Kromschroder FCU 500 - With External STM; With Integrated and External STM

FCU 500, FCU 505 · Edition 02.17 25
Temperature monitoring
4.1.2 With external STM
An external safety temperature monitor (STM) can be
used for high temperature operation. Pre-purge can
be disabled in High temperature mode, see page 86
(Pre-purge during high temperature operation).
FCU 50x..H0
FCU 50x..H1
M
BCU 4xx..D
µC
9
BCU 4xx..D
µC
9
HT
18
6
6
HT
HT
66
STM
4.1.3 With integrated and external STM
The integrated temperature module can also be used in
conjunction with an external safety temperature moni-
tor (STM). The spontaneous ignition temperature can
then be monitored at two different points in the furnace.
FCU 50x..H1
M
BCU 4xx..D
µC
9
BCU 4xx..D
µC
9
HT
18
6
6
HT
HT
66
5-8
STM
STM