Images are representations only.
Description
Thermatel® TD1 switch can easily be adjusted to detect flow (gases and liquids), level or liquid-liquid interface.
The TD1 is a 24 V DC line powered unit with integral electronics and a built-in DPDT relay.
With continuous diagnostics, automatic temperature compensation, narrow hysteresis and fast response time, the TD1 brings you the latest in thermal dispersion technology.
Features- Easy field calibration – pre-calibration from factory at request.
- Variable flow or Flow/No flow detection of gases and liquids.
- Excellent low flow sensitivity.
- Automatic temperature compensation for repeatable alarm under varying process temperatures.
- Continuous diagnostics detect sensor fault.
- Continuous monitoring of flow rate versus setpoint via
- LED (TD2).
- mA output provides repeatable indication of flow rate and fault detection (TD2).
- Flow can be measured over test points (TD2).
- Optional retractable fitting for dismantling under process conditions.
- Process conditions up to +450 °C (+850 °F) and 414 bar (6000 psi).
- Integral or remote electronics up to 150 m (500 ft).
- Unique spherical tip design option ideal for liquids or high viscosity applications.
- Suited for SIL1 and SIL2 loops (full FMEDA report available).
Inventory
Displaying prices & availability for Ohio, United States in USD. Change location.
Models matching criteria: 4
- Agency Approvals - ATEX/IECEx Ex d + ib, Zone 0 - Flameproof
- Conduit Connection - Aluminum A356 - M20 (Dual Entry)
Out of Stock
- Agency Approvals - ATEX/IECEx Ex d + ib, Zone 0 - Flameproof
- Conduit Connection - Aluminum A356 - 3/4" NPT (Dual Entry)
Out of Stock
- Agency Approvals - General-Purpose, FM/CSA Explosion-Proof Approved
- Conduit Connection - Aluminum A356 - M20 (Dual Entry)
Out of Stock
- Agency Approvals - General-Purpose, FM/CSA Explosion-Proof Approved
- Conduit Connection - Aluminum A356 - 3/4" NPT (Dual Entry)
Out of Stock
Configure
Specifications
Specifications
Brand
Approvals & Certifications
- ATEX
- CCOE
- CE
- CSA Explosion-proof
- FM - Flameproof. Class I, Div. 1, Groups B, C, D, Temperature Codes: T2D (Ta=75° C), T3 (Ta=65° C), Class I, Zone 1, AEx d IIB + H₂, Typical 4/IP55
- IEC
- INMETRO
- RosTech, FSTS
Conduit Connection
- 1/2” NPT
- 3/4” NPT
- M20
Cover - for Local Enclosure
- Blind Cover - Flameproof
- Glass Lens Cover - Flameproof
Electronics - Standard Features
- Continuous Diagnostics Detect Sensor Fault
- Detects Min. Flow or Presence / Absence of Flow
- Easy / Fast Calibration
- Excellent Low Flow Sensitivity
- Hygienic Design Available
- Non-Linear mA Output Signal Can be used for Trending, Diagnostics & Repeatable Flow/level Indication
- Temperature Compensation
Enclosure, Body Material
- 304 Stainless Steel
- 316 Stainless Steel
- Cast Aluminum A356 Containing less than 0.2 % Copper
Flange Material
- 316 Stainless Steel
- 316L Stainless Steel
- Hastelloy C
- Monel
Input Power
- 19.2-28.8 Vdc 50/60 Hz
- Power Consumption: 3.5 W at 24 Vdc
- Power Consumption: 4.5 W at 30 Vdc
Insertion 'U' Length
- Custom 'U' Lengths: 2” to 130” (5 cm to 330 cm) in 1” (2.5 cm) Increments
Operating Pressure - Sensor
- Maximum
Operating Temperature - Electronics
- -40° to 70° C (-40° to 158° F)
Operating Temperature - Sensor
- -73° to 454° C (-100° to 850° F)
- Extended Range: -73° to 454° C (-100° to 850° F)
Options
- LED Indication of Flow/Level
- Remote
Principle of Operation
- Thermal, Calorimetric
Response Time
- 1 to 10 seconds (Typical - Dependant Upon Sensor Type, Application, & Set Point Adjustment)
Sensor, Probe Style
- Insertion
Switch Point Range
- Air: 0.1 to 500 FPS (0.03 to 150 mps)
- Water: 0.01 to 5.0 FPS (0.003 to 1.5 mps) (spherical Tip & Twin Tip Sensors)
Switch Type
- DPDT Switch: 8 Amp at 120 Vac, 250 Vac / 8 Amp at 30 Vdc, 0.5 Amp at 125 Vdc / Hermetically Sealed 1 Amp at 28 Vdc, 0.5 Amp at 125 Vdc
Wetted Materials
- 316, 316L Stainless Steel
- Hastelloy C
- Monel
