Single-point Gas Alarm Systems
NV-120Sx
Features
- Color LCD for gas concentration display and various settings
- Audio alarm (voice message) is available in four languages
*Only English and Japanese are available for on-screen languages.
- Improved operability with jog dial
- Optional backup power supply unit to provide emergency power in the event of power outage
*Max.7 days (diffusion type) or 2 days (extractive type) during intermittent gas monitoring and max.120 min. During continuous gas monitoring after power outage
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Specifications
| Model | NV-120Sx |
| Detection Principle | Galvanic cell |
| Target Gas | Oxygen |
| Power Voltage | AC type: 100 to 240 VAC±10% or DC type: 24 VDC (18 to 26.4 VDC) *1 |
| Power Consumption*2 | AC type Non-backup power type: Standard 2.0 VA (Max. 3.4 VA) Backup power type: Standard 2.1 VA (Max. 4.7 VA) DC type Non-backup power type: Standard 2.0 W (Max. 3.4 W) |
| External Outputs | ・Power output: 24 VDC ± 10% Max.0.3 A ・Signal output: 4-20 mA analog or 1-5 V *1 In the event of failure: ≤ 0.6 mA (for 4-20 mA type) and ≤ 0.25 V (for 1-5 V type) ・1st stage gas alarm contact: Dry, N.O. or N.C.*1 Max. load: 250 VAC 2 A, 30 VDC 2 A (resistive load) ・2nd stage gas alarm contact : Dry, N.O. or N.C.*1 Max. load: 250 VAC 2 A, 30 VDC 2 A (resistive load) ・Fault contact: Dry, N.O. or N.C.*1 Max. load: 250 VAC 2 A, 30 VDC 2 A (resistive load) ・Audio alarm contact: Dry, N.O. Max. load: 250 VAC 2 A, 30 VDC 2 A (resistive load) |
| Display | Color LCD with backlight |
| Status Indicator | Green POWER LED, red ALARM LED (1st stage gas alarm: flashes and 2nd stage gas alarm: flashes rapidly) and amber FAULT LED |
| Gas Alarm | ・1st stage gas alarm: ALARM LED flashes red + LCD turns orange + beeping + voice message “Gas alarm” ・2nd stage gas alarm: ALARM LED rapidly flashes red + LCD turns red + fast beeping + voice message “Gas alarm” |
| Fault Alarm Indication | FAULT LED lit amber + error code on display + fast beeping + voice message*3 |
| Compliance | RoHS directive (2011/65/EU) *4 |
| Color | Case and cover: DIC546 1/2 Backup battery unit: Munsell 10Y8.5/1 |
| Mass | Non-backup power type: Approx. 750 g Backup power type: Approx. 2.2 kg |
| Dimensions | Non-backup power type: W113 mm×D77 mm×H219 mm Backup power type: W113 mm×D115 mm×H234 mm |
| Operating Temperature | Non-backup power type: –10 to 50°C Backup power type: 0 to 40°C No rapid temperature change. |
| Operating Humidity | 0 to 90%RH No condensation. |
| Backup Power Type*5 | Without intermittent gas-monitoring mode: In the event of a power outage, the unit will continue continuous gas-monitoring for another 120 minutes or more. |
*1. Must be specified at the time of ordering.
*2. Consumption power of the connected gas detector is excluded.
*3. Voice message changes depending on the nature of the fault.
*4. None of the hazardous substances restricted by the RoHS directive is used in this product.
*5. Backup power type units are all AC type units.
*6. Only NV-120Ci and NV-120Cv models have intermittent gas-monitoring mode.
*7. Gas alarm accuracy is compromised during the intermittent gas-monitoring mode, since the sensor output becomes unstable during this mode, as a result, a gas alarm may be activated even though the concentration does not reach the gas alarm set value.
*Only New Cosmos-manufactured gas detector can be connected to this product.
*Specifications above may be subject to change without notice.
*N.O.: Normally open. *N.C.: Normally closed.
Connectable Detectors
Diffusion Type: KS-2O
Extractive type :PS-2OP, PS-4OP