Serial text [Data] display, Intrinsically safe, field mounting

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  • ATEX & IECEx intrinsic safety certification, optional FM & cFM.
  • High contrast 86.5mm x 45mm display with backlight
  • Modbus, BEKA & Legacy protocols
  • Operator push buttons & two solid state outputs
  • Robust IP66 GRP enclosure
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This BA484D displays text and simple graphics in a hazardous process area. Incorporating a high contrast backlit display, push buttons and two solid state outputs, this low cost operator interface is ideal for simple process control applications.

The instrument, which has ATEX, FM and IECEx intrinsic safety certification, communicates and is powered via a 2 or 3 wire system from a galvanic isolator in the safe area. To simplify hazardous area installations, the dedicated BA201 galvanic isolator which has RS232 and RS485 safe area ports can power up to four BEKA intrinsically safe Serial Text Displays.

The text display supports Modbus, BEKA and legacy protocols and includes eleven standard screen formats which display up to eight variables on each screen, some with bargraphs. If custom display formats are required, these can be constructed using the free BEKA ScreenWriter software.

A powerful Pattern Matching facility is resident in the Serial Text Display which enables the capture and display of data contained in proprietary ASCII serial strings.

Other serial text displays in our range include:


To select options for your application please refer to the following table.



BA484D Serial text [Data] display
Mounting Field
Protection IP66
Display High contrast 86.5mm x 45mm
with backlight, up to 8 variables
Interface via BA201 (other isolators may be used)

RS232 or RS485
Protocol Modbus, BEKA & Legacy
Operator push buttons 4
Connections for remote operator push buttons 6
Solid state outputs 2
Europe ATEX ATEX Group II Category 1G
Ex ia IIC T5 Ga -40°C ≤ Ta ≤ +60°C
International IECEx Ex ia IIC T5 Ga -40°C ≤ Ta ≤ +60°C
USA FM certification 3610 Entity CL I, II, III Div. 1
Gp A, B, C, D, E, F & G T4 Ta = +60°C

3611 Nonincendive CL I, II, III Div. 2
Gp A, B, C, D, E, F & G T4 Ta = +60°C
Canada cFM certification Entity CL I, II, III Div. 1
Gp A, B, C, D, E, F & G T4 Ta = +60°C

IPA CL I, II, III Div. 2
Gp A, B, C, D, E, F & G T4 Ta = +60°C
Europe ATEX Dust certification Group II Category 1D
Ex ia IIIC T80°C IP66 Da
-40°C ≤ Ta ≤ +60°C
International IECEx Dust certification Ex ia IIIC T80°C IP66 Da
-40°C ≤ Ta ≤ +60°C



Datasheet PDF logodownload
ATEX certificate PDF logodownload
FM certificate PDF logodownload
cFM certificate PDF logodownload
IECEx certificate PDF logodownload
Ingress certificate PDF logodownload
Instruction manual PDF logodownload
Modbus interface guide PDF logodownload
Programming guide PDF logodownload
Declaration of Conformity PDF logodownload
ScreenWriter software & instrument simulator ZIP logodownload
CAD files ZIP logodownload


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