PD8-6081 ProtEX-MAX Explosion-Proof Feet & inches Modbus Scanner with Dual Analog Inputs

Brand: Precision Digital Corporation

The ProtEX-MAX™ PD8-6081 feet & inches Modbus® scanner offers all the functionality of the ProVu PD6081 as a fully FM, CSA, ATEX, and IECEx approved explosion-proof product. 

It displays level information on a specially designed feet & inches display, instead of the usual decimal format.

The PD8-6081 also has dual analog inputs, for integrating traditional 4-20 mA or voltage inputs in the display scanning. 

The scanner can be setup as a Modbus master, slave, or snooper. 

Various math functions may be applied to the analog or Modbus inputs, such as addition, difference, average, and ratio. 

The PD8-6081 includes a 24 VDC power supply to drive the transmitter and can be equipped with four internal relays and two 4-20 mA outputs. 

It can be programmed and operated without opening the housing by using the built-in SafeTouch® through-glass buttons.
  • SunBright Display Standard
  • Display level in feet and inches
  • Modbus RTU master, slave, or snooper mode with RS-485 serial communications
  • Master mode to can up to 16 Modbus PVs from Modbus level or multivariable transmitters
  • Snooper mode to scan up to 16 Modbus PVs polled by a different Modbus master
  • Up to four math channels for addition, difference, average, ratio & more
  • SafeTouch® through-glass button programming
  • Isolated 24 VDC @ 25 mA transmitter power supply
  • 0-20 mA, 4-20 mA, 0-5 V, 1-5 V, and ±10 V inputs
  • Onboard USB and ScanView programming software



  • ± 0.03%

Approvals & Certifications

  • ATEX, II 2 GD Ex D IIC T* Gb Ex Tb IIIC T90° C Db
  • CSA Class I, Division 1, Groups B, C, D, Class II, Division 1, Groups E, F, G Class III, Division 1, Class I, Zone 1 Ex D IIC Zone 21 Ex Tb IIIC T90° C
  • FM Class I, Division 1, Groups B, C, D Class II, Division 1, Groups E, F, G Class III, Division 1, T5/T6 Class I, Zone 1, AEx D, IIC Gb T5/T6 Zone 21, AEx Tb IIIC T90° C
  • IEC Ex D IIC T* Gb Ex Tb IIIC T90° C Db


  • Modbus


  • 6-Digit Display

Enclosure, Body Material

  • Aluminum

Environmental Protection

  • IP66
  • IP68
  • NEMA 4X
  • NEMA 7
  • NEMA 9


  • ± 10 VCD
  • 0-20 mA
  • 4-20 mA

Operating Temperature

  • -40° to 65° C (-40° to 150° F)

Operating Voltages

  • 50/60 Hz

Power Supply

  • 12-36 Vdc
  • 85-265 Vac

Relay Output

  • 2 or 4 SPDT
  • 4 SPST

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