The PD663 is an explosion-proof, loop-powered field meter from Precision Digital that has FM Approval, CSA Certification for Explosion-Proof, Dust-Ignition Proof, and Flame-Proof, as well as ATEX & IECEx Certification for Flame-Proof and Protection by Enclosure. The PD663 is easy to install and program, and can be read in various lighting conditions including bright sunlight. The loop-powered feature eliminates the need for additional power lines in hazardous areas, minimizing installation costs. With a wide operating temperature range of -40 to 75°C, the meter is suitable for various applications. The PD663 has two 1/2″ NPT threaded conduit openings and flanges for wall or pipe mounting. Calibration is quick and easy with the four internal push buttons. The meter’s display provides 3½+ digits and can read up to 2999.
Precision Digital PD663 ProtEX-Lite Explosion-Proof Loop-Powered Meter
- Explosion-Proof / Flame-Proof Loop-Powered Process Meter
- 4-20 mA Input
- 0.6″ (15.2 mm) 3½+ Digits LCD Display; -1999 to 2999
- 1.7 Volt Drop (4.7 Volt Drop with Backlight)
- HART® Protocol Transparent
- Loop-Powered Backlight Option
- Operates from -40 to 75°C (-40 to 167°F)
- Four Internal Buttons for Easy Field Scaling
- Display Mountable at 0°, 90°, 180°, & 270° Degrees
- Flanges for Wall or Pipe Mounting
- Explosion-Proof, IP68, NEMA 4X Die-Cast Aluminum Enclosure
- 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 and Protection by Enclosure
- Conformal Coated PCBs for Dust and Humidity Protection
- Two ½” NPT Threaded Conduit Openings (One Plug Installed)
- Pipe Mounting Kits
- Stainless Steel Tag Available
Display: 0.6″ (15.2 mm) LCD, 3½+ digits; -1999 to 2999
Display Update Rate: 2 Updates/Second
Display Orientation: Display may be mounted at 90° increments up to 270° from default orientation.
Over-Range: Display Flashes 2999
Under-Range: Display Flashes -1999
Programming Method: 4 Front Panel Pushbuttons (behind glass). The magnet may also be used for programming; P/N PDA-MAG.
Noise Filter: Programmable HI, LOW, or OFF
Recalibration: Recalibration is recommended at least every 12 months.
Max/Min Display: Max/Min readings reached by the process are stored until reset by the user or until power to the meter is turned off.
Non-Volatile Memory: All programmed settings are stored in non-volatile memory for a minimum of ten years if power is lost.
Normal Mode Rejection: 64 dB at 50/60 Hz
Operating Temperature: -40 to 75°C
Storage Temperature: -40 to 75°C
Relative Humidity: 0 to 90% non-condensing. Printed circuit boards are conformally coated.
Connections: Removable screw terminals accept 12 to 22 AWG
Tightening Torque: Screw terminal connectors: 4.5 lb-in (0.5 Nm)
Enclosure: Explosion-proof cast aluminum with glass window, 0.30% max copper content, corrosion resistant powder coating, color: blue. NEMA 4X, IP68. Two ½” NPT threaded conduit openings. One ½” NPT nickel plated brass conduit plug with 10 mm hex key fitting installed.
Mounting: May be mounted directly to conduit. Two mounting holes for 1.5″ pipe or wall mounting.
Weight: 40 oz (1.13 kg)
Overall Dimensions: 4.30″ x 4.27″ x 3.62″ (109 mm x 108 mm x 92 mm) (W x H x D)
Warranty: 3 years parts & labor
Input: 4-20 mA
Accuracy: ±1 count
Temperature Drift: 50 PPM/°C from -40 to 75°C ambient
Decimal Point: User selectable decimal point
Minimum Span: Input 1 & Input 2: 0.40 mA
Maximum Voltage Drop: 1.7 VDC @ 20 mA; 4.7 VDC @ 20 mA with backlight option.
Equivalent Resistance: 85 Ω @ 20mA without backlight; 245 Ω @ 20mA with backlight
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.
HART Transparency: Analog input will not interfere with existing HART communications on the wired 4-20 mA signal
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
PD663 Input Connections with Backlight
PD663 Input Connections without Backlight