XMTA-7000 intelligent temperature control regulator

Technical support and product inquiry hotline 0577 -62906628 / 62810616 Fax :0577 -62,767,956 Mobile: 18205877547 Mr.Huang Components Selection R1 ~ R4, R6 and R7 are selected 1/4W metal film resistors: R5 are selected 1/2W metal film resistors. C1 use monolithic capacitors; C2 selected voltage value of 450V CBB capacitor; C3 voltage is 16V aluminum electrolytic capacitors; C4 with aluminum electrolytic capacitors voltage is 25V. VD1 use 1N4001 type silicon rectifier diodes; VD2 ~ VD4 are made of 1N4148 silicon switching diodes. VS selects 1N4742 (1W, 12V)-type silicon Zener diode. VL choose φ5mm light-emitting diodes. UR selected 1A, 100V rectifier bridge pile. V selects S8050 or C8050, 3DG8050 silicon NPN transistor. IC selects CD4060 or CC4060 14-bit binary counter / divider IC. K selects 4098 12V DC relays. KM use coil voltage of 220V AC contactor, the contact current capacity should be based on the actual load power to choose. Power circuit by the capacitor C2 ~ C4, resistors R3 ~ R5, rectifier bridge pile UR, voltage regulator diode VS and power indicator LED VL. Timer circuit from counter / divider integrated circuit IC, capacitor C1, diode VD2 ~ VD4 and the resistors R1, R2, R6 components. Wherein R1, R2, C1, and the IC circuit clock oscillator circuit, the oscillation period (T) from the determined value of R2 and C1. Control the implementation of the circuit by the transistor V, resistor R7, diode VD1, relay K and AC contactor KM components. AC 220V voltage by C2 Buck, UR rectifier, VS regulator, R5 C3 limiting and filtering, relay K and IC provides 12V DC voltage, while the VL lit. IC power work, the clock oscillation signal generated by the oscillator and divider counting process, when the on-delay time (waiting time) end, IC's Q14 side (3 feet) high output, so that V conduction , K and KM pull the load (controlled electricity each set) power on the work. At the same time, IC began on regular working hours (working operating time) are counted, when the end of regular working hours, IC's Q14 terminal goes low, so that V cutoff, K and KM release, the load power; while IC internal counter is reset, the next timing cycle. Again and again, the load at the set time intermittently energized work. Adjusted R2, C1 or change the parameters of the IC's Q4 ~ Q14 output control connection, you can set the delay timer on-time and working time. According to the parameter values ??in the circuit, the delay time is turned 3h, regular working time is 20min.