Model-1600
High-Accuracy Reference Thermocouple for Calibration Labs and High-Temperature Applications
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The Isotech Model 1600 is a premium Type R or Type S thermocouple standard, designed for calibration laboratories and high-temperature environments up to 1600 °C.
It is ideal for laboratories calibrating with compliance to AMS 2750 and ASTM E2750, including aerospace, automotive, and energy sectors.
Manufactured using ultra-high purity Platinum/Platinum Rhodium wire (Pt/13%Rh for Type R, Pt/10%Rh for Type S), the Model 1600 ensures excellent long-term stability and low drift. A continuous noble metal conductor runs from the hot junction to the cold junction with no intermediate splices, preserving measurement integrity.
The measuring junction is protected inside a gas-tight 7 mm recrystallized alumina ceramic sheath. Inside is a removable 2.5 mm twin-bore insert housing the thermocouple wires. This removable assembly enables independent calibration or replacement without disturbing the outer sheath.
At the cold end, a 250 mm stainless steel sheath provides a stable 0 °C reference junction, connected via 2 m low-EMF copper leads. For systems with internal referencing, a “No Cold Junction” (NCJ) option is available.
| Model | 1600 |
|---|---|
| Hot Sheath Temperature Range | 0°C to 1600°C (R or S) |
| Emf vs Temperature | According to relevant document |
| Response Time | 5 minutes |
| Hot Junction Dimensions | see diagram |
| Connecting Cable | See diagram |
| Cold Junction | 250.0mm long x 4.5 diameter |
| Copper Extension Wires | 2000mm |
| Short Term Stability | ±0.2 deg C or better |
| Immersion | 100mm min. |
| Case Dimensions | Height 65mm, Width 710mm, Depth 165mm, Gross Weight 900g |
| Feature | Removeable inner assembly |
| The standard thermocouple described can be supplied in the following noble metal combinations: | Type R: Platinum v Platinum 13% Rhodium or Type S: Platinum v Platinum 10% Rhodium |
| How to order | Model 1600 type R/300, Model 1600 type R/600, Model 1600 type S/300, Model 1600 type S/600. If cold junction not required, specify NCJ. UKAS Calibration included. |
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