ScopeDome.com | 2015 |Slupsk | Poland 1

sky observatory

ScopeDome Thermostate

ver. 3.0

ver 1.1

ScopeDome.com | 2015 |Slupsk | Poland 2

Howitworks

ScopeDome thermostat is a microprocessor control relay device,

along with software allowing to maintain a constant temperature on

the basis of its measurement with built-in or external thermometer.

The measurement results are transferred via USB to a PC running

under Windows. In addition, together with the computer, the system

can work as PID controller, allowing for very precise maintaining the

desired temperature or simply control switching on and off of the

relay. Outputs system allows the use of heaters or other devices

powered by 12V DC or 230VAC. All thermostat settings are stored in

EPROM. The control software allows you to connect up to 256

thermostats for one computer.

S - S.IN S + USB

RELAY BIMETAL 230VAC 12/230V 12V DC

NC COM NO Bi.2 Bi.1 N2 N1 L1 L2 INP. Dc2 GND2 GND1 Dc1

+-

EXT. Thermometer

83.0 mm

59.0

mm

ScopeDome Thermostate

77.8 mm

Basicparameters- Maximum load of relay contacts must not exceed

10A.

- The main circuit board brought out all relay (NC /

COM / NO).

- The system has a built-in USB port optoelectronic

separation.

- 12V DC power input is protected against

reversed voltage polarity.

- Consumes a maximum of 50 mA (when the relay

is 'on' state).

Thethermostatsystemcanoperateinthreemodes

1. Autonomous (without connection to PC):

- switch on/off temperatures of the heaters are

set using the potentiometers

- by default the temperature for comparison is

read from an internal thermometer

- if you want to use the thermostat based on the

outside thermometer temperature, you can

program such operating mode when connected

to a computer through a USB port

- with a PC, you can also change the temperature

ranges using potentiometers

2. PC Control:

- in this mode, switching on/off temperatures of

the heaters are determined by the software

3. PC Manual:

- this mode is for manual control a status of the

relay

4.PID Heater:

- after calibration allows to maintain the

temperature with an accuracy of 0.05 Celsius

53.5

mm

PCBdimensions

ScopeDome.com | 2015 |Slupsk | Poland 3

Inputs,outputsandcontrolelements

USB portoutside thermometer

input (Ic2 bus)

switch on

the temperature relay

potentiometer

switch offthe temperature relay potentiometer

programmer port

main fuse 15A

LED current relay state

indicators

COM/NC/NO

relay output

Main power

12V DC

12V DC / 230 VAC

heater switch

230 VAC power

for Heateradditiona thermistor input

(protecting the heater)

internal

thermometer

ScopeDome.com | 2015 |Slupsk | Poland 4

S - S.IN S + USB

RELAY BIMETAL 230VAC 12/230V 12V DC

NC COM NO Bi.2 Bi.1 N2 N1 L1 L2 INP. Dc2 GND2 GND1 Dc1

EXT. Thermometer

ScopeDome Thermostate

Wiringdiagramof12VDCheater

12V DC Heater

Bi

+-

+-12V DC 10A

PCB and Heater main power

S - S.IN S + USB

RELAY BIMETAL 230VAC 12/230V 12V DC

NC COM NO Bi.2 Bi.1 N2 N1 L1 L2 INP. Dc2 GND2 GND1 Dc1

EXT. Thermometer

ScopeDome Thermostate

Wiringdiagramof230VACheater

230V AC Heater

Bi

+-

+-12V DC 50 mA

PCB only power

ShortCut

ShortCut

N L

230V AC Heater power

ConnectinganexternalScopeDomethermometer(PIDmode)

S - S.IN S +

EXT. Thermometer

Bro

wn

Wh

ite

BIMETAL

Bi.2 Bi.1

Optionaljumperinsteadofbimetalfortheheateroverheatingprotection

ScopeDome.com | 2015 |Slupsk | Poland 5

PCBscheme

5V

IN

GND

OUT

IC178M05

GND

T1BC847

D2

L4148

12V

GND

12V

R1

4.7k

C2

220uF/25V

C1

470uF/25VC3

100nF/25V

C4

100nF/25V

VR2?

PR1

10k

PD

.5 (

T1

)9

PD

.6 (

AIN

0)

10

PD

.7 (

AIN

1)

11

PB

.0 (

ICP

1)

12

PB

.4 (

MIS

O)

16

PB

.3 (

MO

SI)

15

PB

.2 (

SS

/OC

1B

)1

4

PB

.1 (

OC

1A

)1

3

(RE

SE

T)

PC

.62

9

(RX

D)

PD

.03

0

(TX

D)

PD

.13

1

(IN

T0

) P

D.2

32

(AD

C5

) P

C.5

28

PD.3 (INT1)1

PD.4 (XCK)2

VCC4

GND3

PB.6 (XTAL1)7

PB.7 (XTAL2)8

(AD

C4

) P

C.4

27

(AD

C3

) P

C.3

26

(AD

C2

) P

C.2

25

(ADC1) PC.124

(ADC0) PC.023

AREF20

AVCC18

(SCK) PB.517

GND5

VCC6

ADC619

GND21

ADC722

IC4

ATMEGA88_TQFP

C5

100nF/25V

GNDGND

5V

PR2

10k

C6

100nF/25V

GNDGND

5V

GND

5V

GND

5V

GND

5V

5V

GND

R24.7k

C9100nF/25V

GND

D+19

GP214

GP6/RxLED6

OSC23

OSC12

VDD1

TXD10

RXD12

RESET4

RTS11

CTS13

GP7/TxLED5

VUSB17

VSS20

GP1/USBCFG15

GP0/SSPND16

D-18

GP57

GP48

GP39

IC2

MCP2200-I/SSC14470nF/16V

C11100nF/25V

GND_USB

GND_USB

GND_USB

Q112MHz

C12

22pFC13

22pF GND_USB

LED2

G

LED1

RC10100nF/25V

GND_USB

GND_USB TXD

D1

SM4007

12V/230V

33

55

44

L1

2L

21

REL1

RM85-2011-35-1012

12VDC

OUTPUT

230VAC

5V

GND

VDD

DATAIC5

INT.SENS.

1WireB

5V

Q2

11.0592MHz

R1010k

R6

330R

R7

330R

RXD

RESET

5V

SCK

MISO

MOSI

RELAY

EXT.SENS.

5V

GND

1WireA

TX

D

RX

D

BIMETAL

1W

ire

A

1W

ire

B

GND

R9

330R

R8

330R

RED_EXT

GREEN_INT

C7100nF/25V

C8

100nF/25V

C15

1uF/10V

GND GND GND

VR1?

C16 ?

R4R

RE

LA

Y

C17?

R5R

FB1

BLM21PG221SN1D

F1

14A

IC3

ADUM1201ARZ

GND

5V

GND_USB

MOSI

VCC

RSTGND

SCK

MISO

CON8 PROG

RE

D_

EX

T

GR

EE

N_

INT

NO

NC

DC1

DC1

GND1

GND2

GND

DC2

L2

L1

NO

NC

Bi.2

Bi.1

NO

NC

GND

5V

1WireB1WireB

GND

5V

N2

N1

D+3

D-2

VBus1

GND4

CON7

USB-B-G-SMD

GND

COMM.

Bi.1

Bi.2

L

N

OUTPUT VOLTAGE SELECTION

POWER SUPPLY FOR 12VDC OUTPUTMODE

230V AC FOR 230VAC OUTPUT MODE

RELAY OUTPUTS

BIMETAL CONNECTOR

EXTERNAL SENSOR CONNECTOR

12V DC MODE:

- SHORT CIRCUIT ’INP.’ AND ’DC2’

INP.

- HEATER CONNECTED TO ’GND2’ AND ’NO’

230V AC MODE:

- SHORT CIRCUIT ’INP.’ AND ’L2’

- HEATER CONNECTED TO ’N2’ AND ’NO’

- POWER SUPPLY 12V DC CONNECTED TO "DC1" AND ’GND1’

- POWER SUPPLY 12V DC CONNECTED TO "DC1" AND ’GND1’

- HEATER POWER SUPPLY CONNECTED TO ’L1’ AND ’N1’

TEMP.ON

TEMP.OFF

R34.7k

5V

COMM.

VUSB

VUSB

LED4

G

LED3

R

BIMETAL:

- WHEN NO BIMETAL SHORT CIRCUIT Bi.1 AND Bi.2

System Requirements: - Windows XP, 7, 8, 10 (32 or 64 bit) - Dot.Net 4.0 - PL2303_Prolific_DriverInstaller_v1_11_0

Before installing the thermostat control software should install the Prolific USB port driver.

Installingsoftware

ScopeDome.com | 2015 |Slupsk | Poland 6

DriverScreenShots