Single-point Gas Alarm Systems NV-120Cv / NV-120Ci

Model

NV-120Cv / NV-120Ci

Target Gas

Combustible gas

Detection Principle

Combustion

Display

Color LCD with backlight

Compact Single-point Gas Alarm Systems for Combustible gas.

Data Sheet

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.

Specifications

Model	NV-120Cv / NV-120Ci
Detection Principle	Combustion
Target Gas	Combustible gas
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*1 and 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. With intermittent gas-monitoring mode*6 and 7: In the event of a power outage, the unit will continue continuous gas-monitoring for another 120 minutes, followed by intermittent monitoring (10 seconds each at 15-minute intervals). The intermittent monitoring will last for max. 7 days when connected to diffusion type gas detector and max. 2 days when connected to extractive type.

*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.