Moisture Indicator - In-Line Mount

Moisture Indicator:

The Moisture indicator should remain BLUE at all time. If the color is not blue, refer to the list below for possible meaning:

- WHITE: the dew point is above the allowable -40°C. If a disruption occurred recently in the air dryer operation this may be normal, continue to operate as is. The crystals will turn blue again in the next five hours. If not, check air dryer operation and service as necessary, replace the moisture indicator, or both.

- BLACK: the blue crystals are permanently damaged by exposure to Ozone. Check and restore the room ventilation, replace the indicator.

- YELLOW: the blue crystals are permanently damaged by an exposure to oil vapors. In this case also the air-drying desiccant is damaged and must be replaced.

- PINK/RED: the blue crystals are permanently damaged by an exposure to acid vapors in the air. The source of the problem must be identified and removed. Examples: A solid fuel burner nearby, overcharged battery.