Fixed ammonia alarm (NDS-9A-NH3)

NDS-9A-NH3 Fixed ammonia alarm (NDS-9A-NH3)

Sensor application products

Electrochemical formula

Applied products

ammonia

Applied products

explosion prevention

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Product Description

The fixed ammonia alarm (NDS-9A-NH3) detects and displays the ammonia (NH₃) concentration in a space in real time, and when a dangerous concentration is reached, it reliably sounds an alarm with a buzzer and LED.The measurement range is 0 to 100 ppm, and the alarm setting values are compatible with 20 ppm and 50 ppm, helping to ensure safety at the workplace.

Alarm history and concentration fluctuations are automatically recorded as logs and can be saved in CSV format using a USB memory.In addition, relay contact output allows linking with external devices, making it suitable for integration into safety systems in factories and facilities.

🔷 Usage

Refrigerant ammonia leak monitoring
Ammonia concentration control in chemical and fertilizer manufacturing plants
Safe management of ammonia emissions in livestock facilities (livestock barns, poultry houses, etc.)
Ammonia gas monitoring in sewage and wastewater treatment plants

Detection target gas	Ammonia (NH₃)
range of measurement	0 to 100 ppm
Alarm setting value	20 ppm, 50 ppm (2 levels)
Measurement principle	Constant potential electrolysis type
Air sampling method	Diffusion type
Response Time	90% response within 30 seconds
Display method	7-segment LED display (4 digits, with dots)
Alarm method	2-stage buzzer, 8-point LED flashing
Log saving function	Records concentration and alarm history every second
Data Output	CSV files can be saved to a USB memory stick
Operating environment conditions	Temperature: 0 to 50°C, humidity: 20 to 85% RH (no condensation)
电源	AC100V±10%, cord length approx. 190 cm
Power	5.0 VA or less
External dimensions/weight	130 x 90 x 45 mm, approx. 360 g (including power cord)
Accessories	取扱説明書、保証書
Other features	Zero point calibration function, log memory storage, automatic circuit check/sensor check, relay output function

Detection target gas

Ammonia (NH₃)

range of measurement

0 to 100 ppm

Alarm setting value

20 ppm, 50 ppm (2 levels)

Measurement principle

Constant potential electrolysis type

Air sampling method

Diffusion type

Response Time

90% response within 30 seconds

Display method

7-segment LED display (4 digits, with dots)

Alarm method

2-stage buzzer, 8-point LED flashing

Log saving function

Records concentration and alarm history every second

Data Output

CSV files can be saved to a USB memory stick

Operating environment conditions

Temperature: 0 to 50°C, humidity: 20 to 85% RH (no condensation)

电源

AC100V±10%, cord length approx. 190 cm

Power

5.0 VA or less

External dimensions/weight

130 x 90 x 45 mm, approx. 360 g (including power cord)

Accessories

取扱説明書、保証書

Other features

Zero point calibration function, log memory storage, automatic circuit check/sensor check, relay output function

NDS-9A-NH3 Fixed Ammonia Alarm (NDS-9A-NH3)

NDS-9A-NH3 Fixed ammonia alarm (NDS-9A-NH3)

Product Description

🔷 Usage

Specifications for the fixed ammonia alarm (NDS-9A-NH3)

Fixed ammonia alarm (NDS-9A-NH3)

basic specifications

Instruction Manuals

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