Thermometers
Thermowells
Switches
RTDs
Thermocouples
MultiPoint
OEM
Thermometers
Explore Ashcroft® thermometers for your specific application.
Ashcroft® bimetal thermometers and gas actuated thermometers provide easy-to-read temperature measurement on a dial indicator. Both operate without the use of mercury. Bimetal thermometers are actuated by a helical bimetal while gas-actuated thermometers use expanding or contracting gas in a closed bulb and capillary system. Bimetal stems and capillaries along with associated thermowells are available in a wide selection of lengths to fit nearly any application.
EI Bimetal
EL Bimetal
Model E Bimetal Thermometer
The Ashcroft® Model E bimetallic thermometer is a high-quality process temperature instrument that delivers exceptional reliability. An ideal choice for accurate temperature readings. Offers dampening options to counter vibration.
Specifications
Accuracy
±1% of span ASME B40.200 (B40.3 Grade A)
Stem Length
Dry: 2 ½ ̋ to 60 ̋
Liquid Filled: 2 ½ ̋ to 24″
Size
2˝, 3˝, 5˝
Process Connection
Plain, Pointed Stem, 1⁄2 NPT, 1⁄2 NPT Union and 1⁄2 NPT Adjustable Union
Stem Diameter
0.250 ̋
0.375″
Case & Stem
304 Stainless Steel
316 Stainless Steel
Process Connection Location
3˝, 5˝: Everyangle™, Lower, Center Back
2 ̋: Centerback
Enclosure Ratings
NEMA 4X / IP66
Hermetically sealed
Window
Glass, Safety Glass or Acrylic
Model C Bimetal Thermometer
The Ashcroft® C bimetallic thermometer is a high quality tamperproof temperature instrument that delivers exceptional reliability. An ideal choice for accurate temperature readings.
Specifications
Accuracy
±1% of span ASME B40.200 (B40.3 Grade A)
Stem Length
2 1/2″ to 60″
Dial Sizes
2˝, 3˝, 5˝
Stem Diameter
0.250 ̋
0.375″
Case & Stem
304 Stainless Steel
Process Connection Location
3˝, 5˝: Lower, Center Back
2 ̋: Centerback
Enclosure Ratings
NEMA 4X / IP66
Hermetically sealed
Window
Glass, Safety Glass or Acrylic
Process Connection
Plain, Pointed Stem, 1⁄4 NPT, 1⁄2 NPT
C 600A 01
C 600A 02
C 600A 03
C-600A Remote Mount Duratemp Thermometer
The Ashcroft® c-600 A Duratemp® gas actuated thermometer is a remote or panel mounted process instrument providing maximum durability while being highly resistant to shock and vibration. This thermometer’s remote mount capabilities allows operators to monitor process temperatures while staying away from unsafe applications. Usually recommended with a thermowell, the Duratemp® is ideal for installations subject to vibration, hazardous process media, and extreme temperatures.
C 600A 04
C 600H 45
Specifications
Accuracy
±1.00% of span
Size
4 1/2″ — 6″ — 8 1/2″
Case Material
Aluminum
Case/Ring Style
Bayonet Ring
Hinged Ring
Snap Ring
Threaded Ring
Bulb Size
3 ̋ Long x 3⁄8 ̋ O.D.
Line Length
5″ to 80″ in standard increments
Armor
AISI 302 Spring armor
Stainless Steel interlock
PVC coated Stainless Steel
No armor
Mounting & Connection
Surface mount with lower connection or flush with rear connection
Window
Glass, Safety Glass or Acrylic
C-600B Direct Mount Duratemp Thermometer
The Ashcroft® C-600 B Duratemp® gas actuated thermometer is a direct-mount process instrument providing maximum durability while being highly resistant to shock and vibration. Its high and low temperature range capability exceeds that of most bimetallic thermometers, making it ideal for use on many extreme applications. Usually used with a thermowell, the Duratemp® is ideal for installations subject to vibration, hazardous process media, and extreme temperatures.
Specifications
Accuracy
±1.00% of span
Size
4 1/2″
Process Connection
½ NPT Male
Mounting & Connection
Direct Mount
Stem Length
6˝, 9˝, 12˝, 15˝, 18˝, 24˝, 30˝ or 36˝
Stem Material
316L stainless steel
Case Material
Stainless Steel
Window
Glass, Safety Glass or Acrylic
Case/Ring Style
Bayonet Ring
Bulb Size
3 ̋ Long x 3⁄8 ̋ O.D.
Model K Dual Sensor Thermometer
The Ashcroft® Model K Dual Sensor thermometer provides a high quality product with reliable performance from the combination of a Bimetal and a K Thermocouple. Two independent sensors providing accurate temperature readings with dampening options when vibration is present. An ideal choice for reducing installation costs and providing an added space reduction benefit.
Specifications
Accuracy
Bimetal Accuracy: EN 13190 Class 1
K Thermocouple : Class 1 ANSI MC 96.1 & IEC 60584-2/EN 60584-2
Stem Length
90mm to 2,000mm
Dial Sizes
80, 100, 130, 150 mm
Process Connection
1⁄2 NPT Fixed
Stem Diameter
6, 6.35, 8, 9 mm
Case & Stem
304 Stainless Steel
316 Stainless Steel
Process Connection Location
Centerback
Window
Glass, Safety Glass or Acrylic
S5500 Gas Actuated Thermometer
The Ashcroft® S5500 gas actuated thermometer is a direct or remote mounted instrument providing performance while being highly resistant to shock and vibration. This product is extremely versatile for use on many applications. Usually used with a thermowell, the S5500 is ideal for applications with vibration and very high or low temperature.
Specifications
Accuracy
±1.00% of span
±0.5% of span (OPT.)
Size
100 mm, 160 mm
Case Material
Stainless Steel
Case/Ring Style
Bayonet Ring
Bulb/Stem Length
50 mm to 1,000 mm
Armor
stainless steel
Mounting & Connection
Stem, surface or flush
Window
Glass, Safety Glass or Acrylic
Thermowells
Explore Ashcroft® thermowells for your specific application.
Ashcroft offers a selection of thermowells to protect thermometer stems and bulbs from corrosive media, system pressure and high velocity flow. They also allow removal of the temperature measurement instrument without the need to shut down the process. Industry standard threaded, flanged, socket weld, Van Stone, weld-in and sanitary thermowells in a wide variety of lengths and materials are available to match nearly any temperature measurement device and fit any installation to meet industry standards.
Threaded Thermowell
Ashcroft® threaded thermowell isolates and protects a temperature instrument’s sensing element from pressurized, high velocity and corrosive media. They ensure longer life and accurate measurement while allowing the sensing instrument to be removed without shutting down the process. A wide selection of materials, sizes and dimensions are available.
Specifications
Shank Style
Stepped
Straight
Tapered
Process Connection Size
1/2″ – 3/4″ – 1″
Instrument Connection
1/2 NPSM
1/2 NPT Female
Bore Size
0.260″
0.385″
Surface Finish
16-32 RA
Lagging
2″ if U-dimension is <3″
3″ if U-dimension is >3″
Custom Lag dimensions are available
Cap and Chain
Brass
Stainless Steel
Flanged Thermowell
Ashcroft® flanged thermowell isolates and protects a temperature instrument’s sensing element from pressurized, high velocity and corrosive media. They ensure longer life and accurate measurement while allowing the sensing instrument to be removed without without shutting down the process. A wide selection of materials, sizes and dimensions are available.
Specifications
Shank Style
Stepped
Straight
Tapered
Process Connection Size
1″, 1 1/2″ and 2″
Instrument Connection
1/2 NPSM
1/2 NPT Female
Bore Size
0.260″
0.385″
Flange Facing
Flat Face
Raised Face
Ring Joint
Rating/Class
150, 300, 600, 900, 1500 and 2500 class
Surface Finish
16-32 RA
flange finish 125-250 RMS
Lagging
2″ if U-dimension is <3″
3″ if U-dimension is >3″
Custom Lag dimensions are available
Cap and Chain
Brass
Stainless Steel
Temperature Switches
Temperature Switches
Ashcroft® temperature switches control high and low temperature operating limits in a broad range of applications. Simple and easy to install, they are available in a variety of configurations, including NEMA 4 and NEMA 7 temperature switches, OEM temperature switches, watertight temperature switches, explosion-proof temperature switches and differential pressure switches.
T-Series NEMA 4X Watertight Temperature Switch
The Ashcroft® T4 NEMA 4X temperature switch is designed for use in virtually all OEM and industrial applications. With temperature ranges from -40°F to 750°F, the T4 delivers outstanding repeatability, this switch is ideal for temperature control, shutdown or alarm operations. The T4 switch is SIL 3 Capable for safety applications.
Specifications
Setpoint Repeatability (Accuracy)
±1% of span (Additional setpoint shift of ±1% of range per 50°F from initial setpoint set at 70°F typical)
Switch output
SPDT or 2 SPDT acting as DPDT
Setpoint
Single setpoint – Factory set or field adjustable
Deadband
Fixed or limited adjustable
Enclosure Ratings
NEMA 4X / IP66
Enclosure Material
Explosion: epoxy coated aluminum
Pressure Connection
Direct Mount: ½ NPT Male
Remote Mount: ½ NPT Male Bushing (XBX) (OPT.)
Pressure Ranges
-40°F to 60°F through 500°F to 750°F
Electrical Termination
3/4 NPT Female conduit connection
½ NPT Female, M20 X 1.5 (OPT.)
Direct Mount
Stem lengths from 2¾˝ to 24˝
Remote Mount
Capillary lengths from 5´ to 25´ (5 ft. increments) Consult Factory for longer lengths
Wetted Material
Direct Mount: 316 Stainless steel
Remote Mount: Bulb capillary: 316 Stainless steel
Spiral armor: 302 Stainless steel
T-Series NEMA 7/9 Explosion Proof Temperature Switch
The Ashcroft® T7 NEMA 7/9 explosion proof temperature Switch is designed for use in hazardous applications. With temperature ranges from -40°F to 750°F, the T7/9 delivers outstanding repeatability, this switch is ideal for temperature control, shutdown or alarm operations. The T7 switch is SIL 3 Capable for safety applications.
Specifications
Accuracy
±1% of span
Setpoint Repeatability (Accuracy)
±1% of span (Additional setpoint shift of ±1% of range per 50°F from initial setpoint set at 70°F typical)
Switch output
SPDT or 2 SPDT acting as DPDT
Setpoint
Dual setpoint, fixed deadband
(Setpoints – factory set or field adjustable)
Single setpoint, adjustable deadband
Single setpoint, fixed deadband
Deadband
Fixed or limited adjustable
Enclosure Ratings
NEMA 7/9, IP66
Enclosure Material
Epoxy coated aluminum
Pressure Connection
Direct Mount: ½ NPT Male
Remote Mount: ½ NPT Male Bushing (XBX) (OPT
Electrical Termination
1/2 NPT Female M20x1.5 (OPT.)
3/4 NPT Female conduit connection
Direct Mount
Stem lengths from 2¾˝ to 24˝
Remote Mount
Capillary lengths from 5´ to 25´ (5 ft. increments) Consult Factory for longer lengths
Wetted Material
Direct Mount: 316 Stainless steel
Remote Mount: Bulb capillary: 316 Stainless steel
Spiral armor: 302 Stainless steel
Pressure Ranges
-40°F to 60°F through 500°F to 750°F
RTD Temperature Sensors
Explore Ashcroft® RTD temperature sensors for your specific application.
Ashcroft® RTD sensor assemblies monitor temperature in industrial, process and hazardous installations. Available with Pt 100 and Pt 1000 RTDs, they are designed for use with either DIN 43772/T.2 or ISA-ds 49 style thermowells along with DIN and ASME type lag extensions. A wide selection of aluminum and 316 stainless steel connection heads make these devices configurable to the requirements of nearly any installation.
S10 RTD with Metric Connections
S10 RTD Mineral Insulated Probe Assemblies with or without Lag extensions designed with metric fittings and connections.
Specifications
Stem Diameter
3 mm, 4.5 mm, 6 mm, 8 mm
Stem Length
Minimum: 50 mm/2 in
Maximum: 3 m/120 in
Accuracy Class
1/2 Class B
1/3 Class B
Class A
Class B
Sensor Type & Measuring Range
Pt 100 –200 to +600°C
Pt 1000 –40 to +600°C
Wiring Configuration
2 wire single or dual
3 wire
4 wire
Head Configuration
DIN B, BBK, BUZ and BUZH
S50 Industrial Thermocouple with NPT Connections
S50 Thermocouple Mineral Insultated Probe Assemblies with or without Lag extensions designed with NPT fittings and connections.
Specifications
Stem Diameter
3 mm
4.5 mm
1/8″
3/16″
1/4″
6 mm
8 mm
Stem Length
Minimum: 50 mm/2 in
Maximum: 3 m/120 in
Sensor Type & Measuring Range
Type J –40 to +750°C
Type E –200 to +800°C
Type K –200 to +1000°C
Type N –200 to +1000°C
Wiring Configuration
2 wire single or dual
Accuracy Class
Standard
Special
Class 1
Class 2
Class 3
Head Configuration
DIN B, BUZ, Ex d, SCCI, SCCA & Transmitters with display
Thermocouples/Temperature Sensors
Explore Ashcroft thermocouple sensors and thermocouple assemblies for your specific application.
Ashcroft thermocouples and assemblies monitor temperature in industrial, process and hazardous installations. Available with E, J, K, N & T type thermocouples, they are designed for use with either DIN 43772/T.2 or ISA-ds 49 style thermowells along with DIN and ASME type lag extensions. A wide selection of aluminum and 316 stainless steel connection heads make these thermocouples configurable to the requirements of nearly any installation.
S10 Thermocouple with Metric Connection
S10 Thermocouple Mineral Insulated Probe Assemblies with or without Lag extensions designed with metric fittings and connections.
Specifications
Stem Diameter
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
Type J –40 to +750°C
Type E –200 to +800°C
Type K –200 to +1000°C
Type N –200 to +1000°C
Wiring Configuration
2 wire single or dual
Accuracy Class
Standard
Special
Class 1
Class 2
Class 3
Head Configuration
DIN B, BBK, BUZ and BUZH
S50 Industrial RTD with NPT Connections
S50 RTD Mineral Insulated Probe Assemblies with or without Lag extensions designed with NPT fittings and connections.
Specifications
Stem Diameter
3 mm
4.5 mm
1/8″
3/16″
1/4″
6 mm
8 mm
Stem Length
Minimum: 50 mm/2 in
Maximum: 3 m/120 in
Sensor Type & Measuring Range
Pt 100 –200 to +600°C
Pt 1000 –40 to +600°C
Wiring Configuration
2 wire single or dual
3 wire
4 wire
Accuracy Class
1/2 Class B
1/3 Class B
Class A
Class B
Head Configuration
DIN B, BUZ, Ex d, SCCI, SCCA & Transmitters with display
MultiPoint Temperature Sensors
Explore Ashcroft® Multipoint temperature sensors for your specific application.
Ashcroft® offers a variety of multipoint temperature measuring instruments for processing facilities, power plants and chemical reactors throughout the world.
MultiPoint Temperature Sensors
Ashcroft® offers multipoint temperature sensors with multiple temperature sensing points housed in a protective sheath. They are available in large diameter and compact designs, and are custom designed with plant instrument, process, maintenance and reliability teams to meet each vessel’s specific requirements.
Key Features:
Multi-thermowell flanged assemblies with guide tube and compression devices
Straight multipoint for reactors with spring-loaded thermal blocks or welded heat transfer blocks
Flexible multipoint for reactors with mineral insulation cables with standard, reinforced or double wall
MultiOne thermocouples for reactors offer multiple sensing points along the length of MI-cable at various predetermined locations inside the catalyst bed
Multipoint accessories for reactors, such as: metal brackets, wall-mounting devices and soldering clip sources of thermal dissipation.
Applications:
Process Market:
Oil & Gas
Chemical
Petrochemical
LNG Tanks
OEM Temperature Sensors
Explore Ashcroft® OEM temperature sensors, OEM sensors and industrial temperature sensor for your specific application.
Ashcroft® OEM Temperature Sensors models ITS1 through ITS5 and KTS1 products offer a matched range of sensors specially designed for temperature measurement in the industrial OEM industry.
KTS1 Temperature Sensor
The Ashcroft® KTS1 temperature sensor is designed highly flexible so we can customize them to suit your specific application requirements.
Specifications
Measurement Element
RTD (PT100/PT1000)
Probe Sheath
stainless steel
Ingress Rating
IP67
IP69 (depending on model)
Electrical Connection
Cable output
Circular M12 (ITS4)
MVS/A EN 17601-803A
MVS/C EN 17601-803A
Custom Connections
Outputs
0 – 10 V
I2C
4-20 mA
CAN
Ratiometric
Custom Output Solutions
Process Connection
1/4 NPT Male
7/16-20 UNF-2A
G 1/4 A Form E
M14 x 1.5 Form E
Custom Connections
Ranges
-70°C to 200°C with custom scaling
ITS 1
ITS 2
ITS – OEM Temperature Sensors
The Ashcroft® ITS temperature sensor models 1 through 5 are customized to suit your specific application requirements.
ITS 3
ITS 4
ITS 5
Specifications
Measurement Element
KTY
NTC
RTD (PT100/PT1000)
Thermocouples
Custom Solutions
Probe Sheath
Aluminum
Brass
Plastic Over Molded (ITS2 Only)
stainless steel
Ingress Rating
IP65 – IP66 – IP67 – IP68
Extension Cable – ITS1, ITS2, ITS3 & ITS5
PTFE
PVC
Silicone
Electrical Connection
AMP Junior Power Timer (ITS4)
Bayonet DIN 72585 (ITS4)
Circular M12 (ITS4)
Deutsch DT 104-2P (ITS4)
FASTON Blade Terminal 8.3 x 0.8mm (ITS4)
Rectangular EN 175301-803A (ITS4)
Wire and Connector (ITS1, ITS2, ITS3 & ITS5)
Wire and Terminals (ITS1, ITS2, ITS3 & ITS5)
Wire Leads (ITS1, ITS2, ITS3 & ITS5)
Custom Connections
Outputs
4-20 mA
RTD
Thermistor
Thermocouple
Custom Output Solutions
Process Connection – ITS3 & ITS4
1/8 NPT Male
¼ NPT Female
Custom Connections
Mounting
Clamp on bracket for a pipeline (ITS5 Only)