Perma Pure Baldwin-Series M5A - Manual (Page 10)

PERMA PURE LLC
Model M5A User’s Manual
Doc. #580: Revision: 000
Page 10 of 22
LED Summary
The controls for the M5A cooler are visible through the main door’s window. The M5A can flow
up to 8 LPM of a gas stream, reducing the dew point to 5°C or less. There are several indicators
and a display to provide operational information on the status of the cooler. The temperature
of the active channel can be viewed on the LCD display.
Figure 5 - Front display panel
There are a set (for the active channel) of 3 LED status displays, 1 red and 2 green. These
indicators are arranged vertically on the front of the cooler. See figure 5.
● “Failure” Red LED comes on if the
thermocouple or an electronic controller
component has failed.
● “Slip” Green LED comes on when powered up.
● “Ready” Green LED comes on when the ready
set-point temperature (+10°C) is reached.
NOTE: “Slip” LED is connected to the water slip sensor, which is normally dry on start up. If the
“Slip” Green LED goes out, this indicates water is “slipping” past the heat exchanger. The relay
then shuts off the sample pump so that water is not allowed to reach the analyzers, preventing
damage to the analytical instruments. Steps need to be taken at this time to determine the
cause of the moisture and correct the situation.
The sample pump will begin operating once the green READY indicators are both lit.