Process Control Instruments and Field Devices
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EH Omnigrad TST90 Modular RTD thermometer and insert for high-precision measurement of temperature differences with matched sensor pairs. G1/2" Process Connection. PT100 Temperature Sensor. 316Ti Material Neck.

Part# with Options:        TST90-1U1S31S2E
Price with Options:        Please Email us your request for quote   


Insertion Length
(1) Insertion Length for TST90
Tip Shape
(2) Tip Shape for TST90
RTD Class & Wiring
(3) RTD Class & Wiring for TST90
Head & Cable Entry
(4) Head & Cable Entry for TST90

  Availability 10 Days  ]

Resistance thermometer and insert for thermal energy measurement

High-precision measurement of temperature differences with matched sensor pairs


The Liquiport 2010 CSP44 is a portable sampler designed for the fully automated sampling and defined distribution of liquid media.

  • Universally usable for thermal energy measurements
  • Measuring range: 200 to 600 C (328 to 1 112 F)
  • Sensors in matched pairs within the range:
    0 to 120 C (0.05 K)
    40 to 0 C (0.1 K)
  • Protection class: up to IP68
Your benefits
  • Fast replaceability of the insert
  • High degree of insert compatibility and design as per DIN 43772
  • Fast response time with reduced tip
Measuring principle

These resistance thermometers use a Pt100 temperature sensor according to IEC 60751. The temperature sensor is a temperature-sensitive platinum resistor with a resistance of 100 Ω at 0 C (32 F) and a temperature coefficient α = 0.003851 C -1 .

There are generally two different kinds of platinum resistance thermometers:

Wire wound (WW): Here, a double coil of fine, high-purity platinum wire is located in a ceramic support. This is then sealed top and bottom with a ceramic protective layer. Such resistance thermometers not only facilitate very reproducible measurements but also offer good long-term stability of the resistance/temperature characteristic within temperature ranges up to 600 C (1 112 F). This type of sensor is relatively large in size and it is comparatively sensitive to vibrations.

Thin film platinum resistance thermometers (TF): A very thin, ultrapure platinum layer, approx. 1 μm thick, is vaporized in a vacuum on a ceramic substrate and then structured photolithographically. The platinum conductor paths formed in this way create the measuring resistance. Additional covering and passivation layers are applied and reliably protect the thin platinum layer from contamination and oxidation, even at high temperatures.

The primary advantages of thin film temperature sensors over wire wound versions are their smaller sizes and better vibration resistance. A relatively low principle-based deviation of the resistance/ temperature characteristic from the standard characteristic of IEC 60751 can frequently be observed among TF sensors at high temperatures. As a result, the tight limit values of tolerance category A as per IEC 60751 can only be observed with TF sensors at temperatures up to approx. 300 C (572 F). For this reason, thin-film sensors are generally only used for temperature measurements in ranges below 400 C (932 F).

Measuring Principle Resistance Temperature Detector
Characteristic / Application metric style
modular temperature assembly (paired)
threaded process connection
with neck
incl. thermowell / protection tube (metal)
Terminal head TA30A - E+H, aluminium - cover low - w. or w/o. display
TA30D - E+H, aluminium - cover high
TA20A - aluminium - cover with screws
TA20B - plastics - screw cover
TA20D - aluminium - hinged cover high
TA20R - SS - machined w. screw cover
Thermowell / protection tube welded protection tube
Insert / probe mineral insulated (MI), flexible
Outer diameter protection tube 9,0 mm (0,35'')
Max. immersion length on request up to 4.000,00 mm (157,48'')
Material protection tube/ thermowell 1.4571 (316Ti)
Optional coating Not defined
Process connection male thread:
Tip shape straight
Surface roughness Ra Not defined
Operating temperature range PT 100:
-50 C 200 C
(-58 F ...392 F)
Max. process pressure (static) at 20 C: 50 bar (725 psi)
Accuracy +/- 0.05 K (refering to delta-T)
Response time depending on configuration
t50 = 10 s
t90 = 31 s
Integration head transmitter no
Export Info
Made inItaly

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> GENERAL PURPOSE :    6 Items found.


EH TH12 US style RTD sensor with cable probe designed for use in the process industry or factory automation. Mineral or PTFE insulated probe. Up to 4.877 mm immersion length. NPT Process Connection. CE Mark and CSA GP approved.



EH Easytemp TMR31 compact, fast and precise RTD thermometer. Vibration-proof integrated thin-film sensors. Up to 600 mm immersion length. Threaded Process Connection for general applications. Plug M12, IP66/67/69K. 316L Housing. UL and GL marine approval.



EH Easytemp TMR35 Hygienic compact, fast and precise thermometer for hygienic applications. Up to 600 mm immersion length. Plug M12, IP66/67/IP69K. 316L Housing. UL and GL marine approval.



EH Omnigrad TST343 RTD thermometer for indoor or outdoor ambient temperature measurement. High accuracy. Wall mounting. PT100 Temperature sensor. SIL Certified.



EH Omnigrad TST602 RTD thermometer for temperature measurement of pipe surfaces or container walls. Connection cable, radius or flat mounting block. PT100 Temperature Sensor.



EH Omnigrad M TR13 Modular RTD Thermometer. DN25 to DN50 Process connection. Aluminium, plastics or SS head. Mineral insulated probe. Optional head transmitter. IP68. For non hazardous area. 11mm pipe diameter. Stainless steel + 15mm PTFE pipe material. Straight Tip Shape.