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Help CenterHoneywell Two-wire NH3 Detector S3000MK S3KAL2+S3KXSA1SS Ammonia Gas Alarm
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The Honeywell S3000MK S3KAL2+S3KXSA1SS is a comprehensive two-wire ammonia (NH3) gas detection system designed for reliable and continuous monitoring in industrial environments.
**System Overview:**
This system is a fixed-point gas detection solution consisting of a controller and a sensor. It utilizes a two-wire connection, which simplifies installation by combining power and signal transmission on a single pair of wires, reducing cabling costs and complexity. The system is engineered for the precise detection of ammonia gas leaks, providing early warning to help ensure personnel safety and protect assets.
**Key Components:**
1. **Controller/Display Unit (S3KAL2):** This is the central monitoring unit. It typically features a digital display for real-time gas concentration readings (usually in ppm - parts per million). It houses audible and visual alarms (strobes, buzzers) and provides relay outputs for triggering external safety devices like ventilation fans, sirens, or process shutdown systems. It is designed for panel mounting in control rooms or safe areas.
2. **Sensor/Transmitter (S3KXSA1SS):** This is the remote sensing element designed for installation in the potentially hazardous area where ammonia gas may be present. It is housed in a robust, weatherproof enclosure suitable for industrial environments. The sensor detects ammonia gas concentrations and transmits a proportional signal back to the controller via the two-wire loop. The "SS" suffix typically indicates a stainless-steel construction for enhanced corrosion resistance.
**Primary Technical Parameters:**
* **Target Gas:** Ammonia (NH3)
* **Detection Principle:** Typically electrochemical sensor (specific to ammonia).
* **Measurement Range:** Commonly 0-100 ppm (standard for ammonia toxicity monitoring). Specific ranges may vary.
* **Output Signal:** Two-wire, 4-20 mA analog output, linearly proportional to gas concentration.
* **Power Supply:** The loop is typically powered by 12-30 V DC supplied from the controller.
* **Alarm Setpoints:** User-configurable, usually with two levels (e.g., Low Alarm: 25 ppm, High Alarm: 50 ppm). These settings comply with common exposure limits (TLV, STEL).
* **Response Time (T90):** Typically
* **Sensor Life:** Expectancy of approximately 2-3 years under normal operating conditions, depending on exposure and
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