# Sapphire-design thermocouple — TC84

> For high-temperature measurements with safety chamber

- Catalog code: tc84
- Model: TC84
- Category: Temperature measurement › Thermocouples
- Product page: https://avigan.com.ua/wika/en/products/tc84
- Price: on request
- Supplier: AVIGAN (TOV VIKA Prylad), official WIKA partner in Ukraine

## Overview

This high-temperature thermocouple with a gas-tight sapphire protection tube has been specifically developed for use in gasification reactors. Through the ...

## Applications

- Gasification reactors
- GtL reactors (Gas-to-Liquids)
- Sulphur recovery plants

## Special features

- 3 times longer service life in comparison to purely ceramic protection tubes due to the monocrystalline structure of the sapphire sensor
- High process safety with processes up to 1,700 °C [3,092 °F] and 65 bar [943 psi]
- Reduction of unplanned downtime
- Increased safety through double sealing system against escape of toxic media
- Cost savings through the elimination of a purge system and the repairability of the sensor

## Specifications

| Parameter | Value |
|---|---|
| model | TC84 |
| product family | TC |
| short description | Sapphire-design thermocouple for high-temperature measurements with safety chamber, suitable for gasification reactors, GtL reactors, and sulphur recovery plants. |
| subcategory | High-temperature thermocouple with sapphire protection tube |
| certifications | RoHS; CE; EMC EN 61326; EAC; REACH |
| explosion protection | ATEX Ex ec IIC T1...T6 Gc X; IECEx Ex ec IIC T1...T6 Gc; EAC Ex ec IIC T1...T6 Gc; CCC Ex ec IIC T1...T6 Gc; ECAS Ex ec IIC T1...T6 Gb X; ATEX directive Hazardous areas - Ex e Zone 2 gas II 3G Ex ec IIC T1 ...T6 Gc X; IECEx (option) Hazardous areas - Ex e Zone 2 gas Ex ec IIC T1 ...T6 Gc; EAC Hazardous areas - Ex e Zone 2 gas Ex ec IIC T1 ...T6 Gc; CCC Hazardous areas - Ex e Zone 2 gas Ex ec IIC T1 ...T6 Gc; ECAS Hazardous areas - Ex e Zone 2 gas Ex ec IIC T1 ...T6 Gb X; II 3G Ex ec IIC T1 ...T6 Gc X; IECEx (option); Ex e Zone 2 gas |
| ambient temp | -40 … 195 °C |
| ip rating | IP65 |
| languages in datasheet | en; de |
| temperature ranges | 0 … 1600 °C; 0 … 1700 °C |
| sensor type | Type S, Type R, Type B |
| sensor class | 1, 2 |
| probe length mm | 1200 |
| probe diameter mm | 8 |
| probe material | Sapphire; Ceramic C799; Ceramic C610 |
| has thermowell | true |
| thermowell material | Sapphire; Ceramic; 1.4541; 1.5415; 1.7335; 1.7380; F11; F22; SS321; Ceramic C799; Ceramic C610 |
| thermowell form | fabricated |
| process connections | ASME B16.5; EN 1092-1; ASME 1.5 ... 4"; EN 1092-1 DN40 ... DN100; RF; LT; ST; Form B1; Form B2; Form E; Form C; Flange |
| process temp | 0 … 1700 °C |
| accuracy class | Per IEC 60584-1:2013 |

## Datasheet tables

### Operating conditions 1)

| Operating temperature | 2 |
|---|---|
| Type S | Max. 1,600 °C [2,912 °F] |
| Type R | Max. 1,600 °C [2,912 °F] |
| Type B | Max. 1,700 °C [3,092 °F] |
| Ambient temperature range |  |
| T1 ...T6 | -40 ...+80 °C [-40 ...+176 °F] |
| T1 ...T3 | -40 ...+195 °C [-40 ...+383 °F] |
| Storage temperature range | -40 ...+200 °C [-40 ...+392 °F] |
| Pressure limitation | to 65 bar [943 psi] |

| Logo | Description | Region |
|---|---|---|
|  | EU declaration of conformity EMCdirective EN 61326 emission (group 1, class B) and immunity (industrial environments) | European Union |

| 1 | Description | Logo | Region |
|---|---|---|---|
|  | EU declaration of conformity | European Union |  |
|  | ATEX directive Hazardous areas - Ex e Zone 2 gas II 3G Ex ec IIC T1 ...T6 Gc X |  |  |
|  | IECEx (option) Hazardous areas - Ex e Zone 2 gas Ex ec IIC T1 ...T6 Gc | International |  |
| - | PAC Ukraine Metrology, measurement technology | Ukraine |  |
|  | EAC Hazardous areas - Ex e Zone 2 gas Ex ec IIC T1 ...T6 Gc | Eurasian Economic Com - munity |  |
|  | CCC Hazardous areas - Ex e Zone 2 gas Ex ec IIC T1 ...T6 Gc | China |  |
| - | ECAS Hazardous areas - Ex e Zone 2 gas Ex ec IIC T1 ...T6 Gb X | United Arab Emirates |  |

### Certificates

| Certificates | ■ 2.2 test report per EN 10204 (e.g. state-of-the-art manufacturing, material proof, indication accuracy) ■ 3.1 inspection certificate per EN 10204 (e.g. material proof for wetted metal parts, indication accuracy, calibration certificate) |
|---|---|
| Calibration | ■ Factory calibration certificate ■ DAkkS calibration certificate (traceable and accredited in accordance with ISO/IEC 17025) |
| Recommended calibration interval | 1 year (dependent on conditions of use) |

## Documents

- [ds_te6584_en_co_b89656](https://avigan.com.ua/wika/docs/wika/ds_te6584_en_co.pdf) — PDF, 586 KB, en