The structure and principle of the integration temperature sensor

The TR series temperature transmitter is a product that has been continuously improved and improved after more than 20 years. Essence It uses thermal resistance or thermocouple as a temperature -sensitive element. It uses a dedicated circuit module to convert the signal of sensitive components into a standard current with a linear temperature. There are less valuable compensation lines or cables , and there are signals to transmit distortion, strong anti -interference ability, and can perform long -distance transmission. It can be very convenient to match various secondary instruments or computer systems to achieve temperature measurement and control.

Uses
The instrument is suitable for the detection of the medium temperature in the industrial field, the medium temperature in the pipeline, container, or the temperature of other gases, liquid, and the temperature of the furnace.

protection type
ordinary type < /strong>: It has waterproof and dustproof performance, can be used for indoor or outdoor installation, IP65.
Explosion-proof : After reviewing the explosion-proof safety performance of the national-level instrumental explosion-proof safety supervision and inspection station (Ne PSI), it is in line with GB3836.1-2000, GB3836.2-2000, GB3836.4-2000 standards The explosion -proof logo is EX DI BT 4 ~ T 6 (explosion -barrier) qualified certificate (essential safety type) qualified certificate GY B 05674 GY B 05673, EX IAI ICT 4 ~ T 6.

The installation of this type in explosion -proof occasions must be used to use the safety grid supporting parts certified by the explosion -proof inspection station to use the place where the explosive gas mixture below the IC level is below the on -site.

Instruction method of integrated temperature sensor instrument
No instructions : Only output and temperature with a linear standard current.
Digital header indicator : In addition to the output function, the instrument also has a LCD digital display, indicating the current temperature value of the test, and indicating the unit ℃.
Poems header indicator : In addition to the output function, the instrument indicates the current signal value of the output with the pointer table, and the indicator is 0 to 100%of the range.

Model specification classification

Deviation parameter
(1) Basic errors: ± 0.5%(PT100 sensor)
± 1.0%(using thermocouple sensor)
± 0.2%protocol settlement
(Basic error is the synthesis of sensor errors and conversion circuit errors)
(2) The additional error of the power supply change ≤0.025% /10V
(3) The additional knowledge of the change of the load resistance: 24V power supply, the load changed from 100 to 500, and the output change is <0.005%.

Time constant：<30s (stainless steel guard)

Integrated temperature sensor use environment
(1) Environmental temperature: -20 ~ 50 ℃
(2) Relative humidity: <90%(at 25 ° C)
(3) No corrosive atmosphere
Stomach size: The instrument shell is 145 × 95 × 114
Integrated temperature sensor schematic diagram

After the electrical signal with temperature changes is linearly circulated with temperature changes, after magnifying and voltage/current conversion, it becomes 4 ~ 20madc (0 ~ 10madc) current signal output corresponding to the temperature signal. Within the regulations of the instrument The output signal and the temperature change linearly.