Electronic control unit PM.21

Product overview
The PM.21 pump module provides the reference-air supply required for ZIROX® oxygen probes. It is designed for industrial installations and can be mounted on a DIN rail (like the E713 probe electronics). The unit delivers a stable, preset flow and is suitable for use with oxygen measurement chains that require an external reference gas supply.

Technical data PM.21

• Power supply: 24 V DC, 50 mA
• Flow: 10 l/h (factory preset, adjustable via rotary potentiometer)
• Protection degree: IP20
• Mounting: DIN-rail compatible

Compatibility and application
The PM.21 is intended to supply reference air for ZIROX® probes and to be used in combination with probe electronics such as the E713. It is suitable for laboratory and industrial gas analysis installations where a small, adjustable reference-air source is required. Ensure the reference gas is clean and dry to maintain probe performance.

Downloads

• Data sheet (PDF) available