About Icons
Inert Gas
Extinguishing SystemsPackage-Type Inert Gas Fire Extinguishing System
NEO-Tandem
Features
NEO-Tandem
NEO-Tandem is a compact IG-541 fire extinguishing system developed for small areas. The IG-541 fire extinguishing system uses the revolutionary IG-541 gaseous fire extinguishing agent, which allows people to breathe. Composed of atmospheric substances, IG-541 has an ozone depletion potential of zero, and with a relative gravity of 1.07, it is an excellent gaseous extinguishing agent that maintains a steady extinguishing effect even after being released. The IG-541 fire extinguishing system has been adopted in many countries around the world, attesting to its global acceptance and the universal trust placed on it. NEO-Tandem saves space and cost by integrating the outstanding features of the IG-541 fire extinguishing system into a single package.
- Safe for human beings
- There is no risk of asphyxiation from inhaling the gaseous agent. Also, it ensures good visibility during evacuations, and does not generate toxic gases through decomposition.
- Safe for the global environment
- IG-541 uses substances that are naturally present in the atmosphere.
- Safe for property
- There is no metal corrosion from gaseous agents, and no frost or condensation caused by evaporative cooling.
- Excellent extinguishing performance
- IG-541 has a relative gravity to air of 1.07 (standard relative gravity after release), making it difficult for the gas to escape outside the fire hazard area after being discharged, ensuring steady fire suppression.
- A fire extinguishing system that has been recognized around the world
- The IG-541 fire extinguishing system is a globally accepted system introduced in many countries around the world.
- Easy-to-understand display panel
- The graphic panel allows you to grasp the operation status at a glance.
- Buffers operation history for viewing
- Since the operation status at the time of a fire or fault is buffered in the main unit, the history can be easily accessed by connecting to a PC.
- Improved noise resistance
- The system’s noise resistance properties comply with international standards (IEC standards*).* IEC61000-6-2 immunity (noise immunity) standard for industrial environments
Specifications
| Approval No. | 109 (FESC-approved) | |||
|---|---|---|---|---|
| Product Name | Main Type for 1 Unit | Main Type for 2 Units | ||
| Model Code | NTH-A-I83-1(-CV) * | NTH-A-I83-2(-CV) * | ||
| Total System Weight | Approx. 305 kg | Approx. 460 kg | ||
| Extinguishing Agent Type | IG-541 | |||
| Extinguishing Agent Cylinder Type (Volume) | 83 L | |||
| Effective Discharge Volume (20°C) | 22.6 m³ | |||
| Extinguishing Agent Cylinder | Material: CrMo steel, etc.; Hydrostatic test pressure: 50 Mpa; Coating color: gray | |||
| Cylinder Valve | Approval No.: Yo-192 Model Code: IR-12 | |||
| Box Dimensions | W500× D400×H2,060 mm |
W700× D400×H2,060 mm |
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| Box Construction | Single, front opening (t=2.3 mm) | |||
| Box Coating | Coating Color: Oyster gray (C25-80A, semi-glossy) or designated color | |||
| Operating Temperature Range | 0°C to 40°C | |||
| Operating Humidity Range | 85%RH or less (with no condensation) | |||
| Voice Alarm System | AA-039 (FESC-approved) | |||
* If with a shut-off valve, model code has “-CV” added at the end
| Approval No. | 109 (FESC-approved) | |||
|---|---|---|---|---|
| Product Name | Subtype for 1 Unit | Subtype for 2 Units | ||
| Model Code | NTH-EX-I83-1 | NTH-EX-I83-1-SV | NTH-EX-I83-2 | NTH-EX-I83-2-SV |
| Activation Device | Without | With | Without | With |
| Interlocking Method with Main Type | Gas pressure interlock | Electric interlock | Gas pressure interlock | Electric interlock |
| Total System Weight | Approx. 270 kg |
Approx. 300 kg |
Approx. 425 kg |
Approx. 455 kg |
| Extinguishing Agent Type | IG-541 | |||
| Extinguishing Agent Cylinder Type (Volume) | 83 L | |||
| Effective Discharge Volume (20°C) | 22.6 m³ | |||
| Extinguishing Agent Cylinder | Material: CrMo steel, etc.; Hydrostatic test pressure: 50 Mpa; Coating color: gray | |||
| Cylinder Valve | Approval No.: Yo-192 Model Code: IR-12 | |||
| Box Dimensions | W500× D400×H2,060 mm |
W700× D400×H2,060 mm |
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| Box Construction | Single, front opening (t=2.3 mm) | |||
| Box Coating | Coating Color: Oyster gray (C25-80A, semi-glossy) or designated color | |||
| Operating Temperature Range | 0°C to 40°C | |||
| Operating Humidity Range | 85%RH or less (with no condensation) | |||
| Voice Alarm System | － | |||
Electrical Specifications, etc.
| Discharge Activation Method | Main type: Automatic/manual selector switching; Sub type is operated by main type | |||
|---|---|---|---|---|
| Detector Circuit | 2 lines, AND circuit | |||
| Voice Alarm System | 3-channel voice synthesis Confirmation number: AA-039 (*Refer to 3/3 in Specifications) | |||
| Delay Timer | Can be set between 0–99 seconds (standard setting: 20 seconds) | |||
| Monitor Functions | Indicator lamp flashing, buzzer sounds, fault relays [1] Detection of sensor open circuit [2] Detection of ground fault [3] Detection of manual discharge line short-circuit [4] Detection of battery power supply AC power shutoff [5] Voltmeter (displays voltage of battery power) [6] Battery test (checks of battery power voltage during normal times) |
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| Display Panel | Power indicator lamp System activation indicator lamp Auto indicator lamp Power failure indicator lamp Detector 1 activated indicator lamp Discharge indicator lamp Detector 1 disconnected indicator lamp Charging indicator lamp Detector 2 activated indicator lamp Shut-off valve open indicator lamp (*1) Detector 2 disconnected indicator lamp Pre-discharge indicator lamp Shut-off valve closed indicator lamp (*1) Electric ground fault indicator lamp Fire indicator lamp Manual indicator lamp Short-circuit indicator lamp Recovery switch Buzzer stop switch Automatic/manual selector switch Battery test switch Buzzer: Goes off in case of fire hazard, system activation, manual activation station or alarm door open, activation of detector 1 or 2, or fault Alarm door: Evacuation announcement is triggered when door is opened; the fire and pre-discharge indicator lamps light up Discharge push button: Pressing this button activates a delay timer, and the gas is released after the timer runs out |
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| Relay Contact | [1] Fire relay: Form C contact x 1 [2] Discharge relay: Form C contact x 1 [3] Automatic/manual relay: Form C contact x 1 [4] System activation relay: Form C contact x 1 [5] Fault relay: Form C contact x 1 [6] Shut-off valve closed relay: Form C contact x 1 [7] Machine stop relay: Form C contact x 3 [8] Detector 1 activation relay: Form A contact x 1 [9] Detector 2 activation relay: Form A contact x 1 [10] Power failure relay: Form A contact x 1 [11] Machine stop: Form C contact x 2 |
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| Contact Specifications | [1] – [7]: DC30 V, 1 A [8] – [10]: AC250 V, DC30 V, 1 A [11]: AC250 V, DC30 V, 2 A |
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| Input Signal | ||||
| Detector 1 Input | NITTAN photoelectric spot type smoke detector: 2KH3 Max. number of connections: 30 OKI photoelectric spot type smoke detector: HSS220EGD Max. number of connections: 20 (No restrictions on heat detectors as long as they are contact-type) |
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| Detector 2 Input | ||||
| Shutter Close Input | Shutter “closed” confirmation signal input (must be a non-voltage Form A contact input) | |||
| Output Signal | ||||
| Shutter Close Output | DC24 V/1 A (Protective fuse) | |||
| Discharge Signal Output | DC24 V/5 A (Protective fuse) | |||
| Speaker | Audio output of voice alarm system, up to 20 W | |||
| Solenoid Actuator | Model Code: R72 | |||
| Pilot Cylinder | Volume 1.0 L/Filled gas weight 0.65 kg | |||
| Circuit Voltage | DC24 V | |||
| Power Consumption | Max. 10 W (0.1 A for monitoring, 0.4 A for operation, excluding external devices) | |||
| Emergency Power Supply | Battery power supply system manufactured by Nippon Dry-Chemical (certified product) [1] Battery capacity: 6.5 Ah Power supply: AC100 V Model: EPTII06 [2] Battery capacity: 15 Ah Power supply: AC100 V Model: EPTII15 |
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