RACK MOUNT CONTROLLER (RM2)
Where should I locate the RM2 Controller?
The RM2 Controller can be located in a Class 1, Division 2 area although it is most often found in a general purpose location such as a control room. NSM has a variety of rack mount cages available to house the RM2 assembly.
What monitoring devices can I connect to the RM2?
Any two NSM, 4-20 mA fire or toxic gas sensors can be connected directly to the RM2. The RM2 is also compatible, in any combination, with the Millennium Premium Combustible controller and LEL sensor to accommodate redundant display requirements. The RM2 can also interface with other, third-party 4-20 mA detectors.
Do I need any special hardware to communicate with the RM2?
A standard RS-232 to RS-485 modbus communication cable is required. NSM has a cable kit (RM2-COM-KIT) available for purchase. Consult the NSM Price List for pricing.
Do I need any special software to configure the RM2?
No! Standard RS-232 compatible terminal software, such as HyperTerminal-, is used to communicate with the RM2. Other configuration settings are done at the RM2 front panel and require no additional software.
How many external control devices can I connect to the RM2?
The RM2 has 5 relays-a common Fault/Failure relay as well as a Fault/Fire alarm and Low/High alarm relay for each channel-so two external devices.
What is the maximum separation distance between the RM2 and the sensor?
Net Safety recommends no more than 500 feet when using a minimum 18 AWG shielded copper instrument cable. Distances greater than 500 feet are possible by using lower gauge cable. Contact Net Safety for installations requiring distances over 500 feet.
Can I install the RM2 outdoors?
Unless the RM2 is housed in some form of weather-proof enclosure, the RM2 is not suitable for outdoor installations.
When should I buy an RM2?
The RM2 is an excellent choice when:
re-fitting of an existing product is required
event monitoring functionality is needed
multiple outputs are needed
a rack or wall mount controller installation is required
flexible hardware combinations and the ability to expand is important
Why should I buy from NSM?
Purchasing both field detectors/sensors and controllers from a single source is convenient and cost-effective. Ordering and shipping is simplified and after-sales support and repair is more efficient.
Is the RM2 UL or NFPA 72 compliant?
No! However, the RM2 is certified CSA and NRTL/C for hazardous locations and Factory Mutual (FM) certified to Class 3260 for fire alarm systems.
Can the RM2 provide RS-485 output using the RTU Modbus protocol to interface with other control systems?
An optional RS-485 output on the RM2 is available. Contact NSM for pricing and availability.
SOLAR SHIELD
How do I determine the size of solar array and number of batteries required?
Simply inform your Net Safety Representative of your site's daily load requirements, the specific latitude of site, the length of subnormal isolation periods experienced at the site, and the number of days of reserve power necessary to maintain the site. Your Net Safety Representative will be happy to perform the necessary calculations and provide you with a custom designed Solar Shield system.
Can I mix and match different types of detectors?
Only the SS2 is capable of handling more than one detector type. You can connect two different gas sensors, for instance an LEL and Toxic sensor, or you can connect a combination of flame detectors and gas sensors.
What happens if I need more than two channels?
Customers can connect more termination/controller boxes into the system in order to have more channels. For ease of installation, this should be stated at the initial order stage. This type of expansion is more difficult than general load/battery expansion.
How long does it take to install the Solar Shield?
Net Safety Installers can have your SS1 or SS2 installed in less than half a day.
Can I expand the Solar Shield system if I need more power later?
Absolutely! Additional batteries and solar panels can be connected to a previously installed system.
How many days of autonomy does the Solar Shield provide?
Net Safety custom designs a Solar Shield system based on the specific requirements of your site. The Solar Shield provides a minimum of 14 days autonomy.
Do I need to perform regular maintenance to ensure continuous operation? How often?
A regular maintenance schedule should be developed based on the environmental factors of each installation site. The solar panels will require cleaning to remove not only dirt and dust but also any ice or snow build up. As part of the regular fire/gas detector maintenance schedule, batteries should be checked to ensure tight connections.
What cables are included?
The detectors are pre-wired for you. There is a 20 ft quick connect cable between the controller and solar panel as well as a 10 ft quick connect cable between the controller and battery. An optional 50 ft power cable is available as well as optional battery interconnect cables to daisy-chain batteries.
What configuration options does the Solar Shield offer?
You have a choice of 12 or 24 V DC, single channel, dual channel, analog, analog & relay, or analog & digital RS 485 output.
Can I install the Solar Shield controller outdoors?
Yes! The Solar Shield is housed in a rugged and secure NEMA 3R enclosure suitable for indoor or outdoor installations. Mounting flanges are provided to allow enclosures to be securely bolted into place as well as pad lock latches for total security.
What mounting options are available for the Solar Shield?
The Solar Shield comes standard with flanges for wall mounting. An optional pole mount assembly is also available.
1. MILLENNIUM/GAS SHIELD 2 (GS2) GENERAL