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TH Series Temperature Sensor

RELIABLE AND SENSITIVE

ROBUST CONSTRUCTION

VARIOUS CONFIGURATIONS AVAILABLE

Temperature sensor series TH provides reliable means to monitor temperature in rock, concrete, soil, or ground fill

Description

Temperature sensors are available in three different models: TH-T, TH-PT100, and TH-TC.

Model TH-T uses a 3 kΩ chip thermistor. The thermistor is encapsulated and sealed into a stainless steel or PVC cylindrical housing. Two lead wires are connected to the thermistor for readout. The TH-T incorporates the standard thermistor used in most vibrating wire instruments.

Model TH-PT100 consists of a platinum resistor highly sensible to temperature. Platinum is well suited because of its stability at high temperature. A four- or three-wire bridge mounting gives a good measurement resolution with a portable bridge measurement device or a data acquisition system. The sensor is enclosed inside a stainless steel housing, which allows grouting while offering resistance to strain.

Model TH-TC is a thermocouple consisting of a twin solid thermocouple wire AWG 24, covered by a 0.38-mm thick PVC jacket and encapsulated in a PVC protective housing. It is usually connected with an extension wire, which will be connected to a readout unit. The thermocouple and extension wires are copper-constantan alloy (type T).

Specifications

MODEL

TH-T

TH-PT100 (Class A)

TH-TC TYPE T

Range*

−50 to +150°C

−200 to 600°C

−60 to +400°C

Accuracy

±0.5% F.S.

±0.15°C at 0°C 

±0.1% F.S.

Resolution

0.1°C

Depends on readout

0.1°C

Sensor

3 kΩ thermistor

100 Ω resistor 

Thermocouple

Housing

PVC or stainless steel

Stainless steel

PVC

 

16 mm OD

16 mm OD

16 mm OD

 

51 mm long

51 mm long

51 mm long

Cable

IRC-41A or IRC-295

IRC-41A

Duplex AWG 20 extension wire, copper-constantan, PVC jacket

Sensibility

<0.1% F.S.

* Temperature range of cable must be considered (e.g. −20 to +80°C for the IRC)
 
Ordering Info

Please specify:

  • Model of temperature sensor
  • Cable length and type
 

Optional accessories:

  • Armored cable
  • Readout instruments (please contact us)
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