Product Name: WZP series assembled platinum resistor




Product No.: 132945-290
Product model: 0
Updated on: June 14, 2009
Manufacturer: thermo couple -- Shanghai Feilong instrument & Electrical Co., Ltd
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Product details
WZP series assembled platinum resistor
(with imported platinum resistance element)
The industrial platinum resistance is used as the temperature measurement transmitter, which is usually used to display, record and adjust the instrument matching. It can directly measure the surface temperature of liquid, vapor, gas medium and solid in the range of - 200-500 ℃ in various production processes.
This series of assembled platinum resistance adopts imported platinum resistance elements as temperature measuring elements. Therefore, it has good electrical output performance. The display, recorder, regulator, scanner, data recorder and computer provide accurate temperature change input signals.
Structural principle
The assembled platinum resistor is composed of temperature sensing element, stainless steel outer protective tube, junction box and various fixed devices, consisting of double and single
There are two specifications of supporting elements, and two platinum resistances can output two groups of the same resistance signals for use at the same time.
Platinum resistance is a kind of temperature sensor. It uses the characteristics of platinum wire's own resistance changing with the change of temperature to measure the temperature. The stainless steel protective tube not only has corrosion resistance, but also has enough mechanical strength to ensure that platinum resistance can be used safely in various occasions. Assembly type platinum resistance junction box is divided into splash proof type and waterproof type for selection. The installation and fixing device includes fixed thread, movable flange plate, fixed installation flange plate and cone-shaped protective pipe device with fixed bolt, etc.
Main technical indicators
Resistance value (day) of thermal resistance temperature sensing element at O ℃. )
Index number PTl00: class a r. =100+_O．06Ω
Class B ro = 100 ± 0.12 Ω
Thermal response time
In case of step change of temperature, the time required for the output of thermal resistance to change to 50% of the step change is called thermal response time, which is expressed in t05s.
Nominal pressure
Generally, it refers to that under normal temperature, the protective pipe can bear static external pressure without rupture, and the test pressure is generally 1.5 times of the nominal pressure. Actual
The allowable nominal pressure is not only related to the protection pipe material, diameter and wall thickness, but also related to its structural form, installation method, insertion depth and the flow rate and type of the measured medium.