2009 by ELTRA GmbH Germany – July 2009 – Service Manual Thermostep
Page 12
c.)
After finishing the adjustment lock the pressure controller back in to avoid an
accidentially alteration of the pressure.
The flow should be controlled simultaneously and is be adjustable by using the inlet needle
valve at the frontside of the analyser. Please note that variation of the flow implicates a
variation of the gaspressure. The adjustment of the flow should be secured by the counter nut
at the choke to avoid accidential alteration of the flow rate.
1.10 Purging ventiles
The exits of the purging pipes are at the upper heating element and are needed to feed in the
particular gas in the furnace during analyis. The gas discharging to the furnace is controlled
by the software. To check the function of the purging switch on the gas flow manually (see
Operator manual: Form -
Controller
) and check on the basis of the sound and using a suitable
medium if the gas flows through both exits at the furnace.
Fig. 1.7: FI – Purging port at the upper heating element
1.11 Internal blower
The internal blower reduces the cooling down phase after finishing the analysis and is located
at the front inside the furnace. After finishing the analysis it is lifted up automatically at a
temperature of 300° C and closed into its standby position again after reaching room
temperature and finishing cooling down time (see Operation manual: Form -
Configuration
).
The lifting up and down should occur in a moderate speed. Please note that the cover probably
will be closed after finishing cooling down phase (depending on setting at Form –
Configuration
). The closing speed should be fast enough to avoid collision with the cover.
WARNING
:
The internal blower start automatically after lifting up!
RISK OF INJURY!!!
