BA354D

Intrinsically Safe Loop Powered 2-Wire 4/20mA Rate Totaliser

• Intrinsically Safe
• ATEX II 1G EEx ia IIC T5
• Operating Temp. Range -20°C to +60°C
• IP66

The BA354D is a loop-powered field mounting rate totaliser with separate rate and total displays. When connected in series with a 4/20mA flow transmitter, the BA354D will display the rate of flow in engineering units and total flow in the same or different units. The BA354D only introduces a 1V drop which allows it to be installed in almost any 4/20mA loop. Main application of the BA354D is to integrate the 4/20mA output from a flow transmitter and to display the total flow in engineering units. The flow rate is shown on a second smaller display. A selectable root extractor enables the output from a differential flow transmitter to be displayed in linear units.

When fitted with optional alarms, the BA354D can detect low or high flows and can perform simple flow batching applications. Control and programming of the BA354D is performed via four push-buttons which are protected from damage and tampering behind a sealed cover. For applications requiring frequent adjustment, the instrument can be supplied with an external membrane keypad. All the programme functions are contained in easy to understand menus which may be protected by a user definable security code. Display scaling factors employ floating decimal points to simplify calibration.