Retsch TG 200 - Manual (Page 15)

2/25/2013

Retsch GmbH
15
0002
Triggering the bimetallic element switch in the
heater
The heater is fitted with a bimetallic element switch.
If a fault occurs this switches off the heater at 160°C/320°F +/-
6%. The fan power is immediately set to maximum and the heater
switched off.
After a cooling cycle has taken place the TG200 must be restarted.
2 5 8 16

Display 2 shows fault code F2

Temperature is reduced, display 5

Fan power is set to max. 99, display 8

Red LED over STOP key 16 lights up
The cooling cycle is started.
The bimetallic element switch is triggered when a temperature >
150°C/302°F has been reached. This can result from too low fan
power and at the same time too high stagnation pressure caused by
the material to be dried. Before restarting the machine the
temperature should be reduced by 5 – 10°C.
Otherwise the heater may be damaged.
Setting the air flow
12 13 14
Reducing:

Key 12 reduces the fan power down to the minimum power step,
10 is indicated in display 13.

Keep key 12 pressed; after 5 sec. quicker adjustment is possible
Increasing:

Key 14 increases the fan power up to the maximum power step,
99 is indicated in display 13.

Keep key 14 pressed; after 5 sec. quicker adjustment is possible
It is not possible for the value to drop below 10 or to exceed 99.
Interval – continuous operation
10 11
At the time of switching on the TG200 interval operation is
switched off. Not during the performance possibly
. When Interval is
switched on the air flow can no longer be changed.
Switching on interval:

Press key 10

LED over key 10 lights up

Pause for 10 sec with fan switched off; heater is switched off

Operation for 10 sec with reselected fan power; heater is
switched on again
Switching off interval:

Press key 11
 LED over key11 lights up