1. Company Overview & Products:

️· Magnetrol International, Inc. designs and manufactures ultrasonic level switches.
️· ECHOTEL is their brand name for ultrasonic level switches.
️· They have a global presence with headquarters and offices in the USA, Belgium, Brazil, Canada, China, Germany, Dubai, India, Italy, Singapore, and the United Kingdom.

2. Key Product Models: 961 (Single Point) & 962 (Dual Point)

️· Purpose: These switches are designed for liquid level sensing in various applications. They provide reliable level detection and alarming capabilities.
️· Key Features & Benefits:
- Pulsed Signal Technology: Offers superior performance in challenging process conditions.
- Innovative Transducer Design: The dual-gap transducer allows significant actuation length between the upper and lower gaps.
- Adjustable Time Delay: Reduces false alarms caused by turbulence or splashing.
- Advanced Self-Test: Continuously tests the electronics, transducer, and piezoelectric crystals, with manual testing options.
- Multiple Materials: Available in 316 Stainless Steel, Hastelloy C-276, Monel, Kynar, and CPVC to suit different chemical compatibility requirements.
- Wide Range of Actuation Lengths: Allows for flexibility in application.
️· Model 961 (Single Point): Designed for basic liquid level detection.
️· Model 962 (Dual Point): Allows for two independent level measurements (upper and lower).

3. Technical Specifications & Performance:

️· Power Supply: Both models operate on various voltage inputs (AC and DC).
️· Output Signals:
- Level Relays (DPDT for 962, SPDT for 961) – Provide switching for external devices.
- Malfunction Relay – Alerts to potential problems.
- Current Shift Output (for 961)
️· Performance Characteristics:
- Repeatability: +/- 0.078" (2mm)
- Response Time: 0.5 seconds
- Operating Temperature Range: Varies depending on material (generally -40° to 325°F or -40° to 163°C)
- Maximum Pressure: Varies by material, ranges from 2000 psig (138 bar) to 1500 psig (103 bar).

4. Materials & Construction:

️· Transducer Materials: Offers a wide range of materials for different applications, including:
- 316 Stainless Steel
- Hastelloy C-276
- Monel
- Kynar (for NPT applications)
- CPVC (for NPT applications)
️· NPT Rating: Certain materials have NPT (National Pipe Thread) ratings, indicating pressure suitability.

5. Safety and Compliance:

️· SIL 2 Loops: The switches are suitable for use in Safety Integrity Level 2 (SIL 2) applications.
️· Worldwide Safety Approvals: Designed to meet various safety standards.
️· 3-A Authorized: Indicates compliance with sanitary standards for food and beverage processing.
️· Electromagnetic Requirements: Meets CE Electromagnetic requirements (EN 61326).



This provides a comprehensive overview of Magnetrol's ECHOTEL ultrasonic level switches, focusing on their key features, technical specifications, and suitability for a variety of industrial applications.