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, including its optional backlight feature. It can be easily scaled in the field using four push buttons; with or without applying an actual calibration signal. The PD662’s display will read up to 2999; we call this 3½+ digits! The PD662 is housed in a rugged NEMA 4X enclosure and is provided with one ½” NPT pipe conduit hole.
Display: 0.6″ (15.2 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. 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: 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: 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; 3.7 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.
HART Transparency: Analog input will not interfere with existing HART communications on the wired 4-20 mA signal
Heater OptionPower: 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 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.
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