Armor thermal resistance

Productoverview:
WZPK series Armor thermal resistance Is a kind of temperature sensor, it is assembled with thermal resistance of small diameter, easy bending, good shock resistance, suitable for installation can not be installed in the assembly type heat resistance occasions, with the introduction of temperature components of thermal resistance so accurate, sensitive and fast thermal response time, stable quality, long life and so on. The outer protective sleeve adopts stainless steel, filled with high density oxide insulator material, therefore, sheathed thermal resistance has strong anti pollution performance and mechanical strength, suitable for installation in harsh environment applications.

Two, work principle:
WZPK series Armor thermal resistance Under the action of temperature, thermal resistance wire resistance change with change, show resistance meter will instruct the thermal resistance value generated by the corresponding temperature value.
Three, application:
WZPK series Armor thermal resistance Can be used for temperature measurement within the range of -200-600 DEG C, can be directly used for copper wire and the two instrument used to connect with power good output characteristics, for display instrument, recorder, regulator, scanner, data recorder and computer to provide accurate temperature signal.

Four, main features:
1, fast thermal response time, reduce the dynamic error;
2, small diameter, length is not limited;
3, high measuring accuracy;
4, imported film resistor, stable and reliable performance.
Five, thermal response time:
In the temperature step change occurred, the output variation of the thermal resistance to the equivalent of the 50% step change time required that the response time is hot, denoted by t0.5.
Six, the nominal pressure:
Generally refers to the normal temperature, protection tube can withstａnd static pressure without rupture, 1.5 times of the test pressure generally adopts the nominal pressure. In fact, not only allow the nominal pressure and protection of pipe material, diameter, wall thickness, but also the structure, installation, and the insertion depth of the measured medium velocity, the kinds of.
Seven, the thermal resistance of insulation resistance:
1, room temperature insulation test voltage resistance is 10 ~ 100V DC arbitrary value, environmental temperature is over 15~35 DEG C, relative humidity should be less than 80% at room temperature, the insulation value should be not less than 100M.
2, the thermal resistance allowed by current:
3, by measuring the current Zui platinum resistance is less than 5mA.
Note: on this type of specific technical requirements (such as simple terminal, splash proof junction box, waterproof type connection box etc.) contact with the company.

Eight, technical parameters:
Product executive standard:
IEC751;
JB/T8623-1997;
JB/T8622-1997;
Insulation resistance at room temperature;
100MΩ。">Heat resistance at ambient temperature is 15 to 35 DEG C, relative humidity is less than 80%, the test voltage is 10 - 100V (DC) >100M. The insulation resistance between electrode and outer tube.

Nine, installation method:
1, first of all should measure the good thermal resistance thread thread or flange size, supporting flange or thread processing base.
2, according to the size of the base flange or threaded hole in the pipe, to be measured.
3, the flange or the screw tooth of the welding. The flange or thread is inserted has opened hole in the flange or threaded seat base and pipeline measured welding.
4, the screw base thermal resistance with bolts or threaded in has been welded.
5, according to the wiring diagram of the terminal box thermal resistance grounding line, and the display instrument is connected on the dial corresponding. Connection box can not contact with the wall of the measured medium pipeline, ensure the junction box temperature does not exceed the range of 100 DEG C. Outlet hole junction box should prevent due to poor sealing water vapor, dust deposition caused by short circuit terminal.

10, installation notes:

For the installation of thermal resistance; thermal resistance should pay attention to several details in the installation and use; for the temperature measurement is accurate, safe and convenient maintenance, and does not affect the equipment operation and production operation. To meet the following requirements, in the selection of installation site of thermal resistance and insertion depth should pay attention to the following 2 points:
1, with a protective casing with heat transfer thermal resistance and heat loss, in order to reduce the measurement error, the thermal resistance should have sufficient depth of insertion:
A, when measuring the original insertion depth is more than 1m, should be installed vertically, or installing supporting frame and a protective sleeve.
B, if you need to measure the flue gas temperature is, while the flue diameter is 1000mm, the thermal resistance can insert depth 500mm.
Heat resistance C, temperature measurement for fluid pipe center, generally the measuring end is inserted into the pipe center (vertical or inclined installation). If the measured fluid pipe diameter is 100 mm, the thermal resistance should choose the insertion depth of 50~100 mm (should take into account the size installation base or flange).
D, for temperature measurement of high temperature and high pressure and high speed fluid (such as main steam temperature), in order to reduce resistance to the fluid and prevent the protective sleeve to protect the casing fracture under the influence of the fluid, can take the protection tube or shallow inserted by thermal sleeve type heat resistance. Shallow inserted heat resistance protection sleeve type, which is inserted into the main steam pipe depth should be less than 75mm; thermal sleeve type thermal resistance standard insert depth 100mm.
2, in order to make the measuring end of thermal resistance and the measured full heat exchange medium, should choose a reasonable measuring position, to avoid the valve, elbow and piping and equipment installed near dead heat resistance.

11, measurement range and tolerance:

Twelve, thermal response time:

Thirteen, selection table:

For example: A, Ptl00, B, fixed thread M16 * 1.5, length 450mm, length of 300mm. WZPK-223, Ptl00, L:450 * 300, B * 1.5., M16

Fourteen, design and ordering:
1, model;
2, division no.;
3, precision grade;
4, fixed form;
5, the length or depth of insertion.
Customer service service commitment:
1, my company sold Zhongwei Thermal resistance series The product within twelve months of quality problems, responsible for free maintenance.
2, the warranty period if the products of our company have any quality problems, our company is responsible for free repair or replacement.
3, the warranty period if the user use undeserved, cause damage to the product, our company is responsible for the maintenance, collect the damaged parts cost.
4, after the warranty period of product quality problems, our company is responsible for the maintenance, collect the damaged parts cost.
5, if the user needs to our service, our company in the province of the user service personnel arrived at the scene within 12 hours, arrived at the scene 48 hours outside users.