Detail:
Product Name: power station thermocouple / thermal resistance
Product features:
1, application
Professional for power plant design, can meet the needs of 300000, 600000 kilowatts generating units and auxiliary temperature etc.. Direct measurement of liquid, steam and gas medium and solid surface temperature in the range of -200, C~800, C, in various production processes.
2, working principle
The electrodes of the thermocouple are made of two different materials. When there is temperature difference between the measuring end and the reference end, it will generate the thermal potential, and the working meter will show the corresponding temperature value of the thermal potential. Thermal resistance is used to change the temperature of the material, its resistance is also with the characteristics of the occurrence of changes in temperature measurement. When the resistance changes, the instrument will display the corresponding resistance temperature value.
3, the main technical parameters
Product implementation standard:
IEC584
IEC751
IEC1515
JB/T18622-1997
JB/T8623-1997
GB/T16839-1997
4, measurement range and tolerance
Type number difference, etc.
I II
Acceptable temperature range of temperature measurement range of the temperature measurement range of C
K C 1.5 -40~+375 C 2.5 -40~+333 WRN
375~1000 LTL 0.0075 333~1200 0.004ltl
N C 1.5 -40~+375 C 2.5 -40~+333 WRM
0.004 375~1000 LTL 0.0075 333~1200 LTL
E C 1.5 -40~+375 C 1.5 -40~+333 WRE
0.004 375~800 LTL 0.004 333~900 LTL
J C 1.5 -40~+375 C 1.5 -40~+333 WRF
0.004 375~750 LTL 0.004 333~750 LTL
T C 1.5 -40~+125 C 1 -40~+133 WRC
0.004 125~350 LTL 0.0075 133~350 LTL
5, insulation resistance at room temperature
Thermal resistance at ambient temperature of 15 - 35 C, relative humidity is not greater than 80%, the test voltage is 10 - 100V (DC) electrode and the insulation resistance between the outer jacket tube 100M.
Thermocouple at ambient temperature of 20 + 15 C, relative humidity of not more than 80%, the test voltage of 500 + 50V (DC) electrode and the insulation resistance between the outer jacket tube 1000.M
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