Systech EC91 Main Amplifier PCB – Part No. 091-024 (Oxygen Transmitter)

Overview

The EC91 Main Amplifier PCB (091-024) is the OEM amplifier board for the Systech EC91 oxygen transmitter, used in industrial O₂ measurement and process safety/quality applications. Replacing a failed amplifier restores signal integrity, stability and transmitter performance without a full instrument swap.
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Key Features

• Genuine Industrial Physics – Systech Instruments (UK) spare part

• Purpose-built amplifier board for EC91 O₂ transmitter

• Restores calibration stability and low-noise signal conditioning

• Supplied inspected and function-tested; ESD-safe packing

Typical Applications

• Process oxygen monitoring, glove boxes, furnaces, packaging & QA lines

• Oil & gas, specialty gases, pharmaceuticals, heat-treat and lab environments

Compatibility & Notes

• Part code: 091-024 (EC91 Main Amplifier PCB).

• Provide your transmitter model/serial and photos to confirm revision match.

• After installation, run zero/span checks and verify alarm setpoints.

FAQ

Q: Is calibration required after board replacement?

A: Yes—perform zero/span and functional checks per EC91 procedures.

Q: Do you support complete EC91 transmitters?

A: We can quote full instruments and additional spares on request.

Call to Action

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