Precision Digital

Precision Digital PD6870 Loop-Powered Process Meter

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  • Fully-Approved Stainless Steel or Aluminum Explosion-Proof Loop-Powered 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)
  • Installation Temperature Range: -55 to 75°C (-67 to 167°F) (Stainless Steel Models Only)
  • 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 (Aluminum Models Only)
  • CSA Certified as Explosion-Proof / Dust-Ignition Proof / Flame-Proof
  • ATEX and IECEx Certified as Flame-Proof and Protection by Enclosure (Aluminum Models Only)
  • Wide Viewing Angle
  • Flanges for Wall or Pipe Mounting
  • Explosion-Proof, IP68, NEMA 4X Die-Cast Aluminum or 316 Stainless Steel Enclosure
  • Two 3/4″ NPT Conduit Openings (Model with Two M20 Conduit Openings Available)
  • 2″ U-Bolt Kits Available
  • Stainless Steel Tag Available
  • 3-Year Warranty

The Precision Digital ProtEX FarVu PD6870 is a rugged and reliable explosion-proof process meter. With its 1″ display digits and field-mountable enclosure, it is specifically designed to meet the demands of hazardous areas and harsh environmental conditions.

One of the key features of the PD6870 is its loop-powered operation, drawing power directly from the 4-20 mA loop. This eliminates the need for additional power lines, saving both time and money, especially in hazardous areas where running new power lines can be costly and challenging.

The PD6870 is a part of the ProtEX series, known for its exceptional quality and safety standards. It carries FM, CSA, ATEX, and IECEx approvals, ensuring its suitability for use in hazardous areas.

Programming the PD6870 is a breeze with its four easily accessible control dials, conveniently located on the front of the meter. This makes configuration and adjustment quick and hassle-free.

Product Ratings & Approvals

Display: 3½ digit LCD, 1″ (25.4 mm); -1,999 to 1,999
Display Update Rate: 2.5 Updates/Second
Display Orientation: Display may be mounted at 90° increments up to 270° from default orientation
Overrange: Display reads 1 on the left most digit
Programming Method: Four front mounted trim potentiometers accessed when the cover is removed.
Recalibration: Recommended at least every 12 months.
Normal Mode Rejection: 60 dB rejection ratio
Operating Temperature Range: -40 to 75°C
Storage Temperature Range: -40 to 75°C
Relative Humidity: 0 to 90% non-condensing
Connections: Screw terminals accept 12 to 22 AWG wire
Enclosure: Explosion-proof die cast aluminum with glass window, 0.30% max copper content, corrosion resistant epoxy coating, color: blue. NEMA 4X, IP68. Two ¾” NPT threaded conduit openings. One ¾” NPT nickel plated brass conduit plug with 10 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″ (144 mm x 133 mm x 124 mm) (W x H x D)
Weight: 5.00 lbs (80 oz, 2.27 kg)
Warranty: 3 years parts and labor

Input

Input: 4-20 mA
Accuracy: ±0.1% of full span ±1 count
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.
Maximum Voltage Drop: 1 VDC @ 20 mA without backlight; 4 VDC @ 20mA with loop-powered backlight
Input Overload: Over current protection to 2 A max.
HART Transparency: Analog input will not interfere with existing HART communications on the wired 4-20 mA signal
Loop-Powered Backlight Option: Factory installed only. Powered directly from the 4-20 mA loop, no batteries required. Backlight can be enabled or disabled via alternative wiring of terminal block. The display brightness will increase as the input signal current increases.

Product Ratings & Approvals

FM: Explosion-proof for use in Class I, Division 1, Groups B, C, D. Class II, Division 1, Groups E, F, G. Class III, Division 1; T6. Class I, Zone 1, AExd IIC T6 Gb. Zone 21, AEx tb IIIC T85°C. Ta = -40 to 75°C.
Enclosure: Type 4X & IP66. Certificate number: 3040391
ATEX: II 2 G D. Ex d IIC T6 Gb. Ex tb IIIC T85°C Db IP68. Ta = -40 to 75°C. 
Certificate number: Sira 10ATEX1116X
IECEx: IECEx SIR 10.0056X. Ex d IIC T6 Gb. Ex tb IIIC T85 C Db IP68. Ta = -40 to 75°C
CSA: Class I, Division 1, Groups B, C, D. Class II, Division 1, Groups E, F, G. Class III, Division 1; T6. Class I, Zone 1, Ex d IIC T6. 
Ta = -40 to 75°C. Enclosure: Type 4X & IP66.
Certificate number: 11 2325749

Connections


PD6870 Input Connections with Loop-Powered Backlight

 

Dimensions

Data Sheet: PD6870 Data Sheet
Instruction Manual: PD6870 Instruction Manual

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