Products

ATEX / IECEx Explosion Proof Indicator

for 4 to 20mA input

The P27D is a loop powered digital indicator, ATEX/IECEx approved to Ex d IIC T6 Gb (Gas) and Ex tb IIIC Db (Dust) for zone 1 use. It allows a process variable from any 4 to 20mA current source to be monitored. Since the unit derives its power from the loop, no additional power supply or wiring is needed. A low voltage drop (5 Volts at 20mA) means it can be incorporated into almost any 2 wire loop where local or remote indication is needed. The P27D has a 4 digit display which can be configured to read from -999 to 9999 with a 4 to 20mA input signal. The decimal point location and engineering units are adjusted using membrane switches and the indicator can be mounted directly to our thermocouple & RTD sensors or alternatively wall/pipe mounted using the mounting brackets shown below.

  • Approved to Ex II 2 GD Ex d IIC Gb (Gas) and Ex tb IIIC Db (Dust)
  • IP68 die cast alloy enclosure as standard, 316SS version available on request
  • For local or remote indication of 4~20mA signal. Direct sensor or wall/pipe mounting options available.
  • Can accommodate a head mount 4~20mA transmitter if required

Enquiry Form

1. Indicator


2. Thread Size


3. Optional Mounting Bracket


4. Quantity Required


Contact Details


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Application Information


Note - Because of the techinal nature of these products, please fill in details of your application, so that we may contact to discuss the most suitable fitting and options.



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ATEX/IECEx Thermocouples with Pot Seal

ATEX/IECEx Thermocouples with Die Cast Alloy Head

ATEX/IECEx Thermocouples with St. / Steel Head

ATEX/IECEx Thermocouples with Dual Entry Head

ATEX/IECEx Thermocouples with Spring Loaded Terminal Block

ATEX/IECEx Thermocouples with Terminal Entry Gland

ATEX/IECEx Spring Loaded Thermocouples

ATEX/IECEx Thermocouple Feedthroughs
ATEX/IECEx RTD Pt100 Sensors with Pot Seal

ATEX/IECEx RTD Pt100 Sensors with Die Cast Alloy Head

ATEX/IECEx RTD Pt100 Sensors with St. / Steel Head

ATEX/IECEx RTD Pt100 Sensors with Dual Entry Head

ATEX/IECEx RTD Pt100 Sensors with Spring Loaded Terminal Block

ATEX/IECEx RTD Pt100 Sensors with Terminal Entry Gland

ATEX/IECEx Spring Loaded RTD Pt100 Sensors
ATEX/IECEx 4 to 20mA Indicators

ATEX/IECEx Temperature Transmitters

ATEX/IECEx Compression Fittings

ATEX/IECEx Terminal Heads

ATEX/IECEx Pressure and Vacuum Feedthroughs



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Tel.: 01895 252222, Fax: 01895 273540, Email: info@tc.co.uk