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NOVA HELIX single-channel receiver  

pocket installation guide

1. Introduction

2. Important safety instructions

3. General description

HELIX

 is a range of single- and multichannel radio receivers incorporating 

secure code-hopping technology.  The 

HELIX

 system offers both link 

and master learning capabilities to provide the user with the ultimate in 
usability and security and the technology inherent in all 

HELIX 

receivers 

ensures that the functionality goes well beyond the scope of standard 
receivers, literally putting unsurpassed convenience at the user’s fingertips.  
In addition, the system supports backward compatibility with the NOVA 

range of transmitters, meaning that there is no need to purchase additional 

equipment if presently making use of NOVA.

1. 

All installation, repair, and service work to this product must be done by 
a suitably qualified person.

2. 

Do not in any way modify the components of the system.

3.  Do not install this product near sensitive electrical components. 
4.  Do not install the equipment in an explosive atmosphere: the presence 

of flammable gas or fumes is a serious danger to safety.

5. 

Do not leave packing materials (plastic, polystyrene, etc.) within reach 

of children as such materials are potential sources of danger.

6. 

Dispose of all waste products like packing materials, according to local 

regulations.

7. 

Centurion Systems does not accept any liability caused by improper 
use of the product, or for use other than that for which the automated 
system was intended.

8. 

This product was designed and built strictly for the use indicated in 
this documentation. Any other use, not expressly indicated here, could 
compromise the service life/operation of the product and/or be a source 

of danger.

Anything not expressly specified in these instructions is not permitted
Please do not proceed with the installation until you have read and fully 
understand the safety instructions included in your product packaging. The 
safety instructions are also available on www.centsys.com, and may also be 
obtained by contacting Centurion Systems on +27 860 236 887 (SA only).

The operation manual describes the operation of the 

NOVA HELIX

 receivers.

1.  The 

NOVA

 

HELIX 

functionality allows for both “Master” learning and 

“Link” learning. Link Learning is the learning process associated with 
fitting a link to the J1 jumper on the receiver to learn buttons into 
memory. Master Learning, by contrast, uses a master button to place 
the receiver in Learn Mode (no links required) remotely.

2. 

All receivers support the ability to disable the function jumpers, J1 and 
J2 for additional security.

3. 

All receivers support SmartSwitch II interfacing capability.

4. 

All receivers support the new timed Autolearn feature.

1.  Remove the cover from the en-

closure using a flat screwdriver.

2.  Remove the cover and unclip 

the circuit board from the 

retaining clips. 

3. 

Mark position of the unit 

against the mounting surface.

4. 

Using a 5mm masonry bit, drill 

a hole into mounting surface.

5. 

Mount the unit using suitable 

fasteners.

6. 

Use a 6mm drill bit to open the 
required cable entry hole.

7. 

Fix the cable to the wall using 
cable saddles. 

8. 

Seal all the holes with silicone 

sealant.

9. 

Re-insert the circuit board and 

ensure that the retaining clips 
are holding it in place.

1.  Terminals
2.  Buzzer
3. 

Jumpers

4.  Relay
5. 

Antenna

4. Technical specifications

5. Product identification

6. Mounting the receiver

1

2

3

Centurion Systems (Pty) Ltd 

www.centsys.com

Call Centurion Systems (Pty) Ltd 

.

 South Africa

Head Office: +27 11 699 2400

Call Technical Support: +27 11 699 2481

from 07h00 to 18h00 (UTC+2)

E&OE Centurion Systems (Pty) Ltd reserves 

the right to change any product without prior notice

All product and brand names in this document that are accompanied by 

the ® symbol are registered trademarks in South Africa and/or 

other countries, in favour of Centurion Systems (Pty) Ltd, South Africa.

The CENTURION and CENTSYS logos, all product and brand names in 

this document that are accompanied by the TM symbol are trademarks 

of Centurion Systems (Pty) Ltd, in South Africa and other territories; 

all rights are reserved. 

We invite you to contact us for further details.

Connect with us on:

facebook.com/CenturionSystems

YouTube.com/CenturionSystems

@askCenturion

Subscribe to the newsletter: www.CentSys.com/Subscribe

www.centsys.com

SAP code: DOC1213D0501 

DOC num: 1213.D.05.0001

Technical Data

Single-channel Receiver

Operating frequency

433.92MHz

Supply voltage

12V – 24V DC

Quiescent current @ 12V DC

11mA

Maximum current @ 12V DC

40mA

Operating temperature

-15°C - 50°C

Humidity

0 – 90% (non-condensing)

Sensitivity

-115dB

Self-learning memory

62 buttons

Receiver enclosure

UV stabilised ABS

Single-channel receiver

Single-channel receiver

5

4

Cover

Cover

Drill bit

Cable 

saddle

Power supply

11V-30V DC 

only

COM
Normally-closed
Normally-open

Flat screw-

driver

Cable  

entry 

hole

7. Learning the First Master

8. Learning Additional Master Buttons

1. 

 To learn the first transmitter 
button into the receiver, the 

receiver transmitter memory 

as well as the channel 

compartment related to the 

function being 

learnt, must 

1.   

Press and hold the button that presently activates the device in ques

-

tion, for between 10 and 20 seconds.  For example, if you want to 

add another transmitter to your garage door motor, press and hold 

the button that presently activates it.  After 10 seconds, the receiver 
will provide a long beep to indicate that it has entered the Learn Mode 
window. The receiver will stay in Learn Mode, for a particular channel, 
for a period of 10 seconds, failing any additional button presses.  While 
in Learn Mode the LED on the receiver will remain on.

2. 

 Press and hold any remote buttons you wish to learn into the receiver, 

be blank. A channel compartment is a memory space that stores all the 
transmitter buttons that activate the functionality associated with the 
channel (for example activating a gate motor).

2. 

Press and hold a new transmitter button until a double beep is heard, 
which will indicate that the button has been successfully learned as a 
master button. The channel functionality will also activate.  This button 
is said to master the channel that has been selected for learning.

3. 

The button can be released once the double beep has been heard (ap

-

proximately 5 seconds after the button has been pressed).

J1

J2

Any additional remotes learned into the receiver using this 
method will automatically be granted master privileges. To 
demaster a button, please follow the steps in section 11.

r e c e i v e r

for a minimum of three seconds, after which a 

 

double-beep will indicate successful learning.

3. 

Any button that is pressed while the receiver is in Learn Mode will 
extend Learn Mode by an additional 10 seconds from the time the 
button is released.

4. 

If no additional buttons are pressed within the 10 seconds learning 
period, the receiver will automatically exit Learn Mode.  The exit is 
signalled by an extended single beep. 

5. 

The Status LED also switches off and resumes its responsibilities in 

normal mode.

9. Demastering Buttons

When a HELIX system is commissioned, all buttons learnt into the receiver 

are granted master privileges for that receiver.  From a security perspective, 

this is not always desirable.  To overcome the potential security issue, the 
system has the ability to ‘demaster’ remote buttons.

1. 

Press and hold the master button that is associated with the same 
functionality as the buttons that need to be demastered.  The master 
button must be pressed for between 20 and 30 seconds.

2. 

After a long double-beep indicates that 20 seconds have elapsed, 
release the button.  Ignore the single beep at 10 seconds.

3. 

The receiver will remain in Demastering Mode for a period of 10 
seconds failing any additional button presses.

4. 

Press and hold the button you wish to demaster for a minimum of three 

seconds.

5. 

Any transmitter button which is pressed will be acknowledged with a 
short beep.  

6. 

A short triple-beep acknowledges the demastering operation, but the 
button is only demastered once it is released.

7. 

If no additional buttons are pressed within the 10 seconds Demastering 
Period, the receiver will automatically exit demaster mode.  This exit 
is signalled by an extended single beep.  The Status LED also stops 
flashing and resumes its responsibilities in normal mode. 

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