Application:
Step 1: prepare a container and remove the approximately 1/10 of the volume of coolant from the radiator. (Fig. 1)
Step 2: disassemble the rubber cone from the detector.
Step 3-1 : install the rubber bulb, cap, upper chamber, lower chamber, brass adaptor, and the available radiator cap one after another. (This way could provide a safer and more accurate test) and then, fill the upper chamber with blue detector liquid till the black line. (Fig. 2)
Step 3-2: Alternative installment for the situation when there is no available radiator cap (Fig. 3). Install the rubber bulb, cap, upper chamber, lower chamber, and rubber cone one after another. Please hold the detector body as operating.
Step 4: Pump the rubber bulb continually to draw the stem from radiator.
         

 
Test Analysis:

• If exhaust gas presents in cooling system, the color of test liquid turns from blue to green or yellow when the steam mixes with CO2 detector liquid in detector (Fig. 4)
• If the detector liquid still in blue during test operating, it means the gasket keeps in good condition.