Velleman K6001 Manuale utente

TEMPERATURE SENSOR

K6001

ILLUSTRATED ASSEMBLY MANUAL H6001IP-2

Total solder points: 71

Difficulty level: beginner 12345 advanced

ForusewithourK6000or

K6002kits.

This kit has been developed especially to be combined with our K6000 or K6002 in order to create a tem-

perature regulating and temperature control system. Combined with the K6000 kit, a completely programma-

ble thermostat can be assembled. The use of a separate sensor offers the advantage of making the distance

between the controller and the sensor irrelevant.

Specifications:

 Temperature range of the transmitter : -40°C to 150°C.

 Pulse width modulation : 200µs / °C.

 Generated pulse width :

- at –40°C : 2ms (+/- 500µs adjustable)

- at 150°C : 40ms (+/- 2500µs adjustable)

 Linearity from –10°C to 50°C : better than 0,5%.

 Full scale : better than 2%.

 Tested up to 50m (distance between sensor and controller)

 Output : 15mA current loop

 Supply voltage : 12VDC (+/- 2V) / 20mA Max.

 PCB dimensions: 45 x 47mm (1.8" x 1.9")

Features & Specifications

Assembly hints

1. Assembly (Skipping this can lead to troubles ! )

Ok, so we have your attention. These hints will help you to make this project successful. Read them carefully.

1.1 Make sure you have the right tools:

• A good quality soldering iron (25-40W) with a small tip.

• Wipe it often on a wet sponge or cloth, to keep it clean; then apply solder to the tip, to give it a wet look. This is called ‘thinning’ and will

protectthe tip, and enables youto makegoodconnections. Whensolder rollsoff the tip,it needs cleaning.

• Thin raisin-core solder. Do not use any flux or grease.

• A diagonal cutter to trim excess wires. To avoid injury when cutting excess leads, hold the lead so they

cannot fly towards the 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 handy

1.2 Assembly Hints :

⇒ Make sure the skill level matches your experience, to avoid disappointments.

⇒ Follow the instructions carefully. Read and understand the entire step before you perform each operation.

⇒ Perform the assembly in the correct order as stated in this manual

⇒ Position all parts on the PCB (Printed Circuit Board) as shown on the drawings.

⇒ Values on the circuit diagram are subject to changes.

⇒ Values in this assembly guide are correct*

⇒ Use the check-boxes to mark your progress.

⇒ Please read the included information on safety and customer service

* Typographical inaccuracies excluded. Always look for possible last minute manual updates, indicated as ‘NOTE’ on a separate leaflet.

Assembly hints

1.3 Soldering Hints :

1- Mount the component against the PCB surface and carefully solder the leads

2- Make sure the solder joints 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 find the colour code for the resistances and the LEDs in the HALG

(general manual) and on our website: http://www.velleman.be/common/service.aspx

 R1 : 240K (2 - 4 - 0 - 3 - 1)

 R3 : 3K (3 - 0 - 0 - 1 - 1)

 R4 : 4K7 (4 - 7 - 0 - 1 - 1)

 R5 : 10K (1 - 0 - 0 - 2 - 1)

 R6 : 1K8 (1- 8 - 0 - 1 - 1)

1. Metal film resistors

R...

Construction

 D1 : 1N4007

4. Diode. Watch the polarity !

 C1 : 470pF (471)

 C2 : 470pF (471)

2. Capacitors.

C...

CATHODE D...

 IC1 : 8p

 IC2 : 16p

3. IC socket. Watch the

position of the notch!

 R2 : 18K (1 - 8 - 0 - 2 - 1)

 R7 : 1K8 (1 - 8 - 0 - 1 - 1)

 Attention : because one of the

connections of both R2 and R7

is a measuring point, it is advis-

able to take care that the body of

the resistors is on the largest

circle of the pcb overprint.

5. Metal film resistors

R...

 R8 : 560 (5 - 6 - 1 - B)

6. Resistor

R...

Construction

 C3 : 470nF (µ47)

8. Capacitor.

 RV1 : 1K (OFFSET)

 RV2 : 200K (ZERO)

 RV3 : 5K (GAIN)

Offset : Zero-setting of the sensor.

Zero : Calibration at zero degrees.

Gain : Maximum temperature

calibration.

7. Multiturn trimmers

RV...

 C4 : 10µF

 C5 : 10µF

 C6 : 10µF

 C7 : 220µF

10. Electrolytic Capacitors.

Watch the polarity !

C...

 J1 : 2p + 3p

9. Terminal block connectors

 IC1 : TLV721 or eq.

 IC2 : 3524 or eq.

11. IC’s. Watch the position

of the notch!

Preparing the sensor

 Cut two 5cm pieces of the supplied copper wire (fig. 1.1). Using a knife, remove the varnish of both

pieces of wire over some 3mm from the ends and tin the ends (fig. 1.1)

 Cut the connections of the KTY11, KTY81-22 sensor or eq. at 3mm (fig. 1.2)

 Solder both copper wires to the sensor (fig. 1.3)

12. Preparing the sensor

Fig. 1.1

Fig. 1.3

Fig. 1.2

 Cut off a piece of shrinking tube with a length equal to 5cm

 Slide the shrinking tube over the copper wires and OVER the sensor (fig. 1.4)

 Heat the shrinking tube using a hair dryer or, better still, using a paint stripper.

 Connect the transmitter (type KTY11, KTY81-22 or equivalent) with the points SENSOR of the pcb, using

a piece of screened wire (+/- 50cm). The polarity is of no importance.

Fig. 1.4

Preparing the sensor

 IMPORTANT : First have the circuit "warmed up" for about 10 minutes before starting adjusting!

 Connect the transmitter (type KTY11, KTY81-22 or equivalent) with the points SENSOR of the pcb, us-

ing a piece of screened wire (+/- 50cm). The polarity is of no importance.

 Connect a DIGITAL measuring apparatus between the two connection wires of R2 and R7.

 Connect 12VDC to the points +VS and -VS.

REMARK : Be careful to not touch the circuit with your hands while adjusting it, because this could cause

noise at its output, and consequently a very unstable read out.

 Fill a glass with ice cubes and let them melt a little until you get ice-water.

 Plunge the transmitter into the melting ice-water (0°C). Take care that the connection wires of the trans-

mitter do not touch the water.

 Adjust the OFFSET trimming potentiometer RV1, so that the meter indicates 0V (possibly select a more

sensitive measuring range) and wait until the indication becomes stable.

 THIS ADJUSTMENT IS VERY IMPORTANT, SO CARRY IT OUT VERY CAREFULLY!

Adjustment & use

13. Adjustment & use

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