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AT20 Thermocouple
Brand: Ashcroft IncThe Ashcroft AT20 temperature sensor assemblies provide accurate temperature measurements for applications that are located in hazardous environments.
Each temperature sensor assembly consists of a spring loaded temperature sensor, magnesium oxide, MgO, insulated insert, connection head and lag extension.
The assembly may also include an optional terminal block for wiring and/or transmitters.
Thermocouple assemblies are manufactured to either to IEC 60584-2 or ANSI MC 96.1 and RTDs assemblies are manufactured to IEC 60751.
Features- Designed to be used with ISA-ds 49 style thermowells
- Manufactured to 60584-2 or ANSI MC 96.1
Specifications
Brand
Accuracy
- Class 1, Typical J, K, T, E & N: ± 1.5° C (± 2.7° F) or ± 0.0040° C (± 0.0072° F)
- Class 2 Typical J, K, E, N, Class 3 Typical K, E, N: ± 2.5° C (± 4.5° F) or Absolute ± 0.0040° C (0.0072° F), ± 0.0075° C (± 0.0135° F), 0.0150° C (± 0.027° F)
- Standard Typical E: ± 1.7° C (± 3° F) or Absolute ± 0.0050° C (± 0.009° F)
- Standard Typical J, K, N: ± 2.2° C (± 3.96° F) or Absolute 0.0075° C (0.0135° F), ± 0.0040° C (± 0.0072° F)
- Standrad & Class 2 & Class 3 Typical T: ± 1° C (1.8° F) or Absolute ± 0.0075° C (± 0.0135° F), ± 0.0150° C (0.027° F)
Approvals & Certifications
- Calibration
- ATEX: Ex ia IIC T6 Gb (IEC 60079-1), Ex ia IIC T6 Ga (EC 60079-11)
- IECEx: Ex ia IIC T6 Ga (IEC 60079-1), (IEC 60079-11), 60584-2
Diameter
- Stem: 1/8 to 5/16” (3 to 8 mm)
Electrical Connectors
- Ceramic Terminal Block
Environmental Protection
- IP66
- IP67
- IP68
Gland Material
- Cable Gland: Nickel Plating Brass for Unarmored & Armored Cable
- Cable Gland: Polyamide PA, for Unarmored Cable
- Cable: Stainless Steel for Unarmored & Armored Cable
Lagging Extension
- 2 to 39” (0.05 to 1 Meter)
Materials of Construction
- Head: Aluminum Alloy
- Nipple (AISI), Head: 316 Stainless Steel
Mounting
- Head: 1/2” NPT Female
- Head: 3/4” NPT Female
- Head: M20 x 1.5
- Head: Pg 16
Name Plate, Tag Material
- Metal
NPT Connection
- 1/2” NPT Male
Process Connection Material
- AISI 316 Stainless Steel
Sensor, Probe Connection
- Thermocouple: 2-Wire
Sensor, Probe Type
- E Thermocouple -200° to 800° C (-328° to 1,472° F)
- J Thermocouple -40° to 750° C (-40° to 1,382° F)
- K Thermocouple -200° to 1,100° C (-328° to 2,012° F)
- N Thermocouple -200° to 1,100° C (-328° to 2,012° F)
Stem Length
- 2 to 3,937” (0.05 to 100 metres)
Stem Material
- AISI 316 Stainless Steel
- Inconel 600
- Chemical & Petrochemical
- HVAC/R
- Industrial Equipment Manufacture
- Industrial Ovens
- Oil & Gas Applications
- Petrochemical
- Power Generation Equipment
- Reactors
- Towers
