BWY (WTYK)-802A, 803A, 804-type transformers temperature controller composite sensor technology, indicating that the meter bulb at the same time promoting the elastic element can be simultaneously output Pt100 RTD signal, this signal can be remote to a few hundred meters away control room, through the XMT series digital temperature controller simultaneously display and control transformer oil temperature. Can also be XMT series digital temperature controller, the Pt100 RTD signals into direct current with computer networking standard signal (0 ~ 5V, 1 ~ 5V, 4 ~ 20mA) output. Junction box using an external user wiring. 


 Main technical parameters: 
 1, BWY-803A (TH) transformer temperature indicating controllers 
 ⑴ working conditions: ambient temperature -40 ~ 55 ℃; relative humidity <95% 
 ⑵ measuring range: 0 ~ 100 ℃ 0 ~ 120 ℃ (normal products can be 0 ~ 100 ℃); Accuracy: 1.5 
 ⑶ control switch: three groups of adjustable switches; setting error: ± 3 ℃; switching difference: 6 ± 2 ℃ 
 Standard set-point: K1 = 55 ℃; K2 = 65 ℃ (802 no); K3 = 80 ℃ 
 Contact Power: AC: 220V; 3A, DC: 220V; 50W 
 ⑷ output signal: Pt100 RTD signal output 
 2, BWY-803B (TH) transformer temperature indicating controllers 
 (1) - (3) with a 
 ⑷ output signal: 4-20mA current output signal (with digital temperature display meter XMT) 
 ⑸ lead (shielded cable) resistance: less than 600Ω load resistance. (Sampling resistance) 
 ⑹ Power: AC: 220V ± 10%; Frequency: 50 ~ 60Hz 
 3, XMT series digital temperature indicator 
 ⑴ instrument mouth shape and size of installation: 160 * 80 (152 +1 mm × 76 +1 mm) 

 ⑵ Working conditions: Temperature :0-50 ℃; Relative humidity: <85% 
 ⑶ display range :0-100 (120) ℃; Accuracy: 1.0; 0.5 
 ⑷ lead resistance: should be less than 10Ω, and the difference between the three lead resistance ≤ 0.1Ω 
 ⑸ input signal: Pt100 RTD signal. 
 ⑹ output signal: 4-20mA output and both 0-5V signal 
 ⑺ Power: AC: 220V ± 10%; Frequency: 50 ~ 60Hz 
 Design and Selection 
 Primary purpose of supporting components Model No. 
 1 BWY-803A (TH) ⑴ measuring transformer top oil temperature, when the temperature exceeds a set value starts cooling system, an alarm signal. 
 ⑵ Pt100 thermal resistance while the output signal. 
 2 BWY-803A (TH) / 
 XMT ⑴ with 1 - ⑴ 
 ⑵ remote monitoring transformer oil can, and can also output 4-20mA or 0-5V signal input into the computer. XMT 
 3 BWY-803B (804) (TH) ⑴ with a 
 ⑵ output 4-20mA current signal (typically the normal use of 2 products) 

 Instrument features: 
 The company's BWY-803 □ (TH) series transformer temperature indicating controller improved instrumentation, increased computer interface, a model to achieve a single, full-featured design, so customers in the design, procurement, storage, commissioning, installation easier and safer. To meet different customer needs