Indicating temperature transmitter, Intrinsically safe, panel mounting

Ex logo


  • ATEX, FM, cFM & IECEx intrinsic safety certification.
  • Large 5 digit display + 31 segment bargraph
  • HART® communication
  • Transmitter and sensor diagnostics
  • Loop powered
  • IP66 front panel
  • Optional:
        Loop powered backlight
Download logoProduct downloads

This second generation BA478C loop powered indicating temperature transmitter provides a large, easy to read digital temperature display plus accurate 4/20mA analogue and HART® digital outputs. Optional alarm outputs enable under and over temperature warnings to be generated and an optional display backlight enhances display visibility in poor lighting conditions.

The transmitter has a resistance thermometer, thermocouple, resistance or voltage input and may be configured using the front panel push buttons or via HART® digital communication.

The BA478C is intrinsically safe, when protected via a Zener barrier or galvanic isolator the transmitter may be installed in any gas hazardous area.

The instrument can be supplied calibrated to customer's requirements free of charge and can be labelled to show units of measurement, tag number and application.

Other indicating temperature transmitters in our range include:


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



BA478C Indicating temperature transmitter
Mounting Panel 144 x 72mm
Protection Front IP66, rear IP20
Display 5 digit 20mm high + 31 segment bargraph
Europe ATEX II 1G Ga Ex ia IIC T5
-40°C ≤ Ta ≤ +70°C
USA FM Entity CL I Div. 1
Gp A, B, C & D
T4 Ta = 70°C
Nonincendive CL I Div. 2
Gp A, B, C & D
T4 Ta = 70°C
Canada cFM Entity CL I Div. 1
Gp A, B, C & D
T4 Ta=70°C
Nonincendive CL I Div. 2
Gp A, B, C & D
T4 Ta = 70°C
International IECEx Ga Ex ia IIC T5
-40°C ≤ Ta ≤ +70°C
Alarms Yes
Backlight - loop powered Yes



Datasheet PDF logodownload
ATEX certificate PDF logodownload
FM certificate PDF logodownload
cFM certificate PDF logodownload
IECEx certificate PDF logodownload
HART® certificate PDF logodownload
Ingress certificate PDF logodownload
Instruction manual PDF logodownload
BA47X/67X Indicating Temperature
Transmitter HART® Interface Guide
PDF logodownload
Declaration of Conformity PDF logodownload
HART® device files ZIP logodownload
CAD files ZIP logodownload


Return to the top of this page