WNK105 Temperature Transmitter
WNK105 is a 2-wire, smart temperature transmitter which can be programmed by DIP switch and Can by PC progra mmed. It has measurement input for various RTD signals and converts this signal into 4-20 ma (2-wire) standard current signal after linear processing; a special signal can be set in advance while the sensor is burnout or short. It is often installed into the junction box of temperature sensor's head, or matched with mounting bracket on standard DIN guide rail, Round and striped design for the mounting hole can meet different requirements for the junction box.
Measurement range can be easily adjust through DIP switch using a small screw driver, no need for power supply, or accessing one resistance box ,signal generator to the input terminal;regardless of being matched with temperature sensor or used for field-mounted, it all can realize real-time adjustment, which can greatly shorten the time of adjustment, moreover lower the difficult of adjustment ;with different position of DIP switch we can see clearly the present measuring range. Its remarkable feature: Visual range easily can be understood, reduce the error probability when adjust the measurement.
It adopts anti-surge function and anti-pulse circuit design. It possesses anti-function function. Index of anti-surge test reaches five times(±4000V) continuously does harmless to products, protecting connecting device from damage. Input terminal and output terminal all have anti-pulse(± 000V) 4 ability. This product can avoid perfectly the possible damage from inductive thunder or inner high power device start or stop, circuit fault, cutting action, frequency conversion equipment running and electric welding machine working.
This series of products using compact structure design can be easily installed; The ultra-low power consumption 'design for internal circuits greatly reduces the temperature drift generated by components dissipating heat when instruments are working ,improves the product's long term stability, and also prolongs using life;meanwhile configurated measurement range increases the accuracy of the instrument ; the range of ambient is -40...+85ºC which can ensure the instrument in poor conditions to work properly.
Parameter
Input type:RTD Pt100, Cu50, Pt1000
Range: -200...+850ºC
Convert accuracy:≤0.2% or 0.4K
Output:4...20mA(2-Wire)
Alarm signal Sensor
fault (Open circuit or short circuit), Output drops to ≤3.6mA or Output rises to ≥21.5mA
Max-load:(Vsupply -9V) / 0.025A (Output
Current) Limit current:≤25mA
Response time:1s
Power supply:9...30VDC
Anti-surge:± ≤ 4000V ( 5 times)
Anti-Pulse:±4000V Radio
frequency interference: >10V/m (80MHz... 1000MHz)
Ambient:-40...+85ºC
Temperature drift:0.008% FS / 1ºC
Long term stability: 0.1ºC /year or 0.05% / year
Our Company:
Audited Supplier 
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