Flowserve TRG 5-6x - Manual (Page 5)

5
Explanatory Notes
Scope of supply
TRG 5-63, TRG 5-64, TRG 5-65, TRG 5-66, TRG 5-67, TRG 5-68
1 Temperature sensor
1 Installation manual
System description
The TRG 5-6x are temperature sensors with integrated platinum resistance thermometers Pt 100 to
EN 60751. The temperatures sensed by the temperature sensor are converted by the temperature trans-
mitter TRV 5-40 and provided as a data telegram on the CAN bus.
The CANopen protocol is used for the data transfer via CAN bus.
The temperature sensor can be used as a measuring sensor for
■ a safety temperature control monitor/limiter in conjunction with temperature transmitter TRV 5-40 and
the switching controller NRS 1-40.1 and
■ as sensor for a temperature limiter/controller in conjunction with temperature transmitter TRV 5-40 and
the control unit TRS 5-40.
The equipment combinations can be used as controls, monitors or limiters in steam boilers and (pressu-
rised) hot water installations to TRD and EN 12952 and EN 12953.
Function
The temperature sensors TRG 5-63, TRG 5-65, TRG 5-66 and TRG 5-67 feature one integrated platinum
resistance thermometer Pt 100 each.
The temperature sensors TRG 5-64 and TRG 5-68 are equipped with two platinum resistance thermome-
ters Pt 100 for the connection of additional indicating equipment.
The resistance value of these thermometers changes as a defined function of the temperature.
The resistance thermometer is supplied with a constant current by the temperature transmitter and the
voltage generated by the changing of the resistance value is measured and processed in the transmitter.