Temperature transmitter

Temperature transmitter

Overview of Temperature transmitter

SBW series thermocouple, thermal resistor temperature transmitter is field installation type temperature transmitter unit in DDZ-S series instruments. It' s of 2-wire system transmission ( Two wires are used as public transmission wire for power input and signal output) ，it transforms signal of industrial thermocouple & themal resistance into output signal of 4~20mA which is in linear relation with input signal or temperature signal..

The transmitter could be directly mounted inside junction box of thermocouple & thermal resistance to form an integral structure. As temperature - measuring instrument of new generation, it could be widely used in metallurgy, petroleum chemical, power Light industry, textile,foodstuff, national defense, and scientific research field, etc.

●Silica rubber sealing structure, shock & moisture - proof, suitable with bad environment

●Field installed inside junction box of thermocouple & thermal resistance, output signal is 4~20mA; it could save expensive cost on compensational wire and improve interference - resistant performance

during long -distance signal transmission process

●thermocouple temperature transmitter has automatic temperature compensation function at cold end. 

●High accuracy and lower power consumption, wide temperature range, stable and reliable

●Wide application, it could be installed on the spot with thermocouple or thermal resistance to form integral structure, or installed in testing device

●Smart temp transmitter can be equipped with ZBT communication equipment, a set of 386 or more advanced PC, to set model & scale number of transmitter, as well as temperature range.。

●Digital display type temp transmitter it can adjust the display direction of the transmitter according requirements

Main tech data of Temperature transmitter

Input: Thermocouple (K EJB S T N), Thermnal Resistance (Pt100, Cu100, Cu50) (3 wire System or 4 wire system)

Output : Output direct signal from 4 to 20mA within range, which is in linear with the milliolt signal input by thermocouple, or in linear with the resistance signal input by thermal resistor, or in linear with temperature signals.

lsolated temperature transmitter: the input is separated from output and separation voltage is 0.5Kv. It improves common mode interference . resisting performance and is more suitable for computer network.

Basic Eror:士0.5% FS

Wiring: 2 - wire system, 3 - wire system, 4- wire system

Display: 4 digits LCD of temperature on the spot, and displayed in in open circuit.

Power: The lowest voltage of transmitter is 12V, highest voltage is 35V, and the rated voltage is 24V.

Load: The limit load resistance is calculated as fllows: R1 (max), 50 Nmin-12) (24V when the load resistance in the range of 0-600∩choose to use) the rated load 250 

Normal working conditions:

a) Ambient temperature -25 °C ~80 °C (conventional type)  -20 °C ~70 C (the phenotype)

b) Relative humidity 5%~95% 

c) mechanical vibrationf S 50Hz, amplitude <0.15mm

d) the ambient air does not contain chromium, nickel plating, non- ferrous metals and other alloys from corrosion media.

Ambient temperature:≤0.05/ 1 °C

Model table of Temperature transmitter