SKU: SENS-1091
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Amphenol Wilcoxon 780A-IS Accelerometer Sensor, Intrinsically Safe, 0.1 V/g, 30 VDC, 1/4-28 UNF Thread

₹67,869.00 (Inclusive of all taxes)
Out of Stock

The Amphenol Wilcoxon 780A-IS is an intrinsically safe industrial accelerometer delivering a 0.1 V/g analog output for vibration monitoring in hazardous areas. Compatible with standard 2-wire 4-20mA loop-powered systems up to 30 VDC, it features a rugged 1/4-28 UNF threaded mount for secure installation in demanding environments from -55°C to 120°C.

Features

  • Intrinsically Safe certified for operation in hazardous (Ex) environments.
  • 0.1 V/g sensitivity with a ±80 g measurement range for precise vibration analysis.
  • Wide 2-wire loop-powered operation up to 30 VDC.
  • Rugged industrial construction with a 1/4-28 UNF threaded mounting hole.
  • Extended operating temperature range from -55°C to 120°C.

Out of stock

Description

The 780A-IS accelerometer utilizes a piezoelectric sensing element to generate a low-impedance voltage output proportional to vibration acceleration. Its intrinsically safe design incorporates energy-limiting barriers, making it suitable for installation in Zone 0, 1, and 2 hazardous locations without requiring an external safety barrier.

Engineered for continuous machinery health monitoring, the sensor provides a stable analog signal for integration with PLCs, DCS, and condition monitoring systems. The hermetically sealed, stainless steel housing and robust 1/4-28 UNF mounting thread ensure long-term reliability in harsh industrial settings such as rotating equipment, pumps, and compressors.

Key Features

  • Intrinsically Safe (IS) certification for use in explosive atmospheres.
  • Piezoelectric sensing principle with 0.1 V/g sensitivity and ±80 g range.
  • 2-wire, loop-powered design compatible with 4-20mA transmitters and up to 30 VDC supply.
  • Industrial-grade stainless steel housing with IP67-equivalent sealing.
  • Wide operating temperature range from -55°C to 120°C for extreme environments.
  • Standard 1/4-28 UNF threaded hole for direct stud mounting.
  • Low-noise, high-stability analog voltage output signal.
  • Designed for predictive maintenance and critical asset protection.

Applications

  • Vibration monitoring of pumps, compressors, and fans in oil, gas, and petrochemical plants.
  • Predictive maintenance and condition monitoring on rotating machinery within hazardous (ATEX/IECEx) zones.
  • Structural health and vibration analysis in chemical processing and pharmaceutical facilities.
  • Integration into permanent online monitoring systems for turbines, gearboxes, and critical industrial assets.

Technical Specifications

Manufacturer Part Number780A-IS
BrandAmphenol Wilcoxon
Sensor TypePiezoelectric Accelerometer
Sensitivity0.1 V/g
Measurement Range±80 g
Output TypeAnalog Voltage
Power SupplyUp to 30 VDC (2-wire loop)
Safety CertificationIntrinsically Safe (IS)
Operating Temperature-55 °C to 120 °C
Mounting1/4-28 UNF Tapped Hole
Housing MaterialStainless Steel
Weight62 g

Frequently Asked Questions

What does Intrinsically Safe certification mean for this accelerometer?

The Intrinsically Safe (IS) certification indicates the 780A-IS accelerometer is designed to limit electrical and thermal energy to levels below what is required to ignite a specific hazardous atmospheric mixture. This allows it to be installed directly in Zone 0, 1, or 2 hazardous locations (e.g., explosive gas environments) without needing an external safety barrier, simplifying system design for oil, gas, and chemical plants.

What is the required wiring and power supply for the 780A-IS sensor?

The sensor operates on a 2-wire, loop-powered system compatible with standard 4-20mA transmitters. It requires a DC power supply up to 30 VDC. The output is an analog voltage signal proportional to vibration (0.1 V/g). Always ensure wiring complies with IS installation standards for your specific hazardous area classification.

How do I mount the 780A-IS accelerometer?

Mount the sensor using the included SF6 mounting stud or a compatible 1/4-28 UNF threaded bolt directly onto a clean, flat surface on the machinery to be monitored. Ensure the mounting surface is clean and free of paint or debris for optimal high-frequency response and reliable measurements. The stud provides electrical isolation.

Package Includes

  • 1 x Amphenol Wilcoxon 780A-IS Accelerometer Sensor
  • 1 x SF6 Mounting Stud

Additional Information

Weight 0.062 kg
Dimensions 10 × 8 × 4 cm

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