E8500 Instruction & Operations Manual
version 1.017
Page 17 of 49
The sample conditioning system located inside the analyzer as shown in the following
photo:
The following components are mounted on the conditioning system:
1. Thermoelectric chiller. The sample gas enters this aluminum manifold from
the front panel. The condensed water is removed and collects at the bottom.
The dry sample exits towards the filters. The manifold is cooled by the Peltier
element, powered by electrical pulses of user-settable duty cycle. By cooling
the chiller below ambient temperature, any further condensation in the
analyzer is prevented.
The chiller will maintain the sample at a certain temperature below ambient
temperature to ensure that no further condensation takes place inside the
analyzer. You can control this temperature differential by adjusting the
CHILLER DUTY CYCLE, if necessary, as detailed below.
The duty cycle of the thermoelectric chiller is set at the factory to 75%. It
should not be adjusted unless when being used to measure a stack gas with
very high water content. It can be adjusted as follows:
1) Press the
SETUP
key. The
SETUP MENU
will be displayed.
2) Press the
UP/DOWN
keys until the cursor points to
COOLER DUTY
.
3) Press the
OK
key.
4) Use the
UP/DOWN
keys to set the power duty cycle.
5) Press the
OK
key.
2. Water trap. The condensed water collects inside this water trap.
Thermocouple
Connectors
Line
Filter
Thermo-Electric
Chiller with Fan
Condensate
Water Trap
Condensate
Pump
Gas
Sampling
Pump
Damper
