Features

INTRODUCTION

The PD6870 is a rugged, loop-powered meter with 1" display digits in an explosion-proof enclosure 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.



It is programmed using four easy to access front-mounted control dials with no complex or difficult to read programming menus necessary for setup. The numeric display will read from -1999 to 1999 over a 2000 count user adjustable scaling span. The backlight 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.



 

CONNECTIONS

PD6870 Input Connections with Loop-Powered Backlight

DIMENSIONS

SPECIFICATIONS

Except where noted all specifications apply to operation at +25°C.

General

Display: 3½ digit LCD, 1" (25.4 mm); -1999 to 1999

Display Update Rate: 2.5 Updates/Second

Overrange: Display reads 1 on the left most digit

Programming Method: Four front mounted rotary control dials 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 with backlight; 4 VDC @ 20 mA with loop-powered backlight

Input Overload: Over current protection to 2 A max.

Enclosure Approvals

FM & CSA: FM Approved & CSA Certified. Explosion-proof for use in Class I, Division 1, Groups B, C, and D; Dust-Ignition-proof for Class II, Division 1, Groups E, F, and G, Class III; hazardous (classified) locations, indoor and outdoor (Type 4X and IP66)

USA: Indoor and outdoor (Type 4X and IP66); Ta=-40°F to +185°F

FM Certificate: 3032880

Canada: Indoor and outdoor (Type 4X); Ta=-40°C to +85°C

CSA Certificate: 2210414

ATEX & IECEX: ATEX Certified: Group 2, Category 1 (Zone 1), Gases, Vapors, Mists, or Dusts: II 2 G D, Ex d IIC Gb, Ex tb Db IIIC IP68.

Ta=-40°C to +85°C. ATEX Certificate: Sira 08ATEX1325U

IECEx Certified: Flameproof, Gas Group IIC, Ex d IIC Gb, Ex tb IIIC IP68.

Ta=-40°C to +85°C. IECEx Certificate: IECEx SIR 08.0126U