Velleman-Kit K2649 Illustrated Assembly Manual Download | Manualshive

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THERMOSTAT WITH LCD-DISPLAY

K2649

ILLUSTRATED ASSEMBLY MANUAL

H2649IP-1

Total solder points: 166 + 116
Difficulty level:

beginner

1

2

3

4

5

advanced

Digital

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temper

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Summary of Contents for K2649

Page 1: ...THERMOSTAT WITH LCD DISPLAY K2649 ILLUSTRATED ASSEMBLY MANUAL H2649IP 1 Total solder points 166 116 Difficulty level beginner 1 2 3 4 5 advanced Digital readout of both set and actual temperature...

Page 2: ......

Page 3: ...both the hysteresis and the desired temperature this kit can also be used for a lot more applications than only regulating room temperature Features Wide measuring and regulating range 50 to 150 C 60...

Page 4: ...he eyes Needle nose pliers for bending leads or to hold components in place Small blade and Phillips screwdrivers A basic range is fine For some projects a basic multi meter is required or might be ha...

Page 5: ...nts are cone shaped and shiny 3 Trim excess leads as close as possible to the solder joint REMOVE THEM FROM THE TAPE ONE AT A TIME AXIAL COMPONENTS ARE TAPED IN THE CORRECT MOUNTING SEQUENCE You will...

Page 6: ...ity ZD CATHODE A POWER SUPPLY MODE P2649V D5 1N4148 1 Diode Watch the polarity D CATHODE D1 1N4007 D2 1N4007 D3 1N4007 D4 1N4007 3 Diodes Watch the polarity D CATHO DE R1 560 5 6 1 B R3 100K 1 0 4 B R...

Page 7: ...Mains J4 ES Economy switch J2 For heaters use the contacts C NO For coolers use the contacts C NC The connection side of the connectors must point to the PCB opening 12 Terminal blocks RV4 10K 9 Horiz...

Page 8: ...y C 16 Electrolytic Capacitor Watch the polarity J3 FC8 9 wire 19 Flat cable Small hysteresis If you desire a small hysteresis adjustable from 0 2 to 1 C or from 0 4 to 4 F then fit for R24 and R25 a...

Page 9: ...2 18K 1 8 3 B R19 4M7 4 7 5 B R30 47K 4 7 3 B R31 10K 1 0 3 B R33 22K 2 2 3 B Mount for R10 390 3 9 1 B for C OR 330 3 3 1 B for F 3 Resistors R Mount for R13 1M 1 0 5 B for C OR 150K 1 5 4 B for F Fo...

Page 10: ...correctly mounted If only one point is displayed then you have to turn the display fig 1 0 8 LCD display 25 16 34 39 40 38 37 36 35 29 30 27 28 26 7 2 1 5 4 3 6 12 9 8 11 10 14 13 15 22 24 23 21 19 18...

Page 11: ...the pcb to help you holding the display on the right height First solder only the pins at the four corners Verify the height and correct if necessary Then solder the remaining pins Be very careful for...

Page 12: ...12 S1 S500 11 Push button IC1 ICL7106 12 IC Watch the position of the notch Construction Insert the plastic spindle in trimmer RV1 as displayed 13 Axe...

Page 13: ...d DON T shorten the connection wires of the sensor unless you are not going to fit it directly onto the pcb in the future Solder two isolated wires 75 cm or 30 to the sensor see fig 3 0 Make use of a...

Page 14: ...sensor Fig 4 0 Heat the shrinking tube using a hair dryer or better still using a paint stripper Take care that everything is well covered Connect the whole to the place marked with R32 SENSOR The con...

Page 15: ...15 Attention The connecting order whit regard to the pcb edge must be the same as on the power supply module see fig 5 0 15 Flat cable P2649D P2649V Flat cable Fig 5 0...

Page 16: ...s kept at 0 C 32 F and after a few minutes the sensor will be at 0 C too Then adjust with RV2 until the display reads 00 0 32 F After zero adjustment the sensitivity of the meter has to be adjusted Pl...

Page 17: ...s range by using other values for R2 and R33 You can also experiment yourself in order to obtain an optimum adjusting range for your application Solder a 1M trimmer parallel to both R2 and R33 see fig...

Page 18: ...ch the output is switched on resp switched off Depending on the application a smaller or larger hysteresis may be desired to regulate the room tem perature for instance a small hysteresis is desirable...

Page 19: ...fore start with RV4 in the middle position and then search the ideal position for your application Suppressing inductive loads Should the operation of the thermostat get disturbed by the switching of...

Page 20: ...20 Mounting Spacers screws are not included 18 Mounting FIG 9 0 SENSOR FLAT CABLE...

Page 21: ...rectangular opening in the power supply module is used as a passage for the wiring to the mains input the relay output and the E S Economy Switch see fig 10 FIG 10 Mounting Relay output Economy switch...

Page 22: ...22 The display module can be mounted above the power supply module using spacers See fig 11 Mounting FIG 11...

Page 23: ...ways take into account that the mounting of the sensor determines the quality of the regulation the quicker it reacts upon the changing temperature the better In case of liquids this is not such a pro...

Page 24: ...24 19 PCB layout Display module PCB...

Page 25: ...25 PCB layout power module PCB...

Page 26: ...22 21 C4 1 26 R7 V2 V2 R8 T2 T14 IC1 LCD1 31 2 DIGIT LCD MODULE JC JF 1 40 39 28 32 30 11 27 V2 R19 R31 NC R5 C6 C7 R30 C8 C9 R11 RV3 R12 R13 C5 R10 R9 RV2 R32 R34 R33 R2 RV1 V2 R3 R17 R18 R4 A1 R15 R...

Page 27: ......

Page 28: ...s and typographical errors reserved Velleman Components nv H2649IP 2004 ED1 rev1 0 VELLEMAN Components NV Legen Heirweg 33 9890 Gavere Belgium Europe www velleman be www velleman kit com 5 4 1 0 3 2 9...

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