• Induskey INK104 Ammonia  NH3 Gas Detector
  • Induskey INK104 Ammonia  NH3 Gas Detector

Induskey INK104 Ammonia NH3 Gas Detector

No.INK104

The Induskey INK104 is a high-performance, industrial-grade ammonia NH3 gas detector engineered for continuous 24-hour online monitoring in hazardous environments. This explosion-proof instrument utilizes advanced electrochemical sensing and temperature compensation to ensure precise detection in Zone 1 and 2 areas. Housed in a rugged IP66-rated aluminum alloy casing, it provides versatile 4-20mA and RS485 dual signal outputs for seamless integration with PLC and DCS systems. Globally certified with CE and RoHS marks, the INK104 offers a reliable, international-standard safety solution.

  • Induskey INK104 Ammonia  NH3 Gas Detector

Description

Industrial-Grade Explosion-Proof Monitoring Solution

1. Product Overview

The Induskey INK104 is a high-performance, industrial-grade ammonia  gas detector designed for continuous 24-hour online monitoring in hazardous environments. Engineered for reliability in Zone 1 and Zone 2 areas, the INK104 combines advanced electrochemical sensing technology with a rugged, explosion-proof design.

This instrument provides critical safety data to upper-tier systems such as PLCs and DCS, ensuring rapid detection of toxic leaks to protect personnel and assets. With integrated temperature and humidity compensation, the INK104 delivers high-precision measurements even in challenging industrial climates.

2. Key Features

  • High-Precision Sensing: Utilizes premium electrochemical sensors for sensitive response, excellent repeatability, and long-term stability.
  • Dual Signal Output: Features 3-wire 4-20mA analog and RS485 digital outputs for seamless integration with >90% of industrial controllers.
  • Non-Intrusive Calibration: Integrated infrared remote control allows for zero-point adjustment and alarm setting without opening the housing in hazardous areas.
  • Rugged Construction: Die-cast aluminum alloy housing with IP66 ingress protection and a stainless-steel nameplate for extreme durability.
  • Smart Diagnostics: Automated zero-point calibration and a 32-bit microprocessor ensure fast response times and minimal false alarms.
  • Triple-Proof Protection: Advanced circuitry designed to resist high-concentration overload, electromagnetic interference, and lightning strikes.

3. Technical Specifications

Parameter

Specification

Detection Gas

Ammonia (NH3)

Detection Principle

Electrochemical

Measurement Range

0–10 / 100 / 1000 ppm (Customizable)

Resolution

0.001 / 0.01 / 0.1 / 1 ppm (Sensor dependent)

Accuracy

3% F.S.

Repeatability

1% F.S.

Response Time (T_90)

20 seconds

Output Signal

4–20mA (3-wire) / RS485 (Modbus)

Power Supply

24V DC (Range: 12–30V DC)

Power Consumption

 1.0W

Operating Temperature

-20°C to +50°C

Operating Humidity

10% – 95% RH (Non-condensing)

Operating Pressure

86 – 106kPa

Ingress Protection

IP66

Explosion-Proof Rating

Ex d II C T6 Gb

Sampling Method

Natural Diffusion (Optional: Pump-suction / Flow-through)

Housing Material

Die-cast Aluminum Alloy

Electrical Interface

M20 × 1.5 (Optional: G3/4)

Dimensions

168 times 140 times 93 mm (Standard)

Weight

Approx. 1.5 kg (Standard) / 1.8 kg (with Alarm)

4. Electrical & Interface

  • Analog Output: Standard 3-wire 4-20mA for long-distance signal transmission.
  • Digital Communication: RS485 interface supporting standard Modbus protocol for digital networking.
  • Relay Output (Optional): Two sets of 1A/24V DC normally open (NO) passive contacts for controlling external fans, valves, or sirens.
  • Compatibility: Fully compatible with PLC, DCS, DDC, and third-party gas alarm controllers.

5. Certifications & Compliance

The INK212 is manufactured in accordance with strict international and national safety standards:

  • Explosion-Proof: CNEx23.2972X (Ex d II C T6 Gb)
  • European Conformity: CE Certified
  • Environmental Safety: RoHS Compliant
  • Standards Compliance: GB 3836.1-2010, GB 3836.2-2010, GB 50493-2009, GB 12358-2006.

6. Applications

  • Cold Storage & Refrigeration: Detection of $NH_3$ leaks in industrial cooling systems.
  • Chemical & Petrochemical: Monitoring in fertilizer production and chemical processing plants.
  • Agriculture & Livestock: Ammonia level control in large-scale farming and poultry operations.
  • Water Treatment: Safety monitoring in wastewater treatment facilities.
  • Laboratories: Atmospheric monitoring for scientific research.

7. Mechanical & Installation

  • Mounting: Wall-mounted installation near potential leak sources.
  • Visual Indicators: High-brightness LCD displaying real-time concentration;
  • LED status indicators (Green: Power, Red: Alarm, Yellow: Fault).
Alarm System: Optional integrated 85dB audible and visual (strobe) alarm.

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