M&C TechGroup ECP20-2 Operator's manual - Manual (Page 15)

15
Gas sampling and gas conditioning technology 3-1.10-ME
13 STARTING
Before using the equipment for the first time, check that the safety measures specific to the installation
and process are complied with!
The automatic control electronics of the ECP 20 permit automatic start-up of the cooler. The error
diagnostics guarantee full monitoring and reporting of possible sources of error.
The following description is valid for start-up of the gas cooler for an ambient temperature > 8°C.
The following steps should be carried out before initial start-up:

Connect the cooler unit to the mains power supply;

Lead the status contacts for reporting of under- and over-temperature to the measuring station;
N O T E !
The status contacts must be connected to the external sample gas pump or
to a valve in the sample gas line to protect the entire analysis system by
immediately cutting off the gas supply in the event of error messages from
the cooler!
13.1 FUNCTION SEQUENCE AND LED FUNCTION DISPLAY
Three function display LED’s are provided to give a visualisation of the function sequence during start-
up of the cooler. The top LED (red) indicates that the temperature set by the ECP automatic control
electronics has been exceeded or has not been reached. The central green LED shows that the cooler
is operating. The bottom red function display LED gives an alarm if the temperature falls too low.
Switching the cooler on
As soon as there is a mains voltage, the top red LED lights up. This
indicates that the temperature of the cooler is above +8°C.
Normal operation
After around 20 minutes the cooler has been cooled down to a
temperature below +8°C. The top red LED goes out.
The status collector alarm contacts are deactivated and control the
automatic external release for gas measurement.
The central green LED is alternately switched on and off by the ECP
automatic control electronics in a load-dependent cycle. The cooler is
ready to use.
°C >
ON
°C <
red
°C >
ON
°C <
green