EC28B氧气变送器

Superior technology
Wherever gas hazards are to be found, the EC28 provides the best solution for safe monitoring. ATEX-certified design, built-in EX-certified horn and bright LED lights allow safe operation. The gas alarm is transmitted to the central control panel, simultaneously warning the control room and the worker in the danger area.

Smart sensor technology
Installation and sensor exchange are quick and easy using pre-calibrated smart, plug-in sensors. One-man calibration/ adjustment is possible directly at the transmitter, without opening the housing.

Versions for each application

EC28 basic unit
EC28 D with additional display of gas concentration
EC28 DA with additional bright LED lights and loud horn. The extra costs for installing an EX-certified horn and audible alarm are omitted 
EC28 DAR with additional external alarm relay
EC28 B with additional bus connection
EC28 DB with additional display of gas concentration
EC28 DAB with additional bright LED lights and loud horn. The extra costs for installing an EX-certified horn and audible alarm are omitted 
EC28 i intrinsically safe version
EC28 Di instrinsically safe, with additional display of gas concentration


The advantages at a glance

Three choices – no display with display or with display and built-in audible and visual alarms

ATEX-Certification II 1G EEx ia IIC T4/ II 2G EEx em [ib] IIC T4 

BVS 04 ATEX E 132 X / BVS 04 ATEX E 132 X   0158

Ex-certified visual and loud acoustic alarm

Less wiring required

Simple sensor exchange using smart, plug-in sensors

Long sensor lifetime

Low maintenance costs

Status and function display directly on the transmitter

One-man calibration/ adjustment without opening casing

Operation possible in inaccessible places via remote control (option)

Remote control (option)
Some flammable gases are lighter than air (e.g. methane). If a transmitter is installed close to the ceiling, it can be connected by a fixed installed cable with a plug connection to the remote control. Thus, all adjustments can be made comfortably from floor level. With one remote control device, an unlimited number of transmitters can be controlled in this way.

Using transmitters without display, the remote control shows the current values on its’ own display. The display of the remote control mimics the transmitter display exactly. Inspection, maintenance and adjustment are therefore greatly simplified. Using the remote control inspection, service and calibration can be performed easily by one person.