Thermatel® TD1/TD2 Thermal dispersion switches

Magnetrol International

Thermal dispersion switches Thermatel® are in two different versions.

Thermatel® TD1 with DPDT relay output without possibility to adjust relay response time.

Thermatel® TD2 with DPDT relay output available with hermetic seal construction also, with possibility to adjust relay response time and with analog output for flow trending and error signaling.

Approvals & certificates

PED
CE
ATEX Ex d
ATEX Ex i
EAC Ex
FM
IECEx
KOSHA
INMETRO

Thermatel ® TD1/TD2 switches for level and medium flow utilize thermal dispersion technology.

Probe consist of two pins with built in RTDs. One pin is heated by built in heater in order to maintain constant temperature difference with the second one pin. Presence of liquid or increase in flow causes temperature dissipation and power increase of heater. This change activates relay output of the switch.

Thermatel® TD1/TD2 switches may be used in applications for example dry run pump protection, liquid/gas flow detection, maintain of minimum liquid/gas flow rate, seal leakage detection, max/min liquid level detection or interface detection.

Advantages
- Probe insertion length: up to 3,3 m
- Medium temperature: -70 to 450 °C
- Maximum pressure: 413 bar
- Non-linear analog output for flow rate trending and diagnostics
- Easy field calibration
- Excellent low flow sensitivity
- Automatic temperature compensation for repeatable alarm under varying process temperatures
- Continuous diagnostics detect sensor fault
- Optional retractable fitting for dismantling under process conditions
- LED switch status indication
- Integral or remote electronics
- Unique spherical tip design option ideal for liquids or high viscosity applications
- Variable level, interface level, flow
- Output signal VDC switch, VAC switch
- Repeatablity 1%
- ATEX Ex i, Ex d
- Process connection 1 BSPP male, 1/2 NPT male, 3/4 NPT male, 1 NPT male, 1/4 NPT female, 1/2 NPT female, other
- Sensor / wetted parts material 316/316L, Hastelloy, Monel
- Power supply external 24 VDC, external 230 VAC
- Electrical connection M20x1.5 female, 3/4 NPT female
- Housing aluminum, stainless steel
- Ingress protection rating IP66
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Pressure

Liquid level

Liquid & gas flow

Valves

Solids level

Solids flow

Moisture

Dust monitors

Temperature

Thermography

Gas detection

Control

Thermatel® TD1/TD2 Thermal dispersion switches

Approvals & certificates

Magnetrol Thermatel TD1-TD2 Datasheet

Magnetrol Thermatel TD1-TD2 User manual

Magnetrol Thermatel TD1-TD2 Certificate ATEX Ex d ib

Magnetrol Thermatel TD1-TD2 Certificate IECEx Ex d ib

Magnetrol Thermatel TD1-TD2 FMEDA Report SIL

Magnetrol Product Line Quick Reference

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Contact data

MERCON Sp. z o.o.