Compact gas transmitter controller for smaller-scale applications

The GMA22, from GfG, is a compact controller designed for smaller applications of up to four digital transmitters or one analogue transmitter.

The GMA22 features a user-friendly display that indicates the measured value, and a highly visible and audible alarm that ensures reliable safety notifications. In addition, it comes with four relays and a data logger that offer all the benefits of a “big” controller while requiring less space for installation and being more economical.

This transmitter controller can be supplied either by a 230 V AC power connection or by an external 24 V DC power supply unit. It is suitable for every GfG transmitter and offers remote calibration capabilities, making it easy to manage from a remote location.

The GMA22 also includes communication capabilities via analogue (4–20 mA / 0.2–1 mA / ACDC) or digital (RS-485) signals, making it a versatile option for a variety of applications. The controller comes with housing for wall mounting with an IP64 ingress protection rating, providing reliable protection against harsh environmental conditions.

With three relays that can be configured individually and a buzzer, the GMA22 transmitter controller ensures that alarms and notifications are communicated to the appropriate personnel in a timely and efficient manner.