3B Scientific TC – K User Manual

3B SCIENTIFIC® PHYSICS

TC-K thermocouple U11331

Instruction sheet

11/10 Hh

1. Safety instructions

• In order to avoid permanent damage to the

supplied K-type thermocouple, never exceed
the maximum temperature of 1370°C.

2. Scope of delivery

1 Sensor box
1 NiCr-Ni (TC-K) thermocouple sensor, 1.20 m
1 8-pin mini DIN connection cable, 60 cm

3. Description

The TC-K thermocouple is used to measure ex­tremely high/low temperatures, in liquid nitrogen
or oxygen or in a flame, for instance. The thermo­couple is used in conjunction with the 3B NETlog
interface (U11300).

Once connected, the sensor is automatically de­tected by the interface.

TM

The apparatus consists of a sensor box, including a
NiCr-Ni thermocouple sensor (type K), with room
temperature compensation.

The immersion sensors U11854 and U11855 can
likewise be connected to the sensor box.

4. Technical data

Measuring range: -270°C to +1370°C
Sensor type: NiCr-Ni (type K)
Accuracy: 0.2% and 3°C in the range

270°C to 0°C;

0.1% and 2°C in the range

0°C to 1370°C
Resolution: 1°C
Delay: 3 s approx. if temperature

changes from 0°C to 100°C
Sensor cable: Insulated glass-fibre, 1.20 m

1

5. Operation

• Connect the thermocouple sensor to the sensor

box and bring it into contact with the test sur­face.

• Wait for temperature compensation to com-

plete before taking readings.

6. Applications

Measurements involving very low temperatures in
liquified gases

Measuring temperature at points that are ex­tremely difficult to access on account of the ex­periment set-up – this is facilitated by a probe

1.20 m long and a small diameter of only 1.5 mm.
Measurements conducted in the hot region of a

flame without damaging or destroying the tip of
the sensor

7. Sample experiments

• Subsequently, start taking readings. After com-

pleting the experiment, plot the cooling curve.

Fig. 2: Reduction of temperature over time

Experimental demonstration of Newton’s law of
cooling

Fig. 1: Experimental demonstration of Newton’s law of
cooling

The type K immersion sensor U11854 is used in this
experiment.

• Connect the equipment as shown in Fig. 1

above. Switch on the 3B NETlog

TM

interface and
wait for the interface to automatically detect
and identify the sensor.

• Prepare the interface for recording readings

over a time period of 10 hours, i.e. every

0.36 s, a total of 100,000 readings.

• Fill approximately half the vessel with boiling

water (100°C approx.).

3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany • www.3bscientific.com

Subject to technical amendments

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