Huakong Integrated Digital Display Temperature Transmitter PT100 Sensor PT1000

Description

1PC Huakong Integrated Digital Display Temperature Transmitter PT100 Sensor PT1000
[product brand] Huakong Industrial
[product model] HSTL-103
[Input signal] Thermal resistance PT100
[Output signal] two-wire system 4-20MA three-wire system 0-5V, 0-10V
[Temperature range can be customized] can be customized between -50~500 degrees [accuracy] 0.2% F
[Usage temperature] -25-85 °C (0-60 °C when integrated LCD meter)
[temperature effect] ≤ 0.05% / C [humidity] 5-95% RH
[Live display] no 31/2LED31/2LCD0-100% aliquot
[Display accuracy] Digital: 0.5 level [Protection level] lP54, IP65
[Load capacity] <600Q (rated load 250Q) [line length] can be customized, standard 1M line length
Use a small screwdriver to pry the removal hole so that the internal terminal mounting block is removed from the end cap on the Hessman plug.
Pull out the internal terminal mounting block after the mounting block is removed.
The selected shielded cable must first be threaded through the threaded hole of the Hessman plug cover, and the four mounting terminals on the upper part of the terminal mounting block are wired according to the wiring diagram.
The lead wire is two cores (the default current is two-wire system, the voltage is three-wire system), the tin foil paper is waterproof and black leather wire, and the temperature is 100°.
product description
Huakong series integrated temperature transmitter is a combination of temperature sensor and transmitter, which is -200° in a simpler way.
The temperature signal in the +400C range is converted into a two-wire 4~20mADC electrical signal for transmission to the display, regulator, recorder, DCS, etc., to achieve temperature measurement and control.
Two-wire 4~20mA DC output. The transmission distance is far.
Cold end, temperature drift, non-linear automatic compensation. High measurement accuracy and long-term stability.
The temperature module is internally filled with epoxy resin and is suitable for use in a variety of locations.
The integrated design has a simple and reasonable structure and can directly replace ordinary assembled thermocouples and thermal resistors.
Mechanical protection lP65.
With the thermocouple temperature change, the compensation wire can be avoided.
LCD, digital tube, pointer and other indication functions are convenient for on-site monitoring.
When the ambient temperature is >70 °C, the transmitter and the field display instrument can be installed in a separate (isolated) manner. If conditions are not allowed
The method of extending the length of the protective tube is permitted to achieve the purpose of protecting the temperature transmitter.
It can form an integrated field installation structure with thermocouples and thermal resistors, or it can be installed as a function module in the inspection equipment and on the instrument panel.
Siman integrated temperature transmitter. Commonly used are PT100/PT1000/K type thermocouples, output signal: PT100, output signals are: 4-20MA, 0-5V, 0-10V, PT1000 and K type thermocouple output signals are only two-wire 4-20MA, temperature range:
The PT100/PT1000 temperature range is selectable from -100 to 500 degrees, and the K-type thermocouple is selectable between 0-1300 degrees. The power supply is 12-24 VDC, and the thread size is the same as the thread depth.
Product maintenance and maintenance
Use of integrated temperature transmitters Note:
1. Wiring: The wiring of the safety spark circuit (input signal line) must be insulated with insulated or shielded wires and isolated from the non-safety spark circuit to avoid mutual contact.
2. Different types of temperature transmitters are wired according to the instructions. For the explosion-proof instrument with safety spark circuit, the wiring must not be connected incorrectly, and it is necessary to check carefully whether there is short circuit or wrong connection.
3. When using the temperature transmitter, pay special attention to the common type and the intrinsic safety type. The normal type cannot be installed in the danger zone, and the intrinsic safety type can be installed in the danger zone.
4. The line resistance of the input of the three-wire system of the RTD transmitter should be equal and within the same ambient temperature.
Maintenance knowledge of integrated temperature transmitter:
1. For the explosion-proof instrument, in principle, it is not allowed to disassemble the components of the safety spark circuit and exchange the instrument wiring. If it needs to be replaced, it should be carried out according to the explosion-proof requirements.
2. When checking regularly, in order to accurately read the data, connect a digital voltmeter between the output terminals for measurement, instead of removing the safety spark circuit.
3. After the instrument fails, it should be powered off for inspection. If no fault is detected, it must not be sent.
4. The temperature transmitter should be kept clean during operation.
Output signal: The output is a unified 4~20mA signal; Scope of application: It can be used with the system or other conventional instruments.
The SBW series temperature transmitter module is a 24V power supply, two-wire integrated transmitter. The product adopts imported integrated circuit to amplify the signal of the thermal resistor or thermocouple and convert it into 4-20mA output current or 0~5V output voltage. The armored transmitter can directly measure the temperature of the gas or liquid for low temperature range measurement.
Installation note
During installation, the integrated temperature transmitter insulation is deteriorated and the introduced error is insulated by the thermocouple. The dirt and salt slag of the protection tube and the cable plate cause the insulation between the thermocouple and the furnace wall to be poor. To be serious, this not only causes the loss of the thermoelectric potential but also introduces interference, and the resulting error can sometimes reach up to Baidu.
Error introduced by thermal inertia of integrated temperature transmitter
Since the thermal inertia of the thermocouple causes the indication value of the meter to lag behind the measured temperature, this effect is prominent when performing rapid measurement. Therefore, a thermocouple with a thinner hot electrode and a smaller diameter of the protective tube should be used as much as possible.
The protective tube can even be removed when the temperature measurement environment permits.
Due to the measurement lag, the amplitude of the temperature fluctuation detected by the thermocouple is smaller than the amplitude of the furnace temperature fluctuation.
In order to accurately measure the temperature, a thermocouple with a small time constant should be selected. The time constant is inversely proportional to the heat transfer coefficient, and is proportional to the diameter of the hot end of the thermocouple, the density of the material, and the specific heat. If the time constant is to be reduced, In addition to the thermal coefficient, an effective method is to minimize the size of the hot end.
Integral temperature transmitters are usually used in materials with good thermal conductivity, thin tube walls and small inner diameter protection sleeves. In temperature measurement, bare wire thermocouples without protective sleeves are used, but thermocouples are easily damaged. It should be corrected and replaced in time.
Quantity: 1pc
Warranty: 120 day
On Sep-26-19 at 23:46:23 PDT, seller added the following information: