Product description:
Professional for power station design, can satisfy 30 kw, 60 kw generator and auxiliary temperature measurement needs.Direct measurement in the process of various production - 200 ℃ ~ 1800 ℃ within the scope of liquid, steam and gas and solid surface temperature.
The working principle of
The thermocouple electrode is composed of two different conductor material.When measuring the temperature difference is with the reference, the can produce thermoelectric power, the instrument will show thermoelectric potential corresponding temperature value.
Thermoelectric value is the use of thermal element when the temperature changes, its resistance value is changed as the feature to measure temperature.When resistance changes, the work shows the temperature resistance of the meter.
The normal temperature insulation resistance
Thermocouple in the environmental temperature is 20 + 15 ° C, relative humidity is not more than 80%, test voltage for 500 + 50 v (dc) electrode and outer casing of the insulation resistance between > 1000 omega. M
Thermal resistance at ambient temperature for 15-35 ° C, relative humidity is not more than 80%, test voltage for 10-100 - v (dc) electrode and outer casing of the insulation resistance between > 100 m omega
The main technical parameters
Product standards
IEC584
IEC751
IEC1515
JB/T18622-1997
JB/T8623-1997
GB/T16839-1997
Measuring range and tolerance
thermocouple
model | Degree, | Tolerance level | |||
Ⅰ | Ⅱ | ||||
Tolerance values | Measuring range (℃) | Tolerance values | Measuring range (℃) | ||
WRN | K | + / - 1.5℃ | - 40 ~ + 375 | + / - 2.5℃ | - 40 ~ + 333 |
±0.004∣t∣ | 375 ~ 1000 | ±0.0075∣t∣ | 333 ~ 1200 | ||
WRE | E | + / - 1.5℃ | - 40 ~ + 375 | + / - 2.5℃ | - 40 ~ + 333 |
±0.004∣t∣ | 375 ~ 800 | ±0.0075∣t∣ | 333 ~ 600 |
The thermal resistance
model | Degree, | Measuring range (℃) | Precision grade | tolerance |
WZP | Pt100 | - 200 ~ + 500 | A grade | ±(0.15+0.002∣t∣) |
Class B | ±(0.30+0.005∣t∣) | |||
WZC | CU50 CU100 | - 50 ~ + 150 | — | ±(0.30+0.006∣t∣) |
Note: t for thermal components measured temperature absolute value;