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DESCRIPTION
Thermatel® Model TD1 and TD2 Thermal Dispersion flow/level/interface switches provide continuous diagnostics with fault indication, temperature compensation, narrow hysteresis and fast response time.
TD1 is a basic switch with 24 VDC power and an 8-amp DPDT relay. The TD2 adds LED indication through a glass window, ability to electrically measure the set point, mA output for diagnostics and trending, optional hermetically sealed relay, plus time delay. A universal AC power supply simplifies installation.
THERMATEL probes are available in 316 Stainless Steel, Hastelloy® C, or Monel® with all welded construction.
Features
- Temperature compensated to provide repeatable alarm under varying process temperatures
- Continuous diagnostics detect sensor fault
- Non-linear mA output signal can be used for trending, diagnostics and repeatable flow/level indication (TD2)
- Detects minimum flow or presence/absence of flow
- Easy/fast calibration
- Excellent low flow sensitivity
- Optional hot tap available (see bulletin 41-103)
- NACE construction available
- Process temperatures from -100 to +400 °F (-73 to +204 °C)—High temp. version to +850 °F (+454 °C)
TECH DATA
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