# Resistance thermometer for civil nuclear applications — TRN

> Resistance thermometer for civil nuclear applications with IEEE conformity, suitable for reactor buildings, peripherals, HVAC, and accident-proof applications.

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

## Overview

Thermometer for use in nuclear power plants comprise: Resistance thermometer, model TRN Thermowell/protection tube Accessories The model TRN ...

## Applications

- Reactor building
- Peripherals
- Heating, ventilation, air-conditioning
- Accident-proof applications
- Temperature measurement of primary, secondary and tertiary circuits and also temperature monitoring in fuel pools

## Special features

- Measuring range from -50 ... +600 °C [-58 ... +1,112 °F]
- For mounting in all standard thermowell/protection tube designs
- Spring-loaded measuring insert
- Pt100 measuring resistors

## Specifications

| Parameter | Value |
|---|---|
| model | TRN |
| product family | TRN |
| short description | Resistance thermometer for civil nuclear applications with IEEE conformity, suitable for reactor buildings, peripherals, HVAC, and accident-proof applications. |
| subcategory | Resistance thermometer |
| certifications | RoHS; UKCA; CE |
| ambient temp | -40 … 80 °C |
| ip rating | IP65 |
| languages in datasheet | en |
| temperature ranges | -50 … 600 °C; -50 … 400 °C; -30 … 300 °C |
| sensor type | Pt100 |
| sensor class | A, B |
| probe diameter mm | 4 |
| probe material | Stainless steel 1.4571 |
| has thermowell | true |
| process temp | -50 … 600 °C |
| output signal | 80 ... 314 Ω |
| electrical connection | Harting connector, TS connector LOCA, Connector LOCA + SA |
| accuracy class | Class A: ±(0.15 + 0.0020 \|t\|) °C; Class B: ±(0.30 + 0.0050 \|t\|) °C |

## Datasheet tables

| 1 | Measurement principle | Design | Operating conditions (connector) |
|---|---|---|---|
| Code / Placeholder | X | Y | Z |
| Example | TRN- | I | H |
| Description | Resistance thermometer | Immersed | Harting connector |

| Model | Description |
|---|---|
| TRN-Iz | Immersed, with and without thermowell/protection tube (I = immersed) |
| TRN-Az | Room air sensor (A = ambient) |
| TRN-Sz | Surface probe (S = surface); for versions, see model TR50, data sheetTE 60.50 |
| TRN-Pz | Resistance Thermometer for cooling ponds and similar applications (P = pool) |
| TRN-Gz | Combined sensor (G = gradient) |

| 1 | TRN-yH (14481879) | TRN-yA (14479583) | TRN-yC (14529466) |
|---|---|---|---|
| Connector description | Harting (HAN7D...) | TS connector LOCA | Connector LOCA + SA |
| IP ingress protection | IP65 (IP67 possible without radiation) | IP68 | IP68 |
| IEEE rating | N1E Harsch | 1E | 1E + SA |
| Qualified lifetime | 12 years at 45 °C ambient tem- perature | 55 years at 45 °C ambient tem- perature | 55 years at 45 °C ambient tem- perature |
| Maximum radiation during normal operation | 100 kGy TID - 'Total Integrated Dose' | 250 kGy TID - 'Total Integrated Dose' | 250 kGy TID - 'Total Integrated Dose' |
| Maximum radiation during accident | - | 600 kGy (TID: 850 kGy) | 600 kGy (TID: 850 kGy) |
| LOCA test conditions | - | max. 195 °C, 5.4 bar (g), 24 h | 1 h at 250 °C; 5 h at 207 °C |
| Accidental radiation after LOCA | - | - | 1,000 kGy (TID: 1,850 kGy) |
| Humidity | 90 %relative humidity | 100 %relative humidity | 100 %relative humidity |
| Ambient and storage temper- ature | -40 …+80 °C [-40 …+176 °F] | -40 …+80 °C [-40 …+176 °F] | -40 …+80 °C [-40 …+176 °F] |

| 1 | Measuring tipØ4mm | Measuring tipØ4mm |
|---|---|---|
| Thermometer version |  |  |
| Sensor | 1 x Pt100 | 1 x Pt100 / Differential thermocouple 1) |
| Connection method | 4-wire | 3-wire |
| Diameter | 4mm | Pt100: 4 mm/ Differential thermocouple:1.2mm |
| Probe length | 150 ...1,100mm | 150 ...1,100mm |
| Material | Stainless steel 1.4571 | Stainless steel 1.4571 |
| Response time in seconds (+/-10 %) |  |  |
| t 0.5 | 5.0 | Pt100: 5.0 / Differential thermocouple: < 3 incl. calculation in the transmitter |
| t 0.63 | 6.0 | Pt100: 6.0 / Differential thermocouple: < 3 incl. calculation in the transmitter |
| t 0.9 | 12.0 | Pt100: 12.0 / Differential thermocouple: < 3 incl. calculation in the transmitter |

| Logo | Description | Region |
|---|---|---|
|  | EU declaration of conformity | European Union |
|  | UKCA Restriction of hazardous substances (RoHS) regulations | United Kingdom |

| Certificates | Measurement accuracy | Material certificate 1) |
|---|---|---|
| 2.2 test report | x | x |
| 3.1 inspection certificate | x | x |
| DAkkS calibration certificate | x | - |

| Model | Description | Order number |
|---|---|---|
| Cable couplings | Mounting type depending on cable / customer specification | customer-specific |

## Documents

- [ds_te7502_en_co_ac4403](https://avigan.com.ua/wika/docs/wika/ds_te7502_en_co.pdf) — PDF, 406 KB, en