Ex d Head with

Nipple-Union-

Nipple extension

DESCRIPTION

Ashcroft® S50 temperature sensor assemblies

provide accurate temperature measurements.

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 and/or transmitters.

Thermocouple assemblies are manufactured

to IEC 60584-2 or ANSI MC 96.1 and RTDs

assemblies are manufactured to IEC 60751.

TYPICAL USES

Industrial process, petrochemical, oil and

gas applications

Process temperature measurements for

oil, gas and power generation systems

Process control, monitoring asset protection

General purpose or hazardous area

Available with DIN mounting plate or spring

loaded fitting designs

SPECIFICATIONS

Ashcroft Series:

S50

Sheath Diameter:

1

⁄8˝, 3⁄16˝, ¼˝, 3 mm, 4.5 mm, 6 mm, 8 mm

Stem Length:

Minimum: 50 mm/2 in

Maximum: 3 m/120 in

Sensor Type &

Measuring Range

RTDs Platinum 385

Pt 100 -200 to 600 °C

Pt 1000 -40 to 600 °C

Thermocouples

Type J -40 to 750 °C

Type E -200 to 800 °C

Type K -200 to 1000 °C

Type N -200 to 1000 °C

Type T -250 to 350 °C

Wiring Configuration:

RTDs - single or dual

2 Wire

3 Wire

4 Wire

Thermocouples - single or dual

Accuracy Class

RTDs - (IEC 60751)

Class A: ±(0.15 + 0.0020 * |t|(1))

Class B: ±(0.30 + 0.0050 * |t|(1))

1/2 Class B: ±(0.15 + 0.0025 * |t|(1))

1/3 Class B: ±(0.10 + 0.0017 * |t|(1))

KEY BENEFITS

• Industrial process applications.

•Designs for hazardous locations.

Thermocouples (IEC 60584-2)

Type J

Type K

Type E

Type N

Type T

Class 1

±1.5 °C or

±0.0040*|t|(1)

±1.5 °C or

±0.0040*|t|(1)

±1.5 °C or

±0.0040*|t|(1)

±1.5 °C or

±0.0040*|t|(1)

±0.5 °C or

±0.0040*|t|(1)

Class 2

±2.5 °C or

±0.0075*|t|(1)

±2.5 °C or

±0.0075*|t|(1)

±2.5 °C or

±0.0075*|t|(1)

±2.5 °C or

±0.0040*|t|(1)

±1.0 °C or

±0.0075*|t|(1)

Class 3

N/A

±2.5 °C or

±0.0040*|t|(1)

±2.5 °C or

±0.0150*|t|(1)

±2.5 °C or

±0.0150*|t|(1)

±1.0 °C or

±0.0150*|t|(1)

(1) Absolute temperature in °C

Thermocouples (ANSI MC 96.1)

Type J

Type K

Type E

Type N

Type T

Standard

±2.2 °C or

±0.0075*|t|(1)

±2.2 °C or

±0.0075*|t|(1)

±1.7 °C or

±0.0050*|t|(1)

±2.2 °C or

±0.0040*|t|(1)

±1.0 °C or

±0.0075*|t|(1)

Special

±1.1 °C or

±0.0040*|t|(1)

±1.1 °C or

±0.0040*|t|(1)

±1.0 °C or

±0.0075*|t|(1)

±1.1 °C or

±0.0040*|t|(1)

±0.5 °C or

±0.0040*|t|(1)

SSCA Head

of 7

1

Data Sheet

S50 Industrial RTDs & Thermocouples

with NPT Connections

Data Sheet

All specifications are subject to change without notice. All sales subject to standard terms and conditions.

Ashcroft®, Trust the Shield® are trademarks of Ashcroft Inc. The following non-Ashcroft trademarks are the property

of their respective owners: Inconel®. For more information, see Ashcroft Brands & Trademarks

©2023 Ashcroft Inc. S50_RTD_ds_RevD_04-05-23

ashcroft.com

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