FM Approvals Canadian Standards Association Atmosphères ExplosiblesEuropean Conformity

The ProtEX-FarVu PD6870 is a rugged, explosion-proof, loop-powered meter with 1" display digits ideal for demanding applications in hazardous areas or in the harshest environmental conditions. The meter derives all of its power from the 4-20 mA loop with a small 1 volt drop for easy installation in almost any system.

The meter is programmed using four easy to access front-mounted potentiometers with no complex or diffi-cult to read programming menus necessary for setup. The numeric display will read from -1000 to 1999 over a 2000 count user adjustable scaling span. The back-light option lets you see the display under any lighting condition and is powered from the 4-20 mA loop with no additional power supply required.

The enclosure is provided with two threaded conduit holes and integrated pipe or wall mounting slotted flanges.

Features

  • Fully-Approved Explosion-Proof Loop-Powered Process Meter
  • 4-20 mA Input
  • 1 Volt Drop (4 Volt Drop with Backlight)
  • 1.0" (25.4 mm) 3½ Digits LCD Display; -1000 to 1999
  • Display Mountable at 0°, 90°, 180°, & 270°
  • HART® Protocol Transparent
  • Loop-Powered Backlight Option
  • Operating Temperature Range: -40 to 75°C (-40 to 167°F)
  • Zero & Span Potentiometer Adjustments for Easy Field Scaling
  • Conformal Coated PCBs for Dust and Humidity Protection
  • FM Approved as Explosion-Proof / Dust-Ignition Proof / Flame-Proof
  • CSA Certified as Explosion-Proof / Dust-Ignition Proof / Flame-Proof
  • ATEX and IECEx Certified as Flame-Proof
  • Wide Viewing Angle
  • Flanges for Wall or Pipe Mounting
  • Explosion-Proof, IP68, NEMA 4X Die-Cast Aluminum Enclosure
  • Two ¾" NPT Threaded Conduit Openings (One Plug Installed)
  • 2" U-Bolt Kits Available
  • Stainless Steel Tag Available
  • 3-Year Warranty

General

Display: 3½ digit LCD, 1" (25.4 mm); -1000 to 1999
Display Orientation: Display may be mounted at 90° increments up to 270° from default orientation
Display Update Rate: 2.5 Updates/Second
Backlight: White; Loop-powered. Backlight can be enabled or disabled via alternative wiring of terminal block. Loop-powered backlight brightness will increase as the input signal current increases.
Display Overrange: Display reads 1 on the left most digit
Programming Method: Four (coarse and fine for zero and span) potentiometers accessed when the cover is removed.
Recalibration: Recommended at least every 12 months.
Normal Mode Rejection: 60 dB rejection ratio
Environmental: Operating Temperature Range: -40 to 75°C
Storage Temperature Range: -40 to 75°C
Relative Humidity: 0 to 90% non-condensing. Printed circuit boards are conformally coated.
Connections: Screw terminals accept 12 to 22 AWG wire
Enclosure: NEMA 4X, IP68 Explosion-proof die cast aluminum, 0.30% max copper content,
corrosion resistant epoxy coating
Color: Blue
Window: Glass
Two ¾" NPT threaded conduit openings.
One ¾" NPT nickel plated brass conduit plug with 12 mm hex key fitting installed.
Mounting: May be mounted directly to conduit. Two slotted flanges for wall mounting or NPS 1½" to 2½" or DN 40 to 65 mm pipe mounting.
Overall Dimensions: 5.65" x 5.25" x 4.86" (W x H x D)
(144 mm x 133 mm x 124 mm)
Weight: 5.00 lbs (80 oz, 2.27 kg)
Warranty: 3 years parts & labor. See Warranty Information and Terms & Conditions for complete details.

Input

Input: 4-20 mA
Accuracy: ±0.1% of full span ±1 count
Maximum Voltage Drop & Equivalent Resistance:
Without BacklightWith Loop-Powered Backlight
1 VDC @ 20 mA4 VDC @ 20 mA
50 Ω @ 20 mA200 Ω @ 20 mA
Temperature Drift: 150 PPM/°C from -40 to 75°C ambient
Decimal Point: User selectable decimal point
Calibration Range: 4 mA input: -1000 to +1000;
20 mA between 20 and 2000 counts greater than 4 mA display.
Two point linear display span.
Input Overload: Over current protection to 2 A max.
HART Transparency: The meter does not interfere with existing HART communications; it displays the 4-20 mA primary variable and it allows the HART communications to pass through without interruption. The meter is not affected if a HART communicator is connected to the loop. The meter does not display secondary HART variables.

Product Ratings & Approvals

FM: Explosion-proof for use in:
Class I, Division 1, Groups B, C and D
Dust-ignition proof for use in:
Class II/III, Division 1, Groups E, F and G; T6
Flame-proof for use in:
Class I, Zone 1, AEx d Group IIC; T6
Protection by Enclosure:
Zone 21, AEx tb IIIC; T85°C
Ta = -40 to 75°C.
Enclosure: Type 4X, IP66.
Certificate number: 3040391

CSA: Explosion-proof for use in:
Class I, Division 1, Groups B, C and D
Dust-ignition proof for use in:
Class II/III, Division 1, Groups E, F and G; T6
Flame-proof for use in:
Zone 1, Ex d IIC T6
Ta = -40 to 75°C.
Enclosure: Type 4X & IP66/IP68.
Certificate number: 2325749

ATEX: II 2 G D. Flame-proof for use in:
Zone 1, Ex d IIC T6 Gb
Protection by Enclosure for use in:
Dust Atmospheres (Zone 21)
Ex tb IIIC T85°C Db IP68.
Ta = -40°C to +75°C
Certificate number: Sira 10ATEX1116X

IECEx: Flame-proof for use in:
Zone 1, Ex d IIC T6 Gb
Protection by Enclosure for use in:
Dust Atmospheres (Zone 21)
Ex tb IIIC T85°C Db IP68.
Ta = -40°C to +75°C
Certificate number: IECEx SIR 10.0056X

Connections


PD6870 Input Connections with Loop-Powered Backlight



Dimensions

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