Specifications

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Siemens FI 01 · 2015 US Edition

Temperature Measurement

SITRANS TS500

Schematics

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Schematics

Resistance thermometer

SITRANS TSinsert measuring inserts are designed as a four-wire

system for single Pt100 if not mentioned differently. This makes

it possible to implement all of the aforementioned connection

types.

Double Pt100 measuring inserts (for 6 mm OD only) are de-

signed as a three-wire system.

Schematics 1 x Pt100-2W up to 2 x Pt100-4W

Connection diagram for round connector M12 x 1, 4-pole

Thermocouples

Circuit diagram for thermocouple

Where thermocouples are used, the use of head transmitters of-

fers particular advantages: The cold junction is already inte-

grated into the universal transmitter. There is no need for expen-

sive thermo or extension cable. This also removes a number of

possible error sources. The weak millivolt signal of the thermo-

couple is already converted into a stable and temperature-linear

DC or bus signal on site. This drastically reduces the effects of

electromagnetic factors on the measurement result.

If a head transmitter is not installed, the sensor feed line consists

either of the appropriate thermo or extension leads. The thermo

line is made from the thermo material of the relevant thermocou-

ple, while the extension lead uses a cost-effective substitute ma-

terial. The extension cable behaves similar to a thermo line at an

electrical level, within a limited temperature range of up to

200°C.

A wide spectrum of color coding is available for thermocouples

on an international level. This must be taken into account during

the electrical connecting.

2-conductor connection2-conductor connection3-conductor connection3-conductor connection4-conductor connection4-conductor connection

Red Red Black

White

White Yellow

Red Red Black

White

White Yellow

Red

White

2 x Pt1002 x Pt1001 x Pt1001 x Pt100

Pt100

3-wire version

+Type

BlackJ

GreenK

PinkN

BrownE

RedL

RedT

White

Blue

White

2 thermocouples2 thermocouples1 thermocouple1 thermocouple

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