TR400
12360-0706-05
Page
3 / 12
www.ziehl.de
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Application and short description
The Pt 100 thermostat TR400 is a temperature controller and monitors up to 4 Pt 100 sensors at the same
time. 4 switching points and 4 relays permit almost any combination of switching action. It also can select the
highest temperature of a group of 3 or 4 sensors. The temperatures of two sensors or groups of sensors can
be issued to 2 analog outputs i.e. for remote displays or further evaluation. Programming is very variable and
simple.
Due to the fact that 4 type Pt 100 sensors can be connected, the unit is especially suitable for temperature
monitoring wherever up to 4 different measuring points must be monitored simultaneously:
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motors and generators with simultaneous monitoring of bearings and coolant.
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transformers with additional monitoring of the core temperature also.
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power machines and plants
Approval
UL E377414 Process Control Equipment, Electrical - Component
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Overview of functions
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Measuring and monitoring range -199 ... +800 °C
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4 sensor inputs with 2- or 3-wire connection
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4 relay outputs K1 to K4 with change-over contact
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Sensor Error Relay K7 monitors sensor break or sensor short circuit as well as an
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interruption of the power-supply.
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2 analog outputs, 0/4...20 mA und 0/2...10 V, with individual scaling.
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Universal power supply AC/DC 24-240 V
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Terminal for USB-Stick for up- and downloads of sets of parameters and for firmware- updates
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Connection plan
