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PT-238 JLW programmable control Unit The 64 step Programmable Control Unit. This Control Unit is best for control Oven and any type of heating/pumping device. Suitable for temperature Control Process. 64 Step programmable, each step can select time, PID type and rate. Internal Filter for noisy signal AC/DC45-240V worldwide voltage Over and Under limited Relay switch Output RS-232 connection ( software not included) 9 type preset PID control Type: Heating, cooling, stable, High temp, LOW temp, T,R,J,WRe3-WRe25,B,S,K,E, Pt100, Cu50, type Thermocoupler 0-75mV, 0-30mV, 0-5V,1-5V, 10V, 0-10mA,0=20mA, 4-20mA Voltage/Current Input 3,4 Relay 1 Contact ( AC220V/3A, DC24V 5A) 5,6 Relay 2 Contact ( AC220V/3A, Dc 24V5A) 10~11 SSR ( solid stage relay) output 22V/25mA Step 1 t-01=10, Sv01=25, (Sv02=100) C-01=0 Means : within 10 mins, start from 25 C heat up to 100C, Use PID type 1, which is a heating type PID , slot rate is 7.5C/mins Step 2 t-02=13, Sv02=100 C-02=1 Means: Remain temp stable at 100C for 13mins Means: active the J1 relay alarm output Step 4 t-04=15 Sv04=100 C-04=0 Means in 15mins, increase temperature to 250C, rate is 10C/mins, use group 1 PID setting. Means in 8 mins, drop the temperature from 250 down to 170, use the PID group 3. Means control halt and set the temp in 170C, usd PID group 2 Means release the Jl relay contact Base on above setting to the unit, the controller is up to 64 step programmable temperature/ Time setting, Finer temperature curve control can be set by adding intermediate step in shorter time. 1 x PT238 64 step programmable Control Unit For warranty parts and service: All purchased are final, will replace defective product only. Return package must be in the original packaging, everything must be in new condition. Missing part’s or anything in original contact will not qualify for any refund. Defective item can be exchanged within 7 days of receipt. Replacement and refunds will not be processed until the return item received. |