ProtEX-Pro PD6800 Explosion-Proof Process & Level Meter

Brand: Precision Digital Corporation

The ProtEX-Pro PD6800 is one of Precision Digital's most advanced and feature-packed explosion-proof, loop-powered indicators.

The fact that this meter is loop-powered means that there is no need to run additional, costly power lines into a hazardous area.

Like all ProtEX products, the PD6800 carries FM, CSA, ATEX, and IECEx approvals for use in hazardous areas.

It features a dual-line display that can be easily scaled in the field for any 4-20 mA analog input.

The display has a five digit upper display, a seven alpha-numeric character lower display, and is available with a twenty-segment bar graph for level applications.

Two features that really make the PD6800 stand out are its wide viewing angle display and SafeTouch® through-glass buttons.

These buttons allow the PD6800 to be programmed and operated through the glass, thus eliminating the need to remove the cover in a hazardous area.
  • 4-20 mA Input Loop-Powered
  • Modern, Sleek and Practical Enclosure
  • 5-Digit, 0.7" / 17.8 mm Upper Display
  • 7 Alphanumeric Character, 0.4" / 10.2 mm Lower Display
  • SafeTouch® Through-Glass Button Programming
  • Password Protection
  • 32-Point , Square Root, or Exponential Linearization
  • Loop or External DC-Powered Backlight Standard
  • 3.0 V Drop / 6.0 V with Backlight
  • Explosion-proof, IP68, NEMA 4X Enclosure
  • Flanges for Wall or Pipe Mounting
  • HART® Protocol Transparent
  • Operates from -40 to 75°C

PRECISION DIGITAL ProtEX-Pro Process Meter with Backlight View More
Out of Stock
  • Options - Backlight, Level bar Graph
Out of Stock


Approvals & Certifications

  • ATEX, II 2 GD. Ex d IIC T6 Gb. Ex Tb IIIC T85° C Db
  • CSA, Class I, Div. 1, Groups B, C, D, Class II, Div. 1, Groups E, F, G, Class III, Div. 1, T6. Class I, Zone 1, Ex d IIC T6
  • FM, Class I, Div. 1, Groups B, C, D, Class II, Div. 1, Groups E, F, G, Class III, Div. 1, T6. Class I, Zone 1, AEx d IIC T6 Gb. Zone 21, AEx Tb IIIC T85° C
  • IEC, Ex d IIC T6 Gb. Ex Tb IIIC T85° C Db


  • HART

Conduit Connection

  • 3/4” NPT


  • 5-Digits - Upper Display
  • 7 Alphanumeric Character - Lower Display

Enclosure, Body Material

  • Explosion-proof Die Cast Aluminum with Glass Window

Environmental Protection

  • IP66
  • IP68
  • NEMA 4X


  • Linear
  • Programmable Exponent
  • Square Root


  • 0 to 90 % Non-Condensing


  • 4-20 mA

Operating Temperature

  • -40° to 75° C (-40° to 167° F)


  • 0.2 W
  • 0.25 W
  • 0.5 W
  • 0.75 W

Storage Temperature

  • -40° to 85° C (-40° to 185° F)

Supply Voltage

  • 9-36 Vdc

Voltage Drop

  • 3.0 Vdc at 20 mA without Loop-Powered Backlight
  • 6.0 Vdc at 20 mA with Loop-Powered Backlight
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