PD6600 Loop Leader Loop-Powered Process Meter

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The Loop Leader PD6600 is a general-purpose, loop-powered, 1/8 DIN process meter. The four front panel buttons make setup and programming of the meter simple and intuitive. A dual-line display featuring five digits on the top line and eight digits on the bottom line, preprogrammed engineering units, and optional bargraph display (PD6604) or feet and inches display (PD6603) provide a clear and attractive presentation of the process. The units of measure can be changed as needed within a unit class (e.g. volume, temperature, pressure) without the need to re-scale the meter.

The dual-line display can be customized by the user to operate in such a way as to satisfy a specific application. Typically, the top line is used for the process variable while the bottom line is used for engineering units, custom tag, or process variable percentage of full scale. Three programmable function keys and a digital input come standard and allow the meter to be customized for use in specialized applications.

All models come equipped with two open collector outputs and are available with two solid state relays and a 4-20 mA analog output. These outputs can be programmed for alarm indication, signal retransmission via pulse or analog signal, pump control, and a number of other useful features.

The fact that this meter is loop-powered means that there is no need to run additional, costly power lines; the meter gets all of the power it needs from the 4-20 mA loop. The Loop Leader loop-powered process meter is built in a shallow-depth case with a NEMA 4X/IP65 front and features loop-powered backlighting and a wide -40 to 167°F (-40 to 75°C) operating temperature range. It doesn't matter if it's indoors or outdoors, in bright sunlight or a dimly lit plant, or in an area that is wet, dirty, hot, or cold, the Loop Leader can go just about anywhere.

Features

  • Loop-Powered Backlight with Red Backlight for Alarm Conditions
  • Loop-Powered Process Meter
  • 1.5 Volt Drop (4.5 Volt Drop w/ Backlight)
  • NEMA 4X, IP65 Front
  • -40 to 167°F (-40 to 75°C) Operating Temperature Range
  • Five Digit Top Line
  • Alphanumeric tag names
  • Dual Line Display
  • 1/8 DIN Shallow Depth Case
  • Optional Loop-Powered Solid State Relays
  • Optional 4-20 mA Analog Output
  • Open Collector Output Standard
  • Optional Bargraph Display (PD6604)
  • Timer functions for open collectors and relays
  • Relay pump alternation based on level and time
  • Relay runtime and cycle count
  • Multi-Point Linearization, Square Root, Programmable Exponent, and Round Horizontal Tank Input Conditioning Functions
  • Automatic units conversion for volume, height, temperature, pressure, weight, and rate
 
Specifications

General

Display

Top: 0.7” (17.8 mm), Bottom: 0.4” (10.2 mm); 14-segment alphanumeric

PD6602 & PD6604: Top: 5 digits -9999 to 99999

PD6603: Top: 5 digits -99 ft. 11 in. 15/16 to 999 ft. 11 in. 15/16

Bottom: 8 digits -9,999,999 to 99,999,999

Bottom line separated by commas

Display Update Rate

Ambient > -10°C: 1 Update/Second

Ambient > -20°C: 1 Update/2 Seconds

Ambient  -40°C: 1 Update/10 Seconds

Overrange

PD6602 & PD6604: Top: 99999; Bottom: 99,999,999 (flashing)

PD6603: Top: 999 ft. 11 15/16 in.; Bottom: 99,999,999 (flashing)

Underrange

PD6602 & PD6604: Top: -9999; Bottom: -9,999,999 (flashing)

PD6603: Top: -99 ft. 11 15/16 in.; Bottom: -9,999,999 (flashing)

Programming Method

Front panel

Noise Filter

1, 2, 4, 8, 16 sec.

Noise Filter Bypass

0.1 to 99.9% FS

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.

Password

Programmable password restricts modification of programmed settings.

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 range: -40 to 75°C
Storage temperature range: -40 to 85°C
Relative humidity: 0 to 90% non-condensing

Connections

Removable screw terminals accept 12 to 22 AWG wire

DI Digital Input Contacts

2.1 VDC on contact. Connect normally open contacts across DI+ to DI-

DI Digital Input Logic Levels

Logic High: 2.4 to 30 VDC (max)

Logic Low: 0 to 0.9 VDC

Enclosure &
Materials

1/8 DIN, high impact plastic, NORYL® Polyphenylene Ether & Polystyrene blend (PPE PS) Resin, UL 94V-0, color: gray

Gasket: Silicone Rubber

Faceplate: LEXAN® Polycarbonate (PC) Film

Buttons: Silicone rubber; Color: black

Mounting

1/8 DIN panel cutout required. Two panel mounting bracket assemblies provided

Tightening Torque

Screw terminal connectors: 4.5 lb-in (0.5 Nm)
Mounting screws: 8.0 lb-in max. (0.9 Nm)

Overall Dimensions

4.68" x 2.45" x 3.79" (119 mm x 62 mm x 96 mm) (W x H x D)

Weight

 8.7 oz (247g) w/ option board

Warranty

3 years parts and labor

Process Input

Accuracy

±0.02% of span ±1 count, Square root and programmable exponent: 10-100% FS

Function

PV1: Linear, square root*, or programmable exponent*

PV2: Linear or Round Horizontal Tank

*PD6602 & PD6604 Only

Low-Flow Cutoff

PD6602 & PD6604: 0.0 to 999,999.9

PD6603: 0 ft. 0 in. to 999 ft. 11 in. 15/16

Temperature Drift

25 PPM/°C from -40 to 75°C ambient

Decimal Point

Up to four decimal places: On top

Up to seven decimal places: On bottom

Scaling and Display Range

Input: 4-20 mA

Scaling Range: -999,999.9 to 999,999.9

Display Range: Top Line: -9999 to 99999; Bottom Line: -9,999,999 to 99,999,999

Voltage Drop

With backlight off: 1.5 V max

With backlight on: 4.5 V max

Equivalent Resistance

With backlight off: 75 Ω @ 20 mA

With backlight on: 225 Ω @ 20 mA

Input Overload

Over current protection to 1 A maximum

Open Collector Output

Rating

Two NPN, Isolated open collector, 30 VDC @ 90 mA maximum

Output Assignment

Pulse, Alarm, Timer, or Disable

Pulse Output Source

 PV (PV1, PV2) or Test Frequency

Pulse Output Factor

 0.000001 to 999,999.9

Pulse Width

2 ms; 50% duty cycle

Pulse Output Frequency

250 Hz maximum
0.1 Hz minimum

Quadrature Pulse Output

Available for Output 2 (90° behind Output 1)

Alarm Output Source

Assign to PV (PV1, PV2) or Digital Input

High or Low Alarm

User programmable for high or low alarm

Alarm Deadband

0-100% FS, user programmable

On & Off Time Delay

0 to 9,999 seconds

Fail-Safe Operation

Independent for each output

Alarm Operation

 Auto, Auto-man, Latch, Latch w/clear

Alarm Indication

 Red backlight, Flashing display, Alarm symbol (!)

Alarm Message

On or Off; User programmable, 8 characters maximum

Displayed every 10 sec for 1 sec on bottom

Alarm Acknowledge

Front panel ACK button or external digital input resets output and screen indication

Auto Initialization

When power is applied to the meter, relays will reflect the state of the input to the meter

Timer Output

One-shot or Continuous

Off Time Delay: 1 sec to 99:59:59 (hrs:min:sec)

On Time: 1 sec to 99:59:59 (hrs:min:sec)

Timer Start/Stop

Front panel or digital input, user selectable

Solid State Relays

Rating

Resistive Load: 250 VAC/DC @ 1 Amp

Inductive Load: 1/10 HP @ 125/250 VAC/DC

Noise Suppression

Metal oxide varistors across outputs

Relay Assignment

Alarm, Pump Control, Timer, or Disable

Pump Alternation Time: 0 to 999:59 (hrs:min)

Alarm Output Source

Assign to PV (PV1, PV2) or Digital Input

High or Low Alarm

User programmable for high or low alarm

Alarm Deadband

0-100% FS, user programmable

On & Off Time Delay

0 to 9,999 seconds

Fail-Safe Operation

Independent for each relay

Alarm Operation

Auto, Auto-man, Latch, Latch w/clear

Alarm Indication

Red backlight, Flashing display, Alarm Message, Alarm symbol (!)

Alarm Message

On or Off; User programmable, 8 characters maximum. Displayed every 10 sec for 1 sec on bottom

Alarm Acknowledge

Front panel ACK button or external digital input resets output and screen indication

Auto Initialization

When power is applied to the meter, relays will reflect the state of the input to the meter

Timer Output

One-shot or Continuous

Off Time Delay: 1 sec to 99:59:59 (hrs:min:sec)

On Time: 1 sec to 99:59:59 (hrs:min:sec)

Timer Start/Stop

Front panel or digital input, user selectable

4-20 mA Transmitter Output

Output Source

PV1, PV2, re-transmit; reverse scaling allowed

Scaling Range

1.00 to 23.0 mA

Disable

High impedance state, less than 1 mA

Calibration

Factory calibrated 4.00 to 20.00 mA

Underrange

1.0 mA, 3.5 mA, or 3.8 mA (If input < 3.5 mA), or Off; user selectable

Overrange

20.5 mA, 20.8 mA, or 23.0 mA (If input > 20.5 mA), or Off; user selectable

Isolation

500 V

Accuracy

±0.05% FS ±0.001mA

Temperature Drift

0.5 µA/°C max from -40 to 75°C ambient

External Loop Power Supply

7.0 VDC to 30.0 VDC maximum

Output Loop Resistance

10-750 Ω @ 24 VDC; 10-1100 Ω @ 30 VDC

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