N2KB NANO Fire Detection Extinguishing Control System User Manual
- June 9, 2024
- N2KB
Table of Contents
N2KB NANO Fire Detection Extinguishing Control System User Manual
INTRODUCTION
The NANO is designed as a stand-alone fire detection and extinguishant release
panel to be used in systems for e.g., electrical cabinets, CNC machines,
engine rooms, small areas, or with other equipment.
The NANO has successfully passed CE and FCC, EMC testing according to EN
50130, EN 61000, EN 55016, 47 CFR15-ICES-003, ANSI 63.4, IEC60945-pt11 and a
DNV marine type approval according the DNV Class Guideline
0339-2021,certificate TAA000037H.
The N2KB NANO is equipped with two activation techniques for the activation of
fire extinguishing systems.
The selection can be made using DIP switch 3. By default, the NANO is
programmed for the activation of electrical igniters intended for aerosol fire
extinguisher generators, with DIP switch 3 in the OFF position.
The activation of aerosol fire extinguisher units is actuated by means of a
current pulse of 1.3A for max 50ms.
DOCUMENT REVISION DETAILS
| Issue | Modification Detail | Author | Date |
|---|---|---|---|
| 1 | 1st publication document | CvT | 01 / 03 / 2023 |
IMPORTANT NOTES
This electrical igniter manual is an integral part of the NANO user manual
version 2.3 of March 1, 2023.
This document should be read thoroughly and understood before installation
and/or commissioning of the system is undertaken.
ELECTRICAL IGNITER
An aerosol generator is activated by an electrical igniter.
Mostly it is a bridge wire coated in a pyrotechnic composition.
Each brand of aerosol generator have it9s own type of igniter with different
specifications.
The parameters are, bridge resistance, no fire current, all fire current, all
fire time and voltage.
The igniters connected to the extinguishers output circuit need a high-power
current at ignition.
THE ETB
The ETB is specially developed for connecting aerosol extinguishers.
This terminal connection board is equipped with built-in security electronics,
which ensures that all igniters of the extinguishing units are activated.
Together with an end line switch, this option turns the NANO system into a
complete and reliable fire detection and extinguishing system.
The standard ETB is suitable for an extinguisher igniting actuator with a
maximum resistance of 2′. The ETB/H is suitable for an extinguisher igniting
actuator with a maximum resistance of 4′.
APPLICABLE IGNITERS
Based on the underlying technical data provided by the suppliers, a list has
been compiled of electrical igniters that are connectable on the NANO in
combination with an ETB.
It is important to acknowledge that this observation was made on March 1,
2021, and that, unknowingly, the technical specifications of the electrical
igniters may have changed or may even have been removed from the delivery
program of the relevant manufacturer since this date.
We cannot be held responsible for faults, errors or malfunctioning of a fire
alarm/extinguishing system caused by igniters other than those used during the
assessment.
NANO EXTINGUISHERS RELEASE TECHNOLOGY
The NANO has a very sophisticated extinguish release circuit.
The igniter output is a current source of 1,3 Amperes and generates a pulse of
max 50 milliseconds.
Normally a Voltage source is used for igniters, but a current source gives a
far better controlled power per igniter.
To determine how many extinguishing generators can be connected to the
extinguishing output of the NANO/ETB combination, a calculation has been made
based on the following assumptions.
A cable of 100 meter solid wire 2 x 1,5mm² with a cable resistance of 2,28 ohm
(2 x 100m)
WARRANTY
N2KB BV represents the NANO system and is free from material defects in
materials and workmanship.
Our warranty does not cover a NANO system which is damaged, misused, and/or
used contrary to the supplied operating manuals or which has been repaired or
altered by others.
The liability of N2KB BV is at all times limited to repair or, at N2KB BV9s
discretion, replacement of the NANO system.
N2KB BV shall not under any circumstances be liable for any indirect, special
or consequential damages such as, but not limited to, damage or loss of
property or equipment, cost of de-installation or reinstallation, cost of
transport or storage, loss of profits or revenue, cost of capital, cost of
purchased or replacement goods, or any claims by customers of the original
purchaser or third parties or any other similar loss or damage, whether
incurred directly or indirectly.
Remedies set forth herein to the original purchaser and all others shall not
exceed the price of the NANO system supplied.
This warranty is exclusive and expressly in lieu of all other warranties,
whether expressed or implied, including, without limitation, any warranties of
merchantability or fitness for a particular purpose.
CONNECTABLE IGNITER LIST
Wire cross-sectional area| 1,5| mm²|
---|---|---|---
Resistivity (Annelead copper = 1,71E-8)| 1,71E-08| Ohm/m
Cable length| 100| m
Total wire resistance| 2,28| Ohm ‘
| Stat-X| DSPA| Greenex| AF-X| Salgrom
Igniter resistance min.| Ohm ‘| 1,2| 0,4| 0,8| 1,3| 3
Igniter resistance max.| Ohm ‘| 1,8| 0,8| 0,9| 3,2| 4
Minimum ignition current| A| 0,5| 1,3| 1,3| 1| 0,5
Minimum ignition time| ms| 33| 10| 10| 10| 5
Cable length| m| 100| 100| 100| 100| 100
Max. nr. of ignitors with ETB standard| | 8| 10| 10|
Max. nr. of ignitors with ETB-H| Remark 1| | 6| 6
Max. nr. of ignitors without ETB| Remark 2| 6| 12| 12| 5| 5
REMARK 1 : For this calculation we assume a worst case scenario where all
but one igniter has become high impudent
REMARK 2 : NOT RECOMMENDED: Be aware that the ignition time is much
shorter without ETB protection, because the first igniter that goes high
impudent will immediately stop the current.
Outdated or replaced computers and electronics are valuable sources for
secondary raw materials if recycled.
Dealers of the NANO system must comply with local regulations for waste
separation applicable in the country where the supplier is located.
Questions concerning the information presented in this manual may be addressed
to your dealer.
For technical questions or support contact your dealer for further assistance.
Electrical Igniter Manual | NANO-EN | March 1, 2023, | version 1.0 page 4
References
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