S4000TH H2S Gas Detector

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Ryan recruited colleague George H. Deike to help realize his vision for a new company. Recognizing the critical importance of dependable, safe mining equipment, they went straight to one of the country’s great thinkers: Thomas Edison. The brilliant inventor helped Ryan and Deike create the electric cap lamp which, over the next 25 years, reduced mine explosions by an astounding 75 percent. Of all his inventions, this was the one that did the most for humanity, Edison would later say in life.

In the decades that have come and gone, MSA has continued to lead the charge for workplace safety. We’ve led the way with small first-aid kits and portable methane detectors, and harnessed new technologies to produce state-of-the-art thermal imaging cameras, ballistic helmets, and leading edge systems for gas and flame detection.

But we’ve never forgotten where we came from, or why we’re here. We’re called The Safety Company for a reason – a very important reason: Our goal, every single day, is to provide our customers with dependable, high-quality products, instruments, and service to help ensure a safe return home at the end of each work day.

The S4000TH Intelligent Gas Sensor is a microprocessor-based transmitter designed for use with General Monitors’ thin film metal oxide semiconductor (TFMOS) sensors to detect H2S gas.

The unit features one person calibration and can virtually self-calibrate by simply activating a magnetic switch and applying gas. It detects hydrogen sulfide in 0-20 ppm, 0-50 ppm or 0-100 parts per million (ppm) levels over a wide temperature range.

  • Meets stringent ISA S92.0.01, Part 1, 1998 performance standard set by ISA and approved by FM
  • Event logging stores fault, gas check, calibration, and alarm event history
  • HART and Modbus communication provides complete status and control capability in the control room
  • Industry standard 4-20mA output for remote alarm and fault indication
  • Warning, alarm & fault relays provides local alarm capability
  • Calibration, calibration check, setup mode simplifies operation and maintenance
  • Remaining sensor life indication reduces downtime by providing an estimate of remaining sensor life
Find out more about the S4000TH H2S Gas Detector

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