Detail:
The factory mainly produces thermocouple, thermal resistance and other instruments, the production of the assembly of the use of the international IEC standard. At the same time, the use of mechanical and electronic industry of the thermocouple unified design of the series, type spectrum.
Summary
Industrial assembly type thermocouple as the measurement temperature of the transmitter is usually and display instrument, recording instrument and electronic regulator, which can be directly measured in various production process from 0 to 1800 in the range of liquid, steam and gas medium and solid surface temperature.
In accordance with the relevant provisions of the state, our production conforms to IEC international standard indexing, platinum and rhodium 30 - platinum and rhodium, Platinum Rhodium 10 platinum, nickel chromium - nickel silicon, nichrome constantan and so on the assembly type thermocouple.
The assembly of the thermocouple is usually composed of a temperature sensor, a fixing device and a junction box.
Optional model
B, S, K, E
Main technical parameters
Measuring range and basic error limit
The basic error limit of the measuring range of the thermocouple type code number
WRK E 0800 nichrome constantan C + 0.75%t
Ni Cr nickel silicon WRN K 0 + - 1300 DEG 0.75%t
13- WRB R 0-1600 platinum rhodium C + 0.25%t
WRP S 01600 platinum Platinum Rhodium 10 C + 0.25%t
WRR B 01800 30 platinum rhodium 6 C + 0.25%t
Note: t is the temperature measurement of the temperature sensor (c).
Thermocouple time constant
Thermal inertia time constant (s) thermal inertia time constant (second)
I
90180
III
Practice
II
3090
IV
< 10
? - thermocouple nominal pressure: generally refers to a static external protective tube can withstand working temperature and rupture pressure.
The thermocouple shall be not less than the minimum insertion depth: its protection of 8 - 10 times the diameter of the casing (Frederick product exception)
The insulation resistance: when the ambient air temperature is 15 to 35 degrees, relative humidity is less than 80% when the insulation resistance is greater than or equal to 5000000000000 euro (voltage 100V). With the splash proof junction box of the thermocouple, when the relative temperature is 93 + 3 DEG C, the insulation resistance of more than 500000000000 euro (voltage 100V)
] high temperature insulation resistance thermocouples at high temperature, the hot electrode (including double branch type) and the protective tube and double heat between the electrodes insulation resistance (according to every meter) should be greater than the table value provided.
Long time using temperature (c)
Test temperature (c)
Insulation resistance value (Ohm)
More than 60060072000
More than 80080025000
More than 100010005000
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