Tachometers, Intrinsically safe, field mounting

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  • ATEX, IECEx, ETL and cETL intrinsic safety certification.
  • Proximity detector, open collector, magnetic pick-off, voltage pulse, or switch contact input.
  • Separate speed and run-time displays
  • Isolated synchronous pulse output
  • Optional:
        Internally powered display backlight
        Isolated Alarms
        Isolated 4/20mA output
        Stainless steel legend plate
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  PDF logoNEW application guide

These easy to use, intrinsically safe tachometers can display speed in engineering units from a wide variety of pulse output sensors such as a proximity detector or switch contact. To simplify maintenance, the instruments also contain a second display which can simultaneously show the run-time of the monitored machinery. International certification allows worldwide installation.

Accessories, include a display backlight, isolated dual alarms and an isolated 4/20mA output.

Tachometers can be supplied configured and fitted with a customer specified printed scale card showing the units of measurement for no additional charge. An optional stainless steel legend plate is also available which can be supplied laser engraved with customer specified tag and application information.

Other tachometers in our range include:


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




BA314E Tachometer BA314G Tachometer#
Mounting & Enclosure Field 141 x 212mm Field 122 x 120mm
Separate terminal compartment Yes No
Protection IP66
Display Speed: 8 digits 18mm high
Run-time: 6 digits 12mm high
Europe ATEX Group II Category 1G
Ex ia IIC T5 Ga
-40°C ≤ Ta ≤ +70°C
Group II Category 1GD
Ex ia IIC T5 Ga
-40°C ≤ Ta ≤ +70°C
Ex ia IIIC T80°C Da
-40°C ≤ Ta ≤ +60°C
USA & Canada
Intrinsic safety
Class I Div 1 Gp A, B, C, D T5 (USA & Canada)
Class II Div 1 Gp E, F, G. Class III Div 1 (USA & Canada)
Class I Zone 0 AEx ia IIC T5 Ga (USA)
Ex ia IIC T5 Ga (Canada)
-40°C ≤ Ta ≤ 70°C
USA & Canada
Class I Div 2 Gp A, B, C, D T5
Class II Div 2 Gp F, G. Class III Div 2
-40°C ≤ Ta ≤ 70°C
International IECEx Ex ia IIC T5 Ga
-40°C ≤ Ta ≤ +70°C
Ex ia IIC T5 Ga
-40°C ≤ Ta ≤ +70°C
Ex ia IIIC T80°C Da
-40°C ≤ Ta ≤ +60°C
Backlight Yes
Alarms Included Yes
4/20mA output Included Yes




Datasheet PDF logodownload PDF logodownload
ATEX certificate PDF logodownload PDF logodownload
ETL & cETL certificate PDF logodownload PDF logodownload
IECEx certificate PDF logodownload PDF logodownload
Ingress certificate PDF logodownload PDF logodownload
Instruction manual PDF logodownload PDF logodownload
Application guide PDF logodownload PDF logodownload
Declaration of Conformity PDF logodownload PDF logodownload
CAD files ZIP logodownload ZIP logodownload

# Shown with optional separately powered backlight.