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E-mail
hualuyb@163.com
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Phone
18015194111
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Address
No. 201 Jinhe Road, Jinhu County, Huai'an City, Jiangsu Province
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Jiangsu Hualu Instrument Co., Ltd
Vertebral power station thermocouple
NegotiableUpdate on 08/15
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Overview
Vertebral power station thermocouple
Product Details
Detailed Introduction
1、 Overview:
Power station thermocouples are designed for power stations and can meet the temperature measurement needs of 300000, 600000 kW and other generator sets and auxiliary equipment. Directly measure the temperature of liquid, vapor, gas media, and solid surfaces within the range of -200 ° C to 800 ° C in various production processes.
2、 Working principle;
The electrodes of a thermocouple are composed of two different conductor materials. When there is a temperature difference between the measuring end and the reference end, a thermoelectric potential is generated, and the working instrument displays the temperature value corresponding to the thermoelectric potential.
Thermistor measures temperature by utilizing the characteristic that the resistance of a substance changes with temperature. When the resistance value changes, the working instrument displays the temperature value corresponding to the resistance value.
3、 Main parameters;
Product execution standards
584
751
1515
JB/T18622-1997
JB/T8623-1997
GB/T16839-1997
4、 Measurement range and tolerance:
| Model number | Dividing number | Tolerance level | |||
| I | II | ||||
| Allowable deviation | Temperature measurement range ° C | Allowable deviation | Temperature measurement range ° C | ||
| WRN | K | ±1.5°C | -40~+375 | ±2.5 °C | -40~+333 |
| ±0.004ltl | 375~1000 | ±0.0075 ltl | 333~1200 | ||
| WRM | N | ±1.5°C | -40~+375 | ±2.5°C | -40~+333 |
| ±0.004 ltl | 375~1000 | ±0.0075 ltl | 333~1200 | ||
| WRE | E | ±1.5°C | -40~+375 | ±1.5°C | -40~+333 |
| ±0.004 ltl | 375~800 | ±0.004 ltl | 333~900 | ||
| WRF | J | ±1.5°C | -40~+375 | ±1.5°C | -40~+333 |
| ±0.004 ltl | 375~750 | ±0.004 ltl | 333~750 | ||
| WRC | T | ±1.5°C | -40~+125 | ±1°C | -40~+133 |
| ±0.004 ltl | 125~350 | ±0.0075 ltl | 133~350 | ||
5、 Room temperature insulation resistance:
The thermal resistance is tested at an ambient temperature of 15-35 ° C, relative humidity not exceeding 80%, and a test voltage of 10-100V (DC). The insulation resistance between the electrode and the outer sleeve is greater than 100M Ω.
The thermocouple is tested at an ambient temperature of 20 ± 15 ° C, relative humidity not exceeding 80%, and a test voltage of 500 ± 50V (DC). The insulation resistance between the electrode and the outer sleeve is greater than 1000 Ω m
