CM Telephone +44 (0)1926 812066

Products / Temperature Standards and Sensors

Temperature standards and sensors from Accumac and Benrhos include a wide range of platinum
resistance thermometers and precision thermocouples.

Accumac AM 1758 - Gradient PRT

AM1758 is specifically designed to measure vertical gradients of dry block or dry well. The
length of the sensing element is only 6 mm, which allows AM1758 to measure detailed
temperature changes inside the dry wells with pin point precision.tem SPRT.

  • Vertical gradient measurement of dry
    block/dry Well
  • 6 mm sensing element
  • Temperature range: -200 °C to 670 °C
  • Short term stability: ±0.003 °C at 0.01 °C
Download
Datasheet
Make
Enquiry

Accumac AM 1968 - Capsule SPRT

AM1968 Platinum Capsule SPRT covers temperatures from -260ºC to 232ºC. The capsule construction makes this SPRT a preferred primary standard for cryogenic applications and other applications where space is limited or stem conduction is a concern for a long stem SPRT.

  • Temperature range -260ºC to 232ºC
  • Resistance at tpw nominal 25 ohms
  • Short term stability <1mK
  • Dimensions 5mm diameter, 7 mm glass head diameter, 60mm long
Download
Datasheet
Make
Enquiry

Accumac AM1960/1950 - Standard Platinum Resistance Thermometers

Standard Platinum Resistance Thermometers (SPRTs) are used to interpolate temperature in the range from -189.3442°C to 660.323°C on the International Temperature Scale of 1990 (ITS-90). They are widely used as standard or reference thermometers to calibrate other thermometers and to measure temperature precisely in primary and secondary laboratories.
AM1950 and AM1960 SPRTs are the crown jewels of AccuMac temperature probes. It takes decades of our scientific expertise and original craftsmanship to create these world-class products. They feature a very low drift rate.

  • Temperature ranges -200ºC to +500ºC (1950)
    -200ºC to +670ºC (1960)
  • Resistance at tpw nominal 25 ohms
  • Extremely low drift
  • Sheath Material: fused quartz
  • Dimensions 7mm diameter x 480mm long (1950)
    7mm diameter x 500mm long (1960)
Download
Datasheet
Make
Enquiry

Accumac AM 1880 - Metal-Sheath SPRT

AM1880 Standard Platinum Resistance Thermometers (SPRT) interpolates temperature in the range from -200°C to 670°C on the International Temperature Scale of 1990 (ITS-90). It is designed as a primary or secondary standard thermometer to calibrate other thermometers and/or to measure temperature precisely in primary and secondary laboratories.
The sensing element and sensor support adopt a “Bird-Cage” design and they are protected inside a platinum capsule. Compared to the traditional coil wounding method, the “Bird-Cage” handles mechanical shocks much better at the same time allows for high purity platinum wire to be wound strain-free.

  • Bird cage designed sensing element and sensor ensures a better resistance to mechanical shocks
  • Temperature range -200ºC to +670ºC
  • Sheath material inconel
  • Platinum capsule protects the sensor from high-temperature contaminations
  • Dimensions: 5.56mm diameter x 500mm long
Download
Datasheet
Make
Enquiry

Accumac AM1860/1850 - Standard Platinum Resistance Thermometers

Standard Platinum Resistance Thermometers (SPRTs) are common used to interpolate temperature in the range from -189.3442°C to 660.323°C on the International Temperature Scale of 1990 (ITS-90). They are widely used as standard or reference thermometers to calibrate other thermometers and to measure temperature precisely in primary and secondary laboratories.

  • Temperature ranges -200ºC to +500ºC (1850)
    -200ºC to +670ºC (1860)
  • Resistance at tpw nominal 25 ohms or nominal 100 ohms
  • Ideal reference thermometer for dry-block calibrators
  • Sheath material inconel
  • Dimensions 6.35mm diameter x 480mm long (1850)
    6.35mm diameter x 500mm long (1860)
Download
Datasheet
Make
Enquiry

Accumac AM1760/1762 - Secondary Standard Platinum Resistance Thermometers

AM1760 series Secondary Standard PRT provides our customers an affordable SPRT alternative for precision temperature measurement and calibration in labs and fields. This SPRT features accuracy of ±0.006°C at 0.01°C , short term stability of ±0.002°C and very low drift rate of less than 19 mK after 500 hours. Two different lengths of SPRTs are available at 12-inch and 20-inch.
The sensing element is designed to protect the platinum sensing wire from contamination at high temperatures, giving the device a high level of stability and repeatability in performance.

  • Rtpw Drift < 19 mK after 500 hours
  • Accuracy ±0.006 °C at 0.01 °C
  • Temperature range: -200 °C to 670 °C
  • Customized dimensions available
Download
Datasheet
Make
Enquiry

Accumac AM1750 - Secondary Reference PRT

AM1750 series Secondary Reference PRT provides our customers an affordable reference probe for precision temperature measurement and calibration in labs and fields. The PRT features accuracy of ±0.015°C at 0.01°C ; short-term stability of ±0.007°C. Two different lengths of PRTs are available at 12-inch and 20-inch.
The sensing element is designed to protect the platinum sensing wire from contamination at high temperatures, giving the device a high level of stability and repeatability in performance.

  • Temperature range -200ºC to +670ºC
  • Resistance at 0ºC nominal 100 ohms
  • Accuracy at 0.01ºC ±0.015ºC
  • Sheath material inconel
  • Dimensions 6.35mm diameter x 305mm long (1750-12)
    6.35mm diameter x 500mm long (1750-20)
Download
Datasheet
Make
Enquiry

Accumac AM1730 - Secondary Reference PRT

AM1730 series Secondary Reference PRT provides our customers an affordable reference probe for precision temperature measurement and calibration in labs and fields. The PRT features accuracy of ±0.015°C, short term stability of ±0.007°C. Two different lengths of PRTs are available at 9-inch and 12-inch.
To reach the best performance in stability and repeatability, the sensing element is specially designed to protect the platinum sensing wire from contamination at high temperature.

  • Temperature range -200 to +420ºC (1730-12)
    -60 to + 300ºC (1730-9)
  • Resistance at 0ºC nominal 100 ohm
  • Accuracy at 0.01ºC ±0.015ºC
  • Sheath material inconel
  • Dimensions 6.35mm diameter x 309mm long (1730-12)
    4.75mm diameter x 229mm long (1730-9)
Download
Datasheet
Make
Enquiry

AM1660/1640/1620 - Precision Industrial PRTs

AM1620/1640/1660 series precision industrial PRTs are top choices when price-to-performance is considered. They cover a wide range of temperature from -200 °C to 670 °C with amazing accuracy of ±0.035°C at 0 °C, short term stability of ±0.01°C and fast respond time of 5 seconds. These industrial PRTs come with standard length 12-inch but customized dimensions are available per request.
To reach the best performance in stability and repeatability, the wire-wound sensing elements are specially designed to protect the platinum sensing wire from contamination at high temperature.

  • Temperature range – 200ºC to +670ºC
  • Accuracy ±0.035ºC at 0ºC
  • Resistance at 0ºC nominal 100 ohms
  • Durable and shock resistant
  • Customised sizes available
Download
Datasheet
Make
Enquiry

Accumac AM1610 - Precision Industrial PRT

With 5mm long sensor, AM1610 series precision industrial PRT provides users an excellence temperature probe with extremely low stem conduction (heat loss along sheath) in precision temperature measurement. It is a great tool for measuring and testing the vertical temperature uniformity of heat sources.
AM1610 uses a special aged and tested 5-mm long sensing element to achieve the best performance in stability and repeatability. A unique assembly procedure provides the best balance amongst hysteresis effect, mechanical shock and thermal shock performance.

  • Temperature range -60ºC to +160ºC
  • Accuracy ±0.05ºC
  • 316L stainless steel sheath
  • Customised sizes available
Download
Datasheet
Make
Enquiry

Accumac AM1612 - Full Immersion PRT

The AM1612 full immersion PRT is uniquely designed to provide users with an excellence temperature probe that can expose the transition junction and lead wires to an environment that covers the full PRT temperature range.
The probe seal prevents the ingress of moisture allowing it to work in humid conditions or even under full immersion in common heat transfer fluids such as ethanol, silicone oil and mineral oil.

  • Temperature range -196ºC to +180ºC
  • Accuracy ±0.05ºC
  • 316L stainless steel sheath
  • Dimensions 3mm diameter x 50mm long
Download
Datasheet
Make
Enquiry

Accumac AM1642 - Full Immersion PRT

AM1642 full immersion PRT features a unique design that allows for the users to apply the probe together with its lead wire in a high temperature environment such as ovens or furnaces etc. It covers a wide range of temperature from 0 °C to 420 °C with amazing accuracy of ±0.04°C at 0 °C, short term stability of ±0.02°C and fast respond time of 5 seconds.

  • Temperature range 0 to 420ºC
  • Accuracy ±0.04ºC at 0ºC
  • Transition junction and lead wire can withstand temperatures up to 420ºC
  • Dimensions 3mm diameter x 100mm long (length can be customised)
Download
Datasheet
Make
Enquiry

Accumac AM1210 - Type S Reference Standard Thermocouple

AM1210 Reference Standard Type S Thermocouple is made from reference grade platinum and platinum-rhodium alloy. It covers a temperature range of 0 °C to 1300 °C with short term stability of 0.2 °C all the way to Freezing Point of Copper (1084.62 °C). It is commonly used as reference standard to calibrate industrial thermocouples. All thermocouple wires and parts are specially cleaned and annealed before assembly.

  • Temperature range 0ºC to 1300ºC
  • Long term drift ±0.6ºC at 1084.62ºC after 1 year typical usage
  • Dimensions 6mm diameter x 500mm long
Download
Datasheet
Make
Enquiry

Benrhos ULTAS 20 - Precision Thermocouple

A double junction thermocouple for accurate referencing of measuring thermocouples and for performing fundamental calibration by simulation and measurement.

  • Double junction thermocouple
  • Types E, J, K, N, R, S, T & U available
  • 316L stainless steel sheath
  • Dimensions 4mm diameter x 250mm long
Download
Datasheet
Make
Enquiry

Contact Chamois Metrology