INTRODUCTION
The PD662 NEMA 4X, CSA Certified loop-powered meter is perfect for applications where a simple, inexpensive display is required and AC power is not available. The PD662 derives all its power from the 4-20 mA loop. The PD662 is scaled using four push buttons and can be done without applying an actual calibration signal. The PD662's display will read up to 2999; we call this 3+ digits! The loop-powered backlighting option lets you see the display under any lighting condition and is powered completely from the 4-20 mA loop. This means there is no need for additional wiring and never any batteries to change. The PD662 is housed in a rugged NEMA4X enclosure and is provided with one ½" NPT pipe conduit hole.The PD662 is also available with an optional DC-powered heater that allows the PD662 to operate in temperatures as low as -55°C.
QUICKSTART
The PD662 is designed to be easily wired into your current loop and quickly programmed.
Wiring
The two wire power/signal connection is made on the back of the PD662 on the three position removable terminal block. Follow instructions printed on the unit for two wire loop-powered connections with or without backlight.
PD662 Input Connections with Backlight
PD662 Input Connections without Backlight
PD662 Heater Connections
PROGRAMMING
The PD662 Survivor comes calibrated and scaled at the factory to display a 4.00 to 20.00 mA signal on startup. To change the scaling, follow along using the 4 button interface.
PD662 Menu Progression DIMENSIONS
SPECIFICATIONS
Except where noted all specifications apply to operation at +25°C.
General
Display: 0.6" (15.24 mm) LCD, 3½+ digits; -1999 to 2999
Display Update Rate: 2 Updates/Second
Over-Range: Display Flashes 2999
Under-Range: Display Flashes -1999
Programming Method: 4 Front Panel Pushbuttons
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
Environmental: Operating Temperature for CSA Certification: -40 to 75°C.
Functional Temperature Range: -40 to 85°C. Storage Temp.: -40 to 85°C.
Relative Humidity: 0 to 90% non-condensing.
Connections: Removable screw terminals accept 12 to 22 AWG
Tightening Torque: Screw terminal connectors: 4.5 lb-in (0.5 Nm)
Enclosure: Impact-resistant polyester plastic, body color gray, clear cover with blue faceplate; NEMA 4X, IP66; ½" conduit hole provided at base
Weight: 9.3 oz (264 g)
Overall Dimensions: 3.15" x 4.33" x 2.76" (80 mm x 110 mm x 70 mm) (W x H x D)
Warranty: 3 years parts & labor
Input
Input: 4-20 mA
Accuracy: ±1 count
Temperature Drift: 50 PPM/°C from -40 to 85°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; 4.9 VDC @ 20 mA with backlight option.
Equivalent Resistance: 85 Ω @ 20 mA without backlight; 185 Ω @ 20 mA with backlight
Loop-Powered Backlight Option: Factory installed only with field wiring option. Powered directly from the 4-20 mA loop, no batteries required. The display brightness will increase as the input signal current increases.
Heater Option
Power: 24 VDC, 11 W Maximum.
Required Switch & Fuse: A CSA Approved fuse rated min 30 VDC, 1 A, T and a readily accessible switch or a circuit breaker shall be provided to facilitate the disconnection of power to the heater.
Environmental: Operating Temperature for CSA Certification: -55 to 75°C.
Functional Operation: -55 to 85°C. Storage Temperature: -55 to 85°C.
Relative Humidity: 0 to 90% non-condensing.
Temperature Cutoff: Internal 104°C thermal cutoff for over temperature protection.
CSA Certification
CSA Certified: U.S. & Canada. 2252 05 — Process Control Equipment. 2252 85 — Process Control Equipment, U.S. Standards.
CSA File Number: 157123
CSA Applicable Requirements: CAN/CSA C22.2 No. 61010-1-04 Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part 1: General Requirements UL 61010-1:2004, 2nd Edition Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part 1: General Requirements.
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