Features
Specifications
(NV-500: LPG Gas Alarm Panel)
Model | NV-500 |
Sensor Type | Catalytic |
Target Gas | LPG / Methane / Gasoline |
Display Range | 0-100%LEL |
Number of Indicator Unit | Up to 12 units 2/4/6/8/10/12 points type (2-point monitoring method per unit) |
Gas Concentration Display | ・LCD bar graph meter (53 dots x 2 rows) ・Direct reading scale for alarm set value and gas concentration ・Backlight ・Peak value hold when alarm occurs, release by reset |
Alarm Set Value Display | |
Backlight Peak Hold Function when Alarm Occurs | |
Alarm Set Value/Setting Value Change | 24%LEL or 16%LEL![]() ![]() |
Alarm Indication | 1st alarm |
Alarm Accuracy | Alarm set value ±25% or less (under the same conditions) |
Alarm Delay | Within 30 seconds at 1.6 times the alarm set value (excluding piping delay for suction type) |
Alarm Display |
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Alarm Sound |
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External Outputs |
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Alarm Delay | Selectable with dip switch (fixed at 10 seconds) |
Power Supply | AC Type : AC100-240V±10% DC type : DC24V±10% |
Power Consumption | Diffusion type (15+3.5n) VA Suction type (15+7.5n) VA |
Backup Power Supply |
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Operating Temperature and Humidity | 0 to +40°C, 0 to 90% RH |
External Dimensions | Depends on the number of units |
Weight | Depends on the number of units |
Paint Color | Munsell 2.5PB 7.0/1.0 |
Specifications
(NV-400 / NV-410: Natural Gas Alarm Panel)
Model | NV-400 / NV-410 |
Sensor Type | Hot wire semiconductor |
Target Gas | Methane |
Display Range | 0-100%LEL |
Number of Indicator Unit | Up to 12 units 2/4/6/8/10/12 points type (2-point monitoring method per unit) |
Gas Concentration Display | ・LCD bar graph meter (53 dots x 2 rows) ・Direct reading scale for alarm set value and gas concentration ・Backlight ・Peak value hold when alarm occurs, release by reset |
Alarm Set Value Display | |
Backlight Peak Hold Function when Alarm Occurs | |
Alarm Set Value | NV-400 : 1st stage 10%LEL, 2nd stage 25%LEL NV-410 : According to specifications |
Alarm Accuracy | Alarm set value ±25% or less (under the same conditions) |
Alarm Delay | NV-400, 410 : Within 30 seconds at 1.6 times the alarm set value (excluding piping delay for suction type) |
Alarm Display |
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Alarm Sound |
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External Outputs |
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Alarm Delay | Selectable with dip switch (fixed at 10 seconds) |
Power Supply | AC Type : AC100-240V±10% DC type : DC24V±10% |
Power Consumption | Diffusion type (15+3.5n) VA Suction type (15+8n) VA |
Backup Power Supply |
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Operating Temperature and Humidity | 0 to +40°C, 0 to 90% RH |
External Dimensions | Depends on the number of units |
Weight | Depends on the number of units |
Paint Color | Munsell 2.5PB 7.0/1.0 |
Specifications
(NV-600: Methane Gas Alarm Panel)
(NV-600HS: Hydrogen Gas Alarm Panel)
Model | NV-600 | NV-600HS |
Sensor Type | Catalytic / Hot wire semiconductor | |
Target Gas | Methane | Hydrogen |
Display Range | Set to user specifications | |
Number of Indicator Unit | Up to 12 units 2/4/6/8/10/12 points type (2-point monitoring method per unit) | |
Display Method | Backlit LCD bar graph meter | |
Alarm Set Value/Setting Value Change | Depends on specifications/![]() ![]() | |
Alarm Accuracy | Alarm set value ±25% or less (under the same conditions) | |
Alarm Delay | Within 30 seconds at 1.6 times the alarm set value (excluding piping delay for suction type) | |
Alarm Indication | 1st alarm: 1st alarm lamp (red) flashes + voice message 2nd alarm: 2nd alarm lamp (red) flashes + voice message Fault alarm : Indicator unit unit power source lamp (orange) lit + voice message | |
External Outputs |
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Alarm Delay | Delay mode can be set individually (Delay time: 10 seconds standard) | |
Power Supply | AC Type : AC100-240V±10% 50/60Hz DC type : DC24V±10% | |
Power Consumption | Diffusion type : 15 + 3.5 x n (number of points) VA Suction type : 4 VA per point | |
Backup Power Supply |
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Operating Temperature and Humidity | 0 to +40°C, 0 to 90% RH | |
External Dimensions | Depends on the number of units | |
Weight | Depends on the number of units | |
Paint Color | Munsell 2.5PB 7.0/1.0 |