PD6820 Explosion-Proof Loop-Powered Flow Rate/Totalizer
Brand: Precision Digital Corporation
The PD6820 is a rugged, full-featured, explosion-proof loop-powered flow rate/totalizer ideal for demanding applications in hazardous areas or in the harshest environmental conditions.
The product is CSA Certified as Explosion-Proof / Dust Ignition-Proof / Flame-Proof and ATEX & IECEx Certified as Explosion-Proof.
It is available in either an aluminum or stainless steel enclosure with 3/4" or M20 conduit connections.
It will operate down to -40°C and is approved for installation in areas where the temperature gets as cold as -55°C, however, the display will cease functioning.
The meter derives all of its power from the 4-20 mA loop thus making installation a simple matter of wiring the instrument into the existing loop. No external power is required.
Programming is performed using the four SafeTouch through-glass buttons and can be done without removing the cover. In addition, the meter can be scaled with or without a calibration signal.
The backlit LCD display consists of two lines. The top line of the display has five full digits and can display flow rate or total. The bottom line has seven alphanumeric characters and can display flow rate, total, grand total, a tag, or engineering units.
The backlight makes the display visible under any lighting condition and can be powered from either the 4-20 mA loop or from a separate DC power supply.
A pulse output is available that can be used to send a pulse to an external device for every user-specified amount of volume totalized.
Features- Fully-Approved Explosion-Proof Loop-Powered Rate/Totalizer
- 4-20 mA Input with ±0.03% Accuracy
- 3.0 Volt Drop (6.0 Volt Drop with Backlight)
- Easy Field Scaling in Engineering Units without Applying an Input
- 0.7" (17.8 mm) 5 Digits Main Display
- 0.4" (10.2 mm) 7 Alphanumeric Characters Secondary Display for Total, Tag, or Units
- Simultaneous 5-Digit Rate and 7-Digit Total Display
- Rate in Units per Second, Minute, Hour, or Day
- Display Open Channel Flow with Programmable Exponent Feature
- Open Collector Pulse or Alarm Output
- Display Mountable at 0°, 90°, 180°, & 270°
- SafeTouch Through-Glass Button Programming
- HART® Protocol Transparent
- Loop or External DC-Powered Backlight Standard
- Operating Temperature Range: -40 to 75°C (-40 to 167°F)
- Installation Temperature Range: -55 to 75°C (-67 to 167°F)
- CSA Certified as Explosion-Proof / Dust Ignition-Proof / Flame-Proof
- ATEX and IECEx Certified as Explosion-Proof
- Conformal Coated PCBs for Dust and Humidity Protection
- Password Protection for Programming Only
- 32-Point Linearization, Square Root Extraction and Programmable Exponent Function
- Wide Viewing Angle
- Built-In Flange for Wall or Pipe Mounting
- Explosion-Proof, IP68, NEMA 4X Die-Cast Aluminum & Stainless Steel Enclosures
- Two 3/4" NPT or M20 Conduit Openings
- 2" U-Bolt Kit Available
- 3-Year Warranty
Displaying prices & availability for Ohio, United States 43201 in USD. Change location.
- Product Type: Flow Rate / Totalizer
- Inputs: Current (4-20 mA)
- Power: Loop-Powered
- Display: Dual Line, 0.7" & 0.4" High, 5 & 7 Digits, Decimal, LCD
- Backlight: Standard
- Approvals: ATEX (FP), CE, CSA (XP), FM (XP), IEC (FP)
- Warranty: 3 years
Specifications
Display
- Five digits (-9999 to 99999): 0.70" (17.8 mm) high, 7-segment, automatic lead zero blanking
- Seven characters: 0.4" (10.2 mm) high, 14-segment
- Symbols: High & Low Alarm, Password Lock
Display Orientation
- Display may be Mounted at 90° increments up to 270° from default orientation
Display Update Rate
- Ambient > -25°C: 2 Updates/Second
- Ambient < -25°C: 1 Update/5 Seconds
Backlight
- White; Loop-powered or externally 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
- Externally powered backlight has consistent brightness
Programming Method
- Four SafeTouch® through-glass buttons when cover is installed. Four internal pushbuttons when cover is removed
Approvals & Certifications
- ATEX
- CSA
- IECEx
- UL
Noise Filter
- Programmable Lo, Med, Hi, or Off
Externally Powered Backlight
- Voltage Range: 9-36 VDC
- Supply V: 9 VDC, 12 VDC, 24 VDC, 36 VDC
- Max Power: 0.2 W, 0.25 W, 0.5 W, 0.75 W
Normal Mode Rejection
- 64 dB at 50/60 Hz
Operating Temperature
- -40° to 75° C
Storage Temperature
- -55 to 75° C
Relative Humidity
- 0 to 90 % Non-Condensing
Connections
- Screw terminals accept 12 to 22 AWG wire
Material of Construction
- AL Models: ASTM A413 LM6 die-cast aluminum, copper-free, enamel coated
- Gasket (O-Ring) Fluoroelastomer
- Window Borosilicate glass
- SS Models: ASTM A743 CF8M investment-cast 316 stainless steel
Environmental Protection
- NEMA 4X, IP68 Explosion-proof
Mounting
- May be mounted directly to conduit
- Two slotted flanges for wall mounting or NPS 1-1/2" to 2-1/2" or DN 40 to 65 mm pipe mounting
Conduit Connection
- PD6820-0K1: Two 3/4" NPT
- PD6820-0K1-M20: Two M20
- PD6820-0K1-SS: Two 3/4" NPT
- PD6820-0K1-SS-M20: Two M20
Overall Dimensions (W x H x D)
- 5.65" x 5.25" x 4.86" (144 mm x 133 mm x 124 mm)
Weight
- Aluminum: 4.8 lbs (2.18 kg)
- Stainless Steel: 8.7 lbs (4.3 kg)
Warranty
- 3 Years Parts and Labor
