Description
TRG 5-53, TRG 5-54, TRG 5-55 and TRG 5-57 are temperature
sensors according to DIN EN 14597.
The temperature feeler Pt 100 integrated in the protection
tube has a temperature-specific resistance. The temperature
switches TRS 5-6 or TRS 5-8 measure the resistance and
give an alarm according to the limit settings.
Application in steam and (pressurised) hot-water installations
to TRD 604 and all kinds of heat-generating units.
Function
The temperature sensors TRG 5-53, TRG 5-54, TRG 5-55
and TRG 5-57 have a standardised platinum resistance ther
-
mometer Pt 100 to IEC 751. A temperature sensor together
with a temperature switch type TRS 5-6 or TRS 5-8 form a
temperature monitoring system. A current source supplies the
resistance thermometer Pt 100 via an adjusting resistor with
a constant current. The desired switch-off temperatures can
be set via the eight-pole code switches of the temperature
switches. To ensure fail-safe alarms if the temperature limit
is exceeded the equipment features contact relays of the
normally closed type that will signal alarm condition in the
event of a mains failure.