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ZIEHL industrie-elektronik, 74523 Schwäbisch Hall, Germany, +49 791 504-0, info@ziehl.de, www.ziehl.de

Technical Data

Function

Measuring and monitoring range

- 199...+850°C

resolution0.1°Cselectablewithin

range -19.9...99.9 °C

3 relay outputs K1 to K3 with

change-over contacts

Universal power supply AC/DC

24-240 V

Easy setting

Storing of values of MIN- and

MAX- temperature

Alarm counter for 3x99 alarms

withdisplayofsensorandelapsed

time.

Code-lock against manipulation

of settings

The Pt100 thermostat TR250

monitors up to 3 sensors Pt100

(RTD), Pt1000, KTY83 KTY84 or

thermistors (PTC) at the same

time. Different types of sensors,

e.g. Pt 100 and PTC can be mo-

nitored simultaneously.

The unit is especially suitable for

monitoring motors, generators

and transformers.

An other application is the use

as a 2- or 3-step-controller with

additional monitoring of over- or

under-temperature. monitoring

of differences in temperatures

of 2 sensors or temperature

controller for heat pumps.

Pt100-Temperature-Relay Type TR250

3 Sensors Pt 100 (RTD), Pt 1000, PTC or KTY, 3 Limits

NEW: Alarm counter and preset programs for use with PTC thermistors only

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Rated supply voltage Us

Sensor connection

Measuring accuracy

Sensor-current

Connection

Measuring range

Hysteresis

Switching delay on/off

Type of contact

Test conditions

Rated ambient temperature

range

Dimensions (h x w x d)

Protection housing / terminals

Weight

Attachment

AC/DC 24-240 V (AC 20-264 V, DC 20-297 V)

3 x Pt100 (DIN 43 760/IEC 751) (RTD)

3 x Pt1000, KTY83, KTY84

3 x 1...6 PTC (DIN 44080/44081)

< 0,5 % of value ±1 K

< 1 mA

3-wire, 2-wire, line-resistance max. 2 x 50 Ω

-199...+850 °C

-99...+99 °C

0...99 s / 0...999 s

type 2 (see "general technical information")

3 x change-over / alarm

see "general technical information"

-20°C...+65°C

V4: 90 x 70 x 58 [mm], mounting height 55 mm

P 30 / IP 20

app. 200 g

on 35 mm DIN rail or with screws M4

Pt 100-Temperature Relays Type TR

3 Sensor-Inputs:

Pt100/1000, 2- or 3-wire

connection, KTY83, KTY84

Thermistors (PTC) each 1...6

in series

Monitoring of short-circuit

and break

Displays:

3 digit 7-segment-display for

temperature and program-

ming

3LEDsforsensors,foralarms/

relays

display °C or °F selectable,

resolution 0.1 °C

Switching-Functions

3 relays

warmest/coldest sensor switches relay

prgrammable for every relay:

- hysteresis

- autoreset or electronic reclosing lock

- delay-time for switching and switching back

- operating- or closed current-mode

- cyclic check of function

monitoring of difference in temperature

6 preset programs:

motor / generator with 3x Pt 100

transformer with 3x Pt 100

transformer with 2x PTC / 3x PTC

transformer with 2x PTC and 1x Pt 100

3 x 1 alarm per sensor

2018-03-07

TR250

Part number:

T224190

AC/DC 24-240 V