in clean air, and press the "ON/OFF " for three seconds, the detector will be turned on and the pump
will start to work. The screen displays the following interface successively: Brand and Logo, main parameter interface,
initialing countdown. The countdown would be 60 or 120 seconds, which is to make sure that the sensors are fully
activated. After countdown, the device enter normal detection interface. Take the detector out of the detected environment
and wait for the data to get down to zero, then press the "ON/OFF " to turn off the detector.
Zero Calibration
Zero calibration must be done in clean air. Better to do once after alarming happens .
Press "MENU" to enter parameter setting mode, select the "calibrate zero", and press "ON/OFF " to enter the mode.
Observe the value of "real time concentration ". If the reading is not zero and the drifting is too big when the reading is
stable, then it is necessary to conduct zero point calibration.
Press "ON/OFF ", the real-time concentration will go back to zero, and press "ESC" to go back to detection mode, gas concentration values also back to zero.
Note: Zero calibration of oxygen detector, nitrogen detector and carbon dioxide detector (target gases are component of the air) can not be done in the air. Only the target point
calibration (value of target point concentration is the standard concentration values in the clean air) can be done.
Process of Over-range incorrect operation
Users should avoid using gases which exceed the measure range to impact the sensor, because it will affect the lifespan and sensitivity of the sensor, even, "poison" the sensor. If
there is any over-range incorrect operation makes the detector displaying an concentration at a large reading, the remedy is to take the device out of the environment immediately and
put it in clean air for over half an hour, and then observe the reading, if it keeps going down, then wait until the reading back to zero before powering it off, and do the zero point
calibration next lime before using it. If the reading maintained at full scale, user should send the device back to manufacturer or agent for repair or replacing the sensor.
Note
*If detector is used for the gas cylinder detection, considering the high pressure in the cylinder, please use a pressure regulator, and keep it as the below data:
Flow rate: 900mL~1200ml/minute
Pressure: 0.1MPa or 1Bar
*Please put the detector in clean air for about 5 minutes and waiting for the data falling down to normal before turning it off after measurement.
Read before operation (For PID sensors)
If the detector is equipped with a high-resolution PID sensor (means the resolution is 0.001ppm), after the detector is turned on in clean air, it must be placed in clean air for 10-15
minutes before enter to the target environment for detection.
If the detector is equipped with a Normal-resolution PID sensor (means the resolution is 0.01ppm,0.1ppm,1ppm), after the detector is turned on in clean air, it must be placed in
clean air for 5 minutes before enter to the target environment for detection.
The factory default of the detector is the standard VOC gas detection mode, the CF coefficient of this mode is 1, so when the detector is turned on, it is in the standard VOC
detection mode. If you want to detect other VOC gases, let's say N2H4 as an example. Before detecting N2H4, it is necessary to enter the "Gas CF set" and change the coefficient to 3,
and then perform the detection. If you press the ESC key to exit after the modification, then this coefficient is only valid at the current startup. After the detection is completed and the
shutdown is completed, you need to set the above settings again at the next startup; if you press the "
startup.
Customers can detect other VOC gas by correcting the corresponding CF coefficient according to the CF coefficient table of other gases provided by us.
When there are different Voc gases in the environment at the same time, the displayed gas value is the comprehensive concentration value of the mixed gas.
Operation Interface
When the detector is turned on completely, the device will enter the detecting interface. The gas type will be showed on the top left, and the time and battery power will be at the
right. In the middle, there is the real- time concentration. If the detector is with data storage function, there will be the storage status at the top of the concentration: ON or OFF, and the
total storage number. There will be BEEP-ON at the bottom left, which means the alarm is on. The PUMP-ON at the bottom right, which means the pump is working.
Portable Gas Detector
Instruction Manual
Thanks for purchasing our product. Please read the user manual carefully before using.
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" key to save after the modification, the coefficient will still be valid for the next
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⑤
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①-Air Inlet
②-Air Outlet
③-air chamber of sensor
④-LCD
⑤-PLUS
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③
④
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⑧
⑨
⑥-MINUS
⑦-MENU
⑧-ESC
⑨-ON/OFF